Towing in the mountains with a gasser????

Since this thread has gone somewhat off topic, the original question has been answered, and the OP has started a new thread on the hijacked topic, I am going to close this one. If you reply to the new thread, please try to refrain from becoming personal in your remarks because they will be deleted.
Barney

ChuckV1 wrote:

Oldme wrote:
Although using the 4 way hazards light seems like a good idea,
it could result in a moving violation, depending on where you are.

Virginia Code 46.2-1040 - Hazard lights

Limits the usage to stopped vehicles or:

"Allfour turn signals may be flashed simultaneously on a vehicle slowed orstopped at the scene of a traffic hazard, when traveling as part of a funeralprocession, or when traveling at a speed of thirty miles per hour or less.Except for vehicles traveling as part of a funeral procession, all four turnsignals shall not be flashed simultaneously while the vehicle is travelingfaster than thirty miles per hour".

The Va. State Police, especially, will enforce this law.
I have a friend who was towing a disabled semi with his wrecker
in the fog, in the mountains and was ticketed.
It was costly.

Sometimes the best intentions are not enough.

Out in the western states vehicles under 45mph are required to run
4way flashers, if you don't you will be told about it. Same with
chain's, if the sign states chair's are required you better have them.
It's a differant world out here in the west with 6% grades that can
be 8, 10 or 15 miles long with switch backs and run-away ramps.....

Are the "chairs" required for waiting in the run away truck ramps? ;)

Oldme wrote:
Although using the 4 way hazards light seems like a good idea,
it could result in a moving violation, depending on where you are.

Virginia Code 46.2-1040 - Hazard lights

Limits the usage to stopped vehicles or:

"Allfour turn signals may be flashed simultaneously on a vehicle slowed orstopped at the scene of a traffic hazard, when traveling as part of a funeralprocession, or when traveling at a speed of thirty miles per hour or less.Except for vehicles traveling as part of a funeral procession, all four turnsignals shall not be flashed simultaneously while the vehicle is travelingfaster than thirty miles per hour".

The Va. State Police, especially, will enforce this law.
I have a friend who was towing a disabled semi with his wrecker
in the fog, in the mountains and was ticketed.
It was costly.

Sometimes the best intentions are not enough.

Out in the western states vehicles under 45mph are required to run
4way flashers, if you don't you will be told about it. Same with
chain's, if the sign states chair's are required you better have them.
It's a differant world out here in the west with 6% grades that can
be 8, 10 or 15 miles long with switch backs and run-away ramps.....

That trans is the one that Ford uses under license, and it can lock in all forward gears, why is this confusing to you?
And yes, the Tundra 6 speed, which is a modern Aisin designed 6 speed runs comparable temps. How about the 2 transmissions that preceded it? Not so much.

Hybridhunter wrote:

The metallurgy, clutch materials, hardness specs, seals, fluid spec. Name one transmission in a light duty vehicle that had a 200f operating temp unloaded by design? Quit pretending, other than planetary gears, it is a new world. The Toyota's trans is not the same, but the point is.

Uh, do you know where the Toyota 5.7L trans runs its ATF temps? You better check yourself. They run around 200 constantly and is thermostatically controlled.

And its great you found a trans that can lock up in all gears dating back to 2000. Way to go. Now find another, current trans that does. May be this is common today and I am not up to speed, but heck if this is common knowledge even for those who pay attention to this stuff.

jerem0621 wrote:

marcsbigfoot20b27 wrote:

jerem0621 wrote:

marcsbigfoot20b27 wrote:
I just got done camping on the Mogollon Rim in AZ last week.

The very last hill climb is a whopper up the 260. Towing a 7000 lb trailer that is 2 feet wider and 3 feet taller than my 99 Tahoe isnt fun. Going up the hill and keeping 45 mph required me to reprogram my custom 0411 ECM and added tow/haul map to lock up the TCC in 2nd which it normally wouldnt. Doing this I can keep it WOT for 11 minutes till I get to the top. At 80 degrees outside my trans still got to 200 due to the planetary gears making heat and engine with 180 stat went to 213.

Truck has lots of mods or it would never had made it. I should have videoed it but next week Im picking up an F350 psd 7.3 so I will never have to do that again. No more gasser for towing!

Don't PSD 7.3's have less than 300 hp? It will crawl the same grades just at a lower RPM...however that RPM will probably be proportional to what a gasser would do making the same power.

I don't get the problem with RPM. Let the gas motor rev and make it's power. Diesels have to rev to make power too it just redlines at a lower rpm.

Thanks!

Jeremiah

I guess I didn't include enough info...

My Tahoe makes about 290 hp and 380 tq which is really 240 hp and 330 tq AT THE WHEELS.

The truck I am buying from a friends dad who is original owner is a 2000 F350 dually that he drove to Banks in Cali and had the Banks Power Pack installed.
He said they dyno'd it at 300 hp and 670 tq AT THE WHEELS.
So I will be gaining +60 hp and +340 tq over the Tahoe, not to mention beter mileage.

Okay, that makes sense.

Taking the Diesel and Gas out of this issue. Just keep an eye on the 4R100 transmission and enjoy the new to you truck.

The MPG's may not be as drastic an increase as you think though. My Father in laws 99 PSD got about 13-14 mpg highway. That was with the Bullydog turned down. But you don't buy a truck for MPG anyhow.

Thanks!

Jeremiah

Yeah, I read up on the crappy 4R100. My first upgrade will be a 6.0 trans cooler. It also has a trans control module from the Banks kit.
I think my Tahoe wins the unloaded mileage....at a steady 65mph I get 20.0 mpg. Towing from Phx to the rim and back got me 8.5 mpg. Phx to Rocky Point Mexico and back is 9.9 mpg. I am guessing the Diesel will do better mileage towing only. It has an extended height bed cap so it will get better aero than the not so tall Tahoe.

RinconVTR wrote:

Hybridhunter wrote:


Say what? There a fewer similarities than differences, Clutch to clutch shifting, any gear torque converter locking, and robust overdrive ratios that are used for towing are not even the same technology as years past. Each of those items is a game changer.

Add in semi synthetic low viscosity factory fill, and completely redefined operating temperature range, and you have what amounts to a new technology.

If you believe that modern transmissions "are not that different" then are familiar with neither.

Say what? You better brush up on "technology".

Clutch to clutch shifting ---- completely different trans type and not used in trucks nor any towing vehicles I am aware of!

any gear torque converter locking --- not any gear, that I know for sure. It may very well "lock up" in more higher gears than decades ago, but definitely not all gears. Say it does...this would not be new tech.

The ZF 6HP26 (IE- Ford 6r80 6 speed) was the first six-speed automatic transmission in a production passenger car. Released by ZF Friedrichshafen AG in 2000, it was manufactured by ZF Getriebe GmbH in Saarbrücken, Germany.

The ZF 6HP26 uses a Lepelletier epicyclic/planetary gearset, which can provide more gear ratios with significantly fewer components. This means the ZF 6HP26 is actually lighter than its 5-speed predecessors. It also has the capability to achieve torque converter lock-up on all six forward gears, and disengage it completely when at a standstill, dramatically closing the fuel efficiency gap between automatic and manual transmissions.

If I recall correctly, it uses no bands, and clutch to clutch shifting, which you are mistakenly thinking of as dual clutch transmission.

RinconVTR wrote:

robust overdrive ratios --- "robust OD ratios"? Uh, whatever that means. Regardless, different OD rations has little to nothing to do with technology.

RinconVTR wrote:

"Robust" implies strength, as in they are strong enough to withstand the load. Dismissing the long standing idea that towing in overdrive will do harm.

semi synthetic low viscosity factory fill --- not new tech, nor is full syn. Its simply in widespread use today.

That was my point.....

RinconVTR wrote:

completely redefined operating temperature range --- only based on running semi and full synthetic oil that can handle the higher temps. Nothing more. And we aren't talking anything drastic either. I recall the very same operating and towing trans temp ranges 3 decades ago as I do today.

The metallurgy, clutch materials, hardness specs, seals, fluid spec. Name one transmission in a light duty vehicle that had a 200f operating temp unloaded by design? Quit pretending, other than planetary gears, it is a new world. The Toyota's trans is not the same, but the point is.

marcsbigfoot20b27 wrote:

jerem0621 wrote:

marcsbigfoot20b27 wrote:
I just got done camping on the Mogollon Rim in AZ last week.

The very last hill climb is a whopper up the 260. Towing a 7000 lb trailer that is 2 feet wider and 3 feet taller than my 99 Tahoe isnt fun. Going up the hill and keeping 45 mph required me to reprogram my custom 0411 ECM and added tow/haul map to lock up the TCC in 2nd which it normally wouldnt. Doing this I can keep it WOT for 11 minutes till I get to the top. At 80 degrees outside my trans still got to 200 due to the planetary gears making heat and engine with 180 stat went to 213.

Truck has lots of mods or it would never had made it. I should have videoed it but next week Im picking up an F350 psd 7.3 so I will never have to do that again. No more gasser for towing!

Don't PSD 7.3's have less than 300 hp? It will crawl the same grades just at a lower RPM...however that RPM will probably be proportional to what a gasser would do making the same power.

I don't get the problem with RPM. Let the gas motor rev and make it's power. Diesels have to rev to make power too it just redlines at a lower rpm.

Thanks!

Jeremiah

I guess I didn't include enough info...

My Tahoe makes about 290 hp and 380 tq which is really 240 hp and 330 tq AT THE WHEELS.

The truck I am buying from a friends dad who is original owner is a 2000 F350 dually that he drove to Banks in Cali and had the Banks Power Pack installed.
He said they dyno'd it at 300 hp and 670 tq AT THE WHEELS.
So I will be gaining +60 hp and +340 tq over the Tahoe, not to mention beter mileage.

Okay, that makes sense.

Taking the Diesel and Gas out of this issue. Just keep an eye on the 4R100 transmission and enjoy the new to you truck.

The MPG's may not be as drastic an increase as you think though. My Father in laws 99 PSD got about 13-14 mpg highway. That was with the Bullydog turned down. But you don't buy a truck for MPG anyhow.

Thanks!

Jeremiah

jerem0621 wrote:

marcsbigfoot20b27 wrote:
I just got done camping on the Mogollon Rim in AZ last week.

The very last hill climb is a whopper up the 260. Towing a 7000 lb trailer that is 2 feet wider and 3 feet taller than my 99 Tahoe isnt fun. Going up the hill and keeping 45 mph required me to reprogram my custom 0411 ECM and added tow/haul map to lock up the TCC in 2nd which it normally wouldnt. Doing this I can keep it WOT for 11 minutes till I get to the top. At 80 degrees outside my trans still got to 200 due to the planetary gears making heat and engine with 180 stat went to 213.

Truck has lots of mods or it would never had made it. I should have videoed it but next week Im picking up an F350 psd 7.3 so I will never have to do that again. No more gasser for towing!

Don't PSD 7.3's have less than 300 hp? It will crawl the same grades just at a lower RPM...however that RPM will probably be proportional to what a gasser would do making the same power.

I don't get the problem with RPM. Let the gas motor rev and make it's power. Diesels have to rev to make power too it just redlines at a lower rpm.

Thanks!

Jeremiah

I guess I didn't include enough info...

My Tahoe makes about 290 hp and 380 tq which is really 240 hp and 330 tq AT THE WHEELS.

The truck I am buying from a friends dad who is original owner is a 2000 F350 dually that he drove to Banks in Cali and had the Banks Power Pack installed.
He said they dyno'd it at 300 hp and 670 tq AT THE WHEELS.
So I will be gaining +60 hp and +340 tq over the Tahoe, not to mention beter mileage.