Jump to content

3.0" Pulley installed, vids inside


Farmtruc

Recommended Posts

  • 2 weeks later...
  • Replies 70
  • Created
  • Last Reply
What kind of hp and boost gains do you get changing to a 3.0 or 2.9 pully.  Do you have to change the belt... to what size?

Anyone??? :D

You usually get about 1 lb of boost per every .1 of an inch smaller pulley. For example you might get 7lbs of boost with a 3.3" pulley and 9 lbs of boost with a 3.1" pulley. I havn't seen any dyno runs for hp increase per lb of boost, but its supposed to be like 15-20 hp for every lb of boost.

 

Oh yeah, I had to change my belt when i went to the smaller pulley. Usually you dont have to though, only if the belt starts slipping and making a squeking niose or if you start to get a black powder built up on the supercharger etc. from the belt grinding away.

Link to comment
Share on other sites

  • 3 weeks later...

Archived

This topic is now archived and is closed to further replies.


×
×
  • Create New...