Quote:
Originally Posted by renault_megane_dci
How far have you been ?
To my knowledge, most of the VVT set up are pressure oil activated (there is an oil cavity inside the pulley of the camshaft that is filled on demand and retard or advance it)
Advancing the cam requires deeper valve cut outs, it $$$tarts to add up pretty fast.
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Yes I've looked up most set ups and most of them operate by oil pressure, I was making a set up that worked of off centrifugal forces, it would start off at around 105 deg intake cam centerline ( I can't go any lower or the valve would hit the piston), and around 10k rpm would start retarding to around 111 deg cam centerline.