E30 Street/TimeAttack (+ E36 V8 Turbo Touring)

[MrBurgundy]

This build is getting me all hot and sweaty. I'm feeling things I've never felt before.

[iwantspeed]

that last picture looks awesome

nice progress on the manifold

[Miuge]

One busy month behind, but not with the car.. Some progress with cylinder head and intake manifold.

Along with some other laser cutting parts I finally ordered an adapter plate for the gearbox. I've machined a centering tool to align everything perfectly before marking the holes.


Earlier when starting to make the intake, I was talking about one minor compromise..
There was no enough room for the supercharger or atleast it would have been very difficult to mount it with all the piping etc, so I decided to get rid of it.

Now it's only this baby taking care of the boost production Custom 1.10A/R exhaust housing is on it's way.

[Miuge]

Thank you all! :)

Lately I was browsing the interwebs looking for a throttle body to get the intake finished. No reason to go massive size flap so I wanted one to fit my alu elbows. I found a 80mm TB and same shop was selling v-band flanges suitable for the upcoming exhaust system, incidentally I found an oil filter relocation kit with thermostat, I think the blue color won't stay though...

[1986_325e_Canada]

I also read through the entire thread, very inspiring work!

[lemansguy]

I just read through everything, the car looks amazing! i love every aspect of it.

[CubbyChowder]

nice work!

[Miuge]

:up:

Next thing was to make the airbox/plenum part. Space was limited but the volume will be near 9 liters when finished. I think there's no ultimate formula for calculating ideal volume, but 2-3 times the engine displacement should do when seeking at maximum power.

Started with two long radius elbows and a piece of straight tube:




Tried to fabricate a smooth air inlet transition piece, this should distribute air better than just an elbow welded to the bottom:

[econti]

Man that looks well cool

[Miuge]

...story of the intake manifold continues:

Tuned length 330mm:

[Miuge]

Summer vacation is over... back to work and back to build the project.

I supposed to fabricate intake manifold right after the exhaust was done, but I ended up doing something else Now I felt like doing aluminium parts. Previously I did aluminium charge pipes for my friends E21 turbo and welding felt pretty easy, maybe because of the thicker material or gained experience :D Anyway...

Got to start from somewhere, cut hole for IC to throttle body -pipe:


Making plenum backplate:




Our hydraulic press channel


Now with integrated trumpets:




Next on to do -list are the runners, there's no too much space and I think I have to do some minor compromises.

[econti]

That's engineering porn. How are they compared to the original arms in terms of strength?
Are they going to be available later on? Might be interested in a set for mine, but money is tight ATM due to my R32

[Miuge]

If anyone else is interested in similar front control arm kit, I've got a few extra sets in stock.
U.S. buyers please contact dylan@neuemotorsports.com he's making a pre-order.
Scandinavian buyers please contact info@motornord.se
If located elsewhere, please contact us magnusracingteam@gmail.com

"These control arms are made for E30 chassis to accept and correct the front end geometry using E36 or E36-M spindles.
E36-series spindles are often used to get 5-lug bolt pattern, but they also have better variety of brakes and coilovers than E30-series. Spindle itself has better geometry for racing as it is closer to E30 M3 variants.
The most notable advantages are correct wheel location and roll-center/bump steer correction which are decayed when substantially lowering the car. On the side the adapter plate also makes the steering ratio quicker. Kit only has about half the weight of orginal cast control arms.
The kit offers a chance to adjust the front end the way you want it; width, caster and anti-dive properties are all adjustable.

This is pure motorsports from the E30 DTM era."

[Miuge]

I've heard that those anti-fog liquids doesn't work very well at Finnish weather conditions, blower or a heated windshield is a must.

One day I tried how things fit in those RF wheels, 15mm spacer is minimum to clear the caliper but with 7" inner barrel it's pretty close to damper. So maybe a 6.5" barrel would be a better choice.


As someone might ask, here's the complete list of the parts:
-E36 M3 spindles
-E46 M3 OEM rotors with aluminum hub
-Brembo ZL/ZR18 calipers
-MagnusRacingTeam control arms with roll-center/bump steer adapters
-K-sport circuit dampers with custom valving and spring rates for my car

[Schnitzer318is]

Subbing... wow.

Those tires are almost as wide as what I run on my 4.8is e53 (325/35/20)! Awesome to see so much tire on an e30.