Recalibrating gauges [2G]

[logic]

Does anyone have any good suggestions for recalibrating the gauge cluster after having removed the needles? I'm hoping for something a little more scientific than holding a sign out the window saying, "How fast am I going?"

Here's what I have so far:

• Tach is pretty easy, I can calibrate it with my knock LED (yay, stock 2g ECU boost dampening).
• Fuel is a snap; fill the tank.
• Boost...to be honest, I don't really care. It's not like it was accurate before.
• Oil pressure isn't too hard, I know roughly where it sits at idle.
• Temp is an easy one; when warmed up, it sits a hair below center.
• Speedo will probably involve following someone at 60 MPH and calibrating accordingly.

Is there a more accurate approach I could be taking with a few of these? I'm specifically worried about getting the tach, speedo, temp, and oil pressure as close to stock readings as possible.

Going another direction, are there shops that specialize in gauge calibration like this?

 

[98RedGs]

me and my friend went to our local police dept and asked a cop where the big BOX was that clocked people and told them why we were asking (this happened to me to so you know), so we went to it and went about 40 in 2nd gear and took the needle off...
then turned around and went back and got high enough to set it on cruise and then put the needle back on...
worked right eversince.

 

[dave99gst]

datalogger reads yer MPH / oil pressure /coolant temp

 

[logic]

Damn, that's the best idea I've heard so far.

(Now to figure out how to convince my other half that I need a pocketlogger...*grin*)

 

[Ekim4g63t]

OR if your cheap and its a gsx.....

your oil pressure with keys out of the ignition sits at 0.
set your tach after shes warmed up @ 775 rpm
speedo..go down the highway in 5th @ 3000 rpm and thats 65mph if you have the correct tire sizes on