Gas vs PSD
Postmaster
Joined: Apr 2008
Posts: 4,724
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From: Rogersville, TN
Thanks again for a good explaination. Please bare w/ me. I'm understanding whatcha saying. But I'm lost in how 1000 rpms makes a difference when there in go gain for me in those 1000 rpms. Tq is a very big key factor in getting a load moving. Hp is. Have fast the tq is avaible. I know what 2 is I've never been able to put it in words though. I'm not going to try right now.
We're not talking about my power band being 5000 rpms but can't get to those rpms. I make my power under 3500 rpms. There is no need for my truck to go that high. On the other hand the v10 makes its power over 3500 rpms. So it has a reason to go that high. I,m really trying to get my mind around this.
What keeping my tranny from down shifting? Or me shifting down?
We're not talking about my power band being 5000 rpms but can't get to those rpms. I make my power under 3500 rpms. There is no need for my truck to go that high. On the other hand the v10 makes its power over 3500 rpms. So it has a reason to go that high. I,m really trying to get my mind around this.
What keeping my tranny from down shifting? Or me shifting down?
Your 6.0 can downshift when the v10 downshifts. But then the v10 can downshift again and the 6.0 can't. For example, comparing my truck to Bill's. Bill can run 70 mph in 2nd gear with his v10. At 70 my 7.3 with a manual tranny is at the redline in 4th(same ratio as Bill's 3rd gear). My truck is making more engine torque at those rpms, but his truck is putting more tractive force to the ground because he is a gear lower and multipling his tq. My truck would be better than his at getting a load moving on a hill(more low end power plus better gearing), but his would be better than mine if we already had the load moving.
Elder User
Joined: Mar 2007
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From: at the truck pulls
Sound familiar?
I can't believe so many people are experts in someone else's truck and they have no clue what it does. Have you tuned yours and pulled?
Elder User
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From: at the truck pulls
He can have better tires, a better balanced truck, not over-apply the go-pedal, or a host of other things that allow him to tractor-pull better on dirt than the rest.
Or, it is simply the fact that he can stay in a lower gear and/or get higher speed because of his higher RPM range.
Or, it is simply the fact that he can stay in a lower gear and/or get higher speed because of his higher RPM range.
Elder User
Joined: Mar 2007
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From: at the truck pulls
Your above post basically says your 2002 V10 with no tuner outpulled a stock 6.4l PSD and beat everything else except a duramax with a 100 hp tune.
NO!!!!!!!!!!!!!!!!!!!! It doesn't "BASICALLY" say it, I did say it.
Please explain why someone asking for proof is being an idiot?
NO!!!!!!!!!!!!!!!!!!!! It doesn't "BASICALLY" say it, I did say it.
Please explain why someone asking for proof is being an idiot?
Postmaster
Joined: Oct 2006
Posts: 4,171
Likes: 12
From: SE Texas
The PCM WILL NOT allow a downshift if the engine RPM after the shift is going to exceed the rev limit or safe engine speeds. The factory redline on the 6.0L is 4500 RPM, and the limiter is 4000. I assure you that you are NOT seeing 4500-5000 RPM on that 6.0L on a downshift, or you'd be on the side of the road picking up pieces of the rods,pistons,etc. WOT upshifts are scheduled at approx 3600 rpms on a stock 6.0L.
JL
JL
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From: at the truck pulls
Again, where did you read this?
Elder User
Joined: Mar 2007
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From: at the truck pulls
The V10 is tuned from the factory to get the absolute best economy possible, while also satisfying the emissions requirements. There are very few specific strategies that allow open loop fuel enrichment at WOT. 14.64:1 air fuel at WOT is bad in the overall big picture of longevity and power production.
JL
JL
Postmaster
Joined: Oct 2006
Posts: 4,171
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From: SE Texas
while also satisfying the emissions requirements
JL
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Laughing Gas
Joined: Mar 2009
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From: Jessup, PA
I thought you were saying it in the above post because he asked you for race results.
Elder User
Joined: Mar 2007
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From: at the truck pulls
I don't do any tractor/sled pulls with my my truck either. Beating the **** out of a DD truck I depend on for personal and business use is idiotic IMO. I do enjoy watching actual tractors pull though, as I do the highly modified purpose built rigs. This whole light truck tractor pull thing is more of pecker measuring session IMO.
Under extreme loads if the engine temps get out of hand the truck will lose power. The extra fuel at WOT under those loads JL stated is a good. The T/H is great and works well however it is designed to work within certain parameters.
Under extreme loads if the engine temps get out of hand the truck will lose power. The extra fuel at WOT under those loads JL stated is a good. The T/H is great and works well however it is designed to work within certain parameters.
I began pulling in 1993 and have fun every time I do it, so far no breakage. Yeah mines a daily driver, but I can go out and buy a whole new truck if I break it. What's idiotic, IMHO, is when you could barely afford entry fee for the pull and if you break your bumming a ride to work. I have been blessed to not have ANY issues at all. Now having said that I'll be sunk.
However, I don't think pulling "beats the **** out of the DD, if done correctly. I started slow, I've watched pulls since before I can remember, literally because I've been there since I was 3 or 4. Take care of your equipment and it'll take care of you. I've tore up more on my truck yanking stumps, but then someone might think that's wrong too I guess.
Elder User
Joined: Mar 2007
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From: at the truck pulls
Yes, but in a tractor pull as I was referencing, would you really make that much more power? Sure if was running WOP everyday, that might be a good idea, but I'm doubtful you'll see any major gain. And from the sounds of it FORDTUF1 only does these pulls once in awhile.
I was AMAZED at what the SCT did for my truck, pulling my 10,500 5th wheel and the sled. In case someone missed it, or I left it out,
it was an auto
4 speed (and no they didn't have tow/haul in 02 on a V10)
3.73 gears
265/75/16 BFG A/T's (70 psi rear and 30 psi front, roughly)
JBA headers
K&N intake
Flowmaster 70 series
Cargo Master
Joined: Jan 2005
Posts: 2,413
Likes: 11
Tq is very important when it comes to getting a load moving, but it is still tractive force instead of engine torque that matters. When you are getting the load moving that tractive force can come from the engine's torque or from gearing.
Your 6.0 can downshift when the v10 downshifts. But then the v10 can downshift again and the 6.0 can't. For example, comparing my truck to Bill's. Bill can run 70 mph in 2nd gear with his v10. At 70 my 7.3 with a manual tranny is at the redline in 4th(same ratio as Bill's 3rd gear). My truck is making more engine torque at those rpms, but his truck is putting more tractive force to the ground because he is a gear lower and multipling his tq. My truck would be better than his at getting a load moving on a hill(more low end power plus better gearing), but his would be better than mine if we already had the load moving.
Your 6.0 can downshift when the v10 downshifts. But then the v10 can downshift again and the 6.0 can't. For example, comparing my truck to Bill's. Bill can run 70 mph in 2nd gear with his v10. At 70 my 7.3 with a manual tranny is at the redline in 4th(same ratio as Bill's 3rd gear). My truck is making more engine torque at those rpms, but his truck is putting more tractive force to the ground because he is a gear lower and multipling his tq. My truck would be better than his at getting a load moving on a hill(more low end power plus better gearing), but his would be better than mine if we already had the load moving.
Postmaster
Joined: Apr 2008
Posts: 4,724
Likes: 4
From: Rogersville, TN
However, I don't think pulling "beats the **** out of the DD, if done correctly. I started slow, I've watched pulls since before I can remember, literally because I've been there since I was 3 or 4. Take care of your equipment and it'll take care of you. I've tore up more on my truck yanking stumps, but then someone might think that's wrong too I guess.
If you paid for it, use it for how you see fit. 
Postmaster
Joined: Apr 2008
Posts: 4,724
Likes: 4
From: Rogersville, TN
Bill only has a 3.73 in his truck and his a 2v, so his won't compete with your 6.0. It has less hp, less low end power, worse rear end gearing and worse tranny gearing(unless he starts out in low).
Elder User
Joined: Mar 2007
Posts: 879
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From: at the truck pulls
chatting on a web forum
baseball (also boring)
golf (also boring)
tennis (also boring)
football and going to watch them
boating and water sports
golf (boring)
NASCAR
drag racing
driving to the store to get something you forgot (boring and a pita)
not making your grocery list out for the entire week (just wrong)
taking kids to play in band, soccer, little league, etc (most boring)
golf (boring)
hunting (you're really not hunting, you're WAITING) (REAL boring)
fishing (DITTO real boring)
delivering mail
going to concerts (harmful to hearing)
I could go on forever, what's the point? I know what it is do you?