Quote:
Originally posted by 91GTFiveO
houstonstangguy, you are correct. The A-trim is no longer being manufactured by Vortech. I think they haven't gotten around to updating the website. You may possibly be able to find an A however, on a store shelf, it that's what you want. I have the SC-trim which is the replacement for the A. The A and SC are distinguishable by looking at the intake side of the blower. Straight impeller vanes indicates an A (or other first gen Vortech) and curved over vanes indicates an SC. When I bought mine, the A and SC had the same part number. Not sure if that's how it is now. So if you are buying new, make sure you confirm what your getting.
From Vortech's website (buried I believe under the tech/download/supercharger section) are specs for all compressors. On there, you can see that the SC has the same absolute hp potential of the S trim, but must spin several thou rpm higher to get there. One interesting note is that it has a higher max efficiency than the S-trim.
Are you thinking of getting one?
hey 91GTFiveO