Okay short..
you now have a 4.3:1 gear ratio .. and that's not going to work obviously..
we ALWAYS recommend 6:1 for wheels 15" in diameter or less
just take the worst case (15" wheels) for our recommendation and that leads us to:
(6 / 15 * 17 = 6.8) a
6.8:1 recommendation for your 17" tyres.
Since you have a 60T axle sprocket already which is likely still in good condition;
and let's just further assume you can stick to the 14T clutch (since you know where to buy it
)
the jackshaft now has to have a ratio of 1.6 ..
which means a 16T jackshaft input sprocket and a 10T js output sprocket will get you there.
A ratio of 1.6 on the other hand also means that a TC (with a low ratio of ~2.7) can also make that kart more reliable.
So instead of adding a jackshaft and buying a new clutch, you can also buy a Torque Converter ( sereies 30 with TAV2 replacement 1" shaft on ebay costs about 75 bucks)
it'll come with a 10 T sprocket for #40 chain
So in the end you'll end up with a 6:1 geared TC equipped kart...
THAT will work just perfectly!
to get going it has a 16.2:1 ratio on it's low end (way lower than needed.. which gives excellent acceleration)
and on top speed it could overdrive to 5.4 which means the calculated top speed is about that of your current configuration (only difference: it'll work
)
'sid
Be back later! (Out of patience ATM....)
