I have not yet dynoed my new pulley.. My previous numbers were an upsetting 360hp , 232 tq. @ 10.2 lbs Not at all what i was expecting since i do have 11.8 compression. However i am going to upgrade the injectors , get kpro , and a few more things and ill post up a new dyno Hopefully next year if all goes well.

I was told other dynos are higher than the one i dyno on.. But it doesnt matter to me.. I want to be closer to 400hp on ANY dyno.

Ken a few more things to consider depending on ur rotrex set up , I have upgraded tensionor pulley , and i have replaced all but one pulley in the drive to handle a higher rpm. My kraftwerks kit came tuned with a 9000 rpm rev limiter . That went out the door before the first dyno pull.. lol I think my tuner set it at 9300. We all go passed 9rpm.. Lets not lie to our selves.. lol

My setup is moderate from what i have seen others do. There are more than a few people that have gone more out of the box than i have.. far as ID 2000's on e85.. But i wont steal anyones thunder ; I love to see differnt setups and hear there stories

 

I know this is quite old but: does anyone know what size of pulley was the "*option for 15 psi and c400bhp with smaller pulley" for stage 2 C30-94 kit ?
Thanks.

 

This is the BEST answer here. Sell your blower and buy the above.

 

when i spoke to kw about their 90mm pulley they told me they wouldnt suggest as i wouldnt make more power. I currently make peak hp at 7800 rpm but can rev to about 8200rpm (on an ap2)... they claimed anything over 7500 rpm would be severely over spinning the s/c and would likely lead to failure... they did however tell me a smaller pulley is fine on their smaller blowers.

that being said... quite happy with the 451/301 i put down on pump gas and if i had to do it all again i would stay with the same pulley