Originally Posted by jdaniel

Did you have a kid in the front seat with you? You should have pulled me over!

the lack of instant response a centrifugal blower has compared to a twinscrew like I used to own.

Whats the difference between the F1C and the F1A?

Originally Posted by Gary98Z

The F1C/F1R's are physically larger than the F1/F1A. They flow more air, are even louder, and I think may have a more aggressive step up ratio. You can check it out on the chart on Prochargers site. It shows all the specs of their blowers.

BTW, if this link works, here's a clip of a vette with a forged 346 and F1C. It was done earlier this year. He (ebz06 I think) posts on here and dyno'd around 750rwhp - 800rwhp. Pretty stout track times too...9's @ around 140+ if I remember correctly (4l65e too). He can get into boost pretty darn quick!

http://s127.photobucket.com/albums/p...nt=347F1R2.flv

Originally Posted by Urban Legend

http://www.procharger.com/models.shtml
The link above shows the flow capabilities between the different Prochargers.


Personally, I think the F1A will make all the horsepower you will ever need. For sure the F1A will make more than the 650 rwhp KB Cobra you had.

I'll let you drive my car with its low horsepower (535 rwhp) and its small D1SC. That should prove the instant boost response that the Procharger provides.

And yes my kid was probably with me that day we raced. He is always with me. Thats how we roll.