so my 92 325i in 5th gear doing 55 my rpms are at 3200...now that seems pretty high or is that how the car is suppose to be, done to it is chip, m3 exhaust, and intake...also i noticed when it idles, it idles around 500-600 rpms and it feels like its cammed but when i go to go it doesnt stutter or bog or anything its smooth, whats could cause the high rpms and the 500-600 idle
aslo a guy from bimmer forums said "Wrong diff ... sounds like you might have a 3.91 (from an automatic car) instead of the 3.15 it's supposed to have ..."
Wow, what happened to all the nice people? I would look into a different differential. Maybe the stock one got swapped out for a limited slip. Lucky you have half shafts and don't have to get a whole rear end.
The AutoGuide.com network consists of the largest network of enthusiast-owned enthusiast-operated automotive communities.
AutoGuide.com provides the latest car reviews, auto show coverage, new car prices, and automotive news. The AutoGuide network operates more than 100 automotive forums where our users consult peers for shopping information and advice, and share opinions as a community.