Drag to reposition cover

BUILD Broke EF turbo LS SC400 Build


v6buicks

TCG Elite Member
Joined
Oct 22, 2018
Posts
3,309
Reaction score
3,520
Wow! I haven't been notified about updates for this one in a while. I've missed a lot. Looking good!
 

Pro Stock John

That LS1Tech guy
Joined
Sep 20, 2011
Posts
2,243
Reaction score
1,394
Location
The 60618
You have to run the proper thermostat in a mixing cooling system used on 98% of newer engines.

In the old days the thermostat would open all the hot water would leave the block and a whole bunch of cold water would rush in and caused expansion problems that would lead to scrubbing of head gaskets and Gasket failure.
Modern engines use thermal mixing system that mixes the cold water from the radiator with the hot water in the block leading into the water pump Inlet so that it is homogenized and then put into the block to prevent thermal shock issues.
Well I got schooled a bit on thermostats because of my overheating issues. My guys prefer a stat, but the part I posted a pic of works in my car too. I don't have a heater core in my car so there is no point to recirculate the fluid through the bypass. Seems to me when the stat is closed in a heater core car, the fluid circs to the heater core until the stat opens. But that coolant is at ambient temp for a little while, what maybe 10 minutes? My stat-less setup uses essentially a gutted stat with the bypass blocked off, so maybe for the first 10 min the coolant is somewhat cold.
 
OP
B

Broke EF

Addict
Joined
Dec 8, 2017
Posts
968
Reaction score
831
Location
The sticks
Thanks for the kind words, and the advice guys. I worked pretty late last night getting the car together with a headlight and fender. I took it out after to see how it did on temp, and its much better for sure. Driving down 90 going about 70-75 it very slowly climbed to about 199 before I got off. I wanted to keep going to see if it would stabilize, but it was late and I didnt want to go that far. I also thought about running the highway back the way I came, but didnt. So anyway once I was off it was holding in the mid/upper 190's. Thats a little hotter than I would like, but I can live with it. I also made a hit and I saw the temp get to 201, but it quickly came back down.

That hit was also :oops::oops::oops: I have done some beating on it, but mostly rolling into it. This was my first real hit and I was happy :D I ended up not taking it to work/the track today, but I am planning on driving it to work tomorrow. I need to get to the track soon. I don't want to speculate, but if it hooks it should do pretty good.

The only other issue I am still stumped on is a power steering leak. It kind of comes and goes which is weird. When I made the hit last night it sprayed some out of the cap, but it was still full when I got home. But at the last Sunday cars and coffee I was at, it was pissing all over from somewhere near the rack. I topped it off after that and it has remained full with only a drop or two on the garage floor. I am curious if I still had some air in the system? I ordered new power steering (specific) fittings and hose. That should hold the pressure better, just in case.

Thats all for now, stay tuned for some time slips :D
 

Mook

Mr. Manager
Staff member
Admin
Joined
May 23, 2007
Posts
184,083
Reaction score
28,123
Location
Elgin
Thanks for the kind words, and the advice guys. I worked pretty late last night getting the car together with a headlight and fender. I took it out after to see how it did on temp, and its much better for sure. Driving down 90 going about 70-75 it very slowly climbed to about 199 before I got off. I wanted to keep going to see if it would stabilize, but it was late and I didnt want to go that far. I also thought about running the highway back the way I came, but didnt. So anyway once I was off it was holding in the mid/upper 190's. Thats a little hotter than I would like, but I can live with it. I also made a hit and I saw the temp get to 201, but it quickly came back down.

That hit was also :oops::oops::oops: I have done some beating on it, but mostly rolling into it. This was my first real hit and I was happy :D I ended up not taking it to work/the track today, but I am planning on driving it to work tomorrow. I need to get to the track soon. I don't want to speculate, but if it hooks it should do pretty good.

The only other issue I am still stumped on is a power steering leak. It kind of comes and goes which is weird. When I made the hit last night it sprayed some out of the cap, but it was still full when I got home. But at the last Sunday cars and coffee I was at, it was pissing all over from somewhere near the rack. I topped it off after that and it has remained full with only a drop or two on the garage floor. I am curious if I still had some air in the system? I ordered new power steering (specific) fittings and hose. That should hold the pressure better, just in case.

Thats all for now, stay tuned for some time slips :D
Track day??
 

Jon01

TCG Elite Member
Joined
Feb 8, 2012
Posts
1,479
Reaction score
2,260
If it heated up a little when you made a pull (normal) then cooled back down it sounds like your cooling system is capable of controlling things.
200 wouldn't bother me as long as the system is in control.
FWIW, my C10 gets up around 210 when I take it to Mexico but cools right back down to 190 once we have returned to the US.
A monster 4 core with 2 Saturn V sized fans helped but it still warms up a little. I'm running a hood too...
 
OP
B

Broke EF

Addict
Joined
Dec 8, 2017
Posts
968
Reaction score
831
Location
The sticks
Niiice. She a little happier?
Yes, although I didnt do anything yet. I checked the raditaor in the morning and it was pretty low. I am still going to do all the stuff we talked about the other day.

If it heated up a little when you made a pull (normal) then cooled back down it sounds like your cooling system is capable of controlling things.
200 wouldn't bother me as long as the system is in control.
FWIW, my C10 gets up around 210 when I take it to Mexico but cools right back down to 190 once we have returned to the US.
A monster 4 core with 2 Saturn V sized fans helped but it still warms up a little. I'm running a hood too...
I think everything is capable, just need to tweak a couple things and it should be good.
 
OP
B

Broke EF

Addict
Joined
Dec 8, 2017
Posts
968
Reaction score
831
Location
The sticks
Weird. I'm a fan of a recovery tank rather than overflow.
I am going to build a recovery tank up by the radiator, and use the Motion overflow out back for incase things get extra hairy.

Thats the one!

So today I tried to take it to the track and see what she could do. I threw on the motion catch can just to be track legal, and headed out. GLD is about an hour and 20 minutes from my house, and all back roads. It was a really nice drive, and the temps were doing OK. Not great, but managable for now anyway. However, my power steering started acting up again. I pulled over about 30 minutes in and had to fill the powersteering. Then I stopped again about 20 minutes away because it was smoking bad. I cant find where its leaking, but its somewhere around the rack. It doesnt seem to be a fitting, or an adapter, which would mean the rack itself. Before anyone asks, the rack is also new along with all the lines, fittings, adapters, pump, etc. As much as it sucks, I think Iam just going to give up on the powersteering. That means 0rdering up a manual rack, and a powersteering pump idler adapter. Ill need to get another belt, and ANOTHER alignment.

I am not 100% sure on that yet, but I am leaning heavily toward that. The reason I did the powersteering in the first place is because I already had the new rack, and its eaiser to get brackets for alternator, powersteering, and waterpump. Ill let you guys know what I do. I am gonna do something soon though so I can get some runs in this year.
 
OP
B

Broke EF

Addict
Joined
Dec 8, 2017
Posts
968
Reaction score
831
Location
The sticks
It finally happened, I made it to the track!! Ill do a follow up post later about the cooling and power steering, for now lets talk track! I gave the car a once over this morning, and the wife and I hopped in to hit the road. Byron is about a 45-60 minute drive from my house. It made the drive with no issues just a lot of looks :D Got the car teched in with no issues, and then just let it cool off a bit before getting in the lanes.



Didn't even check the tire pressure, nothing.




So you can see in the video it was pushing through the brakes which explains the terrible 60'. I got off it and was on the brakes way early as well. I am not sure, but possibly before the strpe even. I'm upset I got out of it because it would have been a 10 more than likely.

So I let the car cool off, again did nothing to it, and then went around again.




This time the car was a nice 130 degrees when I fired it up and I was only 3 cars back. I was pumped that the car was cool because I felt it was a bit warm the first go around. Well for whatever reason they ran a bunch of other cars that just came into the lane so I just sat there getting hotter and hotter. The car was over 190 before I even atempted my burnout. Car was way down on power since it was that hot when I made the hit.

I really wanted to see a 10 today, but I kind of figured I would have the same issue of the car getting hot before my pass again. Plus I had some other stuff to take care of, so we packed it up and headed home. Car made it home with no issues at all! It was running hotter on the way home, but it was reasonable. All in all it was a good first outing. I learned a good bit about the car, and it made it with no breakage.

I already have plans whirling around to make it better. I may just show up at another track this week to see if I can do better. I need to check over some stuff, make sure I can turn it up more, and I need to get the trans brake hooked up. I cant be out here with 1.6 and 1.7 60 foot times!!!
 

Mook

Mr. Manager
Staff member
Admin
Joined
May 23, 2007
Posts
184,083
Reaction score
28,123
Location
Elgin
Dude, you should be fucking excited and proud that the car drove there, made passes and drove home. That's awesome.
 

IDAFC21

WOW.
Staff member
Moderator
Donating Member
Joined
May 23, 2007
Posts
46,340
Reaction score
4,787
Location
Avondale, AZ
Maybe not the results you were hoping for, but great that it was out there! Thats awesome. And w/ no hood or bumper, I can't imagine it's the most aerodynamic thing out there at the moment.

Also looks like you were driving into a pretty sturdy headwind.

(just say yes) :LOL:
 
OP
B

Broke EF

Addict
Joined
Dec 8, 2017
Posts
968
Reaction score
831
Location
The sticks
Yeah, the downside of the no hood or bumper is half the track staff think its a POS. The tech guys complimented me on it, but the guy in the lanes told me if anything happens to pull over. The guy at the line was looking it over like a hawk and then they said I was leaking something. It wasnt, everything was dry. Bunch of haters :p

The wind was nuts today, and it was basically straight on too. I was happy to drive it there make some passes and drive home. With how much I have done to the car that is a big win. It will be faster next time :D
 
OP
B

Broke EF

Addict
Joined
Dec 8, 2017
Posts
968
Reaction score
831
Location
The sticks
Thanks guys!

So lets back up and explain whats happened with the car since the last update. So the long story short is that the temps are still not 100% fixed., but the steering is. So lets talk cooling first. I dont feel like looking back, so I will just toch on whats happened the last few weeks.

Everyone was all like "you need a thermostat" and other things that go against the laws of thermodynamics. So I bought one. That was when I found out that my housing adapter isnt for an LS thermostat. I ended up trying a SBC thermostat, which didnt work. So then I bought the Motion thermostat housing, installed the stat and it was better-ish. That proved out the problem with the bypass. I then got one of those thermostat delete deals from Johns buddy



So I swapped back to the original adapter, installed the thermostat delete, capped the heater lines, and vacuum filled the system after pressure testing the system and the cap.


It was also about this time I decided I wanted to change the overflow. I bought a motion raceworks one, but I didnt really like that its vented. I wanted something to feed from the bottom so that water could go in and out of it as it heats and cools. Then I wanted to use the motion can in the back of the car as an actual overflow if anything gets crazy. I looked for something that did what I wanted, and said fuck it and made my own.

Bought some bungs and a cheap cap.


Took some 3" aluminum tubing and cut off a straight piece, and made some round caps from some sheet I had. I just used a hole saw since I needed a larger hole in both ends it worked well.


Welded the caps on


Then all the bungs and the cap


So its a 1/4" on the bottom center which is connected to the radiator, and on the top (left of pic) that will go to the back of the car into the overflow, then two 1/8" for a sight glass. The 1/4" bungs welded like shit, so its not the prettiest thing, but it works. I still need to make a mount for it as well.

Now that the cooling stuff was "done" it was time to focus on the steering. I debated "fixing" the power steering, and after finally finding someone with an LS swapped SC who actually drives it, it seemed like more work than it was worth. I had ordered up new line, and fittings before I made the call to change it. I would have needed a new pump, new rack, a restrictor, and a cooler to have it hopefully work. The sucky part about going to a manual rack is only one guy makes one that bolts in, and he is very proud of it. I bit the bullet and ordered it up, and it is a very nice unit!



Its a flaming river rack, which is not very expensive, but he machines the inner tie rods, the steering shaft stub, makes a steering shaft, and mounts.



I had a bit of a snag in that my motor mounts use the rack mounting bolts, but it wasnt too bad to install.


The easy part was suposed to be deleting the pump. I orderd up an ICT bracket that delets the stock f-body pump. I was hoping I could use the existing bracket to act as a spacer for it since I have a truck balancer. No dice on that. The bracket has countersunk holes where the new one bolts up


Quick call to my buddy, and he whipped up some new spacers for me. He actually was going to make them out of titanium, but was having a hard time machining the longer holes. Anyway, he got them sent over super quick, and it bolted up perfect. Then I tried to get a belt for it. I went to 4 parts stores, 10 belts, and a lot of frustration later I gave up. I found that they actually make a tensioner setup for my exact deal with no power steering, so I ordered that up! Of course it isnt that easy, they sent me the worng stuff and I had to order it again. I fianlly got the right part though.





First belt went right on that time! I like this set up better than the other tensioner too. I think I have it a bit tight though, I am getting a little bit of a squeak.

After all that I installed my first ever set of wheel spacers


Gives me WAY more angle before the passenger tire hits the hot side


I dont quite think I can get lock to lock still, but its very close now. I will be putting some welds on it at some point which will clear no problem, but this works for now.

And that prety much brings us all up to speed. I need to get unlazy tomorow and hook up the trans brake, and probably the boost controller. I also need to pull the plugs and look everything over. I am planning on going up to GLD Thursday to hopefully get some better runs in.
 

Intel

TCG Elite Member
Joined
Oct 28, 2009
Posts
5,492
Reaction score
1,154
Location
Palatine
some +20-25 offset wheels would work if you ever replace the stockers.

Great work!
 
OP
B

Broke EF

Addict
Joined
Dec 8, 2017
Posts
968
Reaction score
831
Location
The sticks
I checked the plugs, and found one was cracked. New plugs gapped and installed, and then fired up to make sure its good. I am ready to go as far as I can tell. I wish I had the time this week to get the trans brake, boost controller, and 2 step hooked up, but work has been nuts and I just didnt have the time.
 

Create an account or login to comment

You must be a member in order to leave a comment

Create account

Create an account on our community. It's easy!

Log in

Already have an account? Log in here.

Top Bottom