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What sort of power should I get from my vrt?


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Before I reveal my dyno power figures I'm just wondering roughly what sort of power I should be getting, so here's a quick spec list

OBD1 VR6 engine converted to coilpack

Schimmel front intake

Siemens 630 injectors

8.5.1 spacer

Gt3076 turbo. O.62A/r hot side

Omex management

VW plug leads

4" air filter

3" exhaust right through

2.5" intercooler pipes

Spa exhaust manifold

38mm tial wastegate

02m 6spd 4wd gear box.

Suggestions from other people running similar setups and there power figures would be very helpful, thanks

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I would say around the 400bhp mark and around 360ft lbs torque!

I've got a very similar spec with a custom short runner, 8.5/1 comp, 3 inch exhaust, 4inch maf and filter, with a GT3582r, but with standard OBD1 management and Bosch 440cc injectors (at 4bar), at 14psi with 354bhp and 340ft lbs torque.

Can you spill the beans now? ;)

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480bhp seriously?

Well I only managed to get 355bhp with 370ftlb of torque.

It seems as if by 5500 the turbo has reached it's max power.

Also forgot to mention it has a set of Autotech 262 cams fitted aswell!

The guy that maps it normally does Subaru rally cars so maybe he is missing something or as the turbo is only a gt30 the A/R housing is way to small.

I think I need to take it to someone more clued up to the VW scene.

Anyone got suggestions?

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Yes I would say that the turbo is a little too small.

Even still I would expect a bit more than that to be honest. I'm running standard ams too, half a bar less boost than you , standard management tuned by Stealth Racing and have a little more power?

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Sorry I read the AR of the turbine as 0.82 as you must mean yours is a 0.63

0.63 is FAR to small for a ~3 litre engine, it will choke at high revs. the 0.82 is also too small if your going for numbers.

I just looked through a collection of dyno sheets here and the closest one to your spec. made 360hp at 1 bar of boost.

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