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Old 10-23-2015, 09:06 PM   #81
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The converter is what makes most of the heat unless it is locked up.
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Old 10-24-2015, 08:23 AM   #82
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Why would you not want the converter to lock up? That is a good way to overheat your transmission.
I learned something. Also got a little concerned that my 'plan' wouldn't work.

With a 3:31 rear towing my upcoming purchase of a 27' Hyperlite my plan was to barely use 6th gear on the open road.

I was concerned about the constant locking and unlocking of the clutches in the Torque Converter (TC) and about the constant down-shifting from 6th to 5th and back up. Which, in my experience is fairly common on the older trannies and leads to them going up in smoke.

Turns out that --

6R80 Specs & Ratios - F150 Hub
6R80 Specs & Ratios
It features torque converter lockup capabilities in all 6 gears

BT:
Hope that's true because I don't believe I will be able to handle 6th gear lockup with all that resistance behind me
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Old 10-24-2015, 01:05 PM   #83
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ah finally some information that makes sense!
I towed ( yes past tense just bought a 2015 Titan) with a 2002 chev avalanche and pulling a 2011 coachman catalina 24FBS the trans temp was running 210 - 215 across indiana with 85 degree ambient. I was wondering why everyone else is running temps so low. the avalanche of this era had HD cooling for trailering BUT did not have the aux trans cooler it had a bigger cooler in the rad. I also saw that chart and thought I was cooking the trans slowly, now with this discussion i feel a little better about the trailering thing.
I used a scangauge 2 for trans readings cause the stock engine coolant gauge would go up 25 - 35 degree before showing anything on the dash and it freaked me out.
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Old 10-26-2015, 11:25 PM   #84
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Quote:
Originally Posted by The Big Toe View Post
I learned something. Also got a little concerned that my 'plan' wouldn't work.



With a 3:31 rear towing my upcoming purchase of a 27' Hyperlite my plan was to barely use 6th gear on the open road.



I was concerned about the constant locking and unlocking of the clutches in the Torque Converter (TC) and about the constant down-shifting from 6th to 5th and back up. Which, in my experience is fairly common on the older trannies and leads to them going up in smoke.



Turns out that --



6R80 Specs & Ratios - F150 Hub

6R80 Specs & Ratios

It features torque converter lockup capabilities in all 6 gears



BT:

Hope that's true because I don't believe I will be able to handle 6th gear lockup with all that resistance behind me

It doesn't show what your tv is but I have the 3.31 ratio in my Eco work truck and towed my 9000 pound crossroads with it from BC to Calgary. It had no problem holding 6 th on the flats on cruise control. GCW was 14,900, rated at GCWR15,100. Have to say it towed it better than my 2500 sub with a 7.4 L.


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Old 10-27-2015, 07:15 AM   #85
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it's amazing what these eco's can do...especially with 3:31 gears....seems those pulls on TC1 were long and steep....you dont say how slow you got or how hot and what rpm's....just curious....actually my real question is....do you feel the motor was laboring anywhere.
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Old 10-27-2015, 07:55 AM   #86
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Originally Posted by Dabmeb View Post
It doesn't show what your tv is but I have the 3.31 ratio in my Eco work truck and towed my 9000 pound crossroads with it from BC to Calgary. It had no problem holding 6 th on the flats on cruise control. GCW was 14,900, rated at GCWR15,100. Have to say it towed it better than my 2500 sub with a 7.4 L.


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I have a 2013 F150 with the V8. I'm putting supersprings and a Hellwig sway bar on it. The Supersprings are already on it. The Sway bar is supposed to be here tomorrow..

Yes, the EcoBoost has some serious oomph but I understand from those that have towed with both that the dropoff is very little in the Coyote V8.

I'm going to find out
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