Pulley advise

[black04vert]

current mods are stage 4 port, 2.8 pulley, sct2400 mass, accufab throttle body and plenum, catted prochamber factory cat back, k&N intake, and NX 100 wet shot.

I am considering changing pullies or maybe adding a 2lb lower to what i have or can I benifit from a 2.93 and 4lb lower

Last dyno was 489hp/467tq
622hp/672tq

 

[04torchred]

current mods are stage 4 port, 2.8 pulley, sct2400 mass, accufab throttle body and plenum, catted prochamber factory cat back, k&N intake, and NX 100 wet shot.

I am considering changing pullies or maybe adding a 2lb lower to what i have or can I benifit from a 2.93 and 4lb lower

Last dyno was 489hp/467tq
622hp/672tq

2.93/4lb is a pulley ratio of 2.935
2.8/2lb is a pulley ratio of 2.857 so this is slightly slower, but not much difference so just get a 2lb and don't waste money on a new upper as well.

How often do you drive the car? If you don't daily drive it and can keep it cooled at the track you could step up to a 2.8/4lb which is a ratio of 3.071. You are spinning it hard and will lose top end, but you will pick up a lot down low.

 

[mrose75]

current mods are stage 4 port, 2.8 pulley, sct2400 mass, accufab throttle body and plenum, catted prochamber factory cat back, k&N intake, and NX 100 wet shot.

I am considering changing pullies or maybe adding a 2lb lower to what i have or can I benifit from a 2.93 and 4lb lower

Last dyno was 489hp/467tq
622hp/672tq

Just about the route I'm gonna take except for Steige gonna port everything, different brand of products and I have a bassani mid and catback, and no nitrous. I guess a 2lb will put 'ou over 500 which is my goal. Looks good.:thumbsup:

I agree with him^, BTW!!

 

[black04vert]

Thanks for the info, I will be going with a 2 lb lower.