You'll never get the same power... (archive)

They have custom cams, injectors, head porting, patented valves, and custom chips. Be lucky if you get your car back to its original power output after a rebuild. MM has cut up a lot of heads to find out how to port them corretly, and spent many hours of dyno testing on exhausts, cams, and chip tuning. This is not a Chevy engine--it takes a lot of work to improve what BMW has already done. Don't get me wrong--improvements can be made, but it's not as easy as dropping a Holley carb and intake on a small block.

Having said that, install a cam, 9.5:1 pistons, and get a chip tuned by Jim C. As for the exhaust, you'll have to put out more than 225 HP to upgrade the existing system. It is rather quiet and hassle free. A custom system will not be so suave. Get a 3.45 or 3.73 diff.

$2500 for an engine rebuild is pretty good if it includes parts and labor, but don't expect a huge jump in power. MM's price on the 3500Hi-Flo ST Sport engine is actually quite reasonable, considering the level of modification. You get a reworked oil pump, water pump, cam, dual valve springs, ported head, high comp forged alloy pistons, lightweight wristpins, and countless items that you nor I would ever think of. They've been in the business for a while. Those that have the MM engines really like them. I've considered one for a long time, but I bought an M5 instead ;-)

Speed costs money--how fast do you want to go??

Ed Teller--How's your MM Stroker engine??

James
james_535@yahoo.com
88 M5
88 M3
83 535i

Follow Ups:

After all that, I think I'll look .... josh smiley 18:25 1/30/2001 (0)

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