tuning trans for towing/hauling....
10-19-2007, 09:15 AM
#1
tuning trans for towing/hauling....
for those of you who dont know my setup by now, I have a ecsb, 5.3, 224/227 cam, bottle, Yank SS3600, FLT-5 (vac mod) and 4.10's... I'm getting ready to move which is going to be a lot different for the truck than it sees everyday.
Normally, it stays unloaded with nothing more than a nitrous bottle and a VERY small toolbox locked in the corner of the bed. (jumper cables, etc) in December I'll be making the 1450 mile trip from VA to TX and wonder what I should change about my trans tune for less stress and heat generation. I have a 9.5" converter, which has me kind of worried due to the smaller clutch area...
Should I lock it up later under lighter throttle? sooner under light throttle?
-The way I have it now is for it to lock up anything btwn 1-43% TPS over 50mph in 4th.... and on a coasting stop/slowdown situiation it will stay locked until it gets to 45mph, then will unlock again... it works really well for me how the driving is here. It never gets above 150* cruising even in the summer hell heat... and if you arent familiar with my cooler setup, its nice and healthy... I've got a fan to go on it yet as well...
Should I leave it alone and just keep an eye on it or change it a little?
Normally, it stays unloaded with nothing more than a nitrous bottle and a VERY small toolbox locked in the corner of the bed. (jumper cables, etc) in December I'll be making the 1450 mile trip from VA to TX and wonder what I should change about my trans tune for less stress and heat generation. I have a 9.5" converter, which has me kind of worried due to the smaller clutch area...
Should I lock it up later under lighter throttle? sooner under light throttle?
-The way I have it now is for it to lock up anything btwn 1-43% TPS over 50mph in 4th.... and on a coasting stop/slowdown situiation it will stay locked until it gets to 45mph, then will unlock again... it works really well for me how the driving is here. It never gets above 150* cruising even in the summer hell heat... and if you arent familiar with my cooler setup, its nice and healthy... I've got a fan to go on it yet as well...
Should I leave it alone and just keep an eye on it or change it a little?
10-20-2007, 07:27 PM
#5
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What year, and which tuning software?
The only thing you might do (besides raise and lower lock-up points) if you have HP and are 2001-2002 PCM is to turn up the lock-up pressure to help the converter hold during lock-up.
If it were me I'd just watch (log) Trans temp, and TCC slip.
The only thing you might do (besides raise and lower lock-up points) if you have HP and are 2001-2002 PCM is to turn up the lock-up pressure to help the converter hold during lock-up.
If it were me I'd just watch (log) Trans temp, and TCC slip.
10-22-2007, 07:53 AM
#6
What year, and which tuning software?
The only thing you might do (besides raise and lower lock-up points) if you have HP and are 2001-2002 PCM is to turn up the lock-up pressure to help the converter hold during lock-up.
If it were me I'd just watch (log) Trans temp, and TCC slip.
The only thing you might do (besides raise and lower lock-up points) if you have HP and are 2001-2002 PCM is to turn up the lock-up pressure to help the converter hold during lock-up.
If it were me I'd just watch (log) Trans temp, and TCC slip.
10-22-2007, 10:35 AM
#7
I have the same converter but in a 3200 and yesterday I went on a 400 mile trip(no stops). I was carrying about 800 in the bed. Trans temps never went above 163*(I was logging). This was in 85* heat for the majority of the trip.
We have very similar trucks except mine is much heavier and you have 4.10's.
I'd say as long as you take a couple breaks here and there you'll be fine. Even then, my transmission didn't hint at having issues.
EDIT-Oh and my truck is vaccum modded and have a fully built transmission(very close in specs to a flt level 5 but no 5 pinion planetaries
We have very similar trucks except mine is much heavier and you have 4.10's.
I'd say as long as you take a couple breaks here and there you'll be fine. Even then, my transmission didn't hint at having issues.
EDIT-Oh and my truck is vaccum modded and have a fully built transmission(very close in specs to a flt level 5 but no 5 pinion planetaries
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10-22-2007, 10:45 AM
#8
I have the same converter but in a 3200 and yesterday I went on a 400 mile trip(no stops). I was carrying about 800 in the bed. Trans temps never went above 163*(I was logging). This was in 85* heat for the majority of the trip.
We have very similar trucks except mine is much heavier and you have 4.10's.
I'd say as long as you take a couple breaks here and there you'll be fine. Even then, my transmission didn't hint at having issues.
EDIT-Oh and my truck is vaccum modded and have a fully built transmission(very close in specs to a flt level 5 but no 5 pinion planetaries
We have very similar trucks except mine is much heavier and you have 4.10's.
I'd say as long as you take a couple breaks here and there you'll be fine. Even then, my transmission didn't hint at having issues.
EDIT-Oh and my truck is vaccum modded and have a fully built transmission(very close in specs to a flt level 5 but no 5 pinion planetaries
Thats good to hear... I just dont want to have any problems out of it somewhere between VA and TX... its a long *** trip. I'm sure I'll have more than 800lbs in it... but it should be alright I guess as long as I can keep the converter locked up... I'm looking at different routes to keep me out of the hills. I'll be taking 2 days to drive it. I'm in no hurry once I leave here... kissing the VA border goodbye will be a great ******* day in my life. LOL...
I'm trying to cruise at 75 the entire way... so I can keep half-*** gas mileage and still make half-*** time. I'm babying the rear right now too... I'll be going through it next weekend.
10-22-2007, 11:23 AM
#9
Thats good to hear... I just dont want to have any problems out of it somewhere between VA and TX... its a long *** trip. I'm sure I'll have more than 800lbs in it... but it should be alright I guess as long as I can keep the converter locked up... I'm looking at different routes to keep me out of the hills. I'll be taking 2 days to drive it. I'm in no hurry once I leave here... kissing the VA border goodbye will be a great ******* day in my life. LOL...
I'm trying to cruise at 75 the entire way... so I can keep half-*** gas mileage and still make half-*** time. I'm babying the rear right now too... I'll be going through it next weekend.
I'm trying to cruise at 75 the entire way... so I can keep half-*** gas mileage and still make half-*** time. I'm babying the rear right now too... I'll be going through it next weekend.
I think you'll be just fine.
EDIT-Oh and for what it's worth I got 20.56 mpg on the trip yesterday.
10-22-2007, 11:39 AM
#10
I wouldn't give it a second thought, your not hauling ANY kind of weight. Your no where near the GVW of the truck. My truck weighs 5500lbs with me in it, and I've hauled a car trailer with a F-body on it, a motor, a big tool box and a bunch of crap in the back of the truck, over 400 miles with 5 people in the truck. My tranny is pretty much stock (shift kit/vette servo) and a DACCO remain TB converter. WITH the STS turbo on the truck. Tranny temps where fine with just the little cooler I have on it. I've towed way more then what your planing a lot farther and never had any trouble.