Fiat 130TC cam timing and adjustments
Posted: July 26th, 2006, 3:56 pm
Hi to all!
I have some questions regarding cam timing and adjustments that you can do to take the best results from your engine and fit your needs.
With long duration cams e.g 40/80 80/40 we know that the inlet valve closes long after btc so the piston has less stroke to compress; that means less static compression ratio that not helpful to acceleration at low rpm but offers more at high rpm.
So if we advance the cam deg. and give some more equal lift, the "poor" torque low rpm will be benefit from that? If we use higher compression pistons it will help the situation?
With that adjustment how does it influence the high rpm band?
What cam duration is more efficient for drag race? Considering that the engine is going to built for drag racing.
I have some questions regarding cam timing and adjustments that you can do to take the best results from your engine and fit your needs.
With long duration cams e.g 40/80 80/40 we know that the inlet valve closes long after btc so the piston has less stroke to compress; that means less static compression ratio that not helpful to acceleration at low rpm but offers more at high rpm.
So if we advance the cam deg. and give some more equal lift, the "poor" torque low rpm will be benefit from that? If we use higher compression pistons it will help the situation?
With that adjustment how does it influence the high rpm band?
What cam duration is more efficient for drag race? Considering that the engine is going to built for drag racing.