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Author Topic:   Oil Temp.
dirtracer50
Dirt Full Roller

Total posts: 42
posted February 24, 2003 09:29 PM
I'm installing a oil temp gauge in my car for the first time this year. My question is what kind of temp should I expect. I've heard that maybe the oil will be 20-30 degrees hotter than your water temp. I figured eventually I will learn what temp it runs at and know there is a problem if it gets much hotter. Just wondering what to expect.

sdhnc29
Dirt Freak

Total posts: 467
posted February 24, 2003 10:26 PM
If your using a water/oil heat exchanger , you can expect the oil temp to be within 10-20 degree's of your water temp . If your not using a heat exchanger , then it's not uncommon to see 40-50 degree higher oil temp than water temp .

Seve

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Hendren Racing Engines
Rutherfordton , NC
(828)286-0780

PB II
Dirt Roller

Total posts: 21
posted March 03, 2003 03:18 PM
Where and how are you going to install the sensor? I have the gauge also and have not figured out a good way to hook it up to the system. Thinking of putting a bung on the pan. Anyone have a good suggestion.

dirtracer50
Dirt Full Roller

Total posts: 42
posted March 05, 2003 10:29 PM
I am planning the same setup you described. Welding a bung in the oil pan and screwing the fitting in. I'm not so sure that I need the oil temp gauge but I'm curious what I'm going to find.

r19v
Dirt Roller

Total posts: 19
posted March 06, 2003 12:43 AM
From my own personal experience. Others may be different. On the average dirt track stock car that runs 220 water temp or more, what you will see on the oil temp gauge will scare you to death. It will generally peg out a 270 degree oil temp gauge. I can't speak to a heat exchanger, I have never used one. It has been said, and I agree "the only guys that don't have a oil temp problem are the ones that don't run a oil temp gauge".

[This message has been edited by r19v (edited March 06, 2003).]

66jj
Dirt Freak

Total posts: 352
posted March 06, 2003 01:57 AM
i weld a steel fitting in pan, and have tried them everywhere, rs, ls, etc. because it allways pegged my gauge. i went synthetic and was just under pegged 265 or so..

i added a heat exchanger water to oil, remote unit, and oil temp was 220. water was 180-195 as normal. FLUIDINE REMOTE UNIT.

I LOST OIL PICK UP TUBE SECOND RACE WITH OIL COOLER, AND FINISHED 100 LAP MAIN, I TOOK OUT THE MAIN BRGS, I COULD FEEL IT THE LAST 20 LAPS, BUT THE OIL TEMP NEVER ROSE ABOVE 240, I SWEAR, I DONT THINK ILL EVER RACE A HOBBY MOTOR EVEN WITHOUT A HEAT EXCHANGER...


outlawstock17
Dirt Forum Champ
Total posts: 620
posted March 06, 2003 07:19 AM
i agree 66jj. i'll never race again without an oil cooler. before i started using a cooler, i was noticing the paper label on my mobil 1 filter was cracking after a few nights of racing. i borrowed a buddies infrared pyrometer and pointed it at the oil pan after a mid-summer "A" feature. OMG! it was well over 300 degrees! the next week i had a cooler on it and stayed around 240.

mo6racing
Dirt Newbie

Total posts: 3
posted March 12, 2003 08:01 PM
I had the same problem with high oil temperature on a 351w 2bbl on gas. I tried a big oil cooler in front of the radiator. I didn't notice enough of a differance for the exta cost and plumbing. Sounds like a heat exchanger might be the way to go.

Pickles
Dirt Maniac

Total posts: 144
posted March 14, 2003 07:01 PM
Anybody using a oil cooler mounted in the back half of the car? Summit has one with it's own fan. I was thinking of mounting it sideways (edge towards front of car) to reduce damage from dirt. Thanks for any help.

outlawstock17
Dirt Forum Champ
Total posts: 620
posted March 15, 2003 01:39 AM
mo6, exactly. my engine is a 393 stroker windsor. the big main journals and rod journals are strong as heck but they heat up the oil.

pickles, you want to keep the oil cooler as close to the engine as possible and avoid any 90 degree fittings if at all possible. the farther from the engine the cooler is the harder it is for the pump to move the oil. keep the lines short and sweet with very few bends.

anybody need an oil cooler set up for a ford? i have a complete unit off a police car for $100 + shipping. adapter, lines, fittings and cooler.

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