Mulberry VR 5 Posted February 23, 2017 Report Share Posted February 23, 2017 I've got a rotrex kit for my car and I was told the pulley with it was a 10 psi pulley. I have measured it and appears to be 75mm. Would anyone be able to confirm whether this is a 10psi pulley or not as I am sure I read somewhere that it'd be a bit more than that. Thanks Link to post Share on other sites
FLORIDA747 3 Posted February 24, 2017 Report Share Posted February 24, 2017 Rotrex Chargers don't work on pulley size = psi. You restrict / adjust the amount of psi by putting a restrictor in the inlet side of charger. The size of the pulley is the smaller it is quicker it spins charger giving instant almost boost! but if u are 2 wheel drive it will just spin the wheels. What Rotrex charger do u have? Link to post Share on other sites
Mulberry VR 5 Posted February 24, 2017 Author Report Share Posted February 24, 2017 3 hours ago, FLORIDA747 said: Rotrex Chargers don't work on pulley size = psi. You restrict / adjust the amount of psi by putting a restrictor in the inlet side of charger. The size of the pulley is the smaller it is quicker it spins charger giving instant almost boost! but if u are 2 wheel drive it will just spin the wheels. What Rotrex charger do u have? Sounds interesting, it's a C30-94 charger that I have. What would I need to get a certain amount of boost? Link to post Share on other sites
FLORIDA747 3 Posted February 25, 2017 Report Share Posted February 25, 2017 (edited) u need a restrictor ring goes in the inletside of charger with a radius style machine finish then u open that up with a lave to allow more air to get more psi. I have one that i could sell u, it is set for about 7psi but that can be opened up to get more power or fit a spacer plate or pistons bigger injectors no restrictor and go for it! Edited February 25, 2017 by FLORIDA747 Link to post Share on other sites
Recommended Posts