Power is in my signature. Mods are in post #11
. You can get near 400 rwhp (approximately 450 hp at the crank) with a supercharger running 9 psi. We used to have lively debates on which was best. The truth is all are good. A few years ago we took a survey of those that had over 100,000 miles supercharged. There were three. One ProCharger (mine), one Vortech or Novi (I don't remember which), and one Saleen (a twin-screw). But there are differences.
The main two centrifugal superchargers are ProCharger and Vortech. The ProCharger kit comes with an air-to-air intercooler. Vortech does not but you can add either an aftermarket air-to-air intercooler or an air-to-water aftercooler. Both lower the inlet air temperature allowing you to make more power without the fear of detonation. ProCharger also has a different internal gear ratio that allow the use of a larger pulley. That help prevent belt slippage. I'm not sure but I think Kenne Belle is the only twin-screw left for our cars. Centrifugal superchargers build boost with rpm and reach peak boost at redline. Twin-screws make peak boost early and blow off the excess. The result is that twin-screws have more low end torque. But that is harder on stock connecting rods.
I am a ProCharger fan. I have 141,000 miles on mine and it is still running strong. It has its own oil reserve which I change every 5,000-6,000 miles. I also clean and re-oil the air filter at the same time. A lot of people like Votech. Some swear by Kenne Bell. Superchargers are perhaps the cheapest and easiest way to get over 450 hp. A centrifugal supercharger is basically a bolt on modification.
ProCharger P-1SC, 9 psi, STD 396/383; Uncorrected 388/375; SAE 383/370.
Ret. USAF 1969-1973,1980-1996: Vietnam veteran. Aircraft maintenance. R & D, ICBM Operations.
Also own: 1997 Harley FXDWG, 1998 F-150, and 2002 Corvette LS1
Last edited by Eagle2000GT; November 23rd, 2018 at 08:45 AM.
Reason: fixed typo