More infor would help............. - Saab 9000 Bulletin Board - Saabnet.com
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More infor would help.............
Posted by zeke (more from zeke) on Thu, 17 Jan 2002 07:28:27
In Reply to: BASE BOOST, JOHN, Wed, 16 Jan 2002 18:39:45
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Relative to adjusting the wastegate actuator, where did you get the
ECU? Stock full-pressure boost is close to 15 psi, so it sounds as if
you've got a small problem - maybe a vacuum leak in one of the control
hoses. Base boost should be between 6-7 psi. Have you made an adaptive
run (the car should be brought to a long uphill piece of highway and
run @ full throttle from 2-3500 rpm, approximately, in 3rd, or 4th gear)?
Adjusting the wastegate actuator will not increase the peak boost,
whatsoever - all it does is reduce turbo lag, up to a point. If you
raise the base boost too high, you run the risk of defeating the APC's
ability to reduce boost when predetonation occurs.
posted by 134.241...
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