ttrousdell's Project Thread (E30 M3 & S38 swap content)

[Bimmer_man]

Love the S38 looking good man

[The Dark Side of Will]

I tested the resistance of the intake air sensor. At about 80F I read 1.84kΩ and as I held the sensor in my hand and warmed it up, the resistance dropped to about 1.6KΩ. I'm not sure what the resistance should be for a given temp but since it does change I assume it works.

The sensors almost never go bad; My main question was regarding the wiring and DME connector pinning. An open circuit on the IAT sense line can cause the DME to think that the temp is -40F or so and add excess fuel to compensate. If the wiring is damaged or on the wrong pin on the DME connector, then that could cause problems with excess fuel.

[bradnic]

any updates? read the whole damn thing. wonderful work.

[F34R]

Bought an e34 M5 for parts, swapped the harness over to his e30 along with the ECU. I believe he is working out the injection system running rich or something.

That was the last I knew from talking on the phone a few weeks ago with him.

[MJCRO]

Can't frickin' believe I've never seen this thread. Just read through everything and bravo man! Hope you solve out that injection issue quickly.

[stanhayward]

Well I'm joining the party late... This is a killer engine, if my M20 ever dies I'd love to do this swap.

[ttrousdell]

After what has seemed like forever I have done enough for a new post. About a month ago I came across a 91' M5 on Chicago Craigslist. I booked a plane ticket out there and drove it 800 miles back to NY.

My plan with the car is to take the drivetrain and sell the rest. I know i'm killing a hand built. I wish i didnt have to but the car will need a good amount of work to be brought back to presentable condition. Interior is non existent and the body could use work. Unfortunately it was someones track toy. The engine and the transmission were rebuilt and have about 75K miles on them.









The first thing I have done is swap over the harness and ECU. I have a feelign this is the source of my troubles with the s38 in the e30.



Great having this car as a reference.

[ttrousdell]

Fabricated some of the exhaust using what came off the M5. Single magniflow muffler for now under the car.

[ttrousdell]

Now that the car has half an exhaust I figured I could take it out and beat on it. The car has the new harness and computer but now has a high idle (around 2K). Ill have to figure this out in the next few days. May try swapping the TPS and IVC and syncing the throttles right.

[CW325]

Looking good!

[CW325]

Just saw your last post of it running!! I need to see this in person haha!

[Bimmer_man]

Nice build man that looks hella nice.

[F34R]

Awesome man! your smile says everything!! Now get your ass to upstate NY for some weekend backroads.

[rzerob]

I just read the entire thing, wow.

[E30darkknight]

nice to see that you worked out everything and its running good now