i have an 87 with the m20 in it, im looking to put a decently big cam in it. Its still going to be a daily driver in the summer months but the car isnt practical anyway. so what cams/ sizes would you guys recommend or stay away from? Ive heard good things about Schrick so thats kinda where im leaning towards.
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Originally posted by delphin e30 View Posti have an 87 with the m20 in it, im looking to put a decently big cam in it. Its still going to be a daily driver in the summer months but the car isnt practical anyway. so what cams/ sizes would you guys recommend or stay away from? Ive heard good things about Schrick so thats kinda where im leaning towards.
Personally, I would stick with the stock cam if you plan on dailying it. You can’t just stick a bigger cam on an engine and expect it to run correctly without modifying other things like the head ports, intake manifold, exhaust, etc. A large cam will shift your power curve up and make the car feel sluggish in city driving; this effect is more pronounced the larger the cam. Your idle will also be shit unless you tune the idle speed to be higher as a larger cam demands it.
If you insist on having a bigger cam, go with a mild upgrade like a Schrick 272/284 and no higher than that. You don’t want to deviate too far from the factory tune in these engines for a street-driven carLast edited by ZeKahr; 11-01-2020, 10:40 AM.1986 325e Schwarz (sold)
1989 325iX Alpineweiß (daily)
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