Visit The Dirt Forum for More Information

Author Topic:   to fan or not to fan
Dirt Maniac

Total posts: 193
posted May 29, 2002 09:17 AM
Im curious, i cant get my engine to run over 170 at the end of a 15 lap race when i get on the track its at about 140, the fan is about 1/2 inch from the radiator without a shroud. how harmful would it be to just completely remove the fan so my engine will be closer to operating temp when i get out on the track.

Dirt Maniac

Total posts: 106
posted May 29, 2002 09:32 AM
I have seen guys do this in a pinch but they had to keep moving otherwise the car would heat up because there was no air coming through the radiator. I would try to find another way to get your temps up without removing the fan. In the past we have covered part of the front of the radiator with tape or something on a cold night to help keep the car warm.

Dirt Full Roller

Total posts: 65
posted May 29, 2002 11:02 AM
We had the same problem when we ran a late model years back the **** thing would not run in the heat race because it would only get to 170* , when we took the fan off it would run 220* .So we ended up running tape across the radiator to moniter the temp at 200 . We would pull tape or add tape according to the temp. of the night.

Dirt Full Roller

Total posts: 36
posted May 29, 2002 07:27 PM
What about leaning it up a little

devil wrench
Dirt Full Roller

Total posts: 51
posted May 29, 2002 09:19 PM
I'm with 6m on this one. Check the plugs and maybe lean it out a little.

Dirt Freak

Total posts: 333
posted May 29, 2002 09:51 PM UIN: 23443678
Do you run a t stat? I have used a 160 for the last 4 years and run around 180 to 190 all the time.

Dirt Roller

Total posts: 18
posted May 29, 2002 10:27 PM
We have been running a t stat forever too, and we have not had any problems (160 t-stat)

Dirt Full Roller

Total posts: 36
posted May 29, 2002 11:28 PM
Lean that baby out and get those two birds with one stone. More ponies and water temp. Just watch the plug so you don't go too far. my engine builder tells me that a fat alcohol motor is bad because the fuel is so abrasive that it wears much faster. I am shure i speld ALL-Co-haul rong abuv. Sorry

Dirt Freak

Total posts: 240
posted May 30, 2002 11:23 PM
I'll bet there is a lot of guys reading this that wish they had that problem. I bet the motor could stand to be a bit leaner too.

Dirt Maniac

Total posts: 121
posted June 04, 2002 06:51 PM
2nd2none-- I will send you about 30 degrees of our heat--we are running gas and still running about 240 degrees. we need to get rid of the heat..we've tried everything except the hoses from the intake to the water inlet.. later wheels

Dirt Maniac

Total posts: 193
posted June 04, 2002 08:27 PM
Can I damage my motor by racing it when it doesnt get warm enough? Its under 170 when I go out and might get up to 190 after the races. Should I use a thermostat?

Smith Racing Team

Dirt Full Roller

Total posts: 36
posted June 04, 2002 09:05 PM
Scoot, Never heard of hurting it unless it is so cold the oil thikness strips your pump drive. The biggest disadvantage is loss of power. Most believe that 220 is, I would rather run 170 to 190 and never worry about temp in a long race.

Wheels47, you say "still" when talking about gas. You do know alky runs much cooler than gas...right?

Back to the Archives