Vector to Apex clutch differences

[RSVECTORFREAK]

I bought a used 2006 Apex clutch to replacement the worn out grooves on my stock 2005 vector clutch. I thought all I would have to change out would be the weights and primary spring and I would be good to go. Now I am wondering if the rollers are the same mm?? Anyone else know if I need to change any other part.

 

[Turk]

The rollers are close to the same. 14.5 mm vs 15mm. This will lower engagement & also give you lower initial rpm,s on take off. Not a huge diff & you may like it better. All the specs for stock clutching(all years) is in the tech pages for future refernce.

 

[RSVECTORFREAK]

You are right my engagement went from 4500 down to 3700 and I am overreving on low end to midrange to 8800-8900 and it settles back down to 8500-8600 on top end...The primary spring I had was a blue silver with a rate of 88-288 and when I ordered a new one they sent me a blue green with a rate of 77-315 and between the Apex rollers and the different spring I am way slower from Midrange to top end(Getting beat by an 05 xp500sp in 1600' and I used to kill that sled from bottom all the way to top..Maybe I need to switch out rollers, go back to blue silver primary spring...This started as a Goodwin kit using a 52-36 helix and Polaris S-53H weights...

 

[Turk]

You need to go back to your original primary spring. The higher rate is giving a big overrev off the line.

 

[RSVECTORFREAK]

Thanks Turk that's what I thought!!!