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Topic Review (Newest First)
04-07-2011 04:31 AM
old yukon Well done Dr Todd, good Science!
04-07-2011 04:23 AM
SSedan64 You could Bypass the Radiator. If you bypass the Rad you will need a X-Large Cooler tho'.
With the newer Trans warm up is important, the Trans temp switch & ECM wont allow Lockup untill a certain fluid temp is reached. Could be a problem in cool/cold weather.

This is from PATC's site: http://www.transmissioncenter.net/700r4.htm
Transmission Cooling:
""You must have a transmission cooler in your radiator regardless of what someone has told you for the transmission to last. Auxiliary coolers are just that, in addition to. Water cools 32 times better (faster) than air always, period. In the case of air vs. water, there is no contest - water is way better. The transmission fluid comes directly from the torque converter at a much higher temperature than the water in your radiator and is cooled to the water temperature fast. Then it goes to the auxiliary cooler to be cooled far below the water temperature. If you don't need a cooler in your radiator why does GM spend all that money doing so? If you wanted to cool a red hot piece of steel fast would you stick it in water or air, see the point. Your transmission will run cooler with a lock-up converter. This is more important with stall speeds of 2000 RPM or higher.""

Personally, I always use both Coolers. Trans to Rad to Aux & back to Trans.
Todd
04-06-2011 12:43 PM
old yukon 10 years sounds good to me. Just fabbing up a bracket, to keep it away from the AC cooler, and all should be fine from there God willing.

Thanks for the feedback guys, its been helpful!
04-06-2011 12:20 PM
schovil69
Quote:
Originally Posted by old yukon
schovil69 how long have you had them on for ??

Also, have you had any issues with leaking?

Nebraska is also a bit cooler the Phoenix, long drives across the desert will be the real test i guess.

I have had my tranny cooler installed for just over 10 years now. I have never had a leak with it or any other problems.

It certainly does stay cooler longer here in Nebraska. We only have about three months of 90-100 degree weather with the humidity at 95%. I used to drive the car 2 hours to the track, race it for hours and drive home. Guess I did that for about three years before fuel mileage became an issue. The tranny cooler has certainly had a great workout with all that driving in the hot summers.
04-06-2011 10:35 AM
richard stewart 3rd Hi Old Yukon

I think you should bypass the in radiator factory cooler & just use the new one you have as a stand alone(I don't know what size cooler you bought, but I would have gotten the largest one that would fit).
When cruising through the desert w/ambient temps about 105* cooling the trans fluid w/air then bringing the trans fluid temp back up to whatever the water temp is around 190*-210*? seams counter productive.
Rich
04-06-2011 10:32 AM
dsraven
cooler mounts

I have seen that style of cooler mounted with the strap style of clamp. the ones that have a metal strap with rubber wrapped around them and they have holes for a bolt or screw to go through for mounting. they fully encapsulate and insulate whatever is in the clamp. you can get them at home depot or a hardware shop if not at the parts store. then just use 2 of those at each end, on the u shaped tubes of your cooler, and then some sort of a shim under the clamp mount to keep the cooler off the mounting surface so it doesn't rub. also, the parts store should be able to fix you up with a fitting that goes into the trans cooler of the rad and has a barbed hose fitting on the opposite end. or use a short piece of steel line that already has the flare on it. those are available at the parts store as well, in many different lengths. if you get the ones with the spring thing on the outside, the spring is used so when the tube is bent it doesn't kink. just push the spring together and then bend the tube. when you are done the spring goes back to it's original shape. if you talk to the tranny shop they would be able to tell you which line comes from the trans as hot fluid and which one goes back as cool fluid. then you could decide if you want the cooler before the rad cooler or after.
keep us posted
dsraven
04-06-2011 10:09 AM
old yukon schovil69 how long have you had them on for ??

Also, have you had any issues with leaking?

Nebraska is also a bit cooler the Phoenix, long drives across the desert will be the real test i guess.
04-06-2011 08:32 AM
schovil69 I have the same tranny cooler on my car. The zip ties work just fine as well as the supplied rubber hoser. I used the original tranny lines without modification by simply pushing the line fitting back enough to slip the hose on. The flare on the line works great with the rubber hose and hose clamp.
04-06-2011 12:30 AM
old yukon thanks guys for all the feedback.

I like those colored breaded lines. Are they standard braiding hoses?

I was thinking to use original lines as much as possible.something like this(see image):

- Leave hot intact
- get new line bent from Radiator out to cooler in
- get new line with adaption made to connect up cooler out to the old radiator out.

Then make a bracket to mount it to the front rail ( see image)
04-05-2011 06:18 PM
SSedan64 http://www.gnttype.org/techarea/images/Cooler.JPG

Some Info here also>> http://www.hotrodders.com/forum/does...ml#post1401530
04-05-2011 03:19 PM
dsraven
tranny cooler

the better tranny coolers are those that have a flange to mount them, fittings to screw into the rad cooler, hoses made for tranny fluid and related pressure, good gear clamps that won't cut the hose and also they will automatically byp**** when they are cold. i don't know what climate you drive in, but up here in Canada we gotta use the bypass style, plus they are way easier to mount. do you not have cooler lines (steel) from the existing trans that you would normally use for this? usually you just disconnect one of those lines at the rad and it goes to the cooler then comes back to the rad connection again. the cooler goes inline. the rubber hoses are just meant to be short flex lines to make the connection possible. check out a tranny repair shop, they can usually steer you straight on what size cooler and may have them in stock.
dsraven
04-05-2011 03:13 PM
malc Have a look at the B/M Cooler Tech Doc itŽll show you how to hook up the cooler.
04-05-2011 03:08 PM
Irelands child Those so-called cable ties are used to poke through the radiator core and hang it in front of it. The hose, clamps and so on are used to tie in the existing lines and either bypass that cooler in the radiator or hook it in series which is the "normal" way. I've installed several of these, and in series with the existing in-the-rad cooler. I've used the reinforced line with good results. I have NEVER used those attaching POS ties but have always made up some sort of bracket and hung the cooler from the radiator frame or something other reasonably solid in front of the radiator. Oh yeah - that hose - way too short. You need the correct reinforced stuff, not gas line.

Now, if you are starting out at the transmission, then I would make up fresh steel lines(1/4 or 5/16??), using the hose to make a loop under the radiator frame to the cooler.

Or. if you are well heeled financially, then take a look here; http://www.srbymichael.com/manufactu...shosekit.shtml

Or like mine:



Dave W
04-05-2011 03:02 PM
malc I wouldŽnt use the cable ties but I donŽt see any other way with that style of cooler, it has no mounting flanges.
YouŽll need more rubber hose than they have supplied as well to get the cooler in front of the rad.
Perma Cool do a mounting kit with plenty of hose, which in my case has held up well for many years.
04-05-2011 01:06 PM
old yukon
Whats the best way to install a tranny coolers?

Any experience installing an auxiliary tranny cooler.

I've never done it.

I bought a hayden 1404 heavy duty cooler. and I have some issues:

!. The cable ties to mount seem a bad way of mounting it

2. The straight rubber hose and hose clamps, also look problematic. 90 degree bend needed at tranny not present.

3. How Long will this rubber hose hold up ??

What the best way,

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