snowprophet1
New member
My brother just picked up a set of pi end dumps for his 700 sxr, but has no info whatsoever on them. Does anybody know what RPMs they are supposed to run at, or any info on jetting or clutching? We ported it so our setup will be different, but if we know what it calls for on a stock motor, we can guess where to go from that. THANKS! Can't find a website or anything. I heard they are no longer in business? 
Run 147.5 mains, 47.5 pilots, lift needles on mag & centre 1/2. On a ported motor run em at 84-8600 rpm. I have 2 good clutch set ups for those pipes. 14.5 mm rollers, y-s-y primary spring, 89L weights with 2.4 gram rivet, 52/44 helix with green secondary at 70 degrees. For lake racing try stock primary spring & rollers, 89a-10 weights, 45/39 helix with silver secondary spring at 60 degrees.
snowprophet1
New member
Wow! Thanks Turk! Where does it engage at w/the 14.5 setup? He really lost his low end w/the porting, but it really pulls great from 6,500rpms up. Marc Matczak.