So I wanna...

[SherSlick]

Ok so I want to turbo my 1994 325is. I have PLENTY of parts around here to do the entire project, hence why I do not want to get a kit from AA or whoever. I need some help, all my friends have boosted are DSMs and other jap cars. So I am looking for advice on how to setup a BMW turbo system.

Should I put the MAF before or after the turbo?
Should I run a Fuel pressure regulator other than stock?
Do I need custom software?
Bigger Injectors?
Other BMW specific turbo issues?

I have a T3/T4 hybrid that is probably going to get used for this project. I am looking for around 7psi boost, from what I have seen so far this is decent enough on 91 pump gas, and intercooler. I am for sure going to have a bov, it just helps scare the crap outta people. The last request I have is for places that have/make turbo manifolds. I can get one made here for around $500, but its not cast iron. I might also want to run a different turbo, so all possible manifold manufactures would be appreciated.

[SherSlick]

Crap forgot about these...
Computer piggy-back or some replacement unit?
Fuel consumption corrector, is this necessary?

[WhiteM32]

hmm....there is a ton of posts about custom set ups on this board but here it goes...
Cartech makes a good manifold for BMW I6's
7lbs is pretty low boost so no FPR is needed
you will need...
intercooler
all plumbing including the intake pipe with flange for BPV,
the MAF needs to be pre turbo, and cannot tolerate boosted air
unless you do stand alone EMS then the BOV has to be re-routed into the intake pipe near the filter element
you will need larger injectors
you will need custom software unless stand alone is done
I'm sure I'm missing a whole bunch of stuff but those are a few musts on turbocharging an E36

On another note, if you want to save yourself some trouble, I have all my plumbing including my downpipe from my stg2gen2 setup for sale, all hoses and clamps included, for $650
let me know if your interested
Rich

[SherSlick]

I went through every post in the FI area here, and I still didn't get any good answers to the questions I had.

Now I could swear I saw SOMEONE somewhere with boosted air going into the MAF. Well then what EMS would I need to go with?

The cartech manifold is a little steep for me, I can have a local guy make one almost exactly the same for $400 ish. Plus I found out form my buddy that I have a t60? exhaust side. So unless cartech makes one for that flange..

At what boost level should I need a FPR, would I just replace the stocker with one that is boost sensitive?

About what size of injector should I go with?
Do the Ford Mustang injectors fit the e36, like they did the e36?
If they don't, where should I go for the larger injectors?

What’s a good place to tap the cooling lines? I found a couple that looked decent, but perhaps there is one place that is better?

Where should I tap the oil line for the turbo? Just where the factory pressure sensor is? or on the oil filter lid? or somewhere else?

I might be interested in the kit WhiteM32, some picts and a link to who made it originally would be greatly appreciated.

[josemg]

I'm in the same project and I'll recommend to DIY. The manifold is Plug and Play but a little bit expensive. If you have somebody who knows about welding, well, build from scratch and custom. That way, you can accomodate everything in place at your own. You need a 1/2 flange from mild steel (75 bucks machined from exhaust gasket) and a few carbon steel pipes (I'm planning to use 1 1/4" for the runners and 2" for the chamber using 2" 90 degrees elbows for the exhaust to turbo flange). The welding should be about 100-150 and you can have your exhaust manifold for less than 200's.

Hope can help with.