View Full Version : 10" pulley

04-14-11, 01:13 PM
helllo guys i am debating between a 10" pulley and the 9.5..... i feel i am going to go with the 9.5 because it will probaly be less stress for the supercharger because if i were to get the 10" i am looking at maybe injectors and a lid spacer. but i just want to know who has the 10 and who has the 9.5 and how do they like it and is it fine for the daily and what mods do they have along with the tune and the heatexchanger, cai that are give-ins... please let me know!!! thanks

04-14-11, 08:12 PM
Hey Bookin have the 9.5 lower with modded air box, custom tune, 160 thermostat, ported snout, wait4me heat exchanger and AM racing headers and high flow cats with stock mufflers. She put down 583 HP at the rear wheels....She runs great and is my daily driver and I put on a bunch of miles for sure. With this combo the stock injectors are running 100% at WOT. So I have a set of 85 lbs. injectors to install along with an ERA CAI and the 10" lower.....She should really rip even better....LOL She went fine before but I'm doing some track days this May and didn't want the injectors at 100% so I figured if I had to tune her again might as well get some more air with that fuel!!! lol:cool2:

04-16-11, 01:00 AM
Thanks for for the info man appreciate it!

04-16-11, 08:26 AM
Either one should be fine. I havent heard nor seen any failures from any route.

04-16-11, 08:29 AM
How much extra power I'd the 10" ring worth over the 9.5"? At what point are injectors needed?

04-16-11, 10:59 AM
At 9.5" you are very close to running out of fuel probably hitting upper 90% duty cycle. A 10" for sure you will need more injector.