- Joined
- Nov 11, 2012
- Messages
- 599
- Location
- Sweden
Hi yall!
Back on track with the 570 (I use this bike for ice racing and this winter no ice, so other things got the attention, but now aiming for next winter.)
Got the CP piston, check.
Now I have had time to glance the heads and I measured min port diameter to 26,5-27mm fairly round, is that what you other guys have found too?
Im thinking thats going to have way too high airspeed on a 565cc for any sort of top end.
On the ice you need top end, but of course as broad range as possible down from that.
I dont want to push the revs as its a long stroke, but still too restrictive here ime.
Anyone got experience or can point me in a direction to someone that can tell or have suggestions on port design?
Im fairly used to engines and tuning, I just havent tried this bike/type of head before, so any help/directions is highly appreciated!
Cheers Tom
Back on track with the 570 (I use this bike for ice racing and this winter no ice, so other things got the attention, but now aiming for next winter.)
Got the CP piston, check.
Now I have had time to glance the heads and I measured min port diameter to 26,5-27mm fairly round, is that what you other guys have found too?
Im thinking thats going to have way too high airspeed on a 565cc for any sort of top end.
On the ice you need top end, but of course as broad range as possible down from that.
I dont want to push the revs as its a long stroke, but still too restrictive here ime.
Anyone got experience or can point me in a direction to someone that can tell or have suggestions on port design?
Im fairly used to engines and tuning, I just havent tried this bike/type of head before, so any help/directions is highly appreciated!
Cheers Tom
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