[quote=Shepard;1411130]
Quote:
Originally Posted by jbbudzz
I don't know how to compute any of that. In your in your opinion with my setup what sprockets should I run? It's a Polaris 340 fan-cooled snowmobile engine with stock primary and secondary clutches that will run to a jackshaft which will in turn run a live axle via chain with 22in tires? I'm Not Looking For Tons of Speed. Hoping for 35 miles an hour and some tork out of the hole.[/QUOTE
A 4 to 1 ratio in your sprockets should work -- That would be a 12 tooth drive and a 48 tooth driven sprocket.
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Shepard,
you have to remember he is using a 2 stroke sled engine not a 4 stroke that has bottom end power. Most sled clutches don't even start to engage till 3500-3700 rpm's on sleds.
I just don't think a 4 to 1 on 22's will work here.
I have played with 2 sled cart's, one we geared to high and the other to low.
And the 6 to 1 would be in the middle of those two carts. We have played and played with these cart trying to get it right. the power ban on these engines is very short.
But then again, we are trying to drag race on a 300-400 foot track.