Trans coolers: how big is too big?

[BBR]

I have seen folks running small AC condensers as trans coolers lol

Just wondered if you can get *too* big with a tranny cooler?

[squirrel]

Re: Trans coolers: how big is too big?

not if you run the trans fluid thru the radiator after the trans cooler....

[TC]

Re: Trans coolers: how big is too big?

not if you run the trans fluid thru the radiator after the trans cooler....

Yap that should warm it back up. ;)


On a side note Yank Converters says you don't need a extra trans cooler until you reach stalls of 3000 and above.

[JeffMcKC]

Re: Trans coolers: how big is too big?

If you driving in the stall most any can overheat, those a/c condencers are not very efficant, and block a lot of radiator the B&M plate cooler works well and some even hav there own fans so you can mount them a lot of places, the Radiator one works well it warms the fluid up in the winter quicker and 190 is just right in the summer for fluids in the trans, to cool like oil temp is not a good thing. I run my 6000 stall on the street with just a radiator cooler with the cooler made in it.

[BBR]

Re: Trans coolers: how big is too big?

Why would too cool be a bad thing? I mean we're not talking sending the fluid back at 32 degrees F .

[JeffMcKC]

Re: Trans coolers: how big is too big?

LOL I know sounds stupid, warm fluids have a diff vicosity, and thats what the leakage is set for, lube circuits and clearence is set to provide the proper restriction ( restriction sets pressure) and the correct "thinness" of the fluid is needed. Same with engine oil, I think this is one thing I know I hate, and I am geussing Scott does to when I am on the Dyno, is waiting for the engine and trans to warm up, the rear end warms up quick

[Mr4Speed]

Re: Trans coolers: how big is too big?

Shouldn't it get hot enough to boil the moisture out of it?

[DanStokes]

Re: Trans coolers: how big is too big?

I got a trans cooler from a V10 Ford (it's source will remain unspoken but it came out of a trash bin) and it's on the 'Stang. I'm not sure if it's too much but I'm positive it's enough - it's as big as some radiators. Seems to work OK but I never drive the car in cold weather (or at all, lately).

Dan

[urwurznitmahre]

Re: Trans coolers: how big is too big?

Why would too cool be a bad thing? I mean we're not talking sending the fluid back at 32 degrees F .

BECAUSE SHOCKING the parts with a different demp. hurts parts..
think of it like a iced glass.. now run hot water on it. it cracks..
same deal..only it takes a little more time

[squirrel]

Re: Trans coolers: how big is too big?

I think it has more to do with the oil being thin enough to flow everywhere it needs to...and that includes going thru orifices that are calibrated to make the car shift right with the oil at normal operating temp (hot)

[JeffMcKC]

Re: Trans coolers: how big is too big?

I think it has more to do with the oil being thin enough to flow everywhere it needs to...and that includes going thru orifices that are calibrated to make the car shift right with the oil at normal operating temp (hot)

Man, you said that so much better than me. LOL Mine come out weird every time my typing is so much slower than thoughts it gets random.

[BangShiftChad]

Re: Trans coolers: how big is too big?

Here is the funny thing. I have always said that you should run the biggest cooler possible. I still believe it. BUT....

The guys over at Stainless Steel Brakes and Jiffy Tite have come up with a transmission thermostat. Yep, it keeps the trans temp at the ideal temp. They say it gives much better mileage, ETs, improved shifts, etc. It's hard to argue with the numbers. I know Mike Jonas at SSBC and he is usually a standup guy about numbers.

http://www.ssbrakes.com/ssbc-products/tmax/

They claim up to 8% mileage increase, and Mike told me that 5% is almost impossible not to get. Their claim is that most cars run the trans too cold, and that for every 15 degrees that the trans fluid temp goes down, it gets twice as thick. Not good for mileage and shifts.

It sorta makes sense, considering that we have been running tractor hydraulic oil in place of trans fluid for years. This stuff is really thin, but lives forever and never gets killed. The trans loves it. Most stock and super stock guys run this. Plus, it's a ton cheaper than trans fluid.

[urwurznitmahre]

Re: Trans coolers: how big is too big?

Here is the funny thing. I have always said that you should run the biggest cooler possible. I still believe it. BUT....

The guys over at Stainless Steel Brakes and Jiffy Tite have come up with a transmission thermostat. Yep, it keeps the trans temp at the ideal temp. They say it gives much better mileage, ETs, improved shifts, etc. It's hard to argue with the numbers. I know Mike Jonas at SSBC and he is usually a standup guy about numbers.

http://www.ssbrakes.com/ssbc-products/tmax/

They claim up to 8% mileage increase, and Mike told me that 5% is almost impossible not to get. Their claim is that most cars run the trans too cold, and that for every 15 degrees that the trans fluid temp goes down, it gets twice as thick. Not good for mileage and shifts.

It sorta makes sense, considering that we have been running tractor hydraulic oil in place of trans fluid for years. This stuff is really thin, but lives forever and never gets killed. The trans loves it. Most stock and super stock guys run this. Plus, it's a ton cheaper than trans fluid.

but do the clutches love it??

[malc]

Re: Trans coolers: how big is too big?

I run a large B/M trans cooler with a 180? thermostat as I don?t run the fluid through my aluminum rad.
It?s the same type of thermostat I use for my engine oil cooler as well.


Engineered to handle the most extreme driving conditions.
Wind Tunnel tested for durability and accuracy

I don?t understand why it should be wind tunnel tested.

[CTX-SLPR]

Re: Trans coolers: how big is too big?

I'm very very close to running thermostats on both my oil and transmission coolers. I want to get the engine up to temperature as fast as possible but not cook the fluids. Even the turbo want's the right temp oil (It will be water cooled.)