Quote:

Found in their hyper catalog...

street nitrous:

TOP ring factor = 0.008 > 3.94 x 0.008 = 0,0315"
SECOND ring = 0.004 x bore > 0,0157"


I think thatīs it...



That number for the second ring seems too tight to me, even on motor.

I followed my ring manufacturers instructions when gapping mine for the nitrous, and it recommended a larger ring gap up top then for the second ring...Then I posted about my gaps on another board, and was told by a bunch that the second ring gap should be bigger then the first to allow the trapped gases to escape.

I would say gap them larger then you actually want to spray, because you are going to want more pill size after a while, and the larger gaps really shouldn't hurt anything...but seeing your running hypers, I wouldn't push them too much...I'd be more comfortable spraying cast then hyper pistons, but thats just me.