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Titan_Omega 01-14-2013 03:00 PM

Recommended updates 86 E30
I have a 1986 325e and I am wanting a bit more something out of it. I like the Set up of the M20 but it needs a little updating. Something i was considering was a M20B25 Head. But my main reason for that is to update the Motronic so i can install a Miller Performance MAF kit. Can I just swap the head and then the Motronic or is it a bit more complex than that. I am asking because im going to be replacing the head gasket soon.

This is my first and only car I am also getting a 1991 318iS. So so far the E30 is the only car i have driven. But anyhoo any suggestions to make this car more fun please suggest away.

Also dose the 86 325 have a LSD?

downhiller 01-14-2013 06:25 PM

engine swap. there is a bit more involved with the b25 head swap. mostly ending with boost. and most the e series had open diffs, mainly the es had lsd.

Titan_Omega 01-14-2013 06:27 PM

what more is involved with the B25 swap?

downhiller 01-14-2013 06:45 PM

2nd page under technical m20 2.8i e to i conversion

Titan_Omega 01-14-2013 06:57 PM

thank you vary much i wouldnt have found that lol. From what i understand i pretty much need the whole top end, wireing harness, and Motronic

hornhospital 01-14-2013 07:37 PM


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