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Author Topic:   over heating
mikekuhlman
Dirt Full Roller

Total posts: 34
posted June 08, 2003 09:11 PM  
I,m running an 87 monte with a .060 over 350
during heat races it runs up to 200-210 degrees. during features 240-260. I have a 4 core truck rad. and shroud. 6 blade steel fan from speedway the fan runs 1/2 in 1/2 out of shroud I,ve tried running a gutted stat 160 stat and 180 stat and still runs hot. I,m also running stock pullys and using 50/50 antifreaze and water. any ideas would be great!!

racer17j
Dirt Forum Champ
Total posts: 5390
posted June 08, 2003 09:27 PM  
plugs look good, light brown. timing is set at 34 degrees total timing

dtd_93
Dirt Maniac

Total posts: 132
posted June 08, 2003 11:47 PM  
I am runnin a 357... 350 40 over and I have a 4 core rad that fits im malibu and am running the same 6 blade fan and I had to put a 160 thermostate in my car to get some heat in the motor wouldn't warm up..... I donno if the fact I run plain ol water in mine if that would make the diff or not.. but that is the only diff... what rpms are you turnin?? me 6500 is my max...

Trophy Chaser
Dirt Roller

Total posts: 5
posted June 09, 2003 12:49 AM  
Get rid of the antifreese, pulleys need to be one to one or as close as possible, you got to slow the water down, after market is not a bad one time investment, may save you lots of dough later. Get rid of the thermostat and use a restrictor plate instead. They have a three piece kit at any speed shop cheap, meaning three different size holes depending on what time of year it is. my first one i made out of sheet metal w/ a hole saw and drilled a 5/8 " hole in it. worked great! Also fuel is important, higher octanes require more volume(rejetting a carb), a lean motor will run hot regardless. Fuel burns, cools and lubricates. I've learned to much by mistake. good luck

racer2
Dirt Freak

Total posts: 352
posted June 09, 2003 08:01 AM  
i run 1:1 pullies, after market pump,with a 5/8 restricter.

doubletrouble
Dirt Forum Racer

Total posts: 82
posted June 09, 2003 08:14 AM  
Sounds alot like the problems we are having.Was planning on getting the same fan with an adapter to get it closer to the raditor,then it came to me.....the raditor cap???? We were running a chrome 'dress up' cap,I think its like 12lb,no wonder we were throwing so much water into the overflow,It should be a cap around 24 lbs.Hope this experience is helpful to others

Deak-Jr
Dirt Forum Racer

Total posts: 81
posted June 09, 2003 08:14 AM  
We're still getting hot as well. Ran 210 in the heat for the first few laps, then she started climbing again. Was 230 and climbing on the last lap ....

We run a 355 w/a 3-core stock radiator, 6-blade steel fan, stock pump, gutted thermostat, straight water with a small amount of pump lube. Gonna try a thermostat back in (might be moving too fast with gutted thermostat); if that doesn't help, maybe another pump. If THAT doesn't work, we're afraid we might be letting air in (and water out) through a crack somewhere. Owch.

avila
Dirt Freak

Total posts: 217
posted June 09, 2003 10:40 AM  
what happens if the car is cold, and you start it up and let it idle. does the temp
keep climbing or does it level off at some
point?

Deak-Jr
Dirt Forum Racer

Total posts: 81
posted June 09, 2003 11:19 AM  
The car would idle in the driveway at around 150 all day long. Just under power does it start to climb. In our feature, it had started to rain so I wasn't able to maintain the RPMs much at all. Went several laps around 210 before it started getting hot. In the heat, though, I was on it from the get go and it reached 225 & climbing after about 3 or 4 laps.

mikekuhlman
Dirt Full Roller

Total posts: 34
posted June 09, 2003 06:25 PM  
when packing the track or just idleing the temp stay at whatever stat I had in, when I had a gutted stat it stayed around 150. I,m only running 5300-5500rpm's when racing. I was told I shouldn't need 1 to 1 pullys at that rpm. I am going to try straight water and 22lbs. cap this weekend. any other ideas would still be helpful. thanks

66jj
Dirt Forum Champ
Total posts: 823
posted June 09, 2003 07:50 PM  
run distilled water only..... it works guaranteed.


told a friend he went from 220-230 last week to 190 all night.only change he made.....

sitting he would get to 200 now it stays at 160 and will not warm up.

jeff joldersma

mikekuhlman
Dirt Full Roller

Total posts: 34
posted June 09, 2003 11:33 PM  
distilled water? I was told to try that once by a friend along with water wetter. I think I'll try that. thanks for the tip I,ll let you know if it works.

atlapp
Dirt Roller

Total posts: 8
posted June 10, 2003 06:44 AM  
we had this exact same problem, use water wetter or some other cooling product, also your pulley ratio may be to much(moving water to fast). hope these tips help

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istock59
Dirt Forum Champ
Total posts: 501
posted June 10, 2003 10:26 AM  
So about how many gallons of distilled water does an "average" system hold? I assume that you want to get as-much-as-possible of the tap water out first...

66jj
Dirt Forum Champ
Total posts: 823
posted June 10, 2003 07:10 PM  
pull the plugs in the side of the block and drain out all tap water.

its cheap buy 10 gallons and take extras if you need to fill at the track.


jj

wizzard
Dirt Freak

Total posts: 306
posted June 10, 2003 08:48 PM  
check the rad.is it pluged or part way pluged.some of the used rad's we find if they've been sitin without antifreeze or water in them all kinds of stuff gets in there and you put water in and it go's strat to the cores and blocks them off

GO 24
Dirt Freak

Total posts: 366
posted June 12, 2003 01:45 PM  
I'd try distilled water w/Water Wetter, a 5/8th restrictor, the reduction pulley's to slow the pump down, and get an aluminum hi-volume pump---those stock pumps will cavitate due to the higher (how often do we run a street car up to 5500rpms?) revs. More times than not it's a combination of things when it comes to cooling, I'll agree with 66jj to a point, I've seen distilled water bring one down 10 to 15 degrees but when he drained the block there was alot of crap in it, Water Wetter maybe worth another 5 or so, pulley's & pumps will have the biggest effects. Hope that helps!

tutter069
Dirt Newbie

Total posts: 4
posted June 14, 2003 09:23 AM  
you might try runing a termostat with the center knocked out(thats what i run)and you might need to change the jets in your carb,dont know what carb your running but some of your racing buddies im sure could advise you on the right jet for the set up your running!!

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Bullet Bob Bomber#51
Happy Motoring!!!!

mikekuhlman
Dirt Full Roller

Total posts: 34
posted June 16, 2003 12:27 PM  
racing sunday night went well, I used distilled water, high flow 160 stat, and a 22-24 lbs rad. cap. car never went past 190 and this was the hotest day yet. I even took the checkered flag in the feature. thanks for all the help.

66jj
Dirt Forum Champ
Total posts: 823
posted June 16, 2003 09:32 PM  
glad it worked

distilled water works spead it on and post it when someone asks, cus i have posted it at least 15 times....

Jeff Joldersma

mikekuhlman
Dirt Full Roller

Total posts: 34
posted June 16, 2003 11:02 PM  
I'll do that. Thanks again!!

66jj
Dirt Forum Champ
Total posts: 823
posted June 17, 2003 04:41 PM  
you bet, I see you posted it on another post allready good job!!!

sure a cheap fix.

jj

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