If cams are retarded(opening later) you'll loose low end and gain some top end. If shift belt drive two tooth you'll be way off. As stated earlier 1 tooth = 14 crank degrees.
Two importent things to look for when considering cams for a turbo engine:
1. Overlap: With a small turbo exhaust back pressure will be high so overlap has to be avoided. Less restricted setups can get away with more overlap.
2. Intake closes: If intake valve closes to late air will reverse back out the open intake valve at lower revs. Not good for low end power
If using 7A cams set them at std settings or try advancing them a bit. Buy an adjustable cam gear an book a dyno session is the only way to get it right. Buy adjustable chain sprockets and you can adjust cams separatly. If so advance only the exhaust cam to get less overlap without closing intake valve later.
Cheers,
Roger
Two importent things to look for when considering cams for a turbo engine:
1. Overlap: With a small turbo exhaust back pressure will be high so overlap has to be avoided. Less restricted setups can get away with more overlap.
2. Intake closes: If intake valve closes to late air will reverse back out the open intake valve at lower revs. Not good for low end power
If using 7A cams set them at std settings or try advancing them a bit. Buy an adjustable cam gear an book a dyno session is the only way to get it right. Buy adjustable chain sprockets and you can adjust cams separatly. If so advance only the exhaust cam to get less overlap without closing intake valve later.
Cheers,
Roger
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