Re: after-run modification/addition

["Graydon D. Stuckey" <graydon@apollo.kettering.edu>]

On Fri, 26 Jun 1998, Brett Dikeman wrote:

> On the turbo cars past about 86(I assume the UrQ's are similar), there is
> an after-run switch that activates and turns on a small can pump and the
> Stage 1 of the cooling fan.
> 
> I added a toggle switch, which I tie-wrapped to the
...
> In a quick test, with the engine at normal temp(tad left of the "center"
> mark) I managed to get temps down to a tad down from the "1/4" type mark,
> in about 6 minutes of after-run running+hood open.  Voltage afterwards was
> a bit above 12v on the gauge.
...
> If I wanted to get fancy, I could make up a circuit with a 555 timer and a
> solid-state relay to have the fan run for a set(well, adjustable) period of

Good idea.

> Also, you could, during the track run, leave the A/C on, but pull the relay
> for the clutch.  A sneaky way of getting the Stage 1 fan to run but not the
> compressor.

You would want to test this system out on the track, as I think the rad 
fan might consume almost as much hp as the AC compressor.

A great idea though for someone who tracks their cars, especially for the 
cooldown afterward.

Later,
Graydon D. Stuckey

"There's alot more to Jazz than just wrong notes"