problems with head/cam install
06-27-2010, 11:00 PM
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problems with head/cam install I have a friend that had a comp 224/228 .581/.588 cam, LS6 intake, new CNC Patriot LS6 heads with 59cc combustion chambers, comp 918 springs, LS7 clutch, SLP underdrive pulley, LS7 lifters, and 42lb injectors installed on his 1999 Corvette.
The car has only 21 degress of timing in, and has an issue with audible detonation at about 5300-5800. You can also feel the power dip in that range as well. There is no knock showing up on logs at this range, so we are kind of lost. Has anyone experienced this?
Pic of dyno chart with dip:
Tony
The car has only 21 degress of timing in, and has an issue with audible detonation at about 5300-5800. You can also feel the power dip in that range as well. There is no knock showing up on logs at this range, so we are kind of lost. Has anyone experienced this?
Pic of dyno chart with dip:
Tony
06-28-2010, 07:01 AM
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Please ignore air fuel and horsepower number. It was 103 degrees in the shop, and the dyno was reading wierd. The air fuel was off a little too, as it was hard to get a good reading off of a stock exhaust. The main reason for the chart was to show the dip at 52-5300
