[s-cars] #8 or #6 Turbine for K26/TO4E Garrett Hybrid

[Trevor Frank]

I have seen full boost 4-5-6 gears at around 3k, I found that if you run
too rich at lower rpm's you really kill the heat needed to spool the
turbo.  Playing around with different injectors and different fuel
pressures let me get down to 3k full boost, as well as sealing up all
the air leaks.  I also have stock exhaust cams, this might also explain
my low rpm boost, it also ultimately probably Robs HP.

-----Original Message-----
From: Joseph Pizzimenti [mailto:pizzoman at yahoo.com]
Sent: Wednesday, August 13, 2003 7:21 AM
To: Cody Payne; 'S-Car-List (E-mail)
Subject: Re: [s-cars] #8 or #6 Turbine for K26/TO4E Garrett Hybrid

Cody, IIRC and someone correct me if I'm wrong, but
that combo (K26 #8 hot, T3 center, t04E 50 trim cold)
spools up around 3800 and pulls hard to redline.  I
guess you can get quicker spoolup with a #6, but you
might sacrifice some top end silliness.

Joe

--- Cody Payne <cpayne at bconnected.com> wrote:
> Gents regardless if I go w/ a 50 or 46 degree
> Cold-Side...I wanted to know if there are any
> real-world "disadvantages" to a smaller K26 Hot-Side
> Turbine i.e-#6 vs. #8.  Ray Tomlinson is installing
> a TO4E 50/K26#8 as we speak. (Good Luck Ray...drink
> lots of beer!)
>
> Since I received Corky Bell's book ultimate boost he
> states:
> "Selection of the turbine must focus on the
> principles of spinning the turbine fast enough to
> produce the desired response and boost pressures yet
> keeping back pressure to an absolute minimum."
>
> Smaller Hot-Side Turbine=Increased Back Pressures
> but increased response of turbo.
>
> Thus question is if the #8 is too big vs. #6?  Any
> experiences here either way?
>
> Cheers
>
> cp
> _______________________________________________
> S-CAR-List mailing list
> S-CAR-List at audifans.com
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