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Too much boost (and not enough!)
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Posted by IronJoe (more from IronJoe) on Thu, 3 Feb 2005 11:58:10 Share Post by Email
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Hey all. My 87 C900 turbo conv. has a strange attitude. A few light mods: k&n filter, 3 bar fpr, redbox apc mod, fuel cutout bypass, stronger tranny...

Boost seems pretty high at max, gauge dips deep into the red... but midrange, boost seems nonexistant!

I was wondering, is there a good way to lower my max boost and RAISE my midrange with re-tweaking the APC? At 25-3000 rpm it seems dog-slow, but at 4000 i can spin out in the first three gears!

I was looking back at Kevin K's old info, seems like the F pot is MAX boost, and P pot is the rate at which it rises... or something (?) I figure I could lower f, and raise p... does that sound like it'll do something?

Obviously the best solution is trial-and-error, but I was just wondering if anyone else had some insight... Thanks in advance

-IronJoe
1997 900 SET
1993 9000 AERO
1987 900 T16S CVT

posted by 128.208.24...

my c900

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