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trx400exxracer
12-30-2005, 08:46 PM
I have a 400ex and I race xc and I already have my suspension mods on there and they are still coming but I want some more low end and torque.

I was thinking
fly wheel weight
cam
but I don't know which ones to get and what other stuff I can get to get more low end power and torque out of this thing

and what about the powernow kits I heard they added low end

I was planning on this stuff in the future

dirt308
12-30-2005, 08:48 PM
A 14 tooth front sprocket would help too. You loose a little top end but gain it on the bottom.

whiteflash
12-30-2005, 08:51 PM
Originally posted by dirt308
A 14 tooth front sprocket would help too. You loose a little top end but gain it on the bottom.

what he said^

trx400exxracer
12-30-2005, 08:54 PM
yeah but I kinda have that perfect top end right now doesnt a cam help by not hurting your top end or any other options

and how much would a 14 tooth sprocket down the top speed:confused:

nosliw
12-30-2005, 09:02 PM
torque is all about compression ratio and stroke.

gear down if internals aren't an option.

400EX QUADER
12-30-2005, 09:46 PM
stage 1 hotcam...

Punk'd
12-30-2005, 09:50 PM
Cam, Gearing down and a pipe would be plenty:)

CannondaleRider
12-30-2005, 10:25 PM
Originally posted by trx400exxracer
and how much would a 14 tooth sprocket down the top speed:confused:

1 tooth down in front = 3 teeth up in back

Meaning you can change it a smaller amount by going with a bigger sprocket in the back

sly400ex
12-30-2005, 10:26 PM
High compression piston also;)

2004exrider
12-30-2005, 10:37 PM
i didnt really loose to much topend when i had just a 14 tooth sprocket. I am currently running 14/39 combo and still go 56mph. I felt some pretty good all around power with the hotcam stage1. Intake and exhaust if not already done. But a high compression piston like the other guys said will help you out pretty good.

Jimmy

400exrules
12-31-2005, 12:24 AM
Originally posted by trx400exxracer
I have a 400ex and I race xc and I already have my suspension mods on there and they are still coming but I want some more low end and torque.

I was thinking
fly wheel weight
cam
but I don't know which ones to get and what other stuff I can get to get more low end power and torque out of this thing

and what about the powernow kits I heard they added low end

I was planning on this stuff in the future

down a tooth in the front, stage 1 cam, sparks timing advance key, remove the choke. If thats not enough, get a piston and lower your gearing even more. It should be enough though.....