Stroke .....? power curve....?
SBC, 3.335 stroke, we have a ci limit of 366, steel block, run on no bigger the 1/4 mile tracks, most are little 'bull rings'. 16 deg brodix heads 15.5-1 comp, will we make any more top end power and how much more? going from a 4.145 bore to a 4.2 bore with a 3.280 stroke? We are using 6.2 rods now, what if we went to a 6.280 rod with the shorter stroke? Most tracks are black slick at the end of the night but start with good drive.
All top quality internals are used, currently turning 8400 rpm max, what we have now is working realy good, but having trouble making too much power off the turns at the end of the night. Wanting to make more usable power up top and not pull so hard off the turn, due to the short tracks and tight turns, the cars don't carry alot of momentum, so traction is hard to come by.
We also only use a 2.150 int valve, will going to a 2.180 pick up the top end?