Trans. Cooler Upgrade options...

[01001010]

Vehicle : 96 D1 with Auto Trans.

I'm looking to replace the now damaged coil that's used to cool the Trans oil.

Wondering if any of you have replaced with any aftermarket square/rectangular coolers with braided SS lines. Where have you placed them? What's the volume of the stock coils? I'm still lookin through the shop manual for specs.

I was thinkin I could place it within the fender, cut the fender some more (in addition to the cut for the snorkel and make a small cowl-style scoop, facing foward, with tight mesh to keep chucks of debris from gettin in there. I can shape the cut to be something SIMILAR to the new RRS vents on the sides, but something that flows with the lines of the D1

Any suggestions? Thoughts?

[01001010]

Ok, i just thought about the cons....Mud Ingestion!

[Discrover]

JC,

What I am planning on doing to mine is actually just adding and plumbing in another stock trans cooler...to double the capacity.

It is what was suggested to me..if you find and aftermarket please let me know.

[Adam in NYC USA]

Originally Posted by 01001010

Vehicle : 96 D1 with Auto Trans.

I'm looking to replace the now damaged coil that's used to cool the Trans oil.

Wondering if any of you have replaced with any aftermarket square/rectangular coolers with braided SS lines. Where have you placed them? What's the volume of the stock coils? I'm still lookin through the shop manual for specs.

Any suggestions? Thoughts?

Get one with the included electric fan if you are not going to mount in the front. There are quite a few aftermarket tranny coolers and most rockcrawlers put them right next to the tranny inside the chasis area but with the fan blasting on it.

If you were willing to and knew someone who does radiator work, you could find out the dimensions of the stock radiator and create a new radiator with an interior tranny cooler inside using the guts from one of those radiators with the oil cooler inside.

With a electric fan refit of the new uber-radiator, it would look really clean.

Adam in NYC

[Bene]

Originally Posted by Adam in NYC USA

If you were willing to and knew someone who does radiator work, you could find out the dimensions of the stock radiator and create a new radiator with an interior tranny cooler inside using the guts from one of those radiators with the oil cooler inside.
Adam in NYC

im not saying thats a bad idea, but i've heard horror stories of the internal radiator corroding and mixxing the oil with the coolant, thats not good. im pretty sure that was on a car from the 40s or 50s, so it probably wont be an issue, but its some thing to think about.

[Disco]

I had to fit an aftermarket trans cooler when I had an Intercooler fitted in front of the radiator. I located it behind the right handside front wheel. The air flow to it is via the hole in the plastic front bumper, where the fog lights are normally attached. To provide extra airflow during extremely hot weather, I mounted to it a radiator fan from a Freelander. You could have this thermostatically controlled, but I prefer to operate it manually. I hope this helps.

[01001010]

Disco, that is fantastic!!!

[Adam in NYC USA]

Originally Posted by Bene

im not saying thats a bad idea, but i've heard horror stories of the internal radiator corroding and mixxing the oil with the coolant, thats not good. im pretty sure that was on a car from the 40s or 50s, so it probably wont be an issue, but its some thing to think about.

I am also sure those "horror stories" did not come about because of the radiators, but because the author of the story had an engine that developed an internal crack and they ended up seeing that foam in oil and in the radiator, thinking it was the radiator

Just because the radiator looks "bad" on the inside does not mean it failed. A simple pressure test on the cooling system would have killed that story.

That is why I suggested he go with a radiator guy, who put together a two or even three layered radiator that would have the oil cooler inside and superior cooling.

One thing about stories with automotive problems; they always lay blame to anything other than the original owner's abuse, not however the current owner, of course.

Adam in NYC

That install in the wheel well looks excellent. I hope that the fan and the cooler has some physical protection for that unknown object in front of the Land Rover.

[01001010]

Ok, so im plannin out this long awaited swap. I'm thinking of mounting the new cooler with a puller fan on the inside of the front Passenger side fender. I would cut a vent of the appropriate size with wire mesh and possibly a small scoop to help direct the air.

[roverandom]

WAIT! Before you relocate the trans cooler consider what it has to do and when. Transmission oil is at its highest temp at low speed, high torque situations. If you wheel your Rover this is the condition your transmission works under all the time. That is why the factory mount it up front with a massive fan to move the air. I think mounting a cooler in the fender area even with a fan is just asking for trouble. If you want to relocate it to some place other than the front try to find a protected place along the frame rail with plenty of room to disipate the heat, also fit the largest cooler you can to make up for the change in location. If you wheel in lots of mud however this may not be good place either. Up front is the hands down best place for any type of cooler. Have you checked into a replacement rad or rad/cooler upgrade?

[01001010]

I've actually been interested (havent done any indepth research) but the GM Alum rads that Jegs sells seem like a pretty nice alternative to the Rover rad.

I was acually trying to find the volume of the trans cooler but couldnt find it anywhere in my workshop manual. I guess I can leave it up front and install one with a fan anyway...DIRECTLY behind the grille...I do, however, definitiley want to change out the lines to SS lines.

[roverandom]

Yep, for my money I would look closely at the alum unit. Remember with transmission oil its the more the merryer. Just go as big as you can fit in the Rover, more oil=cooler oil=happy tranny. Performance rads have low restriction cores (to keep your stock oil pump happy) and increased oil capacity. Plus, its alum! I like the SS lines also, way better than stock.