Fans on or off when racing?
Thread Starter
TECH Veteran
iTrader: (4)
Joined: Nov 2001
Posts: 4,712
Likes: 0
From: Simi Valley, CA
Fans on or off when racing? I've been thinking of ways to get a bit more air to my engine off the line. Since I have FRA, do you guys think leaving the fans on during a race would help? I was thinking it might draw some of the hot air through the radiator and help get fresh colder air near the FRA opening. Does anyone race with the fans on?
Re: Fans on or off when racing? I did this last spring (not on purpose)
Car ran 12.17@111 (1.62) with fans off, then 12.22@111 (1.62) fans on.
12.18@111 (1.62) Fans off.
12.23@111 (1.63) Fans on.
got about 15 runs that day (hehe gotta love MIR <img border="0" title="" alt="[Wink]" src="gr_images/icons/wink.gif" /> ) .. all runs with the fans on were slower.
Not sure if was electrical of air related...
Car ran 12.17@111 (1.62) with fans off, then 12.22@111 (1.62) fans on.
12.18@111 (1.62) Fans off.
12.23@111 (1.63) Fans on.
got about 15 runs that day (hehe gotta love MIR <img border="0" title="" alt="[Wink]" src="gr_images/icons/wink.gif" /> ) .. all runs with the fans on were slower.
Not sure if was electrical of air related...
Re: Fans on or off when racing? That's interesting. Since I'm running the Meziere now, I've been thinking about electrical draws lately as well. I noticed friday night that the headlights were on (DRL) and I'm going to disable that feature. Who knows if it will help, but it can't hurt.
TECH Fanatic
Joined: Nov 2001
Posts: 1,055
Likes: 0
From: Baton Rouge, LA
Re: Fans on or off when racing? When I had my 95 ram air Formula I tried an alternator kill switch. Alot of local mustang owners claimed to pick up a tenth and a mph with this trick. But, when I tried it on my Formula the car would just cut out (read: it didnt work). I think the computer and ignition system just wasnt getting enough juice.
On my 2000 Z28 I do as much as possible to lighten the load on the electrical system. Such things as: radio off, fog lights off, fans off (hopefully), and unplugging the headlights. I've seen some people just lift the emergency brake a little to kill the headlights, but I would rather just unplug them <img border="0" title="" alt="[Smile]" src="gr_stretch.gif" />
On my 2000 Z28 I do as much as possible to lighten the load on the electrical system. Such things as: radio off, fog lights off, fans off (hopefully), and unplugging the headlights. I've seen some people just lift the emergency brake a little to kill the headlights, but I would rather just unplug them <img border="0" title="" alt="[Smile]" src="gr_stretch.gif" />
Re: Fans on or off when racing? With my headlight covers on, my headlights are worthless at night anyways. I should just remove them completely. The foglights have always been enough to get around on. I wonder what they weigh? The covers are illegal, so it wouldn't be any different than not having headlights at all. <img border="0" title="" alt="[Wink]" src="gr_images/icons/wink.gif" />
Re: Fans on or off when racing? I would think that in addition to the added electrical draw that it might make getting the air "through" the car more difficult. Like stacking up more air in front that the car has to push through instead of slice through.
I'm sure there is some fancy engineering terms that would sound better but this works at least in my head <img border="0" title="" alt="[Wink]" src="gr_images/icons/wink.gif" /> <img border="0" title="" alt="[Smile]" src="gr_stretch.gif" />
LAter <img border="0" title="" alt="[Big Grin]" src="gr_grin.gif" />
I'm sure there is some fancy engineering terms that would sound better but this works at least in my head <img border="0" title="" alt="[Wink]" src="gr_images/icons/wink.gif" /> <img border="0" title="" alt="[Smile]" src="gr_stretch.gif" />
LAter <img border="0" title="" alt="[Big Grin]" src="gr_grin.gif" />
Re: Fans on or off when racing? I have a fan switch, when i forget to turn them off, I usually run a tenth slower
and 1 mph slower.I assume it's because of the electrical draw.Those fans use alot of juice.
and 1 mph slower.I assume it's because of the electrical draw.Those fans use alot of juice.
Trending Topics
TECH Fanatic
Joined: Nov 2001
Posts: 1,055
Likes: 0
From: Baton Rouge, LA
Re: Fans on or off when racing? I say you want them off because of the draw on the cars electrical system. You know the altinator kill switch trick? Well running the fans should be opposite this, and in that, be BAD!
LS1 Tech Stories
The Best V8 Stories One Small Block at Time
Gas Monkey Built a 6-Wheel Ferrari Testarossa With a Corvette LT4 Engine
Verdad Gallardo
7 Most Reliable High-Performance Engines GM Has Ever Built
Verdad Gallardo
Amazing '71 Camaro Restomod Is Modern Muscle Car Under the Skin
Verdad Gallardo
6 Common C5 Corvette Failures and What's Involved In Repairing Them
Pouria Savadkouei
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph
Verdad Gallardo
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked
Pouria Savadkouei
Top 10 Most Powerful Chevy Trucks Ever Made!
Hennessey's New Supercharged Silverado ZR2 Has 700 HP
Verdad Gallardo