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Old 07-21-2005, 16:40   #1 (permalink)
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Oil Coolers.

What oil coolers are you guys running? After reading about oil temperatures in the XA Group C racecars, I think an oil cooler would be a very wise idea for when I head to the circuit with the new motor.

I was thinking of running a Perma-Cool kit.
http://www.perma-cool.com/Catalog/Cat_page07.html

Sandwich plate 181
http://www.perma-cool.com/Catalog/Cat_page28.html

Thermostat.
http://www.perma-cool.com/Catalog/Cat_page14.html
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Old 07-22-2005, 05:51   #2 (permalink)
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Thumbs up Re: Oil Coolers.

Quote:
Originally Posted by xbgs351
What oil coolers are you guys running? After reading about oil temperatures in the XA Group C racecars, I think an oil cooler would be a very wise idea for when I head to the circuit with the new motor.

I was thinking of running a Perma-Cool kit.
http://www.perma-cool.com/Catalog/Cat_page07.html

Sandwich plate 181
http://www.perma-cool.com/Catalog/Cat_page28.html

Thermostat.
http://www.perma-cool.com/Catalog/Cat_page14.html
Ok, I'll be the mug and reply to your post since no one else has. Probably because, like me, they don't run a oil cooler.

These are generally used by people who expect to expose their engines (or Transmissions) to prolonged heat.

If you are going to race your car at the circuit lap after lap and only have a std sump when you expect the oil will be subject to prolonged heat resulting in possible engine damage then fit a cooler.

If you are only likely to do a few laps at a time and/or have a large capacity sump its not likely you will need a cooler.

I think a large capacity winged sump with surge baffles would be a better invesment if you don't already have one

Good luck at the track
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Old 07-24-2005, 20:29   #3 (permalink)
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Re: Oil Coolers.

Quote:
Originally Posted by shaynet
Ok, I'll be the mug and reply to your post since no one else has. Probably because, like me, they don't run a oil cooler.

These are generally used by people who expect to expose their engines (or Transmissions) to prolonged heat.

If you are going to race your car at the circuit lap after lap and only have a std sump when you expect the oil will be subject to prolonged heat resulting in possible engine damage then fit a cooler.

If you are only likely to do a few laps at a time and/or have a large capacity sump its not likely you will need a cooler.

I think a large capacity winged sump with surge baffles would be a better invesment if you don't already have one

Good luck at the track
I already have a winged/gated/baffled/meshed sump.

At a track day you can be out on the track for 10-15 minutes. I would think this would be plenty of time for the oil to get hot.
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Old 07-27-2005, 16:34   #4 (permalink)
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Re: Oil Coolers.

I agree, a big sump is the best insurance you can buy for your motor for a number of reasons. Putting a cooler on it is a good idea but its one more thing to get damaged or leak.
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Old 07-27-2005, 17:02   #5 (permalink)
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Re: Oil Coolers.

I have a 450hp dunnydore (cough) that I circuit and drag race. I was losing oil pressure due to excessive heat - the oil was getting thinner the hotter it got, even though it was very heavy weight. I have the winged and baffled sump, but it is not enough when you start to really push things. I think I have the Davies Craig unit, but the permacool would be fine. The risk of it being damaged is neither here not there. A blown engine is worse.
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Old 07-28-2005, 03:17   #6 (permalink)
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Re: Oil Coolers.

Quote:
Originally Posted by conan
I have a 450hp dunnydore (cough) that I circuit and drag race. I was losing oil pressure due to excessive heat - the oil was getting thinner the hotter it got, even though it was very heavy weight. I have the winged and baffled sump, but it is not enough when you start to really push things. I think I have the Davies Craig unit, but the permacool would be fine. The risk of it being damaged is neither here not there. A blown engine is worse.

Have you experienced any problems with the installation?

Did the installation make a large degree of difference on the temperature gauge?

Why did you install the unit in the first instance?

I am very interested as I am currently playing with a track car. An interesting point is around a year ago at a Club Day at Winton the only people worried about blowing/cooking their automatic transmissions were the ones with temperature gauges fitted.
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Old 07-28-2005, 17:45   #7 (permalink)
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Re: Oil Coolers.

Would I expect a noticeable reduction in oil pressure running an oil cooler caused by the pressure drop across the cooler?
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Old 07-28-2005, 18:09   #8 (permalink)
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Re: Oil Coolers.

Quote:
Originally Posted by xbgs351
Would I expect a noticeable reduction in oil pressure running an oil cooler caused by the pressure drop across the cooler?
There maybe a handfull of PSI drop across the cooler (2-3psi), but that would be more than made up for the cooler oil temps.
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Old 07-28-2005, 22:01   #9 (permalink)
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Re: Oil Coolers.

Quote:
Originally Posted by GammaBoy
There maybe a handfull of PSI drop across the cooler (2-3psi), but that would be more than made up for the cooler oil temps.
Good because shimming the spring in the oil pump would be a fair amount of work.
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Old 08-04-2005, 06:33   #10 (permalink)
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Re: Oil Coolers.

The extra oil in a larger baffled sump will decrease oil temp, Mick Webb wrote about that in SM 302's & 351's a few years ago
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