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Old 10-06-2004, 06:31 PM   #19
luspeed
Scooby Newbie
 
Member#: 65120
Join Date: Jun 2004
Chapter/Region: SCIC
Location: SoCal
Vehicle:
2005 EJ257 Hybrid
OBP

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Quote:
Originally Posted by Soon2Bgreat
You got two tunes on two different days a week apart. Sorry...i'm taking this with a big grain of salt.
Yes the tunes were done on different days. And it's true that dyno done on a different days, with the same car, on the same dyno, will yield different results. Still if you look at the difference in the rpms at which I made peak tq and hp, there's no denying that the div w/g helped the efficiency of the turbo which led to the gains:

Flat plate
229 hp @ 5929 rpms
224.3 ft-lb tq @ 4056 rpms
vs
Div W/G
241.7 hp @ 6614 rpms
234.1 ft-lb tq @ 4150rpms

It's obvious that the flat plate design is simply more restrictive.
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