<VV> GTech update

[N. Joseph Potts]

Is this device a railroad, or some other kind of RR? I've searched for a
descriptive noun, and RR seems to be the only candidate. Sounds a little
like a dynamometer, albeit a flakey one.

Joe Potts
Miami, Florida USA
1966 Corsa coupe 140hp 4-speed with A/C

-----Original Message-----
From: virtualvairs-bounces at corvair.org
[mailto:virtualvairs-bounces at corvair.org]On Behalf Of AeroNed at aol.com
Sent: Thursday, March 03, 2005 12:46 AM
To: fastvair at yahoogroups.com; virtualvairs at corvair.org
Subject: <VV> GTech update

I resently purchased a GTech RR and today I finally had the oppertunity to
try it out in my Corsa. This little device measures accereration and
calculates
 HP and torque.

Well, the results were very encourging. I have done some modifications to
the engine but never dreamed that what I did would result in what I saw on
the
GTech, 396 HP at 180 MPH!

Of course I'm somewhat suspisious of that run (although I know some that
would believe it because the instrumentation never lies). The other runs did
result in more realistic results, 80 to 94 HP. These figures are HP at the
wheels above what ever the losses due to rolling friction and drag are. To
determine these losses, a coast down test must be done. I did do one coast
down  test
from 70 MPH. I have to process this data, the old fashion way, by hand, to
get the HP. I also did some braking tests that I'll be comparing to test
I'll
do  after some brake mods (Kevlar shoes and braided steel lines).

Ned