more power and longer gears

[dvx304racer]

can anyone help me on my situation I have a 2007 dvx400 with hmf pipe jetkit air filter and stage 1 hotcams but i would still like to have each gear a little longer and maybe better top speed it has alot of bottom end power its real snappy but i like it but 5th gear comes too quick any advise on sprokets or something thanks

[dan42684]

what size sprockets are you using now?

[dvx304racer]

stock so whatever they arei think 40 in the back and 14 in the front

[drzoo2]

You can get a Dyna CDI which will extend the rev limit range. This would be effective for all gears. Only thing with adding a rev box is it's recommended to beef up your valve train, springs, valves and chain so it can handle the extra stresses. Dropping to a 38 in the rear should also pull longer in every gear. 1 tooth in the front is about two in the back.

Here.... this will allow you to play with gearing and RPM

http://home.earthlink.net/~gellett/ltz400.htm

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[dvx304racer]

ya well i just put in a new timing chain and valves and i was thinking about a 15 tooth in the front but thnaks for that calculator thats pretty neat but what i don't get is the tire size what makes you go faster i mean what size tire

[airmobile101]

If its a money issue,I would just put a 15T in the front. Front's are a hella lot cheaper than the rears.

[dvx304racer]

well money is kinda a problem and thanks for the help i think i'll try a front sproket

[drzoo2]

Originally posted by dvx304racer
ya well i just put in a new timing chain and valves and i was thinking about a 15 tooth in the front but thnaks for that calculator thats pretty neat but what i don't get is the tire size what makes you go faster i mean what size tire

The farther you move out from the center of the axle the faster it spins. The larger the tire, the faster you go.

[dvx304racer]

o0o ok thanks to all who helped me out