External oil cooler, are you running one?

[stuntman]

I run the SoS oil cooler and campaign the car in open road racing events. At an average speed of 163 mph for 90 miles in the desert, the max oil temp was 251 degrees. In last Sunday's Nevada Open Road Challenge, there was a 40 mph headwind and cooler ambients, and the oil temperature max'ed out at 220 degrees. I'm a happy camper on that front.

Where do you measure your temps?

 

[Tom King]

Temp sensor is after the oil cooler, tapped in to the cooler. Not an ideal location, but it provides some consistency if not absolute accuracy.

 

[stuntman]

Temp sensor is after the oil cooler, tapped in to the cooler. Not an ideal location, but it provides some consistency if not absolute accuracy.

Post cooler: 250*F + temp delta of cooler efficiency = actual oil temp. You might be 275*+.

 

[Tom King]

Billy, I think you're right on. When I had a similar-sized transaxle cooler that I could turn on and off, I would see a 25-degree drop in transaxle oil temperature when I turned the cooler on in steady state conditions. Therefore, I reckon the oil cooler is providing a similar 25-degree reduction in oil temperature, so the max temp inside the sump is likely to be 275 when my gauge reads 250. In my events, I'm glad to keep oil temps and transaxle temps below 300. Shad has replaced the transaxle cooler with a more efficient one now, and the temperatures there are even lower. But the SoS oil cooler seems to be doing its job. The oil temperature reaches steady state after about 20 miles of the 90-mile course in Nevada. In Mexico, with shorter stages, the oil temps never got over 220.

 

[ryneen]

bumping an old thread :smile:

Ryneen, follow up on Billy's question...can I ask where do you have your oil temp sensor mounted? I also like Autowave's install via the side vent. Do you have the older side engine bay fan still installed? If so, is that what provides air flow circulation? Do you happen to know who makes the heat exchanger? Is that an Autowave kit? Sorry for all the Q's but it's top on my must mod list right now. Any insight is appreciated!

Sorry for the delayed reply. My temp sensor is mounted in the bottom of the pan. I don't know who makes the heat exchanger as Autowave did the whole thing. Please call Shaine at Autowave for details at (714) 841-3075.

I still have the engine bay fan installed, but I am certain that it does little to nothing for the cooling. All of the cooling is done by air entering the side vent at speed.

 

[MetalSpikeRacing]

This is how my cooler looks now, I am still working on its shroud :

 

[Coz]

Quick and nice temps Tom.
Nicely done.
Do you know Dennis Antenucci ?
Drives a deTomaso Pantera.

 

[Coz]

What are you going to shield it with from track debris ?

This is how my cooler looks now, I am still working on its shroud :

 

[MetalSpikeRacing]

I am making an aluminum shroud/shield, that will protect it.

-MSR

 

[Coz]

Be great as a flat bottom from the axles back to the splitter.

I am making an aluminum shroud/shield, that will protect it.

-MSR

 

[MetalSpikeRacing]

You right. I have the taitec diffuser, maybe I can attach some nice abs plastic panel to it.

 

[CL65 Captain]

You right. I have the taitec diffuser, maybe I can attach some nice abs plastic panel to it.

Don't use ABS - heat. :frown:

User Alumilite. Alumalite is a strong, 2-sided, aluminum composite panel with a high density, corrugated polyallomer (CPA) core that will not swell, wick water, corrode, rot, or delaminate due to prolonged water exposure.

http://harborsales.net/tabid/130/Default.aspx?ProductTypeId=103&ProductFilter4=Alumalite#Product

 

[MetalSpikeRacing]

Wow awesome, I am assuming you've may of used it, what thickness would optimal, after a quick search I found a couple guys making front diffusers out of it too.

Thanks for the link,

-MSR

Don't use ABS - heat. :frown:

User Alumilite. Alumalite is a strong, 2-sided, aluminum composite panel with a high density, corrugated polyallomer (CPA) core that will not swell, wick water, corrode, rot, or delaminate due to prolonged water exposure.

http://harborsales.net/tabid/130/Default.aspx?ProductTypeId=103&ProductFilter4=Alumalite#Product