Mystery turbo

[Urquattro20V]

This just in:

Compressor wheel:
-14 blades
-Base Ø=85mm
-Top Ø=60mm

Exhaust wheel outlet diameter is 68mm.

[james_bufkin]

Big,
That is same size as the one on the Pikes Peak turbos I have. Roughly the same size compressor as a GT35R.

[Urquattro20V]

Yes I now have from another reliable source that the turbo is similar or identical to S1 spec. Full boost around 5.000, should be good for 600bhp+ depending on the hotside.

Can I buy your antilag system James

[james_bufkin]

Yes I now have from another reliable source that the turbo is similar or identical to S1 spec. Full boost around 5.000, should be good for 600bhp+ depending on the hotside.

Can I buy your antilag system James

Yes I would agree with that and state that the hotside appears to be a #9 or #11. So 600 or 650 depending upon that. The hotside step will be about 600@4500 with the #9 or 650@5000 with the #11. I an using a #7 and I get full hit at 4000 and probably currently using a turbo good for 550. (I have a #7 with 3260 trim 12 blade wheel)

I think the solidity of the 14 blade wheel at 3.4" instead of the 12 blade wheel is a good thing for our engines. This will flatten and widen the compressor knee.

5000 is a bit too much for my taste, To utilize that turbo. You pretty much have to run a solid lifter head and extend your RPMs to 8500 or so. If you are going for a high duty cycle engine, cooling will be a major problem. Look to audisport for cooling solutions.

[oDD]

Look a lot like mine MTM turbo. No identification plate on mine either...

[Albert]

If you are going for a high duty cycle engine, cooling will be a major problem. Look to audisport for cooling solutions.

I will be running endurance car with 2.2T engine soon. The car will be running 3h with one short stop in the middle. It will be running in 4000 - 7000 range. Cooling will be problebly a problem. I have the front small radiator and standard radiator in the right side of the engine bay. Should I use it the small one ?? Where I can find some info on the audisport cooling solutions ?