Out of interest what top mounts are you running. It the last thing I have to do as I have already done the coilover thing. I am toying with the idea of adjustables but don't really want rose jointed top mounts.

Roops.

Well, I'm in the UK, drive very hard on the road and harder still on the tracks in my 1989 325i.
At the limits, I can feel the imbalance and I'm doing something about it - no not changing the engine - rather, the bumper and bonnet for plastic versions that weigh next to nothing! I'm even toying with the idea of changing the power steering for a manual rack, but not sure if one exists for a right hand drive E30 !

if my engine dies, I reckon go with the Z3 328 engine, gearbox, drivetrain as it will be lighter than the E30 M3 engine - which should my car close to the perfectly balance I'm after!

MadKipper
Ipswich, UK
325i, stock engine, coil over suspension, uprated brakes, bushes, adverse camber mounts, strut bar.

My question is this. **What are the similarities and differences between the M3's S14 engine and the 318is M42 engine(apart from displacment)?** They look very much alike from under the vavle cover!! I was thinking that with the high cost assosiated with the E30 M3 S14 engine could one simply swap the S14 for a M42. With the cost difference, one could easily develop a nice intercooled turbo setup giving the M42 in the same power (or more) than the S14. This would retain the weight ballance of the 4 cylinder E30 M3. One could drive the hell out of it and if it breaks, simply find another M42 engine.