M30b35 swap into 1990 vert *NOW WITH LIFE!!*

[ThatOneEuroE30]

Corvallis my e30 is a 1990 m20b25 (manufacture date Oct 1989)
I uncliped each individual lead from each injector.

That one euro, my b35 harness is uncut and working completely fine.
I've read about fitment issues with it however...
I would much rather stick with the b35 harness TBh it seems a bit more logical.

What fitment? I mean yea it's tight but completely doable. Save yourself time and stick with the b35 harness. It's plug and play with your car aswell.

[Mr. Burns]

Not so much fitment but the cleanliness of the final fit.

Also I seem to have two long rectangular ECU ports on my b35 harness??
1 cruise control?

When I finish my swap this will be a 100 page thread:( sorry R3v I'll donate more $ lol

[CorvallisBMW]

One is probably for the trans computer, if it was an automatic b35 car

[Mr. Burns]

You're right...
Jeeesh long day.
Throwing in towel

[hotdish]

In my swap, I used the '92 m20b25 harness. I had to clip off the plastic injector wire cover, but all the wires were long enough, except for the charcoal can wire, I think.

It would definitely look cleaner if I had time to put the b35 injector cover on it.

[CorvallisBMW]

The b35 injector cover really ties together the room... err bay :)

[Mr. Burns]

thanks all, even spoke to Frank M. regarding the choice, and b35 harness hands down.

Thanks again for the continued support R3V can't wait to get back in the garage and keep going:D

[Mr. Burns]

update-

cleaned and scrubbed and cleaned and scrubbed the engine bay some more.

hammered back the firewall about 2 inches.


engine goes in Saturday morning

[Mr. Burns]

Almost in

I'm stubborn and thought I could drop the engine in with the fan and not hammer in the firewall.

I was wrong.

Done for today.

Will get it fully by Monday

Pics for fun

[Mr. Burns]

[ThatOneEuroE30]

Lol yea for the swap you need to take that firewall back about 2.5 inches maybe 2 since you got a b35 and eliminate the fan clutch cause that's what the spal fan will be put in for. I'd highly recommend dropping the motor and tranny as a whole.

[Mr. Burns]

My tranny bolts are tied up at the boarder (ordered from bmw atlanta) and at this rate I just need the engine/car our of the garage so I can have the car sent to storage...winter hit here today and we need the garage for our daily car

Friend of mine locally has his m30 in his e30 and he didn't touch the firewall.

Tomorrow I'm removing the fan and hammer in the firewall.

Live and learn

[ThatOneEuroE30]

How your friend did that is beyond me

[Mr. Burns]

It's official.

M30 b35 doesn't like to be dropped in without its tranny.
Motor is so unbalanced.

Guess it's staying in the garage for the winter and the e30 is headed to storage sans engine.

*grumble*
A set of torx bolts for my transmission is all I needed to get the whole unit in there*grumble*

Patience I suppose

[ThatOneEuroE30]

Ah that sucks. If I was you I'd bang your firewall more. Not in the tranny well but right where the brake line is. In the spring :( your gonna wanna connect the motor to the tranny and get a good engine leveler to make balancing the motor easier. Good luck man hope it all works out.