stroke and bore m50

[Q is pluged in D]

im doing a m50 swap . the parts i will be puttin on it are vac motorsports stage3 cylinder heads, solid lifters conversion, AA stage 2 twin screw supercharger, a pulley kit, and a lightweight flywheel, and im not sure wat cams i want yet, but i want to bore and maybe stroke it but i want to get a rev limit of around 8.5k or 9k. would stroking it lower my rev limit? would boring it lower my rev limit?? if i can do one or the other or both how much should i go to maintain the rev limit i want?

p.s. my car is a 1986 325es
kyle thanx guys

[FredK]

Um, just stay with stock S52 dimensions and you can rev to your target rpms. Maybe a lightening of the bottom end components would help things last longer.

Also, consider that a supercharger isn't doing anything particularly great at these HEADY rpms that you're talking about. The rotor vanes are set up to deliver peak efficiency in a particular rev range, and most rotors are NOT efficient at 9000 rpm because of the pulley ratios that most are set up with.

What are you trying to accomplish with this buildup? This sounds like a megabuck engine; you might just be better off going with an S54 by the way you're talking.

[Q is pluged in D]

well i want to try to get 500 hp or 450 but would i be able to fit a turbocharger in the engine compartment or what. i might do a little circuit racing

kyle
thanx

[Brew]

Just get an e36 m3 and send it to ICS in Stamford, CT.

[Q is pluged in D]

whos ICS

and what can they do

[1991 318is]

A suggestion.

I agree about the prior post concerning ICS or any of the many other quality tuners. For that kind of motor and money it's usually a good idea to have it built by a professional. It's expensive and time consuming to go through the new weakest link learning curve. What circuit do you plan on running with a supercharged motor?

[Brew]

whos ICS

and what can they do

http://forums.bimmerforums.com/forum/showthread.php?t=451750