The cam I installed in my engine has the rpm range listed at 3600-7600. What stall speed toque converter would be best suited for this cam? Would a factory torque converter from an h.p. 383/440 be O.K. or do I need to go aftermarket and get a higher stall converter? Rear gears are 3.73.
There are too many variables here to give a definitive answer but I don't think a stock converter will cut it. Stall RPM usually works best when equal to peak torque RPM, give this info to your converter supplier (if you have it). Custom converters are worth the money if you want to get the best out of your entire combination.
For info, I've recently fitted 3.73 gears in place of 4:10's. Stall has increased 900 rpm (5200 - 6100) on my 8" ATi treemaster and slip at the finish has gone from 9% to 16%. I didn't think it would be so sensitive to rear ratio, unless I've broke it !
but I will be needing a converter for N20 any way
