differences between the m42 and m40

[Streetspec_iS]

What are you talking about ?!? I drive a M10 over here :roll:
I d love it if I had an M40 (16v if i m correct,right ?!?).
A3TeRnuS

uuuhm, no. m40s are pretty much updated m10s, sort of. they are single cam 8 valvers.

[fabianyee]

M10 and M40 are totally different design....
Can't say that M40 is update M10 engine....

However, M42 is based on the M40. there are a lot of common parts used in both engines.

[Stu]

M10 and M40 are totally different design....
Can't say that M40 is update M10 engine....

However, M42 is based on the M40. there are a lot of common parts used in both engines.

Correct, the S14 is actually more related to the M10 than the M40/2

[KenC]

M10 and M40 are totally different design....
Can't say that M40 is update M10 engine....

However, M42 is based on the M40. there are a lot of common parts used in both engines.

Correct, the S14 is actually more related to the M10 than the M40/2

*Off topic here, but Stu, your new sig is the shit!

[Stu]

M10 and M40 are totally different design....
Can't say that M40 is update M10 engine....

However, M42 is based on the M40. there are a lot of common parts used in both engines.

Correct, the S14 is actually more related to the M10 than the M40/2

*Off topic here, but Stu, your new sig is the shit!

Thanks, E30Matt made it though.

[TheyCallMeDale]

my bad, I was under the impression that the 318i 4 doors in 91 came with a slightly different motor than the 318is. If it didnt I might go this route

[Streetspec_iS]

M10 and M40 are totally different design....
Can't say that M40 is update M10 engine....

true, i just meant it was like a newer 8v single cam.

[nando]

my bad, I was under the impression that the 318i 4 doors in 91 came with a slightly different motor than the 318is. If it didnt I might go this route

naw all late model US 318's use the same motor. a 4 door 318 might not be so bad, all the lightness of a 318is with the stiffness of a 4 door chassis :)

[LowR3V'in]

You want an M40?

There is one here at the junk yard.. I think it is french..

[Erick]

What are you talking about ?!? I drive a M10 over here :roll:
I d love it if I had an M40 (16v if i m correct,right ?!?).
A3TeRnuS

Have you not been paying attention? This whole disscution is about how the M40 is an 8v. The 16v here is the M42, with 143hp.