CTSC AP2 Pulley
I have a SOS 4" its good for 8psi. I ran it with stock injectors, though fuel pressure had to be near 100psi to be safe. Not ideal with pressure that high, but it actually worked quite well. Now im moving on to some bigger injectors and management. You can pm me if your interested. $75 shipped. I also have the stock 4.4" 5.5psi pulley for sale.
I'm surprised CT doesn't have the AP2 pulleys. I just bought an AP1 pulley and belt from them today. I bought a used AP2 CTSC with AC kit but ultimately decided on using an AP1 pulley to start for maximum reliability, and to try the AP2 pulley later, or just sell it.
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the supply of 4.2" pulleys seemed to be drying up, i snatched one up recently but haven't installed it yet. i planned on sticking with the fpr. i'm sure one will turn up in the for sale section inevitably as somebody decides to upgrade. i'd just be patient for the mean time.
Originally Posted by DeadZero,Feb 26 2009, 04:52 PM
just go to scienceofspeed.com and order the 4.0inch pulley or call them and ask them for the stock size pulley for the AP2
Pretty steep!I had bad gear grinds from 3rd to 4th, a buddy and I swaped the old one for another. I was thinking, while I had the entire blower off, I would go ahead and do this mod.
But, still waiting patiently.
By the way, I did call SOS (actually I emailed Chris). They don't have access to an AP2 pulley either.






