[Biturbos4] Turbo reliability

steadi@comcast.net steadi at comcast.net
Wed Aug 31 00:41:18 EDT 2005

On Aug 30, 2005, at 4:26 PM, Quincy Chiang wrote:

> I just read that and wonders the same thing.  As far as successful  
> K03 alternatives for our S4, there are:
> - straight K04
> - K03/K04 hybrid
> - K03/K16 hybrid
> - K04/K16 hybrid
> Personally I don't quite trust how the hybrids are made, and there  
> have been a few failures on AW.  I don't the whole story, but I  
> would trust the factory pumping out K04s versus some small company  
> rebuilding busted K03 turbos.

Stay away from any of the K03 hybrids all they are doing is glomming  
a bigger compressor onto the small Stock S4 turbine. Problem with  
this is there is no place for the heat to go especially when the  
turbine inlet pressure goes up with the greater mass flow from the  
bigger compressors.

The hot ticket imo if you are dead set on the hybrids is a RS6 wheel  
on a RS4 hotside. Works great on the race car.

Eric Fletcher
'00 S4tt
RS4 K04 Turbo Conversion
RS4 Intake and Fuel
RS4 intercoolers
RS4 Downpipes/modded for flow
Miltek Exhaust
RS4 Flywheel/Clutch and Pressure plate
Penske Suspension
Stoptech 332 fronts Stasis 298 rear Brakes
Abt Z6 18x8 Wheels
Euro Headlights
and all sorts of other toys...

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