[s-cars] Turbo Replacements

[Dave Forgie]

Cody: While most of the alternative turbos, including the GT2871,
physically might fit on and bolt to the stock EM, conventional wisdom
suggests that this is not a wise practice.  The stock EM does not flow
as well as the RS2 EM and may lead to hot "spots" e.g. burnt Cylinder
No. 1 and 5 exhaust valves.  Javad from 034 has posted flow numbers for
his welded SS EM that are better than the RS2 EM.  I suggest you rethink
running the stock EM with the GT2871.

But, as I say on AudiWorld, that's just my high horse elitist opinion
(IMHHEO(tm)).  (Its an in-joke).

Dave F.

>>> "John Cody Forbes" <cody at 5000tq.com> 12/27/06 05:01PM >>>
Actually with option #3 there you don't need a new EM w/ GT2871, though
it's 
still a very good idea. I just  put a GT2871 on a '93 S4 a few weeks
ago, 
fitment of the turbo was fine with stock manifold and downpipe.

-Cody Forbes
http://www.5000tq.com 
'86 5k noT noQ
'86 5k noT noQ - Parting Out
'87 5ktq
'87 5ktq - Fast. Really Fast.

Dave Forgie wrote:
> Paul: You have several options for turbo replacement (which I will
get
> wrong and somebody will correct me, no doubt):
>
> 1.  Rebuild you existing K24 turbo. - can be done but not very cost
> effective given you still end up with a K24.
> 2.  Buy a used K24 turbo from somebody who has upgraded their turbo.
-
> probably fairly cost effective if all you want to go is MTM+1 or
> equivalent
> 3.  RS2 turbo - a bit pricy.  Was THE ticket a few years ago but
there
> are better or bigger turbos for the same money or less.  You need to
> upgrade the Exhaust manifold to RS2 EM or something from
034Motorsport
> plus bigger injectors and new software, aka the "slippery slope".
Good
> for about 370 crank hp.
> 4. GT2871, GT3176 Garrett ball bearing turbos - these are the "new
> kids" on the block.  Good bang for the buck, similar to the RS2
turbo
> but more legs.  Still needs EM, injectors, and software upgrades.
> More grease on the slope.  Good for over 370 crank hp.
> 5. GT30R, GT35, GT35R - These are near the top or OVER the top. 
Will
> make over 400 crank hp with EM, injectors, software, etc.  Totally
> greased slope.
>
> How much money you got?
>
> HTH
>
> I am sure others will chime in.
>
> Dave F.
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