Technical trans cooler under floor, 32 Ford roadster?

If I don't run the trans cooler lines through the radiator, anybody have a suggestion on a specific transmission cooler for under the floor?
Do I need an electric fan on it?

Thanks

 

been running my 32 with it on the floor board for 10 years with no problem. I used a larger style waffle cooler and don't tow anything. (700R4)

 

Make a sm scoop to guide the air through it .

 

Mine is under the floor also . If you think lots of air doesn’t move around it , hold your hand out the window at 40 mph

 

I just installed a Perma-cool brand and was very happy with the USA made quality.

 

Unless you are doing brake starts or pulling a trailer your transmission doesn't need much of a cooler. The ones in the radiator from the factory are mostly for heating up the ATF when it's below zero in the winter.

 

Just make sure the cooler is a dual pass.

 

I've used them in the past, I try to keep them close to the frame where there is good air flow. HRP

 

Mine has been on 30 plus years with a turbo 400. Has a very nice scoop intake on the passenger side.

 

I had one in my Model A. Just a flat, generic double pass mounted horizontally on the trans cross member.
40k miles with C4 trans.
100k miles with 700R4.
Never even thought twice about it during my 27 year ownership.

 

TC stall speed is important here. If the stall speed is close to, the same, or greater than the rpm's at cruising the trans oil is going to get hot and need optimum cooling.

For mounting under the floor boards I would go with this type of cooler, mounted on the frame rail:
https://www.flashpowerparts.com/flashpower-billet/594-aluminum-finned-transmission-coolers.html

 

On my deuces with automatic trans I use a B&M cooler along the frame rail and a Derale cooling pan. Never had any problems. I once had a deuce roadster with a 400 turbo and all I did was loop the line without a cooler. Drove it a long way with no problems, maybe I was just lucky?

 

I put one under an o/t van. Something to think about, nothing to compare it to, but I positioned the fins fore to aft.

 

I use a power steering cooler from a late model Hyundai under the floor of my Shoebox Ford. It works well and doesn't take up much space at all.

 

Something to think about ..A B&M style cooler mounted on the frame rail is probably a 100 +degrees cooler than a small cooler, in bottom tank of radiator that is already 200 degrees ...

 

Correct. In fact my tranny guy said that for a light hot rod all you need to do is get the fluid out of the tranny. My T had 80" of line looped along the frame, that all. The only time the tranny got hot was in a burnout exhibition at the Full Throttle Saloon. I got a little carried away and did about a 3" burnout on my cheater slicks. Needed a few cool evening miles to cool the ol girl down.

 

The trans fluid is like oil, you don't want it to cold.

 

Mine is at the bottom of the rad......seems to work just fine with my 700r4!

 

I wonder how many who are posting that their cooler works just fine actually have a trans oil temp gauge and know what the temp of the oil is; and where the sensor is located....

 

I know mines hot, with a 4200 stall convertor in it.

 

Just random info// My son came across the country in a 99 2500 big block Suburban pulling a trailer with a total weight of 16k lbs and the trans never got over 250. That was a 4L80E with the factory external cooler and the sending unit in the pan.

 

I have a pic of mine on in my album. old pic at that.

 

I almost bought this one in Parts For Sale just for possible future use.
https://www.jalopyjournal.com/forum...ns-cooler-nailhead-clecko-loc-pliers.1264785/
Looks like a nice cooler for the price.

 

That one is

 

On my 46 IHC KB-5 truck, the original radiator wasn't manufactured to accept modern day cooling lines for the TH-400 transmission. So I mounted the cooler down low under the radiator to get good airflow, I also encased it in a hardware cloth type of bubble cage, to deflect any rocks or road debris, it worked great.

 

I have a B&M cooler mounted under the floor behind transmission with a small scoop to direct air to it. I has not caused me a problem for 20 + years.

 

Any cooler, mounted almost anyplace out of the engine bay will give better cooling than what you get running through the tiny cooler built into radiators. And it doesn't need a fan at all.
I have two hotrods with trans coolers, both Hayden brand, and both laying flat horizontally under the cars. One is just a couple years old, but the other is 11 yrs. old, and doing great. I've always used external trans coolers for automatics, and always laying flat, with no fan.

 

I mounted mine under the passenger side floor. I made a set of brackets to mount it at an angle, rear lower than the front. I figured that would help the air flow through it instead of just over it. It's still hidden by the frame rail from the side.

 

A stone guard should be considered.

 

Thanks!

I ordered an 18"...you think that's adequate for a TH350 w/factory V8 convertor?