🔧 BUILD K swap miata

[AnimalMother316]

Cleaned up the excess harnesses and wiring a bit.

Adjusted tension on the rack to loosen up the steering a hair.

Just twiddling my thumbs waiting to hear back from my fab guy and the guy who said he'd sell me some straight 76mm ss pipe.

 

[AnimalMother316]

More cutting sits much better now. It was catching near where the intake mani meets the tb


Picked up more exhaust pipe last night. Shooting for Saturday to get it fabbed up.


Made a sand bag holder for an old pickup and now it shall be ramps for the Miata



After the exhaust gets done I'll swap out my winter table. Hopefully get an alignment the following week.


Gave it a quick wipe down too.

I'm so fucking pumped.

 

[AnimalMother316]

Got the summers on. Picking up the trailer in the morning and heading out to get that exhaust made finally.

 

[AnimalMother316]

About to head to crystal lake to get this exhaust welded up

 

[AnimalMother316]

And we're getting there

 

[AnimalMother316]

Almost got the muffler on

 

[AnimalMother316]

It looks fantastic

 

[AnimalMother316]

Drove it probably 30 minutes tonight. This thing is gonna be a fucking riot.

Alignment and a tune to go

 

[10sec]

You are going to have a lot of fucken fun lol. I get the attraction of a Miata and the challenge to use its momentum to be a fun car to track, but with that kind of power that shit is going to be fun ASF. Turbo Miata's with the same power are also fun but they overheat and break all the time. To make the same power and TQ reliably with a Kseries is the PERFECT match for the chassis IMO.

 

[AnimalMother316]

Idle still needs some work but it's not loud which is fine by me

 

[Mr_Roboto]

Silent but deadly.

 

[NOMIEZVR4]

lookin good. You planning on getting the OEM lip kit? they make such a huge difference. Ive had 3-4 NA miatas myself, everything from na to SC to turbo.

 

[AnimalMother316]

lookin good. You planning on getting the OEM lip kit? they make such a huge difference. Ive had 3-4 NA miatas myself, everything from na to SC to turbo.

Got too much money to spend on other stuff first. Never been a looks guy.

Adjusted idle. Gonna cold start it in a few hours and see if it likes it. Also realized I was running open loop which explains some of the stuff I was seeing.

 

[Turbocharged400sbc]

Keep an eye on your exhaust they tend to stress relieved and shift sometimes causing them to burn into the bumper. It's a good idea to just clamp the tip or use a couple of tack welds on the tip for when exhaust Settles its correctable.

I also highly suggest that unless you know your oxygen sensor is minty. I'd recommend a new one as the sensors get to 50,000 miles they do degrade and no longer transition 450mv at true stoichiometric. Oil and coolant contamination of the porcelin are also no good

 

[AnimalMother316]

Keep an eye on your exhaust they tend to stress relieved and shift sometimes causing them to burn into the bumper. It's a good idea to just clamp the tip or use a couple of tack welds on the tip for when exhaust Settles its correctable.

I also highly suggest that unless you know your oxygen sensor is minty. I'd recommend a new one as the sensors get to 50,000 miles they do degrade and no longer transition 450mv at true stoichiometric. Oil and coolant contamination of the porcelin are also no good

Waiting to see how the exhaust is after the new hangers get attached.

And the o2 sensor is new. It was running open loop through the tuner.

 

[AnimalMother316]

Okay adjusted idle and enabled closed loop. Night and day difference to me

 

[AnimalMother316]

Dropped the car off for the alignment.


Ordered a mix of poly and rubber hangers for the exhaust.

Also got some reinforcement plates for the diff. The right hand side tends to fail under extreme situations

 

[AnimalMother316]

Car is back from the alignment. Easier to steer and definitely less twitchy.

Plan for this weekend is to mix and match those exhaust hangers and slap on that diff plate.

I need to figure out who the hell is gonna tune it. I've only heard back from one guy out of three suggestions I've been given.

 

[Turbocharged400sbc]

I didn't really see anything that would affect your tune that much. You don't have aftermarket cams... the factory pcm should be able to handle everything within the usual plus or minus 16% fueling.

Wait until after you get a full wideband setup installed in it along with a cold start override switch. (So you can power it up/preheat wideband for cold start data logging)

Near as I can tell right now is you just get a Canned tune anyways... so unless that tuner has spent a bunch of hours on a car exactly the same as yours you're going to be paying money for very little "tuning"

If you're just looking to get rid of the codes/diag for the automatic transmission that's no longer there etcetera.... I can see that.... but that's about as much of a tune as brushing your teeth is a visit to the dentist....

Have you searched for terms like a swap bin file or stand-alone engine bin file? There's got to be some plug-and-play PCMS for that sort of thing out there.... being that it's a swap or Standalone setup may be part of the reason why they're not responding back to you since those types of projects can be extraordinary really tedious verifying that your customer did everything right

 

[AnimalMother316]

I didn't really see anything that would affect your tune that much. You don't have aftermarket cams... the factory pcm should be able to handle everything within the usual plus or minus 16% fueling.

Wait until after you get a full wideband setup installed in it along with a cold start override switch. (So you can power it up/preheat wideband for cold start data logging)

Near as I can tell right now is you just get a Canned tune anyways... so unless that tuner has spent a bunch of hours on a car exactly the same as yours you're going to be paying money for very little "tuning"

If you're just looking to get rid of the codes/diag for the automatic transmission that's no longer there etcetera.... I can see that.... but that's about as much of a tune as brushing your teeth is a visit to the dentist....

Have you searched for terms like a swap bin file or stand-alone engine bin file? There's got to be some plug-and-play PCMS for that sort of thing out there.... being that it's a swap or Standalone setup may be part of the reason why they're not responding back to you since those types of projects can be extraordinary really tedious verifying that your customer did everything right

It has a lot of things the stock car does not. A tune will make a world of difference. My friend with a k24z3 motor made 150hp on the base map then when tuned made 206.

My change may not be as drastic but there is major power left on the table.

I don't have any dtcs at the moment.

And the car has had a new wideband this whole time.

Hondata is one of the most popular tuning options and I have one of the most popular Honda motors. It's not a matter of finding a tuner. It's just picking one. They all have tons of great reviews.

Today, I swapped out the old rubber exhaust hangers. I also drove it to work and then made two pointless trips after work just to drive it some more. This car is going to be an absolute riot. I wound it out to 7k and vtec clearly engaged lmao.

 

[Turbocharged400sbc]

ah, i was thinking that you werent driving it because it needed a tune, not that your looking to wick it up.

 

[AnimalMother316]

Had an ugly hole from the old wideband that is still ugly but now made a nice opening for a switch.

Wired up the ac fan to be on a switch. With all the OEM Mazda ac shit gone the 2nd fan would literally never kick on. Now I got something for the autocross grid or heavy traffic.

 

[Mr_Roboto]

you need a 3d printed insert.

 

[AnimalMother316]

you need a 3d printed insert.

I think mine only has a 7in cube of space, but I have been looking for random stuff to make.

And I have only tried pla. Shouldn't I use something else like abs for materials that will see sunlight regularly?

 

[AnimalMother316]

Absolute shit angle and video, but I couldn't resist.

Snagged a quick pull on my way home from my midnight grocery run. Vtec kicked in hard after 5k.