No Subject

[STEADIRIC@aol.com]

in multiple parts) about the gauge:  why is it 
>(reputed) to
>be inaccurate?  Is it a function of the sensor being substandard? Does the
>digital indicator/computer miscalculate the values it receives from the 
>sensor?
>Does the factory gauge accurately measure/display the pressure in the
"wrong"
>place in the manifold resulting in an accurate display of an inaccurate 
>pressure
>level?  Is it simply a matter of "When I change to a different gauge/sensor
>set-up, I get different readings.  Therefore the old gauge was wrong."?  Has
>anyone compared the factory gauge to a standard set a la the faucet in "My
>Cousin Vinny"---"I set the torque using the same torque wrench that 
>government
>inspectors use, that had been calibrated minutes before I used it, ..."

I do the "My Cousin Vinny Standard Faucet Torque Test" everday. I've got 
a really cool little Manifold pressure gauge that reads to 75 in/hg 
absolute out of some supercharged aircraft built by US instruments and it 
was STC'd before I installed it in my car, So I know it's accurate.  At 
Idle I'm pulling 13 in/hg Which is 6.4 psi or .426 bar, my dash gauge is 
showing .2 bar which equals 3 psi or 6 in/hg.  On the oppisite end (The 
fun end!) at 65 in/hg mainifold pressure which is 17.32 psi of boost my 
dash gauge is showing 1.7 maybe 1.8 bar which equals 10.5 to 12psi it 
SHOULD be reading 2.15 bar......  I think that the dash gauge is "Just" a 
little inaccurate!

Later!


Eric Fletcher
'87 5KCSTQIA2RSR2B

STEADIRIC@aol.com