Gas vs PSD
Posting Guru
Joined: Oct 2009
Posts: 2,066
Likes: 4
From: Rogue River, Oregon
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.
Senior User
Joined: Nov 2009
Posts: 219
Likes: 0
Is your v-10 totally stock?
Super Moderator
Joined: Aug 2003
Posts: 25,479
Likes: 742
From: Isanti, MN
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?
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?
Senior User
Joined: Nov 2009
Posts: 219
Likes: 0
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.
Postmaster
Joined: Apr 2008
Posts: 4,724
Likes: 4
From: Rogersville, TN
I would go further than that and say I'd like to see a 6.0L/6.4L auto and manual run in a similar test as to what we did in Millersburg. I'm pretty confident the 5R110 would put a hurtin' on the ZF6 on a very steep grade for two reasons.
Turbocharged engines need time to build boost, and every time you shift you'd have to build boost all over again. The auto can shift with power being applied so there's no lost boost.
Secondly, the torque converter makes launching that much weight on a grade a stupidly simple affair. Mash the go pedal, release the stop pedal, and away we go. No burnt up clutches, no stalled engines, just seamless power.
Turbocharged engines need time to build boost, and every time you shift you'd have to build boost all over again. The auto can shift with power being applied so there's no lost boost.
Secondly, the torque converter makes launching that much weight on a grade a stupidly simple affair. Mash the go pedal, release the stop pedal, and away we go. No burnt up clutches, no stalled engines, just seamless power.
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.
Super Moderator
Joined: Aug 2003
Posts: 25,479
Likes: 742
From: Isanti, MN
Super Duty pickups aren't heavy duty...they are't even medium duty! Heavy duty engines do NOT have 8 cylinders.
FTE Stories
Ford Trucks for Ford Truck Enthusiasts
Top 6 Best Deals Available on New Fords & Lincolns Right Now
Brett Foote
This Hennessey Takes the Expedition Tremor's Off-Roading Capability to the Next Level
Verdad Gallardo
Top 10 Fords at 2026 Carlisle Ford Nationals
Joe Kucinski
3 Best / 3 Worst Parts of Modern Ford Ownership
Brett Foote
10 Amazing Upgrades That Solve Common Ford Truck Owner Headaches
Pouria Savadkouei
Every 2026 Ford Engine Explained
Brett Foote
10 Ugly Ford Trucks That We Still Kinda Love
Joe Kucinski
10 Things Every Truck Owner NEEDS (2026 Edition)
Michael S. Palmer
Rezvani's Latest Post-Apocalyptic Monster Is a Ford F-150 Raptor Underneath
Verdad Gallardo
Senior User
Joined: Nov 2009
Posts: 219
Likes: 0
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.
Posting Guru
Joined: Oct 2009
Posts: 2,066
Likes: 4
From: Rogue River, Oregon
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.
Thread Starter
|
Modular motor junkie
Joined: May 2009
Posts: 6,190
Likes: 8
From: Texas
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.
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.
Super Moderator
Joined: Aug 2003
Posts: 25,479
Likes: 742
From: Isanti, MN
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!
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.
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.
Senior User
Joined: May 2004
Posts: 407
Likes: 0
From: Humble, Texas
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?
Senior User
Joined: Nov 2009
Posts: 219
Likes: 0
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!
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!
Super Moderator
Joined: Aug 2003
Posts: 25,479
Likes: 742
From: Isanti, MN
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!