🔧 BUILD Broke EF turbo LS SC400 Build

General Information

I may have never posted on here before, but for some reason I am inspired to post my build up here. I am going to copy and paste from another site to get us all up to speed. I will try and clean up anything that was specific to the thread I am pulling from. Now that I am getting started on the main fab work I will update this thread in real time.

For anyone who doesn't want to read it all here is the short version. I bought the car on a whim in June of 2016. It is a 1993 SC400 that was from this area, and was meticulously maintained at the dealer. I was going to stay with the original 1UZ so you will see I started installing a procharger on it. I ended up selling off the stock motor, trans, ecu and harness to a local guy and got an iron gen 3 5.3 motor. I am doing a Precision LS-7675 turbo with a truck manifold based kit (more or less). It will be backed up by a TH400, and for now will use a stock ECU with HP Tuners.

Alright, time for the massive dump of info.


A couple years ago I picked up a 1993 SC400. I wasn't really looking for a car, but a late night search found this one, and I have always liked them. I decided to go down and give it a look in person, and it was even cleaner than it looked in the pics so I bought it. Here are a couple pics of when I first got it.

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I wont bore you with all of the middle shit, just hit you with the highlights.

I removed a couple tons of wiring that used to be an alarm system.
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I had the gauge cluster fixed/updated with white LED's.
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Fixed up the wiring that was kind of hacked up from the alarm. Changed the steering wheel, etc. etc.
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I then updated the climate control, and put in a nice head unit.
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Just a bunch of little changes and fixing up small things here and there. The car was extremely well maintained and really did not NEED much. My plan was always to make it fast of course, and do drag week with it. The factory 1UZ motor is a very good starting point and can make some really solid HP. The stock trans can be built to live as well. Packaging was kind of a nightmare as you can see, but other than that it was a good option.

I ended up stumbling upon a great deal on a procharger kit that was actually on an SC400 locally. It was a P1SC that came with some shitty piping, a way too small intercooler, but a Tial blow off valve that actually had the right spring it it! I started installing that setup.
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You can see one of the things that was constantly in the back of my mind for making this a drag week car. Look how complicated that engine looks! If I had a problem on the road not only would parts be an issue, but just the time to do simple repairs is a nightmare. For example the starter is under the intake manifold in the valley.

So when a local kid hurt the motor in his SC I offered mine up to get him back on the road since that is his only car. We struck a deal and I ripped that shit out the next day.
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It happened to work out that a 5.3 LS came up for sale for the same money I just sold my old motor for, so I jumped on it.
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Its update time! Nothing really exciting, but I have been slowly chipping away at things.

First up was wiring. I am planning on using the stock ECU for a little bit with HP Tuners, so I had some wiring work to do.

Harness as I got it with the motor
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Stripped of all of the brittle loom and crappy electrical tape.
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Unfortunately I ended up having to move it around after I had stripped off all of the crap, and it got pretty tangled.
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So I decided to just fully depin everything since I only need a few things from that mess.
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Here is the pile of junk I didn't need from that harness. There is actually a bit more, but that is 99.99% of it.
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And here is everything all apart, ready to be cleaned, routed, extended, and loomed.
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Next up I got some mounts for the LS from Dan Perlenfein. He even made me a custom trans mount for the TH400. These are very nice pieces, and I got them really quickly.
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Got them set in the car, fit like a glove! (BTW they are not bolted down in any of these pics, just have the nut on the other side a few turns)
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Next up I pulled the oil pan off my motor so I could drop it in and see what I am working with.
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Bit of wishful thinking seeing of the truck intake would clear the hood. It wont.
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So keep in mind that the mounts are not 100% bolted down yet. I need to get my trans from my buddy so I can get that in place before locking everything in place (just to take it all back out again). Once I have put the trans in then I can check a few things, and it can all come back out. Engine bay is going to get cleaned up, and the motor will get some TLC as well. I am still planning on trying to get it running and driving this year, but we will see if it happens. I am not one to let things be "good enough" so I may end up spending a bunch of money and time on the motor even though it will remain a stock bottom end.

Anyway I am really happy with the fitment, and how much space I have! This seems to be more room than I remember in an F-body (on the sides) even with a tubular K-Member. Should be able to get a big single in there no problem with a 4" down pipe to run out back. I am really glad I went LS!



Well time for a small update on the thread that nobody follows :) I got the trans, and a converter from my buddy a while back. Turns out the trans was shot, and needs a rebuild. That pretty much killed my plans for just getting it running this year. The good news is that I will be able to use it as a core to verify the trans mount, and hold everything in place so I can do all the fab work and wiring. I need to get un-lazy and move the car over in the garage so I can get the trans in one of these days. Its been hot as balls, and until I got my turbo there hasn't been much of a reason to bother getting it done. That excuse is out the window now though, since this came in last week

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Its nothing special, just a Precision LS 7675, which is a cast wheel journal bearing 76mm. It should be able to max out the 5.3 though, so it will do for now. This weekend (it was hot as balls) I went out to the garage for a bit to try and get some idea where I was going to place the turbo so I can start getting an idea for a materials list. First up I got the radiator sitting in place (close enough)
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These were the most obvious positions (turbo would need to be clocked differently for most) that I snapped some pics of not in any particular order.

Inside forward facing 45
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TA style
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Inside forward facing
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Outside forward facing
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That is really about all I got right now. I guess I also got the LS6 intake since my last update. That is still sitting on the truck steam ports which is why it isn't flat. I also got a set of non-EGR truck manifolds to use as the base of the turbo kit.

So right now I need to get everything mounted temporarily. That includes the trans, front accessories, exhaust manifolds, intake manifold, etc. Then I can lock down the turbo placement 100% and order material to start work. I also need to delete the ABS so I can mount the ECU over there and get started on the wiring. Well that's all for now, thanks for following along the journey of me seeing how dirty I can get my car.



Time for a small update, just because why not :)

I needed to get the trans in so I could check the fitment of the mount, as well as get everything locked into position for fabricating. Doing a trans by yourself is no fun, worse when you don't have a lift, and worse yet when you have to do some modifications for it to even fit. I ended up grabbing a trans jack from Harbor Freight to make my life a million times easier.
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The only downside to it is that it is quite a bit taller than having the trans on my regular jack, but other than that it was SO MUCH BETTER. I could slowly move it into position and make small changes to angle and overall position with ease. Not to mention how nice it is to have the trans stable as you are moving around to get a good look at everything. It turns out it only needed a little massaging to get it bolted into place. Again, that is without a shield on it (or a bell) but I was glad I didn't have to spend hours hammering overhead.

Ignore the mess, the garage is in process of getting a lot of work as well.

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Next up I wanted to see what I was working with on the exhaust manifolds.
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Driver side is actually hitting the frame, but that is fine since I always planned on v-banding them anyway.
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Plenty of space on the passenger side
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Next up was trying to get an idea of what to do for accessories. There are about a million options out there these days. I started by trying to place the stock truck pieces just to get some idea.
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Clearly those weren't going to work, but it was worth a shot. I have since figured out what I am going to do, but I will post more about that when I get all the parts. After that I reassembled the main fuse box under the hood. I need to patch where I cut for the procharger bracket, but the car is going to be outside for a bit while we finish the garage so I wanted to close off the fuses and wiring.
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That was about it. Got the car back on the ground and pushed back out of the way for now.
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Not really a crazy update, but progress none the less. While we are finishing the garage I will get the rest of the parts needed for the accessory drive setup. Once that is all in place I can start on fab work (FINALLY!), so hopefully the garage wont take too long. That's all I got for now, thanks for following along!



Nothing exciting, but parts have been coming in lately. I had to figure out and order up all of the front accessory drive components. Luckily there are a LOT of options for that kind of stuff these days. I ended up with a set of ICT billet brackets that will use a mix of F-body and Truck pieces.

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While I am at it, I got all new everything else too since most of it required f-body pieces anyway.

New tensioner
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New power steering pump pulley
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I have a new water pump, but no pic of it. The new power steering pump will be here early next week as well. I haven't ordered an alternator yet, but I will later when I get a crank pulley.

Next up is some of the fabrication pieces for the turbo kit. I have only ordered the parts and pieces for the hot side so far.

All stainless steel T4 flange, four 2.5" 90's for the crossover, and a 4" 90 for the start of the down pipe
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The stainless steel adapter from the weird 3-5/8" outlet of the turbo to 4" tubing.
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I am still waiting on the 2.5" stainless v-band assemblies and the stainless O2 bung. I will also run another section of stainless on the downpipe, then a bellows, then adapt to aluminum for the rest of the exhaust. I probably wont start on that until after I do the cold side piping, which I will hopefully be able to start directly after the hot side fabrication is done. My garage is currently being finished, so I wont be able to start work for a couple weeks still, but its great to see parts coming in! That's all I got for now, thanks for following along.


Here are the 2.5" stainless steel v-band assemblies and the stainless steel O2 bung.
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They are very nice with indexed flanges built in
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Quick release clamps, another nice touch!
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GM reman power steering pump came the other day as well
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I was a bit surprised to see that the pump did not come with the pulley bolt, or the reservoir cap. Not a big deal, just slightly annoying. That is all I have for now. The garage is taking longer than expected, but I have also been working on the wife's car anyway. Sometime next week I will probably stock up on welding supplies so I can be ready to go. I should have enough to get started, but I know I will need some soon.




On to a bit of news, my garage is 90% done!! Paint went on last night, so now I can trim it this weekend and move everything back. Here are a couple quick pics.

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For reference, here is a pic of the garage when we did our inspection (before we bought the house)
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It had a single light bulb, and the opener was plugged into an outlet next to the switch with an extension cord duct taped to the drywall.

Here is a shot after we had added the sub panel, lights, and pulled down the drywall. I then insulated everything, and put up new 5/8" drywall.
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I know not car related, but it has been a massive project that has delayed the car so I figured I would throw it in there now that I can see light at the end of that tunnel. Next update will be all car!



Well nothing too exciting to report still. I have been busy as hell finishing the garage, and getting our house ready for a party this weekend. I did however order up a bunch more material and pieces. I should have everything to build the intercooler piping except the intercooler (which is on backorder). I have all of the material to build my exhaust, but will probably need a couple v-bands so I can section it. Anyway, here are a couple pics.

Half stainless, half aluminum 4" V-band. I have two stainless steel 90's to come out of the turbo and get me to about the firewall, then it will be aluminum from there to the bumper. The other three pieces are 3" aluminum clamshell clamps for the intercooler piping.
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Detail of the 4" v-band
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And one of the clamshell clamps pulled apart.
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I also got two boxes of piping as well. Those have a single stainless steel 4" 90, ten 3" aluminum 90's, six 4" aluminum 90's, two 4" aluminum 45's, two 2' long aluminum straight sections, a 3" silicone coupler, and a 3" to 3.5" silicone adapter with T-Bolt clamps. I am really hoping to start fabrication next weekend now that I should be done with all of these other projects. My pile of parts/material is starting to take up too much space!




Finally time for a bit of an update! After busting our asses on Friday night, the garage is now 99% done. All that really means for non OCD people is that I have more than 2 outlets (a LOT more) and don't need to drag extension cords all over! Let me back up a second, I needed to get the steering rack out of the car since it was wore out and I got a replacement for it. I also wanted to take the motor out to make taking the rack out easier, and so I could do some things with it on the stand. Thursday night I got under the car and pulled the trans.

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Pretty easy to do with nothing really connected at all. Friday the car and the bike went outside while my buddy and I did the massive amount of electrical work in the garage. Saturday got mostly eaten up cleaning the garage from the previous nights thrashing. In the evening I got the car pulled back into the garage and was able to get back to work on it.

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I let the snow melt off and dry up a bit before getting to work pulling the motor. Not terribly hard (again, nothing to disconnect or move), but kind of a pain in the ass since I have to come at it from the side.
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So one of the first things I wanted to try, was see about fitting AC. I don't think I would run it this year, but if I could build with it in mind it would make things easy down the road. I grabbed a bracket and a junk compressor from a buddy so I could mock it up. He also had this manifold laying around, so I took that as well.
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It is clearly a tight fit, but I think I could make it work. It pretty much kills running a 4" downpipe on the passenger side though, so I grabbed a piece of tubing to see what it looked like on the driver side.
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Again, very tight but I should be able to make that work if I need to. I still haven't decided if I am going to mess with it or not, but its good to know about options. Next up was getting the front accessory drive all installed.

All laid out on the bench (minus the water pump since I forgot where I put it!)
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Unfortunately I have the wrong tensioner, and I clearly still need parts (balancer, thermostat housing, alternator, etc.) but I can move forward with fabrication for now. Once that was done I pulled out the old rack.
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Then I got the new poly bushing installed in the new rack
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Then got it put in for now.
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I am going to change the "EVO component", intermediate shaft, and outer tierods but its in the car so I can fabricate around it for now and keep it out of my way.

Then I got busy organizing all of my material so I could clear the space under my bench.

Pile of tubing!
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Ahhhh thats better
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At that point I was going to call it a night, but I decided to dive in and try and get something done. So I busted out the big boy grinder
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Then I hacked off the end of the driver side manifold
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Unfortunately, that was where I had to end it. Its been so long since I have welded, the batteries in the hood were dead! I am going to stop and get some on my way home today, and I am also waiting on some welding supplies. It was great to FINALLY be working on the car again! Like I said I am still unsure on the whole AC deal, but I think for now I am going to cut up that manifold and see whats up. I will also be putting the motor back in the car as soon as I get my new steering parts (that is a whole story on its own). Thats all I have for now, thanks as always for following along!




WHEW, that was a lot of info! I ended up having to pull the post from a site I had already done this same thing on. So I again apologize if it doesn't make a ton of sense since it was a catch up on a catch up. Going forward this will get updated in real time though. I have some tools and supplies coming this Friday, so hopefully I can get a good jump on some of the fab work. I guess we will see how it goes. Look for an update later in the weekend, or Monday. Hope you guys enjoy the build, I look forward to hearing from you guys.


Thanks,
Sean

Broke EF

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Dec 8, 2017
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Here is the Home Theater build thread that was way longer than I expected.

https://www.thechicagogarage.com/forum/off-topic/166409-broke-ef-home-theater-build.html

Back to car stuff, I got a bunch of welding supplies today! Tomorrow I should be getting a new saw, and I think a couple other things for the build. I am really hoping I can get to some fabrication tomorrow. Today was spent cleaning up the yard and doing crap like that. Then I went by my buddies house to help him with some wiring, so no SC work today. The wife mentioned something about possibly doing the Chirstmas lights but that should only take about an hour if I get stuck doing them.

Anway, I am also going to bring my camera out to the garage. Putting this thread up made me realize how lazy I have gotten with taking pics of the car. So going forward the quality of the pics should be better as well. OK its time to go to bed.


Sean
 

Broke EF

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Dec 8, 2017
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Well guys, I know I said I was going to ease up on the cell phone pics but not just yet. I did take my camera out to the garage, and did take pics with it even. However this laptop doesn't have photoshop on it which means I cant work with the RAW format. I tried a work around, and it didn't work so you guys will have to suffer another update without them.

What a weekend! Friday was all yard work and Saturday was supposed to be all car. While it mostly was, I had to help the wife with some Christmas decorations a few times. Before we get into Saturday, lets go back a bit in the week when I got some welding materials!

It has been a few years since I have welded (something that is sure to be obvious going forward) so I needed to stock up on pretty much everything. I ordered up a bunch of filler rod, some tungsten, and a fancy new gas lens cup.
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That is a #16 GLS Fab gas lens. I have never used anything like it before, but wanted to give it a shot. I also picked up a tungsten grinder from eastwood to help get a nice grind on my electrodes.

So Saturday morning I went out in the garage and was messing around with stuff when I knocked the TIG torch off of my bench!!! Luckily the gas lens survived with no problem. The brand new tungsten didn't do so well, but that isn't a big deal since I have a few of them. I go to take it out, and it all comes out fine, sharpen up a new one and when I went to put it back together it was a no go. Long story short the collett wouldn't go into the back cap pretty much at all. I tried some others I had for different size tungsten and no dice. Turns out that every single welding supply place was closed until Monday!!!

After calling a dozen places to be sure they were not open, I thought of McMaster Carr, and sure enough they had them in stock. I ordered up a new back cap and some colletts and headed to Elmhurst to pick them up. I have ordered from them plenty of times, but never went there or even noticed where it was. It took me FOREVER to find where the will call window was. I even called and was still lost after that. Anyway, parts in hand I went back home and found that none of the colletts fit the new back cap at all. I was able to make something happen with the old cap and a new collett, but the day was off to a rough start.

When I got home, my new saw was waiting for me though!
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After I figured out that I could make up at least 1 TIG torch (in case I had to run out again before they closed) I got to work assembling the new band saw.
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First test cut
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It took longer to assemble than I expected, but so far it works great. I should probably dial it in a bit more, but I wanted to get to work!

Started with the most basic thing ever, tacking the V-band flange onto the driver side manifold.
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I then started trying to get some basic idea for how to get it pointing in a better direction.
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After that was good enough to be able to go back in the car, I went over to the passenger side to stare at the AC for a bit again. I cut the flange off of whatever manifold that was and tried to see how I could get around the compressor.
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Not much to look at I know. Next I needed to get the engine and trans back in the car so I could place the turbo. This is no easy task by myself, and made a little more difficult having to get the car so high up for the trans to go underneath on the trans jack. Nothing a chain and a cherry picker cant fix.
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I also cut the ears off the trans to make my life a lot easier getting the lower bolts in. So I got the car up, got the trans under it, lowered the car back down and picked the motor. That was an interesting dance of bringing the cherry picker in from the side(ish), holding my hood up higher, and maneuvering the motor around everything in the bay. It was mostly successful, but I did break a clip for the fuel lines.

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After that feat, I got the trans bolted to the motor, and tried to get the mounts fully set into place. As it sits right now, only 3 of the 4 motor mount bolts are in their homes. I tried for a while to muscle the motor around to line that last one up but so far its a no go.

I figured it was close enough to start looking at things. Right away I pretty much decided that the AC was not gonna be worth the hassle. I don't think I would be able to get a 4" downpipe through the bay with it in place for starters. I ended up pulling it all off, and went back to the truck manifold on that side. After that I threw the radiator back in to see whats what.
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That did not look good.... I grabbed the turbo, and
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No dice. That is resting on the water pump and the fan. Just for shits I tried seeing how it worked on an angle behind the passenger headlight
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I could probably make that work ,but its not my first choice. By this time it was pretty late on Saturday, and I had been up since pretty early, so I called it a night.

Now I am trying to decide how I want to go forward. For starters the front accessory drive I have is utilizing the truck spacing. That moves everything out about 1/2". That is not helping, but I also don't think that moving it back in alone will give me the room I need. Remember this car will be seeing street miles so I need to keep things like the fans cool as well. I can start chopping out the radiator supports which is something I am not against doing at all, but that means a new radiator and fans. Oh well, I will figure something out soon. It would have been nice if it fit like I planned, but that's life.

Sorry for the more wordy post today. Thanks for following along!


Sean
 

Broke EF

TCG Elite Member
Dec 8, 2017
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F body front end drive or something more compact?

Also would the AC work if it was AC on top alt on bottom? id think there would be more roo. with the AC up top and you can get smaller Alt housings too.

Dunno but this is a badass build and reaply.cool to see things besides mail order catalog builds all the time!

F-body, or F-body style is what I will probably go with. When I got the kit I got it was because it clears things well, and used parts I already had. Me being OCD, I bought all new shit anyway so it really defeated the purpose of getting a truck based setup. I have already been talking to Bob at AEI-CNC, who I honestly should have talked to from the start. I think him and I will come up with something to get me straightened out.

As for the AC, high mount would work a lot easier. I got the stock pieces just to see how it would (or wouldn't) work. I knew that they fit with this setup so I wanted to see what was what. I figured if I could, I would build the kit to fit around it that way I could add AC later down the road.

It sure would be nice to be able to order up parts from wherever and just bolt it all together :) In the end I modify everything anyway though, so this just skips the middle man.


Sean
 

Broke EF

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Dec 8, 2017
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Last night I was out in the garage for a bit trying to figure out a game plan for the SC. As you saw in the last post my plans for the turbo placement didn't really work out well. So I spent some time experimenting with different locations and clocking etc. For now I am thinking that this setup should work.
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(Bad pic)
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I still need to work out a few details before I commit to it. The down pipe will clear between the motor and the shock tower up high, but I don't think its a clear shot down in the back of the motor to get under the car. I need to look at that closer for sure. I also want to put the headlight back in to see what everything looks like with it installed. I am not 100% sold with this position, but it seems like it should work OK. Pretty much anything else would mean moving the radiator and the accessories. I am fine with doing both of those things, but we will see.


Sean
 

Broke EF

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Dec 8, 2017
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Thanks guys!

So I headed back out to the garage tonight just to check some things. First up, I was messing with the placement AGAIN. I tried moving the radiator forward, moving the water pump back (no spacers), and so on. I could probably make it work with some finagling, but then I checked the down pipe routing...
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While (like everything) I could make that work, I didn't like it. Not with the truck manifolds anyway, and if I was changing those I have almost every option open. After that I got back to looking at the down pipe down the back of the motor. I still need to remove the absolutely massive ABS module, but looking good.
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That pretty much cements the turbo placement behind the passenger headlight like I had yesterday. Now that I have a target, may as well start fabricating!!! First up, cut down some tubing.
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Then it was just a matter of marking it up and giving it a couple good tack welds. Sounds easy, should be easy...was not easy. Part of it is that I have not welded in so long. Part of it was the helmet flashing me constantly. Part of it is probably also the new gas lens, and my inexperience with it. Long story short I was having a hell of time tacking it with the TIG so I got pissed and got out the MIG. Forgot to check that the regulator was actually letting gas out (it wasn't). Then when I got that figured out it ran out of wire. No joke, I did one tack went to the other side and there was nothing. I ended up doing the second tack with the TIG, but still struggled. Nobody cares about any of that, but I needed to vent :)

Anyway, because of all that BS I only got one tube tacked in.
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Not much to look at, but its going toward the turbo :D The sway bar is hanging there, so just ignore it. Looks like I need to order some straight tubing so I have less seams. I need to decide how I am going to clock the exhaust housing. That is going to dictate a few things for sure. Maybe I will look at that more later this week or this weekend.

That's all for now, thanks for following along!

Sean
 

Broke EF

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I can sympathize with the welding stuff. It can be a wicked pain in the ass. I have as of yet to TIG, but with the way MIG is making me feel right now I'm about to revert back to stick for some absurd reason.

It was certainly annoying. The biggest thing was the hood not darkening. I found out yesterday that I had one of the settings wrong, and that was most of the problem. I still ordered new lenses anyway since it could use it.

I have never stick welded, but I feel like its harder than MIG. What problems are you having?

Lol, the detail in this thread is very entertaining

Tig tip, pick up a spare torch and torch parts kit on eBay for like $12. That stuff always breaks at the wrong time

Gls cup is awesome. Love mine. Way better than the fupas I kept breaking. Let me know if you need any help/tips

Thanks!

I should do that. I used this welder for years, and made a few turbo kits of my buddies TA (the owner of the welder actually) and never had any issues. Never broke any of the parts, never had it not go together right, nothing. Something is still not right with it though. I had to use pliers to get the tungsten out the other day so I could sharpen it. I should look into what is wrong before I really dig in on this whole deal.

That is good to know since I was bouncing back and forth with this and the Fupa. What kind of stickout do you usually have? The paperwork I got with it said minimum 3/4", I have it about 1". It also said between 20-25 CFH of gas. I currently have it at 25 CFH, but almost wonder if its too much?


Sean
 

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Time for a Sunday evening update!

We will start back on Friday where I got a little bit done after work. I started by welding the v-bands to the manifolds 100%

This is the passenger manifold, which was a bit rougher than the driver side.
IMG_20181130_203604-X2.jpg


The welding went OK. I started with the GLS lens, and ended up swapping back to the old style nozzle part way though the driver side. I will get back to the lens when I start welding the tubing. Anyway, here is a pic of the passenger side welded up. Not my finest work, but oh well.
IMG_20181130_210448-X2.jpg


Hard to tell, but both are all done in this pic
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That was pretty much all I got done Friday night.

Saturday I didn't really get much done. I straightened up the garage a bit, then decided to get the turbo sitting down a bit more. So after running to Home Depot to get right size hole saw, I popped a hole in the car
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I think the only other thing I got done was cutting off the sway bar. The bolts on the end links striped out, so out came the angle grinder :)

Sunday I got back out to the garage for a few hours and had at it. I started by welding a tube to the passenger v-band.
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After staring at everything for a while I decided to just dive on in and cut up one of the 90's.
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The saw did awesome! I thought of using two 90's so I could keep the tubing lower across the engine bay, but I don't really need that space for anything. Also cutting one 90 meant I still have one left for later if I need it.

After I got it cut, I tacked up one side to the driver tubing, along with a straight section I had cut off something else earlier.
IMG_20181202_134732-X2.jpg


Here is a shot showing the other 45 sitting on top to give you an idea of how it will be routed.
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The general idea is that the T4 flange will be adapted to 3" tubing. I am going to do a 45 degree 3" tubing cut down as much as possible and the two sides will merge into that.

Since I don't have the flange yet, and need to order up the 3" tubing as well as some other things, that was about all I could really get done on the crossover. So I decided to start messing with the down pipe. I started by cutting a 4" 90 in half since I needed a 45. Unfortunately the saw couldn't handle doing the 4" the same way I did the 2.5" No big deal, just changed to to vertical and did it by hand. Not as clean that way, but it worked. Then I chopped off the straight section from one of the pieces.
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Then I marked and cut that piece down, and then tacked everything together.
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That's all for this week. I need to pull out that monstrous ABS deal. I also need to get more material on its way so I can have everything for next weekend. Its been kind of slow going, but at least progress is being made.

That's all I got for this week, thanks as always for following along!

Sean
 

Broke EF

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Solid progress

Well at least one of us thinks so :) It wasn't bad, but its slow going working alone. Add to that we are really busy every weekend for all of December, I don't get as much time to work in the garage as I would like.

Good job thinking things through before welding, Sean.

Great build thread. Detailed, explained and interesting. :toast:

Thanks! You have to think it though as much as possible. There is a lot going on under the hood of a turbo car :)

Thanks for the kind words! I always think its boring, so its nice to hear people like it.


Sean
 

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Fantastic work. Here I am procrastinating about welding up a custom exhaust for my Corvair. You’ve inspired me. Time to get out on the garage and work!

Appreciate the updates!

HELL YEAH!!! I love hearing this kind of stuff! Be sure to post up some pics!

I love this thread.

That said, all those leaves just triggered the shit out of my OCD. :rofl:

I know, I almost cleaned them up today. I will try and get them taken care of before the next update.

Sean
 

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Small update time! Last weekend I was pretty busy, and I was still waiting on parts. I was also hung up on needing to get the turbo mounted before I could really do anything else. I ended up ordering a Maven oil drain mount after talking with them a bit. It is a little expensive, but it is SUPER nice, came packaged very well, and the customer support has been fantastic! Super high quality part for sure, and also probably the best way to support the turbo.
IMG_20181208_164415-X3.jpg


I have some molly tubing coming for that today, and tomorrow morning I am going to grab my buddies bender. Hopefully I can make something work, and look decent with that.

Yesterday I finally got my new 3" to T4 flange! I didn't grab any pics of it before I promptly cut and tacked on the 3" 45 bend.
IMG_20181213_202153-X3.jpg


That's all for now. Not much, but those two pieces were holding me up. I have to get some hardware for both of them so everything can get bolted together. Then I can keep running the tubing up to the turbo. I also ordered up an intercooler, so hopefully that show up soonish and I can start on cold side piping. I am still undecided on doing any kind of flex in the crossover. I probably should but not sure what kind. Anyway, I should have some more done Sunday so stay tuned.


Sean
 

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Nice. Is the hot side stainless or mild? Are you going to mount the turbo support to the engine block?

Thanks!

Crossover is 2.5" stainless, Downpipe is 4" stainless, Intercooler piping is 3" aluminum and exhaust is 4" aluminum.

The turbo will be mounted to the frame of the car. I got a tubing bender over the weekend for that, but the radius on the die is probably too large for what I was originally thinking. I have a couple ideas, but need to stare at it and think about it for a bit before I finalize a design.

I did work on the car yesterday, but it was a lot of this
:fu:
So no update for you guys today. I might make another attempt on it during the week, but who knows. The intercooloer should be here Wednesday, so that will be exciting.


Sean
 

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I don't remember how the motor is mounted to the car, but be careful rigid mounting the turbo to the chassis if the motor can flex at all. I would consider supporting the turbo from the block without motor plates

Motor mounts are solid as well. I have been trying to decide what I want to do, and how I would want to do it for a few weeks now. I think the way I will end up doing the turbo support will mainly just take up the weight but still allow some movement. I probably should just chop off the front end and tube it all, but for whatever reason I am trying not to do that. It would make my life a whole hell of a lot easier though!

Sean
 

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Got a small, boring update for you guys. My intercooloer showed up yesterday! I went with a Treadstone 1245 air to air. Nothing too fancy, but should get the job done.

IMG_2200-X3.jpg


Should end up somewhere in this ballpark
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I think I have come up with good solutions to all of the little issues I have been running into lately. Unfortunately with Christmas coming I am super busy, and don't really know when I will be able to get back out to the garage. I may have a little time today after work, so maybe I can get some some tacked up and show some progress.

Anyway, I am happy to have another piece of the puzzle in my hands. I need to brush up on my aluminum welding before I start trying to weld up the clam shell clamps. I always liked welding aluminum, so hopefully it comes back pretty easy. Thats all for now!


Sean
 

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Its a miracle, I was able to get into the garage for a bit last night! So my main issue I have been having is tacking the more complicated passenger side tubing. I just cant hold it and get a tack reliably with the TIG one handed. Since I have to hold it with my other hand I cant add filler either, so its been very frustrating. I decided to set up the MIG for stainless so I can more easily tack things into place.

The other day I stopped at Airgas to see how much a tank of tri-mix was, and to grab some stainless wire. Turns out that tri-mix is SUPER expensive, way too cost prohibitive to justify for what I needed. So I grabbed the wire, and tried using 100% argon from the TIG. It welds kind of weird, almost like it doesn't have good gas coverage. I tried running the regulator up and down and it didn't seem to change at all so I just ran with it.

Once I had that "figured out" I grabbed the offending pieces and got them cleaned up. Now that brings up problem #2, which I have not solved yet, which is the tubing being out of round. Its pretty common especially when you are cutting a bend. This was the joining of a 90 and a 180 that had both been cut down so basically they were both oval and in opposite planes. Got the first tack on and then tried to get them closed up on the opposite side, which made it all go out of alignment (not that I realized at the time). Anyway I got it tacked up and put it on the car.

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As you can see its off center from the driver side tube. It also turns out that I probably need more angle on that tube for it to merge together. So its not really the end of the world that they didn't align down the center. Overall I am kind of "meh" on the setup if I am honest. I think I will like it better when they are cut down to actually merge together, but last night I was really pretty unhappy with it. Not really sure what else I could do that I would like better though.

So that is where it will probably stay until after Christmas. If I get any time to get out to the garage it will pretty much only be to stare at it and contemplate my options. The SS MIG tack idea works-ish, but I think I will use it as a last resort rather than a first option. I also will probably bite the bullet and buy a tubing swage kit so I can re-round the ends of everything. That will really come into play on the aluminum. Anyway, stay tuned for what may end up being a totally different setup in the next update :)

Sean
 

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