Re: '01 Viggen prbs - Saab NG900 & OG9-3 Bulletin Board - Saabnet.com
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Re: '01 Viggen prbs
Posted by AlaskanViggen [Email] (more from AlaskanViggen) on Sun, 9 Sep 2007 19:30:40
In Reply to: '01 Viggen prbs, Bill, Sun, 9 Sep 2007 17:27:38
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Pre-ignition from bad MAF?
Is the K&N filter the oil type? Those are bad, they can foul the MAF, stick with a paper filter. The Viggen exhaust is pretty good already--a larger downpipe is recommended first. I'd avoid an ECU upgrade that requires higher octane to make HP. Can you guarantee good pump gas? Nope.
Larger intercooler and cold-air intake, adjust thermostat and cooling fan for lower under-hood temps. Along with the touchy MAF and plug-based ping detection, these are all well-documented weak spots and I have to say your mechanic should have steered you differently after the last blown engine.
No way you'll recover what you have or will put into this. Send the entire car off to one of the top-rated rebuild shops that folks talk about here on the board, get everything upgraded and tested properly: chassis, engine, suspension, etc. Plus you'll have a warranty which will make your car stand out in the classifieds. Or you may decide to keep it, which I highly recommend...
posted by 209.112.138...
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