Re: Warm temp boost problems - Saab Performance Bulletin Board - Saabnet.com
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Re: Warm temp boost problems
Posted by Dean (more from Dean) on Fri, 19 Jan 2001 19:09:09
In Reply to: Warm temp boost problems, RBR, Fri, 19 Jan 2001 18:02:01
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Most folks have poor performance over 40C, not over 40F.
As it runs well with cold dense air, we can assume that the fuel pump, filter, regulator and injectors are up to the task.
It might be that the cold air is masking something that is causing knocking conditions. This would have to be very severe I think. Could the timing be off? If this were the case, dirty combustion chambers or plug problems could be contributing factors.
The other possibility is a turbo pipe hose joint that is not clamped properly. Too stiff in the cold for the rubber to yield? Opens when not so cold and spills air? Time to snug up the clamps down stream of the turbo, and at the bypass valve as well.
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