VVT 5.3 Cam swap review, Comp 401, idle clip inside
05-23-2016, 08:09 AM
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Quoted from a HP Tuners forum...
"For the 6.0 liter (LY6, L76) and the 6.2 liter (L92) engine, the Park position for the CMP actuator and camshaft is 8.5 degrees before top dead center (BTDC) or 17 crankshaft degrees BTDC. The engine control module (ECM) can only command the CMP actuator to retard the valve timing from the Park position or advance the valve timing back to the Park position. The total range of valve timing authority is 31 degrees camshaft rotation, or 62 degrees of crankshaft rotation. The control range is from the Park position of 8.5 degrees camshaft or 17 degrees crankshaft BTDC, to 22.5 degrees camshaft or 45 degrees crankshaft after top dead center (ATDC)." --according to ALL DATA's description."
Edit:
Attached a pic of my actual cam retard tables.
"For the 6.0 liter (LY6, L76) and the 6.2 liter (L92) engine, the Park position for the CMP actuator and camshaft is 8.5 degrees before top dead center (BTDC) or 17 crankshaft degrees BTDC. The engine control module (ECM) can only command the CMP actuator to retard the valve timing from the Park position or advance the valve timing back to the Park position. The total range of valve timing authority is 31 degrees camshaft rotation, or 62 degrees of crankshaft rotation. The control range is from the Park position of 8.5 degrees camshaft or 17 degrees crankshaft BTDC, to 22.5 degrees camshaft or 45 degrees crankshaft after top dead center (ATDC)." --according to ALL DATA's description."
Edit:
Attached a pic of my actual cam retard tables.
I have played with my stock cam and found that if i also increase the cam retard while cruising the truck gets a little more mileage.
I know i am using EFI, but the idea is the same. You will feel the car even more powerful, and dont forget to also adjust the timing as well...
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