What pulleys equate to 7lbs of boost on a stage i MPI Nytro

[snowmaaan]

I have a 5 lb setup and want to go to 7lbs...any help?

Thanks

 

[MOUNTY]

contact MPI or HARTMAN INC. Not something you want to take chance with! The pulley's are pretty pricey though. With a supercharger, you can adjust the boost with clutching as well. If you want a little more, raise the RPM, 8700-9000 works pretty good. I was at 9pds of boost at 9100

 

[snowmaaan]

Really good point! Love my Nytro with the charger...so much fun and so far, so reliable!!!

I will do...spinning mine at around 8900 as well. Want more!!

 

[rj998]

(for me) 0-3000' 28/28 9000rpm 7/8 psi