Get a chance to hot-lap at the drag strip? Hate paying that horsepower penalty when the coolant temp soars? There is a work-around short of a fan switch or tuning the PCM.

All it take is a 6 inch piece of wire and a couple minutes to do the set up the first time. After that about two minutes each time you go to the track. Helpful in the summertime too; keeps the engine temps in the range for good power.

I put up a page at my site with a how-to for turning on the fans without tuning or a switch.

Here is a link: C5 Fan Trick.

Ranger

 

Thanks Ranger. As always; great information. I wish I had know this bit of information when my car was stock. I would have made quite a few more passes instead of sitting around waiting for my car to cool down.

 

Thanks for the info!!

 

Cool trick ranger. Thanks for the info!

 

Threads like this is why I'm a member of LS1tech.com

Thanks.

 

nice work ranger.

 

my fans come on at 180 and 190 respectively, also have the Meziere ewp with LG's g2 supercool radiator. I haven't run into a situation yet where I would need anymore cooling. What temps do you suggest to be at when getting ready to run the 1/4 ??

 

My C5Z06s in stock and CAI-only form produced best acceleration at a coolant temp of 190-194.

For example, hot-lapping the 2002 Z06 on DRs with the Fan Trick on and the coolant at a consistent 194, it ran 11.53, 11.57, 11.58 in less than 15 minutes.

The point of the Fan Trick is that it doesn't require tuning or a switch; it costs one 6-inch piece of wire and a couple minutes to set up.

Ranger

 

Good info! Wonder if it will work with C6?

And if you install a switch in that wire you could turn it off and on.

 

all you are doing is jumping the relay, so yes it should work the same.
But your relay on the C6 might not be in the same spot or look the same.

 

The C6 has a single fan that is controlled by a rheostat attached to it. The rheostat receives a variable voltage that governs percent of max it is directed to run at.

I've found no easy way to trick the fan on, as I did on the C5.

If someone knows of a way without tuning or an add-on module, please post up.

Ranger

 

I asked about temps because my car was at 155 or so when I launched and only 180 when I returned to the line up. Thanks for the info.

 

Good info. Thanks for sharing it

Keith

 

Thanks Ranger. I think I might just make this one a permanent thing and operate off of my nitrous switch via a relay. That way, when I'm at the track and flip on the first "ready" switch of the N20, it will boot up my fans. Cool digs.