re: Boost--HP

["Matt Martinsen" <mattmartinsen@hotmail.com>]

A bit of info on turbos (courtsey Ned Ritchie of Intended Acceleration, 
if anybody knows he does) posted to the 20v list a few weeks ago:

>Here is some info on hp vs turbo size:
>MAXIMUM CONTINUOUS HP --  The KEY word here is "CONTINUOUS"          
>I've left off the turbine sizes except on the 5000
>to "hold my cards closer" and keep everyone guessing.

>You can push them a little for street use, but at a track stick with 
>proven
                 >sizing with matched computers and other parts.

                 >Did you know the 4 numbers after the K?? number
                >give the inducer and exducer sizes?

                 >300 hp K26 2664 CA  6.95 (5000/200 stock)
                 >265 hp K24 2470 GGA (the stock one)[I push to 277]
                 >285 hp K24 2670 GGA (an early prototype)
                 >300 hp K24 2672 GGC (here starts the RS2 family)
                 >310 hp K24 2672 GGC
                 >320 hp K24 2672 GGC
                 >350 hp K24 2672 GGA 10.11 (S2 Rally)
                 >410 hp K26 3072 GD
                 >??? hp K26 3270 GXA (Not very efficient)
                 >450 hp K26 3472 HD
                 >??? hp K27 3470 MNA 9.11 (Pikes Peak)

                 >Oh! and one other thing regarding how tough the     
>turbos are:
                 >I can supply a pair of chips that will blow up your 
>stock turbo in 3 seconds
                 >or less.  You'll have way over 300 hp for those     
>seconds though.

                 >Ned
                 >http://www.IntendedAcceleration.com
 Notice the 300 max continuous for the stock K26, so the idea of that 
turbo maxing out at 1.9-2.0 bar is just not so, yes it would need a 
different intercooler, manifold, exhaust, etc., but the turbo could 
supply the air.  Also notice that the stock K24 maxes out at a lower HP, 
so I doubt that if absolute max power is the goal that a stock K24 turbo 
would help, it does spool faster, but at the limit can not supply as 
much air as a stock K26 at the limit.
-Matt Martinsen


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