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Post by joshready on Feb 16, 2021 21:19:22 GMT 1
Snippet from Kiwi Biker :- Edit - good example would be a LC 350 Yamaha racebike. Keeping the original scavenging system ( B ports up at 35* ) the best I could do was 66RWHP. The next version had staggered timings ( A first ) and with modern radial and axial angles , 10mm fatter pipes - 20mm shorter , first dyno run was 77RWHP without adjusting anything. What page was that? Confirms a bit of what im thinking. |
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Post by dougw on Feb 17, 2021 9:09:38 GMT 1
That snippet is a bit vague it's like comparing an apple to an orange It was really to point Joshready at the KiwiBiker site he follows, won`t make much sense to anyone not familiar with that site, but it does indicate A port opening first has worked well, for one 4L0 porting arrangement, anyway. Unfortunately, Tuners do not tend to give away ALL the info about what they have learned and do. The Kiwibiker site (https://www.kiwibiker.co.nz/forums/showthread.php/86554-ESE-s-works-engine-tuner/page2338) is a goldmine of general 2t tuning info , but not much specifically RD related. (Page above probably a few on from where I got the snippet) |
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