could someone tell me the difference between these weights and which might be better to use on my 400 xplorer when pulling a weight transfer in a pulling contest (or maybe someone could tell me agood clutch combination for this application). I have a EPI sport utlity clutch kit in it right know.

 

An s58 will pull harder off the line.

 

Sorry I cant help with your question but, may be you can help me? I have the same clutch kit and was wondering what weights they use with this kit. I dont remember. I just didnt want to take it apart to find out. How do you like the kit? What year machine ?

 

10-58 weights are HEAVY HITTERS weights,heavier tip so it will pull harder on acceleration cauze of less belt slippage,recommended on high HP engines.s-58 are non-bushed weights,that mean they have lighter tip for more throttle response through the range and faster revving,recommended on lower torque hp engines.

 

So what your saying is our 400 would be considered a lower torque hp machine?

 

fullthrottle the weights are 10-58 ,the primary spring is red, driven clutch spring is purple,it seems to work pretty good i have a set of s- 58 weights from aaen that have been ground and the kit seems to work better when i put them in lots of low end but i think i lose some on the midrange and topend.

 

i forgot to tell you it is a 2000, k&n filter, 20 thou weisco piston, dual stage reeds, 10 thou shaved off head ,just finished total rebuild on engine

 

trenchdigger, Thanks for the info. A friend of mine has the 2001 xplor 400 and has been playing with springs and weights and is still yet to keep up with me. I am carrying between my winch my cargo bag, atrs on c-series and 20# xtra body weight =close to 80xtra lbs. All he has done is put boysen reeds in and played with weights and springs. Im not blowing him away but, I sure am pulling away I keep telling him to go for the clutch kit and stop farting around but, hay he must be happy eating my dust.

 

what mods done to the quad?
when i said lower torque engine it was reffering near stock trim,or slightly modded.

 

fullthrottle i was wondering if you know what combinations your friend had tryed because i have been playing around with a bunch of combo"s and it is hard to tell what works better because i have nothing to compare it to , i have read on here that the best set up is just changing to the polaris white primary spring , i have tryed this but i think the epi kit is better. i go in a few atv pulls and it is amazing how well this quad in stock trim does against bigger quads,know that i have a few mods ,and if i can get get my clutching figured out for pulling it should do even better. thanks pol.freak & scramblered for the info.