Topgunz - air to air upgrade

Originally Posted by milkcow500

Whoops, I thought I responded to this already, but I guess I never hit sent.

Here's the deal with the Ti trim blower: Vortech specifically makes it for a company that sells aftermarket SC kits for the C7 Corvette. You cannot have your unit upgraded/converted by Vortech, since it runs a larger volute and impeller.

Your only choices are to buy one straight out like I did, have superchargerrebuilds bore your unit and replace the impeller (Their 'Ti trim' upgrade), or do what Evan is doing and have 928 build your blower.

No updates on my build yet, since the car has been in the body shop for the past month +. When it's done I'll be doing my serp side pulleys and flex fuel dyno tune.

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Originally Posted by StillenZ84

Yep I thought the best route while still keeping the stock Vortech head unit, was to just send it to 928 and have them do the super vortech upgrade. All new bearings to support up to 72k rpm, their impeller, high performance seal on impeller shaft, HSS steel bearings, and they shim and adjust the impeller. Im planning on around 18 psi with this setup with my new build. Should put down some pretty good numbers for sure.

Originally Posted by JWillis72

Don't spin it any faster than vorteck says, I tried spinning mine faster with their bearings and blew up the supercharger.


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Originally Posted by TopgunZ

Jwillis, no offense, I respect your efforts immensly, but I honestly think it was the shops fault ,that did that build, for the sc chewing itself apart. Stillenz84 has been 8k over the recommended limit for almost a year on the standard bearings. And we have seen him beating the piss out of his car much more than most.

Then again, maybe I'll be eating my words, but we won't know till someone tries again. Pioneer power!