Vegasmarc21
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Had a thought if wrapping exhaust pipe that sits near transmission pan to keep transmission oil cooler. Is it worth it? Why or why not? Any better ideas to keep transmission pan cooler from exhaust pipe heat?
Keeping Transmission pan cooler
- Thread starter Vegasmarc21
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kbuskill
***CAUTION*** I do my own stunts!
I would probably stick something like this onto the pan above the pipe...
https://www.amazon.com/Thermo-Tec-1...d=1537324729&sr=8-5&keywords=engine+heat+wrap
It is a fiberglass material with a foil backing to reflect the heat.
While I doubt it would make a huge difference in overall fluid temperature it certainly couldn't hurt anything.
I would be very interested in seeing the results of a controlled experiment.
Ambient outside temp for before install and after install tests.
Steady/Highway driving at X MPH for X amount of time.
Idling for X amount of time.
My best guess is that this would do very little for constant driving temperatures due to air flow pushing the heat of the exhaust pipe back away from the trans pan and that it would probably only slow the heating process at idle.
If you were very serious about alleviating the heat induced into the transmission pan from the exhaust the best solution would be to lose the Y pipe and go true duals. I am not saying this to deter you from trying it, much to the contrary. I actually love seeing tests performed and real world controlled data being collected. That is what these sites are all about.. bouncing ideas off of one another and testing to see what works.
I very much hope that you will give this idea a try and keep us all posted with the results.
https://www.amazon.com/Thermo-Tec-1...d=1537324729&sr=8-5&keywords=engine+heat+wrap
It is a fiberglass material with a foil backing to reflect the heat.
While I doubt it would make a huge difference in overall fluid temperature it certainly couldn't hurt anything.
I would be very interested in seeing the results of a controlled experiment.
Ambient outside temp for before install and after install tests.
Steady/Highway driving at X MPH for X amount of time.
Idling for X amount of time.
My best guess is that this would do very little for constant driving temperatures due to air flow pushing the heat of the exhaust pipe back away from the trans pan and that it would probably only slow the heating process at idle.
If you were very serious about alleviating the heat induced into the transmission pan from the exhaust the best solution would be to lose the Y pipe and go true duals. I am not saying this to deter you from trying it, much to the contrary. I actually love seeing tests performed and real world controlled data being collected. That is what these sites are all about.. bouncing ideas off of one another and testing to see what works.
I very much hope that you will give this idea a try and keep us all posted with the results.
Your best bet is get a nice big transmission oil cooler like a Tru Cool 40k and fuggetaboutit. Your exhaust isn’t going to raise the trans temp enough to matter anyway.
a transmission oil cooler and deep transmission pan will help keep the transmission temps down, I have both on mine and regular driving for me (speeding for you) then my temps are usually in the 140's range, so if you drive like a normal person it may bring it down to 120's-130's depending on your elevation
swathdiver
Full Access Member
How much does the exhaust pipe heat up the transmission oil? I bet it is hardly worth mentioning. What kind of temperatures are you seeing in city and highway driving?
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Vegasmarc21
Full Access Member
The most ive seen as far as temp is 205 ever after a year of driving..today was 170 at most in Portland Oregon weather was like 75 degrees...
swathdiver
Full Access Member
Normal and within specs. What year is yours?
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Vegasmarc21
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2011.....always wondering if there has been a software update for the tcm to make it shift better...I bought this Tahoe 1 year ago, so I don't know if it has ever had any tcm updates. Has anyone here had updates done for the 6l80 tcm? If so, was it worth it, and what benefits did it do?
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Vegasmarc21
Full Access Member
I have a trans cooler...I thought they all come with a trans cooler. I do not have a deeper transmission pan, but thinking of getting one..btw, nice pic. Where do you live? Looks like It could be from Oregon with that pic of yours?
The factory trans coolers are tiny and don’t cool that well. The best cooler by consensus is the Tru Cool 40k; there’s a few threads on installations here. @Doubeleive is from Stockton CA however I’m in the same city as you. What part of town do you live in? I’m in outer SE.
Buy this and put it on, deeper and finned...
swathdiver
Full Access Member
Yes, it was tuned by BlackBear and shifts great! That's one of the best parts of having the tune done. When was your fluid changed last?
As for benefits, well, from a roll if you stomp on it and it shifts back down to first, lifts the nose off the ground and the truck plumb takes off! The shifts are more firm when on the throttle and the truck is more efficient generally, even with AFM de-activated.
I carry a lot of weight in my truck at times but have not towed with it yet. Am well pleased with my transmission temperatures with clean fluid and the stock system. I think it's around page 27-30 in the post Useless Information where operating information was posted about the 6L80 and the temps mine runs under various scenarios.
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Vegasmarc21
Full Access Member
How much extra fluid can you put in there?
kbuskill
***CAUTION*** I do my own stunts!
thompsoj22
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Just a question in regard to the deeper pan, The space between the trans pan/ exhaust crossover is allready tight. Is the deeper pan still recessed to allow for this clearance issue or the same depth throughout? i want to install one simply for the drainplug and future servicing but questioned the fit. Oops, i see the pic but i dont feel i have the much clearance currently, The pic is a 6L80 on a 6.2?
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No 5.3, but nonetheless, its only deeper on the one side, not the exhaust side. Fyi 6.2 and 5.3 bolt up same to 6 soeed trans. Basically they are same motor,
kbuskill
***CAUTION*** I do my own stunts!
This is the 6L80 deep pan...
https://www.yourcovers.com/transpan_9427.php
The other one I posted was for the 4L60 4 speed.
I bought the b&m pan for mine, the exhaust had to be lowered a inch or two to get it on but it does not rub or anything it was just while getting it installed
kbuskill
***CAUTION*** I do my own stunts!
Derale also makes one that has cooling tubes in the bottom of it.
https://derale.com/products/transmission-pans/cooling-pans/14204-detail
Pretty cool idea... unfortunately from looking at the stock deep pan height, and comparing it to this one, it will definitely not fit with the exhaust crossover pipe in the factory location.
I bought that one and it looked like it wouldn’t fit with my headers so I sold it to a member. After that I ended up buying my Performabuilt and it has a warranty that I don’t want to void. They use a stock deep pan and also provide a heavy duty cooler but I run the Tru Cool. I figure if a performance trans builder specs a stock deep pan, it should be good.
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