how much gain from ati procharger

does anyone know the approximate horsepower and torque gain from an ati procharger 8psi unit on a stock lt1

I never dyno'd my Z before I put my old P600B on but after I installed it it made 405 RWHP / 418 RWTQ.

The best I got it to run with the stock motor and BBK headers, Flowmaster exhaust, SS ram air hood and drag radials was 13.67@ 100.5 and after putting the blower on it ran 12.43 @ 111 on the first pass

Most LT-1's seem to be in the 230-240 RWHP range stock, let's be optimistic and say the exhaust gave an additional 30 hp so figure it was 270ish before the blower so I picked up roughly 135 RHWP on 8#'s of boost so the old saying of ........each pound of boost equals ~20 HP is fairly accurate.

Marc

Marc summed it up pretty good. ATI rates the gain for the 8# LT1 kit as being in the 55-60% range. That would show you about a 125-140hp increase.

Tom
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My car dynoed with 302 rwhp with bolt ons. After I added the ATI P600B with 8# I dynoed at 415 rwhp and 415 rwtq.

I have not dyno'd the car, but let's just say you had better be going in a straight line when boost comes on. A new set of tires may be needed soon.

Also, you will probably be looking at those cool pictures of Baer brakes,since you will be decelerating from 100+MPH considerably more often now.

I got 406 rwhp and 418 ftlbs up from 278 rwhp and ?? tq. I don't remember what the number was, would have to look so 128 RWHP gain or so