In Reply to: How about spending $5k... posted by PM3 on January 08, 2000 at 16:30:13:
: and making everything (door, hood, trunk) out of carbon fiber, and getting 11 lb flywheel? That should tack a little more distance between you and then next m3...I think the ultimate would be to go 3.73 differential, and 6sp conversion, and LTW flywheel, and good short shifter, tranny brace, and a little more weight reduction (wheels, exhaust,etc). The car would easily be in high 4's to 60mph, and lower-mid 13's in 1/4,IMHO, as quick as some SC'd M's....CYA>PM3
Everything you say is great except for the 3.73 differential. I used a 3.73 axle ratio in an earlier mustang which had a 1st gear ratio about the same as the 4.21 of the M3. The 3.73 was too high overall (4.21x3.73=15.7 overall for 1st gear)and makes initial street acceleration almost useless. Not only is traction loss aggravating as hell, but you redline the engine in the 26-30 mph range(like a truck)making the 1st to 2nd shift necessary far too early. A 3.45 ratio is much more practical for M3 street/track use.
: : Whats wrong with getting forced induction?
: : You can spend $15k or more on a Euro engine or stroker kit and both (forced induction, stroker) will just have about the same engine life. It all depends on how much pressure it created. Stroker kits won't be able to produce the same hp and torque as a turbocharger! Stroker kits develop a lot of friction on the cylinder walls and thats equals HEAT. You would always have to use a high viscosity oil. Maitenence will just be like forced induction.
: : RDsport, Bekkers, and other turners do sell Stroker kits, which in my opinion can give you the most hp and tq for normally aspirated. I just think it's a waste. Heck I'd rather get Nitrous instead of a stroker or spending over $15k to get the highest N/A out there.
: : You can always upgrade your final drive ratio to 3.7? something.
: : Hope I didn't sound to harsh on this post but if you want a lot of HP and TQ, do it the right and low cost way. Good luck!