Alright, does anyone have any ideas how I could make a cooling fan stay on for say 5-10 minutes after the engine's shut off...? I really want to do this. Preferably without getting an SES light, but we can't ask for everything.

Thanks people....

nothing....

Well a 12 volt timer wired in conjunction with a 'fan switch mod' should work fine?
Something like this:
http://www.arcade-electronics.com/cg...00104119848.c6
[I am not endorsing the product, or the site, just showing an example..]
Installed using the 'normally open' contacts in the ground wire on this diagram from shoebox site:
http://shbox.com/1/fan_sw_diagram1.jpg
That would allow you to select one or both fans, and the timer would 'time out' and disconnect the ground that the manual fan switch provides..
I haven't done this but this is what it would involve basically...
I wouldn't think a 94 would set an SES doing that either..

Yea, 94's are pretty forgiving for SES lights

Thanks a lot for that info. That would work perfectly for what I'm trying to do. However I can't quite put my finger on it, but the wiring to me seems like it would need a little reconfig. As soon as it dawns on me I'll post it up

What I was suggesting was to put the time switch in line [on the 'normally open' terminals] with the ground in the fan switch diagram[the black wire that has the antenna looking thing is the ground..]
put it in line in the ground wire before where it breaks for the 2 wires that are going to control one or 2[if a 2 fan relay setup]or low or hi [if it's a 3 relay fan setup]
The 2 leads out of the time switch are + and- to supply power to the actual timer..

Thinking more about it...
You would have to also probably rig a timer 'bypass' switch, to allow the fans to be run with the 'fan switch'and NOT on the timer?
Been at work all nite and tired here, but at least you got a start on it...

you're right, but I wouldn't need a timer 'bypass' switch because the unit should disable itself when switched power is supplied. We're deductive reasoning here, so don't take any of this wrong. Just learning. I'm not huge on electronics (circuit wise) but I grasp things pretty quickly....

But... I see what you're saying. If this switch was spliced into the shoebox fan switch it would run for 15 minutes everytime the switch is turned off? O man, I'm confusing myself now

Shoebox where are you with your infinte common sense? You even have to steer me back in line sometimes I'm running a road course down the 1/4 mile... Help

My thought was yes splice it into the gound wire on the 'fan switch mod' so that the fan s3witch will still allow you to select fan speed[or single dual fans]
then I was thinking you'd need a timer bypass switch to be able to run it WITHOUT the timer...

Further thought on this[ after sleeping some here]
I don't HAVE one of those timers to check it...
I was assuming[probably erroneoudsly!] by looking at the timer that the power leads power it[all the time] then the 3 terminals are:
NO
common
NC

And it looks like a little pot [entiometer] looking thing is a 'dial ' to adjust the timer period?
What I DONT see is a switch on it[on off] ?
Which would now lead me to believe that you would activate/deactivate' the timer by applying the 12v power to the timer power lead[s]
IF that's the case, then simply putting it inline with the ground on the fan switch, and using the NORMALLY OPEN terminals, then when you want it to 'time out' just turn the timer power switch on?[then it should run 15 min CLOSED, then OPEN? I would say?]
It looks like you'd still need a timer 'bypass' switch to run fans with the fan switch and NOT the timer..
What really would help is a better schematic on that timer..
I'll kick it around more here.. there may be an easier way that I am not seeing here..

What do you accomplish by cooling the fluid in the radiator when the engine is not running?

Hows that for common sense?

Nothing wrong with listening to Charlie-he has a pretty good brain.

I really have not read all the details in this post.

No point really, just doing it for coolness points. You shut off your car and it continues to run the fans for a few minutes. To me that sounds like a badass car. Plus in the pits it can't hurt to have a fan blowing to cool a bit.

My brother's Honda Prelude does that. Think it's still cool?

j/k

its really easy to do, and for about 3 dollars you could do it.

using a 555 timer and a relay.

Yea I'll be honest with you. I first encountered it on my friend's 240Z. Either way I still think its cool