Why is that?
Mine still works fine, but I have yet to do it under a load. Planning on it when I do the loaded 0-60 vid with it.

 

My definition of a power shift is with the throttle to the floor, and then stab the clutch, yank on the shifter and hope it all goes well, never liftting off the throttle the whole time. I doubt very seriously it could be done with ANY truck trans on the planet.

 

Is your v-10 totally stock?

 

I'm with Sand_Man here.

You are attempting to take an engine with a heavy flywheel at wide open throttle belting out over 400 ft-lbs of torque from 5,500 RPMs to 3,000 RPMs in a fraction of a second through a friction coupling.

Are you nuts?

 

IMO, yea you can get a gas engine to run faster than the diesel but diesel engines are designed for towing. If you need to tow large trailers buy diesel, if its daily driver and light tower buy gas. There's a reason every commercial heavy duty machinery are all diesels. I also think a huge truck needs to sound like one. Its funny when your standing next to a huge lifted v-10 and it sounds like a little f-150.

 

Depending on the driver, the auto for the psd probably is the better way to go. It won't put down as much tractive force in 1st gear as the manual, but a steep 1st in a psd has you shifting at around 12 mph. That little bit of a start is probably offset by slow shifting, turbo lag, etc. I would like to see the v10 with a manual to show that with proper gearing it will be able to jerk the automatic psd out of the hole like nobodies business.

If you are ever down this way feel free to stop in and chat for a while. I think you would be pleasantly surprised by how mine pulls in 1st Oh, for what it's worth I checked our 0-35 mph times from our videos. The 6.0 went from 0-32 in 23 seconds, but then it shifted and took another 13 seconds to pull from 32 to 35 mph. Total time was 36 seconds 0-35 mph. The 7.3 took 28 seconds to go from 0-25 and never hit 35 mph. The v10 took 19 seconds from 0-25 and never hit 35 mph. Your 6.4 took 25 seconds to go from 0-35. My 5.4 took 33 seconds to go from 0-35. Not too shabby for a 2v 5.4, especially with me letting up to go over some road construction and around a turn and considering my hill was a 23% grade compared to your alls 15% grade.

 

Powershifting under a load is a great way to rip teeth off gears, twist u-joints, and snap axle shafts. No different than popping the clutch.

 

And the V10 isn't? If it wasn't designed for towing why is it only available in 3/4 ton and larger pickups?

Even an F-550 isn't huge, and sound has nothing to do with how an engine handles a load. Mine is much quieter than the 7.3L PSD and has MUCH more power. So is the V10!

Super Duty pickups aren't heavy duty...they are't even medium duty! Heavy duty engines do NOT have 8 cylinders.

 

What im trying to say is diesels PERIOD are made to work. We have our own peter built flat top with a CAT 3406 that puts out 500 HP. I just think its funny when you can't hear the engine running, I wish the new engines weren't so quiet.

 

Diesels are made to work? Hmmm, blanket statements like that are what causes arguements (all V10's suck, all diesels are breakage-prone, all Fords are great trucks, etc). Case in point: one of my wife's freinds has a diesel that couldn't pull a trailer on a bet! Of course it's in a Beetle, but still, you get the idea.

 

Yes it is.

I was think more like over 2-3 seconds, rather than just dumping the clutch.
Nothing I drive has ever had a clutch problem related to that.


Well, you say it like that and it sounds like a bad idea.

 

So you think a Volkswagen Golf TDI would make a great tow vehicle simply because it's a diesel? Or one of the high strung diesels used in some racing applications over in Europe? Come on now, that's just ridiculous.

Heavy duty gasoline engines "PERIOD" are also made to work. Ford doesn't make a long stroke modular engine(except GT500) that's not made to work. In fact, there are many satisfied owners that have used their 5.4L and 6.8L to tow trailers for over 200,000 miles without any problems.

Quietness has nothing to do with capability. As I stated above my 6.4L is far quieter than a 7.3L engine and produces far more power. The new 6.7L PSD is more powerful and quieter still. In my previous career I had two trucks with a 14L Detroit Series 60 engine, and two trucks with a Caterpillar C15. The Cats had more power and were much quieter. Noise output has no bearing on power output!

 

Rather than drag racing up a hill, which is pointless, how about several trucks hitch up to identical trailers in Boston and compare fuel expenditures when they arrive in Los Angeles?

 

When did i say the noise output affect power output? I was saying when I see a truck I would like to here it's diesel engine running and SOUNDING powerful. I said it's funny when you see a big lifted truck and can't even hear it. It's my preference. I like the noise.

 

Okay, let's think of this another way.

Do you think your driveline would survive for very long if you were to shift like that frequently while towing?

Automatics are designed to shift under power, this is why we can do this all day long with as heavy a trailer as you please. The 4R100 isn't a good example of a modern automatic.

I don't think I'll be driving to Texas any time soon, but if I do you can take mine for a spin. Absolutely no comparison to the 4R100!