RE: polecat w/40jett motor
Just did a bench run on 15% vs 30% the 15 ran 17500 and the 30 ran 18500. the 30 has 20 % klotz technoplate that has some caster in it.. know the fuel is good, mix it my self. (experence from running nitro boats). Daven with this prop im using and your using and getting another 1000rpm more, is this correct or is your prop cut down. OH and i ran the mini and bob is right the performance is the same in rpm as the full pipe.. got go the the mini pipe, simple install..
Checked my book i had taken the timing on my jett 50 and its 125 intake and 165 exh.
my jett 90 is 125 in and 175 exh. didnt ever do the 40.. but it should be atleast 165 /170 exh. thanks again for feed back Rich B.