[matt1970pon]

I'm throwing around the idea. Are they good or is it a waste of money? My car is a 1970 lemans sport 400 with a 4 core dessert cool radiator in it but if I sit for awhile the car gets hot. Would this help?

[WARPed]

I doubt that there would be any measurable difference with an oil cooler.

[68gtoMN]

Does the question pertain to running temperature or what is good for the life of the oil and the engine?

[firechicken]

My experience with an oil cooler was no help to coolant temps but came with an 8 psi loss of oil pressure. I used a sandwich adapter at the filter and -8 lines to the cooler. Took much longer for oil to get up to temp. I ran it for 1 year and then removed it with no change to coolant operating temps.
I'm sure others have had success with them though.

[lust4speed]

I spent a small fortune on the oil cooler and stainless lines, and it is now sitting on a shelf in the garage. Also experienced a drop in oil pressure, but I'd round up to a full 10 PSI down. The oil cooler was 9x15 and I had two large B&M stack coolers for the trans and the A/C condenser the fan was having to pull through. I was having problems with cooling, and on a hunch I removed the engine oil cooler and one of the trans coolers. The additional air flow through the radiator dropped engine temps from 195 down to 180 thermostat in the hot summer months. I'd rather not even think about the low oil temps during the winter months with the cooler.

[Schurkey]

If you haven't installed an oil temperature gauge so that you KNOW the oil is too hot, you're crazy to install an oil cooler.

[roadrage david]

Oil coolers for transmissions specially od transmissions like the 2004r ore the th700r4 are a must when doing lots and lots of high speed highway miles in summer with high performance high torque cars. heat kills them. same gose for engine oils in the same configuration.

[PLAY400]

Thought the low oil pressure was because of under sized components.

I block filled my 462 to the bottom of the middle frost plug and from what I have been reading now need an oil cooler. I found an old sandwich 1 in the shop from an old Ford FE with 5/8 pipe fittings, pressure relief valve to short circuit the flow directly to the filter when high/cold. Intent is to use 10an fittings and 3/4" line. Going to have to make a post in the race section to find out the best way to tie things together.

[ho428]

I run a 350 and have a Canton 7 qt pan and remote filter plumbed with -10 lines. After running around 25 track miles the oil temp gets up to 240+ but I'm shifting at 5500 and below, once I start getting into 6500+ with my new build I'm sure the oil temps will go even higher, so I'll have to add a cooler. My water temp stays around 180-190

A buddy runs a 351W which has 3" mains and his oil was hitting 300 degrees at similar RPMs until he added a cooler, but we're racing these engines.

For a street car I don't think you'll sustain enough crank speed to drive the temps up real high.

[Schurkey]

Originally Posted by roadrage david

Oil coolers for transmissions specially od transmissions like the 2004r ore the th700r4 are a must when doing lots and lots of high speed highway miles in summer with high performance high torque cars. heat kills them.

The main heat-producing element in a transmission is the torque converter; if the converter is locked; it adds almost no heat to the fluid.

What you're saying would be correct if the converter isn't locked at "high speed".

[firechicken]

I'll add to my previous post...
I'm now running 455 block filled half way up water pump holes. Coolant temp never goes over 180 and oil temps see max 220 in 100+ deg weather during sustained high speed driving/hill climbing. Typically the oil runs at 180 also in cooler weather.
Don't forget this is a twin turbo engine with a lot of extra oil heat added by the turbos.

[lust4speed]

When dyno testing my drag engine many years ago, the shop owner simply placed my oil cooler in a five gallon bucket of water. After several pulls over 6,500 RPM, that bucket looked like a crazed cauldron of boiling, frothing water. Really freaky how quickly the oil builds up heat (but water does boil at 206° at our altitude). I decided that I would never have that many back-to-back runs at the strip, and was actually having more problems getting heat into the engine before the runs - so the cooler came out.

So both coolers are now sitting on the shelf - the one from the drag car and the one from the cruiser. If I could find a remote place to mount the cruiser oil cooler with a seperate fan, I would put it back in and then control when it is needed by a fan switch.