E30 Street/TimeAttack (+ E36 V8 Turbo Touring)

[FreedomM3]

Theres a youtube video I saw a few years back, guy used a simple process to keep the foam in shape and be able to use the shape he had made. ill see if I can find it and post.


edit:

here it is

https://www.youtube.com/watch?v=XeeSsmsm9h0

[Miuge]

I've been searching for a suitable turbocharger lately, it's been too damn cold at the garage to do anything without keeping it warm continuously

At first I was looking for a Precision 6766, but then I noticed BorgWarner has released their new SX-E series, which might be a notable rival being also a little bit cheaper.
The one I'm interested is the S369 measured at 69/91mm comp and 74/80mm turbine.

I was wondering if anyone is running an older S366 in their M30B35 for reference? I'd like to see dynographs and boost/backpressure charts..
In case there's no info available, I'd probably go for a T4 1.00 A/R housing as my engine will be +10:1 CR revved up to 8k and supercharger will be helping at the low end ;D

Ideas, suggestions, help?

[Miuge]

Recently I acquired 3D printer for rapid prototyping, one of the first test pieces was our designed BMW M10/M30 rocker arm. Got a few ideas how to utilize the printer with the E30 :)
(click to view the video clip at facebook)

[brainfood]

Holy shit, this is unreal. Props to your skills man

[Reubenjd]

This car is looking nuts so far, looking forward to seeing what other ideas you come up with too

Sent from my SGH-I337M using Tapatalk

[Miuge]

Thank you! :)

I got one control arm kit welded and painted for promotion use, almost looks like factory-made.

[Northern]

I haven't bothered to comment on your FB page or posts to r3v, but that control arm looks great. Any plans for a production version?

[stonea]

I just read through this thread again and.... holy crap

[Miuge]

I haven't bothered to comment on your FB page or posts to r3v, but that control arm looks great. Any plans for a production version?

Yes, just a matter of time ;D


Earlier I inquired about S300 series turbochargers, but calculations proved there's no big enough turbine housings available, so... I had to look for something bigger. S467 would meet my requirements, but I wasn't sure if it would fit at all. Luckily I found one for testing, with 5" intake pipe:


This is a cast wheel unit with regular comp cover, I'll probably get the billet wheel unit with race cover:

[Miuge]

Yesterday I spent a couple of moments looking and turning the turbo in different positions, tried different steel bends and ended up doing two collectors. The manifold will be equal length 6-2 type, I still need to make a turbo flange and get few more bigger diameter bends. But here's a start:

[Miuge]

At some point I thought I will never manage to make an equal length manifold, but after few hours things were on the bright side.
Primaries are 42mm pipe which connect to a 3-1 collector, after that there's a short 51mm pipe/transition piece to the turbo flange, all pipes are equal length.


This is the sight at the end of the day:

[CubbyChowder]

Awesome stuff happening in here!

[Miuge]

Category: Because racecar

[Ether-D]

When I see that this thread has a new post, I can't click on it fast enough. Some of the best fab on r3v.

[Miuge]

Great to hear that :) You should try click faster this time.

Besides bodywork sketching I finally welded turbo manifold together, still needs wastegate piping and coating: