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07-04-2010 #1
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- Join Date
- Dec 2006
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The VVT is nothing to be scared of. In stock form it basically takes the cam from a base of 0 which starts a few degrees advanced and retards it to give you the top end. Where GM pushes it is at low rpm and low airflow where it advances it up to 25 degrees for emissions and fuel economy. Aftermarket cams like mast block the degrees to a much smaller range. There is no real tuning of the VVT necessary, it just works progressively as RPM changes. There may be more power to be found with tweaking just how the cam moves as rpm changes.
1971 Chevelle 4dr sedan, 454, 4l80e TCI controller, Edelbrock fuel injection, 3.55 rear end, C6 front brakes, LS1 rear brakes. GTO seats front and back 400,000 plus miles, still my daily driver. Been in the family since it came off the showroom floor.
http://webpages.charter.net/buddyholly/Chevelle.htm
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