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BOV or no BOV w/ECU 850

posted by  diamonddave on  Tue Feb 12 14:56 CST 2002
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last visit: Sun Jul 29 08:48 CST 2001
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I have a 1996 850 T5 with the TME exhaust and ECU. I run 0-60 in 5.96 and 14.44/101.47 in the quarter (40 degree, low humidity weather). Not too shabby and inline with what IPD says to expect. What I don't like is that boost stays around 10 psi under 4000 rpms, around 11 from 4-5000 rpms and then peaks at 13-13.5 after that up to redline. Interestingly, when the rpms cross the 4K mark, there is a BIG change in acceleration - almost like going from 3/4 throttle to full throttle.

My questions are:

Can a BOV help me increase the boost at the lower rpms?

Why are IPD's ECUs less than stellar below 4K rpms? Do they limit boost below that mark?

Or should I just be happy with what I have?

Thanks for your input.

Dave.






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New BOV or no BOV w/ECU [850]
posted by  diamonddave  on Tue Feb 12 14:56 CST 2002 >


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