03 Clutching Questions

[RX1BANDIT]

I have a 03 RX1 ER that started out as a 121" sled.

Specs:
144" track
Stock gearing for 121" ER
stock primary
secondary is a team roller with a 68-44-46 ER? I am not sure about the spring though..
k&N filters and silver springs..

I bought the Secondary used with the helix installed. I was told to remove 2 grams per weight in the primary but have not done that yet.???
I wanted to try it and see.

When I have it held at WOT the RPMS hold at 9500 to 9700 and stay pretty steady. It seems to pull hard but I know there is more there.

What should I do? I want to make sure I am doing the right thing without spending a mint!!

Any help would be apprieciated!!

 

[Turk]

With k & N,s they need 10,200-10,400 rpm on top & 10k holeshot for best performance. Your gonna have to lighten up the primary weights by about 1-2 grams in each hole. get a gram scale ; use a grinder & grind down the stock rivets till you get perfect rpm,s.

 

[RX1BANDIT]

Thanks Turk!!! I will keep you posted!

 

[Len Todd]

Seems like you might want to look at the gears too. The longer tracked sleds are typically geared down from the stock 121's. (e.g. Warrior vs. Rx-1, etc.)

 

[kinger]

I agree the 24/38 gears are going to be hard for that engine to pull, I would go to 23 for sure and possibly a 22 but you need a new chain for that.

On a stock sled (121) the 23 gear is a good upgrade get top speed and accell, so for yours I would serisouly consider the 22.

 

[RX1BANDIT]

I was wondering the same thing.. When it comes to clutching and gearing I am a beginner. I was thinking of going with a 23 and see how it does..

Kinger.. Did you get your dads sled back together?

Thanks guys!!