View Full Version : M42 M44 engines

01-24-2004, 02:38 PM
What is the power potential of the M42 or M44? I am looking for a 4 cylinder BMW engine for racing and I cannot afford the S14 e30 M3 engine or one of the old twin cam heads for the M10.

Because BMW went to sixes for power in recent years, no one races the M42/M44. I have heard about one being developed in the US with something like 300hp, however it could be folk lore.


01-24-2004, 03:27 PM
The S14 has great potential, expecially with the strokers kits and major engine work you can get at least 110 hp/litre. But the M42 or M44 i's more limited.. i doubt you could build more then 90 hp/litre without forced induction, that's pretty good numbers but limits you to about 160-170 hp.

I looked into all this when rebuilding my motor.. and realized the only way i'm gonna make my 318 fast is to do major weight reduction.