jyrgNorway wrote:
First thing you do, is putting those new pistons in as they are. I strongly recommend you trying out this new set-up without increasing inlet duration at all to keep some low end power.
And when doing this, you will have a guide line how your motor woeks BEFORE you do none reversable modifications. You cant raise your cylinders either, because you are very close to dragrace spec at your exhaust duration.
You have a couple or so degrees left for your transfers, but thats all.
By the way: If you raise your transfers, you will hurt midrange, the powerband will start later, but ypu will probably gain a little peak power (IF sufficient blow down, which it seems you have if ex ports are widened and squared as well)
And with lectron 44, good 115mm diameter pipes (they are 7mm wider than my Jollymotoes) and durations like you have, more than 130 rwhp is within reach IF everything is done correctly and the pipes works.
Ok Jorgen you win
Will save me some grinding to
Never messured blowdown but ports are wide and square alright.. And 130 rwhp would be nice but i would settle with 120 with better midrange..
Thanks Jorgen!