NASA ST4 - U build thread - engine swapped

[gt5759]

Finally getting a little time to work on my own car again, after life deciding it was time for me to get pounded for a bit. A huge pile of parts has amassed over this hiatus and the engine pieces are at the machine shop getting done.

Started the ball rolling again by beginning to design the wing mounts. Still need to trim a bit of fat off them then I can use my new 3d scanner on the templates to finish the design in fusion much excite! These are just 6mm alumacore and the final piece will most likely be .250" 7075 AL. I was thinking about using carbon but it would be almost 1k for 2 stupid mounts vs 250.00.
Don't mind the hood in the pic, I need to finish trimming the bottom and install the aero latches.







Engine bay hasn't change much. Finished the coolant tank, breather tank and welded the v-bands on the headers but thats it.





Interior is going to take a little turn as I got my dash from HGK in, sadly no pic as I'm a dummy but you'll see it soon. I plan on moving the fluid reservoirs but the haltech, aim pdm and most electronics will be under the dash on a panel and the dash will be attached with quick turn fastners.



Thats it for now but I'm excited to get rolling again!

[redlined600]

Love those rear wing mounts!

[gt5759]

All the other cars are out of the shop so now I can devote all my time to my own!

New suspension pieces are getting hung and fitted. All the SPL goodies you can get other than the rear end links as I don't like SPl's links since they are not adjustable on vehicle so I went with RacerX on those. Hotchkiss front bar, stock 15mm rear bar. ARP studs all around and new SKF hubs.











Wing mounts were finalized, 3D scanned and we just need to convert the file to STL then send off to be cut. Very excited to get those back.

My goal is to have the car on track by oct 14th for the final race of the year and probably the last race ever at Heartland Park (my home track basically) as there was a big debacle over the taxes with the owner and state. Probably a lofty goal for me but I'm gonna try. Pretty much all parts are in hand other than hoses/tubing/ends for the plumbing. Scheduling dyno time and trying to shake down before the race weekend will be very tough, might end up being a shake down weekend and run in U class with a rough street tune

[gt5759]

Finished rough alignment and torqued everything suspension/brake wise along with installing the verus brake cooling kit yesterday. Everything went together as expected thankfully, though I do still need to set track width to be within the rules before proper alignment/setup.





Modified the inlet ducts for the hoses as they mount them on the backside of the bumper which makes for a semi loose fit but by mounting them on the front side and shaving down the outer edge of the tube it has a tight fit against the fog lamp bezel. Overall its a pretty good kit.





And yes, that is the direction stoptech says for rotation, plus they have stickers on them

Exhaust materials have arrived so I can get that knocked out, then get that and the various other engine parts like valve covers and intake manifold over to the cerakoter as that's going to take a couple weeks to get done.

[gt5759]

Much progress made over the past couple days, feels good to see things coming together!

Exhaust is 75% complete, I'm just waiting on the muffler and some various materials to finish it. I will also insulate the floor/tunnel before re-assembling, along with various other heat control items.







Oil cooler and remote thermostat/filter Housing.







New hood fitted, I will be enlarging the vents and doing a little more trimming but overall, it looks great!



Kinda crappy pic but the diff and trans coolers are mounted but I still need to finish ducting out the decklid for proper ventilation.

[blsfrs]

Looks awesome.

The exhaust looks a little close to the steering rack. Any plans for insulation there?

[gt5759]

Originally Posted by blsfrs

Looks awesome.

The exhaust looks a little close to the steering rack. Any plans for insulation there?

Yes. I plan on making shields with an air gap for the sway bar bushings, rack/intermediate shaft, driveshaft - since its carbon and fully insulating/wrapping the floor/tunnel. Just some 1/8" or 1/16" aluminum with DEI adhesive backed fiberglass mat shaped around things. Plus the whole exhaust will be cerakoted which helps a little bit as well.

Thanks!!

[gt5759]

Little test fit of the dash. I am quite impressed on the quality and the initial fit of this, starting to wish I picked the carbon one but it was about 3 times the amount and for an item that's only purpose is to look pretty I couldn't justify that. I might have this dipped or painted once everything is said and done though.








Will most likely move the brake reservoirs unless I can make it quickly removable by using quick turn fastners. I do plan on mounting the pdm, ecu and other various electronics under it. Figuring the abs unit will go behind the passenger seat and or on the rear of the tunnel before the firewall. Will need to move the park brake as well. One change creates more!

[RedReplicant]

You sent me down a rabbit hole with those bellows, I'd always figured they just for heat expansion. Very cool

[blsfrs]

Are you using a custom brake/ABS system?

[gt5759]

Originally Posted by RedReplicant

You sent me down a rabbit hole with those bellows, I'd always figured they just for heat expansion. Very cool

Love those bellows! If it helps, I source pretty much everything material wise from Vibrant.

[gt5759]

Originally Posted by blsfrs

Are you using a custom brake/ABS system?

Yes, MK60 teves with CSL programming. It's the limit of the ST/TT4 rules. If and when I decide to move up in classes or pursue other events, I can program it with the continental teves race program via RHT motorsports for a small fee.

I'm pretty excited for the ABS along with traction control via Haltech. I've driven cars with them installed but never owned one!

[RedReplicant]

Originally Posted by gt5759

Yes, MK60 teves with CSL programming. It's the limit of the ST/TT4 rules. If and when I decide to move up in classes or pursue other events, I can program it with the continental teves race program via RHT motorsports for a small fee.

I'm pretty excited for the ABS along with traction control via Haltech. I've driven cars with them installed but never owned one!

Have you already bought a unit yet?

If you have I can help you set CSL params, unless you already know what is up there. If you haven't then MK60E1 from a Euro E90 318D (845.3 unit, ebay search of 6789300 3789301) since:

* They are ST4 legal
* They don't have external pressure sensors to break and yeet you into another car or wall when they fail and you lose all brake pressure
* They can also be reflashed by the same dude Doug uses in the UK (though the difference is minimal at best)
* They cost like $45 shipped instead of whatever crackhead prices people want for an 813.3 or 817.3 now
* They use the same plug as the MK60E5 if NASA decides to make it legal or you move to 3

[gt5759]

Originally Posted by RedReplicant

Have you already bought a unit yet?

If you have I can help you set CSL params, unless you already know what is up there. If you haven't then MK60E1 from a Euro E90 318D (845.3 unit, ebay search of 6789300 3789301) since:

* They are ST4 legal
* They don't have external pressure sensors to break and yeet you into another car or wall when they fail and you lose all brake pressure
* They can also be reflashed by the same dude Doug uses in the UK (though the difference is minimal at best)
* They cost like $45 shipped instead of whatever crackhead prices people want for an 813.3 or 817.3 now
* They use the same plug as the MK60E5 if NASA decides to make it legal or you move to 3

All new to me so help is appreciated! I have no clue on the programming part as I haven't dived into that yet. I have an 817.3 that I got at a decent price with the associated sensors, all new connectors and such. It took a bit to find the autotechnik billet adapters for the sensors. Nice thing is I can use the factory wheel speed sensors with this unit unlike the E5 and not have to fab brackets or mod sensors to fit them in the knuckles. I like plug and play!

I spoke with Greenbaum on the E5 and they vetoed that option for 4. I tried to find a E1 when I was looking for all this stuff a long while back and it was still like $500 usd for one so I just went with the semi local 817.3 that had a bunch of stuff with it that I probably won't use haha. I also found bosch motosports pressure sensors via a guy on the FB group after his popped. Looking at them they appear to not have the failure point like the OE ones do (no adhesive based attachement point). Granted they were like 200 for the pair but like you said better than death