Quote:
Originally Posted by
RickM
Hi, I wouldn't know about riding two up and fully loaded but one easy (obvious??) way of increasing effective torque would be to fit a larger rear sprocket (cheaper/simpler than engine/exhaust mods). What you lose in top speed is made up for with increased acceleration.
Cheers, Rick
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Hi Tommy,
Don't know if you're still considering the 660Z but I've had a 1 tooth oversize
rear sprocket on mine for about a week now and can say that there is a noticable and usefull difference. The engine obviously revs up quicker and makes the bike quite a bit smoother as the engine can pull better from lower revs. But perhaps of more use is improved response/acceleration at motorway speeds. Holding a GPS 80mph (when you're going with the flow!) into a head wind/turbulance/heavy air mass feels a less of an effort than before - for the bike, at least - and with about 2000 rpm still in reserve and between 1/2 - 2/3 throttle opening, mpg shouldn't be adversely affected either.
1 tooth was enough of an increase for me - those with a, err...."less than advantageous"
power to weight ratio may want to try a 2 (or more) teeth increase.
It would be interesting to see how the increase in
rear wheel torque with a larger rear/smaller front sprocket compares with the increase in
engine torque from a modded engine/exhaust (in terms of gain per �'s spent)
Oh yeah, one thing - the OEM speedo now reads about 12% over.
Cheers, Rick