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Dynamohum Dynamohum is offline
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Join Date: Jan 2008
Location: Midland Ontario Canada
Posts: 173
Originally Posted by wanabe911 owner View Post
Just took my car for a ride and it started detonating really bad on the top end so I shut her down, so what do I do now? Do I have to install the IC, lower the boost level? Pull some timing?
40 years of pulling wrenches for a living has taught me that:
When trouble shooting, Never assume or take anything for granted!
Start with the basics and use a logical systematic process of elimination.

Do you have adequate fuel? An old fuel filter will reduce your flow. Is your fuel pressure adequate under load? Put a gauge on it and verify your reg is working properly.

Did they install the right chip?

Did they confirm your AF ratios with a wide band O2 sensor/ data log after the mods?
Thank You for your time, Paul. We do because we can.
87 911 3.2 (Turbo conversion, build in progress, Thermal Barrier Coatings, High Pressure Dry film coatings) Modified heads, boat-tailed case, ARP hardware, OBX Header, 930 clutch disk, G50 Trans
89 5.0 Mustang convertible (For Sale)
Old 02-07-2009, 04:04 AM
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