Quote:
Originally Posted by Cobra4B
I disagree a bit... wider LSA makes for a bit smoother idle and the car is easier to tune for drivability. Your power band will be moved up a bit, but it will be roader. Tight LSAs = more mid range, but also a narrower powerband.
Based on this calculator my 232/240 G5-X2 on a 114 LSA has 8 degrees of overlap. A G5-X3 which is 234/242 is a bit more... w/ a 112 LSA it shows 14 degrees overlap.
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Wider lsa does give you better idle quality but it also moves the power up in RPM. I'd rather have street power available sooner rather than later.
BTW: Most cam designers get the valve events right and the lsa falls were it falls. It's not something that is predetermined in the design stage. After the cam is spec'd they look back and see where the LSA ended up. I learned quite a bit from Bret Bauer re cam design when he was doing mine. We still talk all the time.