just installed epi's yellow clutch spring wow!!! did it ever wake a sleeping beast yes it kicks in high rpm but it dont bother me. my vforce got hmf duals ;jetted a set of web cams and clutch kit except stock spring in driven clutch didnt like black one . got pink,red,yellow and purple epi springs best one tried yet is yellow still amazes the difference it made yet to try purple but for drag racin yellow way to go so far i can see

 

how high does it kick in? where's the biggest difference in power, low,mid,top?

 

as far as rpm's it kicks in not sure i say between 2500-3000 maybe not sure were is the power all the way to top still cant believe it anybody with modified vforce got to try it but like i said may kick in more than some like but not too bad i dont think

 

Howdy,
My son just put the EPI orange spring in his V. We are going to give a try this week end.

 

fullthrottle, thank you how 'bout the red and purple? more or less aggressive than the yellow?

 

Did you try the HPD PLain?

I believe the yellow is 95/145 and the HPD plain is 50/210 at the same length

 

red spring ok but rether have the yellow definantly, the purple havent tried it yet it kicks in even higher rpm but also shifts out real high to these are the numbers on it 118/180. ross 650 i bet the orange work good to