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I was thinking this cooler may be sufficient for trans fluid cooling for a 700. https://www.summitracing.com/parts/f...0618/overview/
I would plan on putting it horizontally, below the front of the radiator, where the removable fiberglass baffle is that sits above the the front license plate brackets. I would think it would get good air flow there, either air up from the road into the area behind the grill, or air down, in that position.
I suppose I could hook up a simple in-car U tube water manometer to the area in front of the radiator and go driving and see if the pressure is positive, or negative.
For those that have 700 auto trans, where and what did you use for trans cooling? I don't want to put any extra heat load on the radiator by placing the cooler in front of it.
Doug I installed a Bowtie overdrive 700 R4 four years ago in my wives 62 with a 340 HP. Installed a Dewitts radiator with a cooler and electric fans. The Overdrive in the 700 R4 greatly reduces the heat when the OD is used. I have no other cooler and the trans temp stays in the 150 to 160 range in the summer. I change the fluid almost every year and it is still nice and red with no burnt smell. A cooler is nice but don't know if it is required in this transmission. In Arizona it might be a good idea but here in Oregon it is not required. Hope this helps and good luck.
Billy
Not a 700 R4, but I mounted the trans cooler for my 4L80E on the passenger side frame rail. The fans are some from the computer world purchased off ebay. I did not want the cooler in front of the radiator and as close to the trans as possible. Here is a picture taken when under construction.
Doug I installed a Bowtie overdrive 700 R4 four years ago in my wives 62 with a 340 HP. Installed a Dewitts radiator with a cooler and electric fans. The Overdrive in the 700 R4 greatly reduces the heat when the OD is used. I have no other cooler and the trans temp stays in the 150 to 160 range in the summer. I change the fluid almost every year and it is still nice and red with no burnt smell. A cooler is nice but don't know if it is required in this transmission. In Arizona it might be a good idea but here in Oregon it is not required. Hope this helps and good luck.
Billy
Unless you are towing a heavy trailer, an additional cooler other than the one in the radiator is not necessary. Especially with an overdrive trans in normal driving, which 'locked up' does not have any slippage (like a normal non-od auto) and therefore, generates very little heat. I'd bolt it in, hook up the lines to the radiator cooler, and forget about it. Additional coolers are mainly used for trucks and towing.....the advantage of an in-tank radiator cooler (stock set-up) is that it helps bring the trans fluid to operating temp faster than an air cooler....which keeps wear down and efficiency up.
I already have a fairly expensive DeWitts aluminum resto radiator with NO trans cooling lines. I never paid any attention to whether PG equipped C1s have rads with trans cooler fittings.
I don't really want to replace it, thus my search for another cooler.
Factoid: where did you install and what did you use for a temp control switch?
I read that 150-170F is about optimum for trans fluid.
That looks like a fairly simple install. Is that a small spin on fluid filter I see? The cooler doesn't look very large, maybe it doesn't need to be.
I would be temped to put a very heavy 1/4" mesh screen over the bottom of the cooler, in that location,
As per an engine oil cooler i installed in a splash pan years ago.
Not a 700 R4, but I mounted the trans cooler for my 4L80E on the passenger side frame rail. The fans are some from the computer world purchased off ebay. I did not want the cooler in front of the radiator and as close to the trans as possible. Here is a picture taken when under construction.
Doug, in your link to Summit you will see on the right side a cooler sold by B&M. I believe they are made by DeRale, this type cooler is the same unit used by GM in a lot of the 1/2 ton trucks, 2 and 4 wd in the 2000 year ranges. They are availble in 3 or 4 sizes.
I like them because they are compact but do a great job cooling. The build design is similar to a modern aluminum radiator so more cooling per inch. I ran one in a 2001 Denali, 6.0L 4L65HD after I had a tranny failure. Ran it direct without the radiator but mounted it in front of the radiator. In Northern California with temp rages from 30 in winter to 105 in Summer it kept the tranny cool always and I towed with that vehicle. In a Corvette with very low weight I see no reason for a cooling fan if the cooler is large enough and exposed to some airflow.
That looks like a fairly simple install. Is that a small spin on fluid filter I see? The cooler doesn't look very large, maybe it doesn't need to be.
I would be temped to put a very heavy 1/4" mesh screen over the bottom of the cooler, in that location,
As per an engine oil cooler i installed in a splash pan years ago.
Doug
Yes, that is a small spin on filter and the brass fitting is for a temp sensor. I do have a screen on the bottom, just didn't have it when the picture was taken.
Charles
10-20-2019, 03:12 PM
Possible 700-R4 install
