Ok guys i have a project car and i need some help sorting some things out. I have a 92 240sx that im doing a GM LS V8 swap on. I got a steal of a deal on a radiator but it doesn't have provisions for a auto trans. My question is what side or how big does the trans cooler need to be? The bumper im using has two large holes in the lower bumper for air flow.. What do you think?

Thanks

 

Bm 70264 is a common one but the 70274 is huge and the last cooler u will ever need its what i use

 

Bump anyother thoughts?

 

I would figure out what will fit and get the biggest one you can. The bigger the cooler the better.

 

Get the biggest one you can fit.

 

you should use the flat blade cooler, theyre more efficient.. Fluidyne makes a nice one and you can get them on ebay for about $45 shipped... Im putting in my new built tranny with stall next weekend and this is the cooler Ill be using... the sweet spot is 200degrees in the pan... believe it or not, bigger is NOT always better...

 

Unless you're running a high stall you don't need a monstrous cooler. A medium-sized one will be fine. Focus more on finding one that fits well and gets good airflow.

Both the plate style and tube-and-fin style do well. Plate is a little heavier and cools a little better, allowing you to run a slightly smaller cooler. Tube and fin is a little lighter, usually less expensive, and comes in a wide variety of shapes and sizes.

 

I have both of these running in parallel....B&M 70264 and a 70274....one of the right, one on the left. I run COOOOOL tranny temps. Both are suspended out in front of my radiator, not touching it. They get constant ram air.

Here's a picture of my passengers side one.

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Umm i'll have to think about maybe moving it to another area that still gets air..

 

As much as I don't like it, you can use wire ties to attach the cooler to the front of the radiator.