Is ptv a normal problem? Please help!!
05-20-2010, 07:07 PM
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Is ptv a normal problem? Please help!! I have a 5.3 aluminum and noticed ptv problem with the install of a new cam. My cam is .515/.522 lift which in my mind is not that huge. Recently bought new timing set to advance it but how far can i advance it? Now its on 109 center line and comp cams cam sheet says 110 center line but that is two keyways from dot to dot. Exhaust valve is about .037 now. What to do?
05-21-2010, 09:11 AM
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whats the durations?
lift doesnt have nearly as much to do with PTV as duration.
so you already have it 1* advanced?
whats your intake PTV? advancing might give you some exhaust clearance, but do you have enough room on the intake side?
lift doesnt have nearly as much to do with PTV as duration.
so you already have it 1* advanced?
whats your intake PTV? advancing might give you some exhaust clearance, but do you have enough room on the intake side?
