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โJan-21-2021 07:16 PM
Grit dog wrote:valhalla360 wrote:RoyJ wrote:
Regardless of weight, performance testing on these "super trucks" may be a moot point, as all can pull even 10k lbs at speed limit the entire way.
We're talking 700 hp here for 11k - 16k GVW. That's double to triple the hp-weight ratio of regular trucks at max GVW.
The real question is how long those engines will last doing that regularly.
These HP ratings are about taking an empty truck 0-60 very quickly. That will only push the engine for a few seconds. The engine won't really have any time to build up any heat from the extra burn.
Even cruising 100mph on the freeway, it won't be putting out anything close to 700hp. Even here, as long as the cooling system is in good shape, you aren't really stressing the engine.
Off road? Mud bogging or climbing a sand dune, again, you may floor it for a few seconds but not for a 1/2 hour continuous.
Pulling 10k up a mountain with your foot all the way to the floor...it may not be the full 700hp but it's putting out a lot of HP and doing so for an extended period of time. Now you are really stress testing the engine. Do that regularly and I would wonder about durability with a high strung engine.
I suppose if you just do laps pulling it up the mountain "foot to the floor" (whatever that means, I'm pretty sure you couldn't keep your foot tot the floor in a trx with any trailer it's rated for on most any grade without going way faster than you can handle or is even close to legal, lol)all day every day, it will probably affect service life greatly.
And virtually noone will buy these 2 models if their purpose is mostly work. They're hot rods and off road toys that can tow as a side benefit.
โJan-21-2021 08:26 AM
valhalla360 wrote:Bionic Man wrote:valhalla360 wrote:Grit dog wrote:
I suppose if you just do laps pulling it up the mountain "foot to the floor" (whatever that means, I'm pretty sure you couldn't keep your foot tot the floor in a trx with any trailer it's rated for on most any grade without going way faster than you can handle or is even close to legal, lol)all day every day, it will probably affect service life greatly.
And virtually noone will buy these 2 models if their purpose is mostly work. They're hot rods and off road toys that can tow as a side benefit.
That's my point. Pretty much no one is using these for towing...at least not anything significant (sure maybe a utility trailer with a couple dirt bikes).
But climbing big grades regularly isn't that unusual. I'm sure lots of guys living in Denver will pull a trailer west into the mountains most weekends in the summer. If they were floor it to keep the speed up to 70mph thru Vail Pass, that's going to be very hard use for a full hour of continuous output. Heck running that at 45mph with a 10k trailer is pretty hard use...70mph is probably more than double the power demand.
The test is really just silliness.
I'm pretty active on one of the tow boats forums. I'd say that the most most popular single model of tow vehicle is a Ford Raptor. It is popular because (at least in theory) it makes a good tow vehicle for the average wake boat which probably weighs 7000 pounds (+/- 1000 pounds), and absolutely is fun to drive. There is already plenty of talk of some of these folks moving to a TRX. Not once have I heard about an engine/tranny problem with the Raptor (although plenty of complaints that the rear end isn't stiff enough for the tongue weight).
That said, I think a fair number of these trucks will be used for that type of duty.
In response to your comment about heading to Vail from Denver, that is far from an hour of running WOT towing that way. West bound there are three or four extended hills, none of which take more than 5 minutes up. With lots of areas for the engine to cool down between inclines. Eastbound is a little steeper, both up Vail pass and the east side of the tunnel. But none of that requires my Expedition Max with 3.5 EcoBoost to run WOT pulling my 7000 pound boat. And I have half the HP of the TRX.
Moral of the story, I can't think of a on-road situation where you would run the truck in a legal fashion that would put a significant strain on the powertrain.
And if I were looking for a truck to only tow my boat (no RV), a TRX would be HIGH on my list of considerations.
Considering the number of raptors sold and the number I've seen actually out on the road towing...I suspect the sample you are getting on the form is highly distorted. I also suspect most of those aren't thrashing it on big climbs.
Are you towing 7k at 70mph with your ecoboost when you do that climb? I've only been thru a couple of times and both were EB...I didn't see any RVs doing 70mph and maybe not an hour straight working the old V-10 pretty hard doing 45-50mph with a similar weight but easily 20-30minutes continuous. Take it up to 70mph and that's a lot more power output.
โJan-21-2021 06:34 AM
Bionic Man wrote:valhalla360 wrote:Grit dog wrote:
I suppose if you just do laps pulling it up the mountain "foot to the floor" (whatever that means, I'm pretty sure you couldn't keep your foot tot the floor in a trx with any trailer it's rated for on most any grade without going way faster than you can handle or is even close to legal, lol)all day every day, it will probably affect service life greatly.
And virtually noone will buy these 2 models if their purpose is mostly work. They're hot rods and off road toys that can tow as a side benefit.
That's my point. Pretty much no one is using these for towing...at least not anything significant (sure maybe a utility trailer with a couple dirt bikes).
But climbing big grades regularly isn't that unusual. I'm sure lots of guys living in Denver will pull a trailer west into the mountains most weekends in the summer. If they were floor it to keep the speed up to 70mph thru Vail Pass, that's going to be very hard use for a full hour of continuous output. Heck running that at 45mph with a 10k trailer is pretty hard use...70mph is probably more than double the power demand.
The test is really just silliness.
I'm pretty active on one of the tow boats forums. I'd say that the most most popular single model of tow vehicle is a Ford Raptor. It is popular because (at least in theory) it makes a good tow vehicle for the average wake boat which probably weighs 7000 pounds (+/- 1000 pounds), and absolutely is fun to drive. There is already plenty of talk of some of these folks moving to a TRX. Not once have I heard about an engine/tranny problem with the Raptor (although plenty of complaints that the rear end isn't stiff enough for the tongue weight).
That said, I think a fair number of these trucks will be used for that type of duty.
In response to your comment about heading to Vail from Denver, that is far from an hour of running WOT towing that way. West bound there are three or four extended hills, none of which take more than 5 minutes up. With lots of areas for the engine to cool down between inclines. Eastbound is a little steeper, both up Vail pass and the east side of the tunnel. But none of that requires my Expedition Max with 3.5 EcoBoost to run WOT pulling my 7000 pound boat. And I have half the HP of the TRX.
Moral of the story, I can't think of a on-road situation where you would run the truck in a legal fashion that would put a significant strain on the powertrain.
And if I were looking for a truck to only tow my boat (no RV), a TRX would be HIGH on my list of considerations.
โJan-20-2021 06:12 PM
valhalla360 wrote:Grit dog wrote:
I suppose if you just do laps pulling it up the mountain "foot to the floor" (whatever that means, I'm pretty sure you couldn't keep your foot tot the floor in a trx with any trailer it's rated for on most any grade without going way faster than you can handle or is even close to legal, lol)all day every day, it will probably affect service life greatly.
And virtually noone will buy these 2 models if their purpose is mostly work. They're hot rods and off road toys that can tow as a side benefit.
That's my point. Pretty much no one is using these for towing...at least not anything significant (sure maybe a utility trailer with a couple dirt bikes).
But climbing big grades regularly isn't that unusual. I'm sure lots of guys living in Denver will pull a trailer west into the mountains most weekends in the summer. If they were floor it to keep the speed up to 70mph thru Vail Pass, that's going to be very hard use for a full hour of continuous output. Heck running that at 45mph with a 10k trailer is pretty hard use...70mph is probably more than double the power demand.
The test is really just silliness.
โJan-20-2021 01:21 PM
valhalla360 wrote:
The real question is how long those engines will last doing that regularly.
These HP ratings are about taking an empty truck 0-60 very quickly. That will only push the engine for a few seconds. The engine won't really have any time to build up any heat from the extra burn.
Even cruising 100mph on the freeway, it won't be putting out anything close to 700hp. Even here, as long as the cooling system is in good shape, you aren't really stressing the engine.
Off road? Mud bogging or climbing a sand dune, again, you may floor it for a few seconds but not for a 1/2 hour continuous.
Pulling 10k up a mountain with your foot all the way to the floor...it may not be the full 700hp but it's putting out a lot of HP and doing so for an extended period of time. Now you are really stress testing the engine. Do that regularly and I would wonder about durability with a high strung engine.
โJan-20-2021 09:04 AM
Grit dog wrote:
I suppose if you just do laps pulling it up the mountain "foot to the floor" (whatever that means, I'm pretty sure you couldn't keep your foot tot the floor in a trx with any trailer it's rated for on most any grade without going way faster than you can handle or is even close to legal, lol)all day every day, it will probably affect service life greatly.
And virtually noone will buy these 2 models if their purpose is mostly work. They're hot rods and off road toys that can tow as a side benefit.
โJan-20-2021 07:02 AM
โJan-20-2021 07:00 AM
valhalla360 wrote:RoyJ wrote:
Regardless of weight, performance testing on these "super trucks" may be a moot point, as all can pull even 10k lbs at speed limit the entire way.
We're talking 700 hp here for 11k - 16k GVW. That's double to triple the hp-weight ratio of regular trucks at max GVW.
The real question is how long those engines will last doing that regularly.
These HP ratings are about taking an empty truck 0-60 very quickly. That will only push the engine for a few seconds. The engine won't really have any time to build up any heat from the extra burn.
Even cruising 100mph on the freeway, it won't be putting out anything close to 700hp. Even here, as long as the cooling system is in good shape, you aren't really stressing the engine.
Off road? Mud bogging or climbing a sand dune, again, you may floor it for a few seconds but not for a 1/2 hour continuous.
Pulling 10k up a mountain with your foot all the way to the floor...it may not be the full 700hp but it's putting out a lot of HP and doing so for an extended period of time. Now you are really stress testing the engine. Do that regularly and I would wonder about durability with a high strung engine.
โJan-20-2021 06:52 AM
โJan-20-2021 06:13 AM
RoyJ wrote:
Regardless of weight, performance testing on these "super trucks" may be a moot point, as all can pull even 10k lbs at speed limit the entire way.
We're talking 700 hp here for 11k - 16k GVW. That's double to triple the hp-weight ratio of regular trucks at max GVW.