sidewaysagain
Member
Straightaways about 120 feet long & hair pin corners. Which do you prefer for box stock Predator with 10.8 lb valve springs, header, aftermarket air filter & re-jetted. Tire sizes range 38-41 inches. Thanks
Straightaways about 120 feet long & hair pin corners. Which do you prefer for box stock Predator with 10.8 lb valve springs, header, aftermarket air filter & re-jetted. Tire sizes range 38-41 inches. Thanks
9/54 = 6.0Straightaways about 120 feet long & hair pin corners. Which do you prefer for box stock Predator with 10.8 lb valve springs, header, aftermarket air filter & re-jetted. Tire sizes range 38-41 inches. Thanks
Your turning it to much now, leave the 12 on and lower the rear to a 64 try it if it's better than lower rear even more 62.Currently 12 & 67 5400 rpm's-we can run any rear sprocket size. 41 on RR yes.
Box stock predator starts losing power at 4900 RPMI'm at 5400 now. These Preparator motors start loosing power after 5500.
What chain ? You do realize that on #35 chain a ten tooth is either out board with an extension or has no bushing or bearing .I think I'll order a 10 tooth and try it. Lol, Thanks Alvin.
box stock looses power @4600 . 4900 is too far out of rangeBox stock predator starts losing power at 4900 RPM
Its not a box stock Predator once you change springs, header, air filter, and jets.Box stock predator starts losing power at 4900 RPM
Lots of big money races are being won with smaller gears and drivers.I always choose the biggest tooth driver possible as it is the best mechanical advantage and lowest friction.
"Losing power 4600 RPM and." But that doesn't mean there's not enough horsepower above 4600 RPM to keep accelerating. The acceleration rate may be a little slower, depending on the horsepower, but it can keep accelerating after peak HP, just at a slower rate.box stock looses power @4600 . 4900 is too far out of range
doesn't matter who won on what the bigger the front driver the better the mechanical advantage plus lower friction. if you are looking for every possible advantage go with a bigger front driver you can't argue physics.Lots of big money races are being won with smaller gears and drivers.
GKK winner of $10,000 was on a 14, where use to be 17. Lots of the other big AJC races are being won on the smaller also.
Actually, if the gear ratio is the same, there is no mechanical advantage whether you have a 10 tooth or 15 tooth on the engine. 10/40, and 15/60 are both 4.0 – 1 ratio. Where's the mechanical advantage?doesn't matter who won on what the bigger the front driver the better the mechanical advantage plus lower friction. if you are looking for every possible advantage go with a bigger front driver you can't argue physics.
Not sure about the lower friction. Im not a science type of guy, but i do know the more something ( here is size between the 2 gear sets ) is rubbing creates more friction than something thats smaller. Maybe it isnt the case here, but i also know for a fact here that with the smaller gear set the axle spins freer than with a larger gear set, creating less friction maybe.doesn't matter who won on what the bigger the front driver the better the mechanical advantage plus lower friction. if you are looking for every possible advantage go with a bigger front driver you can't argue physics.