I am very happy with this fan and controller set-up. It all works as well as I had hoped. But I do need a little electrical help in one area.

I swapped in a constant voltage limiter to drive the temp and gas guages. It puts out almost exactly 5v. But both guages read a little high.

They read in the 3/4 range when they should be in the 1/4 range. Not too far off, but I would like to see if I can get them down a little.

Is it advisable to put a resistor between the limiter and the dash to drop the voltage a little? Just enough to drop the needles about 1/2 the width of the guages.

If so, could I get some advise on where to start with a resistor as to sizing. We have a Radio Shack nearby. They don't have much else, but do have a good selection of resistors.

Any help here would be appreciated.

Thank you!


Master, again and still