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Author Topic:   how to make a gas cooler?
rogracer2
Dirt Maniac

Total posts: 119
posted June 05, 2005 03:06 PM  
Any ideas on how to make a homemade gas cooler for the motor? Thinking about trying to build some sort of box over the gas line near the carb with ice in it!

racer17j
Dirt Forum Champ
Total posts: 5390
posted June 05, 2005 06:24 PM  
hey 17, where would you mount the cooler? seems like you would want it close to the carb. just wondering. sounds like a good idea. thanks, neil

firebird1964
Dirt Forum Racer

Total posts: 88
posted June 06, 2005 07:30 AM  
I have one sitting back by the fuel cell, using 1/2" alum fuel line. Putting a insulated sleeve on the line up to the engine compartment does great. Drops the temp of the fuel 18 degrees at the fuel pump, and some people say Im crazy but I feel horsepower increase. But hey, the fuel is cooler and thats what give you extra ponys. And unless they say you can't use one, I know you won't mind a little more power to rear wheels.

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Drive every lap like it's the last one of the race

97dirt
Dirt Forum Racer

Total posts: 94
posted June 06, 2005 07:38 AM  
To get the best results you need to run the cooler after the fuel leaves the fuelpump, the fuelpump soakes up alot of heat from the motor

racer17j
Dirt Forum Champ
Total posts: 5390
posted June 06, 2005 07:12 PM  
Use a hollowed out canister type fuel filter run the fuel line into it, on the inside use coiled metal line, fill the canister with dry ice and viola cooled fuel. Eddie

Footlead
Dirt Roller

Total posts: 24
posted June 10, 2005 07:59 PM  
Take a coffee can ,,,,get some copper tubing and a tubing bender..drill 2 holes in the can ,,one at the top one at the bottom, use the bender to roll the tubing and build it. You can insulate the can or put alot of tape on it. fill with ice and mount your homemade cooler after the fuel pump. Tried this and didn't seem to run any better,,plus remember you are putting this weight on the front of the car where you don't want it. Dry ice is ok and sometimes a pain to get,,regular ice works ok in a heat race but it will all melt and heat up during a feature race. my 2 cents

bubba0six
Dirt Maniac

Total posts: 146
posted June 10, 2005 09:08 PM  
How long does liquid nitrogen stay cold. I like the idea of the old canister type fuel filter, but i would try liquid nitrogen. a liquid will contact the coil better than the dry ice. be verrrrry careful with liquid nitrogen it can freeze a warm human finger to a solid block in less than a second

redneck racing
Dirt Forum Champ
Total posts: 860
posted June 13, 2005 11:40 AM  
Put dry ice in the fuel canister. Eddie

Burque
Dirt Forum Racer

Total posts: 98
posted June 13, 2005 10:25 PM  
Redneck,

Have you felt a difference in power using the dry ice?

redneck racing
Dirt Forum Champ
Total posts: 860
posted June 16, 2005 05:18 PM  
Ive never tied it, but this buddy of mine has he is a 7 time street stock champ so it must work(till you get caught) Eddie

D9Dave
Dirt Full Roller

Total posts: 43
posted July 16, 2005 11:25 PM  
bubba would the nitrogen freeze the fuel?

bubba0six
Dirt Maniac

Total posts: 146
posted July 17, 2005 12:14 PM  
I dont think it would, but i havent tried it either. If you pour it in after the car is cranked the fuel is moving, therefore harder to freeze.

theslowguy
Dirt Full Roller

Total posts: 30
posted August 03, 2005 07:29 PM  
the coffe can works best if you seal the holes with silicone and pour a 50/50 mix of water and rubbing alcohol in with the ice. the liquid comes in contact with the fuel lines for better heat transfer. if well insulated the can stays cold for about 45 mins on drag cars. should be about the same for circle track. just pack alot of crushed ice in there before you fill it with water. liquid nitrogen, you can get that at the local gas station on your way to the track right?

bubba0six
Dirt Maniac

Total posts: 146
posted August 04, 2005 10:35 PM  
quote:
Originally posted by theslowguy:
liquid nitrogen, you can get that at the local gas station on your way to the track right?

No but you dont get tie rod ends at the local gas station or ball joints or axels or brake shoes or pads or nitrogen or nearly any thing else for racing thats why you plan ahead you can buy it at your local welding supply store though where you buy a lot of stuff for racing they will even rent you a container to put it in, JUST LIKE NITROGEN. Besides all that I did say I hadent tried it and didnt know if it would work But it sounds good. I know you just wanted to be a smart a$$. right?

James Ott
Dirt Maniac

Total posts: 131
posted August 05, 2005 07:23 AM  
I use liquid nitrogen to shrink bushingins and other various parts all the time at work. I think it will turn rhe fuel into jelly at the least, if it doesn't freeze it solid. The stuff is dangerous to a degree because the temperature of liquid nitrogen is -321F. It will give you frost bite fast. Try dry ice way safer and cheaper.

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