CK5
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On your transmission, do you have a lockup torque converter? I know with my 700r4 and the 4l80e, as soon as the torque converter will lock the trans temps drop quick. One of my favorite things about the 454 is it has the grunt to pull with the torque converter locked up. Even neater yet, the 4l80e controller will lock the torque converter offroading. I can program it to lock sooner than you normally would on the highway.

With the 700r4, I had the lockup set up on a switch so I could lock it up more.
 
How did you bend the dimple plate?

rocks, big fck'n rocks making contact with the tubes bending them in/up.

On your transmission, do you have a lockup torque converter? I know with my 700r4 and the 4l80e, as soon as the torque converter will lock the trans temps drop quick. One of my favorite things about the 454 is it has the grunt to pull with the torque converter locked up. Even neater yet, the 4l80e controller will lock the torque converter offroading. I can program it to lock sooner than you normally would on the highway.

With the 700r4, I had the lockup set up on a switch so I could lock it up more.

no idea what converter I have, had a friend build it that owns a shop and he knew what it was going to be used for. He's actually a wheeler too. I can be in 4wd/1st gear all day and it stays at 180 however if I'm grunting up a hill in partial throttle 2k rpms, third or 2nd gear it starts to slowly heat up to 220 (pan temp). I have the trans lines routed through the radiator trans cooler, then through an auxiliary Derale with a fan and then back to the trans. While driving home from the rubicon a couple weeks ago I remembered that I routed the -8AN trans lines in/out of the trans through one tight heat sleeve so I'm wondering if I'm getting heat transfer from the hot fluid leaving the trans against the return line. Obviously this is not the reason why the trans is heating up but I'm wondering if this would keep it cooler.

and I'm going 4L80E sooner than later
 
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rocks, big fck'n rocks making contact with the tubes bending them in/up.



no idea what converter I have, had a friend build it that owns a shop and he knew what it was going to be used for. He's actually a wheeler too. I can be in 4wd/1st gear all day and it stays at 180 however if I'm grunting up a hill in partial throttle 2k rpms, third or 2nd gear it starts to slowly heat up to 220 (pan temp). I have the trans lines routed through the trans cooler, then through an auxiliary Derale with a fan and then back to the trans. While driving home from the rubicon a couple weeks ago I remembered that I routed the -8AN trans lines in/out of the trans through one tight heat sleeve so I'm wondering if I'm getting heat transfer from the hot fluid leaving the trans against the return line. Obviously this is not the reason why the trans is heating up but I'm wondering if this would keep it cooler.

and I'm going 4L80E sooner than later
I suppose that's possible. I have mine done the same way. I would certainly say it doesn't help. I need to heat wrap my exhaust crossover because I'm sure it's adding heat. I know you already did that tho. I have my coolers setup the same way. I do pull my temps right at the inlet to the radiator cooler, my logic is this should be the hottest point. But that could also be flawed logic.
 
it does need more, I wanted to tie the window pillars into the cage but came up short on time. Maybe later.....

oh and I bent the shit out of the dimple plates on the front bumper too.

View attachment 269149

I don’t know if you have it in yours, but I put a tube back in there to try and reinforce it to try and stop that from happening.
F1143C6D-B8AF-4A5E-A4E9-5C809CA578E3.png
 
I suppose that's possible. I have mine done the same way. I would certainly say it doesn't help. I need to heat wrap my exhaust crossover because I'm sure it's adding heat. I know you already did that tho. I have my coolers setup the same way. I do pull my temps right at the inlet to the radiator cooler, my logic is this should be the hottest point. But that could also be flawed logic.

My crossover is not wrapped, just the trans and fuel lines.
 
I don’t know if you have it in yours, but I put a tube back in there to try and reinforce it to try and stop that from happening.
View attachment 269159

That was part of the plan, never got to it, will now obviously.


I thought that this had a TH400?
So that would mean no lock-up. Am I that forgetful?

Yes TH400

Hear me out here. How about a trans that doesn't shift itself?

I expected this....but no.
 
Sounds like the temps may not be as big of a deal as I thought......

from the TCI website http://www.tciauto.com/tc/trans-life-expectancy

The ideal operating temperature for automatic transmission fluid is between 175 and 225° F. At approximately 240° F, important additives in the ATF begin to cook. The result is the formation of varnish inside the transmission. At approximately 260° F, internal transmission seals (which are typically manufactured from a polyacrylate material) begin to harden. The end results are leaks, both internal and external, simply because the seals lose their elasticity. At approximately 295° F, transmission clutch plates begin to slip because the oil is breaking down further. At approximately 315° F, seals and clutches effectively burn out. Carbon forms in the oil and for all intents and purposes, the transmission is junk. Just for your information, a typical transmission will die within 2000 miles if subjected to 300° F+ heat.
 

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