scooter3

So I picked up a 3.12 pulley to switch out my 3.33. Right now I am at about 10 pounds of boost. What kind of boost am I looking at with the 3.12? Running intercooler and powerpipe. I also assume I will need a re-tune for this?

dwtjr3

Will definitely need a rerun and I would estimate around 12lbs?

I have been thinking about swapping too, I have the same pulley u do but I just didn't wana push my block too much cuz with the 3.33 im putting down 400 rwhp

02TrueBlueGT

Plan on getting rid of the 3.33 pulley?

scooter3

Not sure yet. Need to see what my tuner says. Going to email him today. If he is hesitant then I may hold off until I get my build done. I will let you know though.

I figured I might be around 12 pounds.

dwtjr3

^ Im doing the same thing as you haha, im itching for more power but I know my block is limiting me. I put down identical power numbers as you did

I started piecing together a motor too haha

Gt04

I decided to say f my stock motor and if it blows it blows lol. Just put in my cams and longtubes and swapping to the kb 14# pulleys next week then a retune. Maybe if she pops it will motivate me to assemble my new block I've been pushing off

e/ i made 12-13#s when i had my vortech and the 3.12 pulley

dwtjr3

Haha that's a nice mindset gt04 haha. If I had a built motor at home I think I would do the same thing ur doing

scooter3

Haha...I guess we are all in the same mode. My plan for the rebuild is early next year. I don't drive the car much so I figured why not. Pulley down, see what happens. If it goes it goes then I rebuild it.

Mustang_NTriangle

13 lbs depending how much you are spinning her too. I had 3.12" pulley with anderson powerpipe with 13 PSI at 6500 rpms. If you got LTs 1 psi less.