Re: SD chips solved - Saab Performance Bulletin Board - Saabnet.com
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Re: SD chips solved
Posted by SWEDISH DYNAMICS [Email] (more from SWEDISH DYNAMICS) on Thu, 16 Aug 2007 15:56:56
In Reply to: SD chips solved, Aero91, Wed, 15 Aug 2007 15:51:39
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Aero,
Thank you for the update and good to see you at the SNW.
Your charging pressures seem to be fluctuating and the OEM GARRETT T25 turbocharger should be able to target a steady 20+ psi towards 240 BHP. There may be a detection of detonation which is being identified by the DI/APC control unit wherein reducing charging pressures or you may have other limitations such as a bad bypass valve, etc. which is causing boost fluctuation. Try pulling every vac. line from your intake manifold and attempting to blow through (with mouth) the open end of each line as you should not be capable of passing any pressure through these lines. If you have the ability to blow through any line, chase the line to its component or end to find the culprit.
We should be available tomorrow and over the weekend if you need some additional file information.
Best Regards,
GaryK at SWEDISH DYNAMICS,INC.
http://swedishdynamics.saabnet.com
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