M50 question

[325 eta]

what header do i need to use. when it comes to puting a m50 into a e30

[rwh11385]

m50 exhaust manifolds. needs attention/work to clear control arms (or something like that)

[Brian 89 325i]

From what i heard you can use most any M50 manifold thats not a full length header but the DOWN pipes need changing to clear the control arm. DONT QUOTE ME ON THIS THOUGH. If im wrong please correct me.

Brian

[JasonH]

From what i heard you can use most any M50 manifold thats not a full length header but the DOWN pipes need changing to clear the control arm. DONT QUOTE ME ON THIS THOUGH. If im wrong please correct me.

Brian

Brian is correct. The down pipes require a little cutting and welding, but any of the stock manifolds work. Get the the M52/S52 tubular style manifolds and create two small block off plates for the OBD-II emission equipment that you won't be using.

[325 eta]

thanks i want to get all my parts ready for the swap. also please recommend a good cd that will explain most of my questions, i hate bugging you guys with every little problem that arises with my swap.


thanks ,
eric

[Brian 89 325i]

What about after market shortie headers like the Bimmerworld ones? WIll they fit with custom down pipes?

Brian

[e304eva]

From what i heard you can use most any M50 manifold thats not a full length header but the DOWN pipes need changing to clear the control arm. DONT QUOTE ME ON THIS THOUGH. If im wrong please correct me.

Brian

Brian is correct. The down pipes require a little cutting and welding, but any of the stock manifolds work. Get the the M52/S52 tubular style manifolds and create two small block off plates for the OBD-II emission equipment that you won't be using.

make sure you weld the passages between cylinders shut on the back of the header flanges if you use them

[Brian 89 325i]

Which passages are you talking about? What are they for? And are these only on the stock manifolds?

Brian

[Stu]

Don't waste your time with shorty headers, they don't do shit on M/S50's. Stock M50 manifolds are all you need. If you can, get '96-on manifolds, which are stainless, and 8 pounds lighter.

[SlammedE30]

If you want a parts list give Precision Performance a call, they can tell you everything you need. Stu can help you out with contact info.
-Ted

[bimmerphile]

Check out this thread:

http://www.r3vlimited.com/phpBB2/viewtopic.php?t=2129

Very full of info