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Performance When the race track beckons, find out how to mod your car, supercharge your GM engine, and start "Winning"

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Old 03-23-2012, 08:05 PM   #11
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When you go WOT, you have full boost. The only time the PCM is controlling the boost is under normal driving. Driving with full boost on before the PE tables are used and you risk running lean. Normal driving is 14.7:1 AFR, WOT on a supercharged engine should be set to 11.7:1. Normal driving your timing is upper 20s, to low 30s. WOT your between 15* and 18* manual control is great an all, but we are dealing with people that may not have as much experience. And in that case, I feel it'* better to error on the safe side. I've had my share of damaged engines in my shop from beginners over boosting. Chipped pistons, spun bearings, etc. Power isn't boost, it'* a perfect balance of AFR, timing, and boost.
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Old 03-24-2012, 10:15 AM   #12
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If you have to drive your car under normal conditions most of the time then you shouldn't be building it. You should be driving a grandpa car. Your "Shop" has probably built many cars for people who have no ideaa how to use it that is why you have seen so many problems.
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Old 03-24-2012, 10:29 AM   #13
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I've seen so many because of people doing things without knowing what their doing. I have to clean up the mess others create. Also, every engine is different. Had one here that was running a 2.9 pulley and I got 20* of timing at WOT, another engine, same set up, and I couldn't get him past 16* of timing. When adding more then stock boost, you really need to scan all the time.
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