Topgunz - air to air upgrade

mikey1600

Hey mate, quick question on this part;

Possible Stage 2 kit:
Upgrade to V1 Si head unit - Capable of more power than the V3. Will come with all necessary parts to upgrade to this unit.

Will we be able to do this part ourselves? or still need to send the unit away to have parts installed like with the V3 unit? Will this unit also still be self lubricated or will we need to run an oil line to it?

EVOHUNTER

You would have to change the whole blower, to a V1 Si, need oil lines etc..

Most cost affective way, upgrade your impeller and upgrade your bearings in the blower, im not a 100% what you can spin it too, but I think willis said it was 72000? could be wrong.

Topz, im in on the bracket! 100%

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JWillis72

That was on the 928 bearings but Topgunz spoke to Vortech the other day and they said 928 is wrong, the oiling design doesn't allow it to spin more than 53,000. That's why Vortech doesn't offer it with better bearings. If you just change the supercharger pulley to a 3" and nothing else you are at 51,750 at 7,500 rpm.

mikey1600

what kind of psi are you looking at changing it to 3" and the impeller upgrade?

JWillis72

With the 928 impeller mine was at 9 but it probably would be 11 without the long tube headers.