Finally installing my M50 intake manifold

[themadhatter]

excellent post - I'm about to do the same project on my car but probably with a homebrew adaption kit.

have you had a chance to hit up a dyno before and after the M50 setup?

-Ron

[thinair]

Originally posted by themadhatter
have you had a chance to hit up a dyno before and after the M50 setup?

Nope, sorry. I don't think I'll be hitting the dyno until after I get my M3 cams installed.

[themadhatter]

alright, I'll probaby have a set of 3.2L cams when Eurospeed get's the Shrick cam software public.

if you're having trouble sourcing a set, you may want to call them and Turner up to see if they have any laying around.

either way, I'd really like to see what your worked 2.8L can do, sounds like a trip.

-Ron

[thinair]

Originally posted by themadhatter
alright, I'll probaby have a set of 3.2L cams when Eurospeed get's the Shrick cam software public.

if you're having trouble sourcing a set, you may want to call them and Turner up to see if they have any laying around.

either way, I'd really like to see what your worked 2.8L can do, sounds like a trip.

-Ron

I already have the M3 cams in my possession. I got them from a from a guy on bf.c.

The cams and a 3.38/3.46LSD (still gotta buy) are hopefully going to make my car pretty quick.

[themadhatter]

you're gonna have a blast with that 3.38/3.46.

I have an associate on bfc/dtm who builds diffs - his sn is diffsonline if you're looking for a 'new' diff with zero miles.

I have a 3.38 in my 332is, it flies. you can't go wrong with either one.

-Ron

[Slowered318]

thinair.. won't you need to port the head on the M52 to smoothly open it up to the larger M50 ports??

[thinair]

Originally posted by themadhatter
you're gonna have a blast with that 3.38/3.46.

I have an associate on bfc/dtm who builds diffs - his sn is diffsonline if you're looking for a 'new' diff with zero miles.

I have a 3.38 in my 332is, it flies. you can't go wrong with either one.

-Ron

As much as I'd love to get that diff, I just don't have the budget for the diff. I've spoken to him about it already. Unless I find a used 3.46, the 3.38 is my only hope.

Originally posted by Slowered318
thinair.. won't you need to port the head on the M52 to smoothly open it up to the larger M50 ports??

The head is already ported from the factory to the M50 manifold. It's messed up, the size of the ports on the M52 manifold is way smaller then the port on the M52 head. Don't ask me why.

[themadhatter]

Originally posted by thinair
The head is already ported from the factory to the M50 manifold. It's messed up, the size of the ports on the M52 manifold is way smaller then the port on the M52 head. Don't ask me why.

you're one of a handful of people that actually know that. everyone else 'plans on doing it' to their M52/S52.

good call thinair.

the size of the ports on the M52/S52 manifold are smaller to increase torque in low and mid rpms with a sacrifice to high power. this sacrifice was offset with the larger displacement motors (except the 323is which was 2.5L). by upgrading to the M50 manifold, you will lose the low end torque made possible with the narrower M52 manifold passages but gain incredible breathing capacity in high rpm situations.

more breathing = more air+more fuel = mo'powa!

-Ron