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Re: GTech as a testing device
MSD must gum up the sound signal but there IS a tach wire output. The last
I messed with streetdyno demo it had a hard time interperating the noise
out. Has the circuit been enhanced? I'd like to get one (or partial) of
your WAV files if you dont mind - to see how clean of a signal you got.
Thanks!
----- Original Message -----
From: Rex Weatherford <rexweatherford@home.com>
To: <gmecm@diy-efi.org>
Cc: <wd0fyf@mpks.net>
Sent: Monday, October 02, 2000 10:56 AM
Subject: Re: GTech as a testing device
> > I haven't tried it, but you might check out StreetDyno.
> >
> > http://www.geocities.com/MotorCity/Downs/5837/StreetDyno.html
> >
> > later,
> > Gerald Pelnar
> > wd0fyf@mpks.net
> > http://www.mpks.net/homepage/wd0fyf/
> > McPherson, KS
>
>
> I've used it and found it to be another useful tool. It isn't as precise
as
> a good inertial dyno because it has more mass to move (the car). The HP
and
> TQ curves on my car are similar with SD just with slight variations in the
> details and RPM peaks (very slight). I use it as a tool to check between
> modifications, not as an absolute HP rating. (Hope that doesn't sound
> misleading) However when I used the dynojet results to fine tune the SD
HP
> and TQ numbers (with weight and no drivetrain loss) the numbers are very
> consistent with each other.
>
> I definitely think it is worth a try. Some cars are easier to get signals
> off then others. My Quad4 has no plug wires or coil wire. I use a direct
> signal on the dash that controls the tach in the dash. The signal comes
> from the ECM....
>
> Works GREAT and the signal is strong and clean. I use a camcorder to
record
> the audio. I could share a lot of my runs if anyone is interested.
>
> Rex
> 92 Beretta GTZ Quad4/5-speed 14.8@92 MPH
> http://www.beretta.net
>
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