Gas vs PSD

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Sep 2, 2010 | 01:57 PM

#7846

Johnny Langton

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Joined: Oct 2006

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From: SE Texas

Quote:

Originally Posted by dkf

Beating the **** out of a DD truck I depend on for personal and business use is idiotic IMO.

You wouldn't believe what I've put the F150 I drive everyday through. It's been through hell,but it gets proper maintenance, and has 245K trouble-free miles on it. It wears a 400 lb galvanized steel ladder rack with 3-5 ladders everyday, 2 saddle type toolboxes in the bed, a single custom plywood tool cabinet that takes up the entire supercab portion,and usually has the passenger seat full of stuff, and assorted materials in the bed. It's a little 4.6L 2V with a 4R70W, and a 3.55 locker in the back. It's never had a wrench on it for a single mechanical repair-nothing, nadda, zip.I go out every morning and it starts and takes me to work, then back home at the end of the day. I've spent as long as 4 hours towing a trailer loaded down with around 6500lbs or wire at 65 mph on the interstate with OD locked out going to a jobsite, and many,many more trips withing an hour's drive doing the same thing or similar.
JL

Sep 2, 2010 | 02:00 PM

#7847

Johnny Langton

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Joined: Oct 2006

Posts: 4,171

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From: SE Texas

Quote:

Originally Posted by Jrfish007

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.

There is a power gain and a torque gain by going to open loop fuel enrichment as soon as your foot goes WOT. How much depends on many things, but you can usually see 15-25 rwhp peak, but you'll see much more over the entire RPM range vs stock.
JL

Sep 2, 2010 | 02:10 PM

#7848

miller_feed

Hook it, I'll pull it.

Joined: May 2007

Posts: 15,037

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From: Grand Lake, La.

Quote:

Originally Posted by bill11012

How much money do you have in you truck, as far as mods go?

With the BTS trans, about $10,000.00.

EDIT: The trans rebuild is the only thing I paid labor on. Everything else was done in my shop at my house.

Sep 2, 2010 | 02:13 PM

#7849

Johnny Langton

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Joined: Oct 2006

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From: SE Texas

Quote:

Originally Posted by miller_feed

With the BTS trans, about $10,000.00.

So, around $14K in cost over a V10 truck?

It sure as hell should tow better.

Sep 2, 2010 | 02:17 PM

#7850

bill11012

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Joined: May 2009

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From: Texas

Quote:

Originally Posted by miller_feed

With the BTS trans, about $10,000.00.

Wow.

What kind of power are you making?

Sep 2, 2010 | 02:17 PM

#7851

miller_feed

Hook it, I'll pull it.

Joined: May 2007

Posts: 15,037

Likes: 4

From: Grand Lake, La.

Quote:

Originally Posted by Johnny Langton

So, around $14K in cost over a V10 truck?

It sure as hell should tow better.

Hell, I would pay more then that to keep the PSD.

Sep 2, 2010 | 02:23 PM

#7852

miller_feed

Hook it, I'll pull it.

Joined: May 2007

Posts: 15,037

Likes: 4

From: Grand Lake, La.

Quote:

Originally Posted by bill11012

Wow.

What kind of power are you making?

My buds truck that runs neck and neck with me puts out 450 RWHP and I think around 1,000 #torque. But my truck is heavier then his. Last year I ran a 9.4 @ 75.87 mph, in the 1/8th mile. I think I'm in the high 8's now with the BTS and live tuning from Jody at DP-TUNER.

Sep 2, 2010 | 02:23 PM

#7853

bill11012

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From: Texas

Quote:

Originally Posted by Johnny Langton

So, around $14K in cost over a V10 truck?

It sure as hell should tow better.

Just think of what could be done to a V10 with that kind of money.

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Sep 2, 2010 | 02:26 PM

#7854

miller_feed

Hook it, I'll pull it.

Joined: May 2007

Posts: 15,037

Likes: 4

From: Grand Lake, La.

Quote:

Originally Posted by bill11012

Just think of what could be done to a V10 with that kind of money.

Add the 4,300.00 I paid for the 7.3 option in 2000, then that is a lot more money.

Sep 2, 2010 | 02:38 PM

#7855

bill11012

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From: Texas

I could build a beast that would walk all over a 6.7 or even a tuned 6.4 with that kind of money.

Sep 2, 2010 | 02:44 PM

#7856

miller_feed

Hook it, I'll pull it.

Joined: May 2007

Posts: 15,037

Likes: 4

From: Grand Lake, La.

Quote:

Originally Posted by bill11012

I could build a beast that would walk all over a 6.7 or even a tuned 6.4 with that kind of money.

Bill, half of that was the trans rebuild. Don't you have the 4R100 also?

Remember, you have to pay to play.

Sep 2, 2010 | 02:48 PM

#7857

bill11012

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From: Texas

One with the 4R100 and one with the 5 speed.

I would do a TS swap before putting that kind of cash into a 4R100.

Sep 2, 2010 | 02:53 PM

#7858

miller_feed

Hook it, I'll pull it.

Joined: May 2007

Posts: 15,037

Likes: 4

From: Grand Lake, La.

Quote:

Originally Posted by bill11012

I could build a beast that would walk all over a 6.7 or even a tuned 6.4 with that kind of money.

Come on Bill, start building that "BEAST".

Sep 2, 2010 | 03:00 PM

#7859

bill11012

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From: Texas

I will at some point, but I have bigger priorities right now.

Sep 2, 2010 | 03:19 PM

#7860

phillips91

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Joined: Apr 2008

Posts: 4,724

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From: Rogersville, TN

Quote:

Originally Posted by exiled

You climb and you have it floored to keep speed and maybe accelarate . I put my truck on cruise and barley the tac moves if at all. I know the truck will move the laod w/ out a doubt. I wish everybody would understand this as well.

Let's say you are in 5th gear cruising at about 2,000 rpms. At that speed and rpm a stock 6.0 is making a MAX of 217 hp and has a tractive force of 1,534 in 5th gear, assuming a 3.73 gear(and assuming you are full boost without downshifting). To go that same speed in 4th gear a v10 with a 4.10 would have to turn 3,084 rpm. At that rpm the v10 is making 260 hp and has a tractive force of 1,837. That is a far cry from having to be floored to maintain speed.

Quote:

Originally Posted by exiled

What does your transmission have to do w/ your engine. Thoight we had the same transmission.

They do have the same transmission, but due to the rpm differences the v10 can always be at least one gear lower than the psd. Being able to turn more rpms allows you to stay in a lower gear longer, which helps you put more tractive force to the ground. That is why your truck pulls harder in 1st than it does 2nd, harder in 2nd than it does 3rd, and so on, even though the engine is making the exact same hp and torque at the flywheel. Gearing multiplies torque, which means you can have less engine torque but still put more torque to the ground.

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