I agree on the dyno numbers. Unfortunately I can't attach the scan of it as it seems that the file size is too large (2.88 mb). Anyway, I know the absolute numbers produced from a dyno vary quite a bit from dyno to dyno, setup to setup and obviously with ambient conditions, so I don't have much faith in the numbers really unless they're back to runs looking for a relative change.
That said, the actual shape of the curve shown on the graph, does not seem to match what it feels like the bike is doing.
Edit: Just so we're clear here, I'm probably not going to do much more than fix the exhaust and maybe replace the filter element, I'm just a sucker for wasting time learning about things for which there is 99.95% chance that I will never put into practice...go figure
I understand why the LSA and timing stuff would be guarded, thats serious labour hours in pulling the engine out, apart and putting it all back together between dyno runs. Heck, even if you have an engine dyno it would still be annoying to change the timing, check clearances and then re-seal everything between pulls.
You could check the maximum limits of an increased LSA by taking it all the way to the minimum valve clearances, but without knowing what number to set it too, well you may as well leave it stock given how much it would cost you in time and dyno runs to work it out yourself...
Reply With Quote
Bookmarks