Predator 212 Acceleration

[Greedy_Jayp]

i have a predator 212 rthats getting jetted & a few other mods..and im wondering what can i do to make my bike get off the line faster than it is ? should i be changing my sproket & clutch ? if so what should it be changed to..i have the big chain set up

 

[Outlaw Ace]

You need a TAV, that will get you there.:thumbsup:

 

[Greedy_Jayp]

what is a tav ?

 

[Big Jim]

Comet TAV2 - Torque Converter - 3/4" 12T #35 - C218352A

 

[Greedy_Jayp]

im goin to look into the TAV...i cant change the clutch and sprolet to get off the line faster

 

[Moedog07]

You could go numericaly higher on you rear sprocket but the clutch gear would be harder to swap out. It can be done depending on the manufacturer of the clutch.

Keep in mind if you go higher on your rear sprocket it can give you better take off but lower top speed unless you have tweaked the engine.

The TAV will cost more but you will be happy with the results.

 

[Greedy_Jayp]

how many teeth should i have on my sproket to get a decent acceleration and still have a good top speed..i already have a small one that has i believe 29 or 30 teeth(small sproket) and it gives me a nice top speed but off the line it struggles..i weight 145-155 and my engine was stock ..now im getting my govener removed,a header made & my carb jetted so would i need around 50 teeth on my clutch ?

 

[lil indian chopper]

i had a tav2 and 72 tooth spocket on my lil indian. thing would pull the front wheels if i wasnt carefull.

 

[Greedy_Jayp]

i had a tav2 and 72 tooth spocket on my lil indian. thing would pull the front wheels if i wasnt carefull.

you have any videos of your lil indian ?

 

[roccosbike]

i have a predator 212 rthats getting jetted & a few other mods..and im wondering what can i do to make my bike get off the line faster than it is ? should i be changing my sproket & clutch ? if so what should it be changed to..i have the big chain set up

What kind of clutch do you have and how many teeth are on it,you say you have 29 or 30 tooth rear sprocket? How many teeth are on the rear sprocket? Then well go from there.Lots of things can be done with a clutch set up but we need info on what you have first.

 

[Moedog07]

64 tooth sprocket seems common for both gokarts and minibikes.

What speeds are you trying to attain realistically? If your goal was mid 20's that would be easy to do cheaply. If you have removed the governor and added exhaust & intake mods the you are there with a simple rear gear swap.


Use this http://www.affordablegokarts.com/SpeedCalc.php

 

[Greedy_Jayp]

what site sells sprokets and what number is my chain since ihave the big chain set up..im seeing sprokets for the #35 chain..isnt that the small one

 

[Moedog07]

Do you have #41 chain? #35 & #41 chain are common for minibikes and yardkarts.

If I knew where "323-951" was I might could help you more. . . is that a cell assignment in cell block ''A". :doah:

Try OldMiniBikes to start. Northern Tool has some #41 stuff too.

 

[Greedy_Jayp]

lol im in los angeles ca

 

[Greedy_Jayp]

im tryin to hit 65-70 with out spending alot of money

 

[graygoose420]

im tryin to hit 65-70 with out spending alot of money

Good luck. Speed cost . It's gona be a head ache getting gears for that 41 chain. I know, I'm the only one running it on a race bike out at the drag spot. Change your stuff to 35 chain . It will be easier to gear. With your current gear You have s 3.0 gear ratio now. Go get a 38tooth rear and that's the best you'll get. that should put you at 3.8 . Take off and mph.

 

[Greedy_Jayp]

Good luck. Speed cost . It's gona be a head ache getting gears for that 41 chain. I know, I'm the only one running it on a race bike out at the drag spot. Change your stuff to 35 chain . It will be easier to gear. With your current gear You have s 3.0 gear ratio now. Go get a 38tooth rear and that's the best you'll get. that should put you at 3.8 . Take off and mph.

where should i look for that 3.8 ?

 

[graygoose420]

where should i look for that 3.8 ?

Your looking for a 38 tooth rear sprocket. Go to joes. He has them.

 

[Moedog07]

Isn't take off going to be weak with a #38 tooth rear sprocket?

 

[graygoose420]

Isn't take off going to be weak with a #38 tooth rear sprocket?

No.
Better take off. Mph will go Down . He has a 3.0 ratio. 3.8 ratio will get him out the hole faster.