RE: [s-cars] Mmmmm, Turbo :)

[Lewis, Gary M]

Christian Said:
 
> Gary,
> 
> Talk to me about this RS2++ turbo of yours.  From your sig -
> 
> "K26 Turbine, Factory K26 Cold side (Audi Works '999' P/N) 
> with 50mm intake and custom Innovative Turbo compressor wheel."
> 
> How does this compare to your run of the mill RS2?  Cost?  Thanks!

In the case of my cold-side, Audi played with what Ola at Innovative does now, which is make the cold-side intake ~50mm, and machine the back of it to accept a larger compressor wheel.  In other words, my cold-side is FACTORY unobtanium, but Ola will machine your to the same spec.  I found it on a 1993 S4 with RS2 EM, but otherwise stock.  The compressor was attached to a K24 turbine wheel.  I put it on a K26 turbine.

Here are the details from my original email:

*******************************************************************************************
The readers digest version reads:

Call Ola at 805-526-5400, tell him you want what Gary Lewis got.
Web: www.innovativeturbo.com
Price:	$950 exchange (1986-1988.5 5000tq turbo as exchange)(I'd do this.  Junkyard turbo's are ~$50)
		$1,600 outright
What you get:	

Ola rebuilds the turbo to new.  He machines the cold-side housing by cutting off the intake and putting on another so that the opening is around 50mm.  He machines the inside of the cold-side housing.  All this machining allows them to install a larger, newer type design compressor, which is proprietary, they are using it on their Porsche program, anything that uses a K24 or K26, C2's 944's, etc.

Complete bolt on to the S car line.

With all the RS2 goodies and 26 psi VMAPD s/w full boost is achieved at ~3,400, 3rd gear (my car spec).  It builds from about ~2,400 however, so it is very linear boost wise.  I'm hoping the FMIC and RAIS will lower pressure loses, and give me ~200 to ~400 rpm back w/respect to full boost.  I'd like to get 26 psi at 3,000 rpm.

Some primary differences between this turbo and the RS2:

RS2 has the smallest of the w/c K26 turbine wheels.  The stock K26 5000tq turbine wheel is larger, which flows better at high boost.  Compressor side is the larger K26 housing, with the larger K24/RS2 sized intake, and a MUCH larger compressor wheel.

I am not an agent for Innovative, I paid them for my turbo.  Just a happy cutomer.

*******************************************************************************************
Gary Lewis

1995.5 S6 Avant, Green/Ecru, RS2 MAF, RS2 Exhaust Manifold, RS2 Injectors, Custom Turbo (K26 Turbine, Factory K26 Cold side (Audi Works '999' P/N) with 50mm intake and custom Innovative Turbo compressor wheel), TurboXS Type 25 Bypass Valve, Bilsteins, Eibachs, Big Reds, Spec II Clutch.