Pulley sizes and Boost?Please Help!

[Crazyhorse88]

Hi Guys just getting my install done,unit is a p-600b. I have 2 pulleys that came with the kit, I bought it used, One is 3inch across the face of the pulley the other is 3.25inch across the face I have a 3 core intercooler set-up please let me know what boost levels I should expect with these pullyes.I dont want to blow anything up! Thanks Frankie.

[pablo]

Hi Guys just getting my install done,unit is a p-600b. I have 2 pulleys that came with the kit, I bought it used, One is 3inch across the face of the pulley the other is 3.25inch across the face I have a 3 core intercooler set-up please let me know what boost levels I should expect with these pullyes.I dont want to blow anything up! Thanks Frankie.

Frankie:
You will need to know the size of crankshaft pulley before you choose one of those sc pulley.
I will suggest you go with the 3.25, and if you have the 7.67" on the crankshaft, and a 6000 rpm redline on the engine, I think you will se about 6 psi.
I hope this would help you.
Take care and enjoy the boost.
Pablo

[Hank]

Hi Guys just getting my install done,unit is a p-600b. I have 2 pulleys that came with the kit, I bought it used, One is 3inch across the face of the pulley the other is 3.25inch across the face I have a 3 core intercooler set-up please let me know what boost levels I should expect with these pullyes.I dont want to blow anything up! Thanks Frankie.

I'm told by the guys at Procharger that the pulleys for the 5.0L 87-93 are as follows:

3.65" = 6lbs non-intercooled, 3.4" = 9 lbs non-intercooled, 3.2" = 9 lbs after intercooler/11-12 lbs before intercooler, 3.0" = 11 lbs after intercooler/13-14lbs before intercooler, 2.8" = 14 lbs after intercooler/17 lbs before intercooler, and 2.6" = 17 lbs after intercooler/20-21lbs before intercooler.
(Based on the 7.67" Crank Pulley, 6,000 RPM @ Crank, and a Stock 5.0L Motor - Note: better heads, intake, cam & exhaust = less boost but more airflow & HP)

Hope this helps,

Hank