RV Trip Planning Discussions

Go Back   iRV2 Forums > POWER TRAIN GARAGE FORUMS > Powerstroke Engine Forum
Click Here to Login

Join iRV2 Today

Mission Statement: Supporting thoughtful exchange of knowledge, values and experience among RV enthusiasts.
Reply
 
Thread Tools Search this Thread Display Modes
 
Old 01-23-2011, 12:06 PM   #1
Senior Member
 
Half Dimes's Avatar
 
Florida Cooters Club
Appalachian Campers
Coastal Campers
Carolina Campers
Join Date: Sep 2003
Location: Nature Coast FL
Posts: 1,711
6.7 PSD Specs

The horsepower and torque specs for the new 6.7 for pickup trucks are 390 and 735 respectively. The same engine in the chassis cab is rated at 300 and 660. Source for these numbers are the latest Ford on-line catalogs found here.

My question is why the difference? Tow ratings seem to have a similar discrepancy also. I've asked this question at two Ford dealerships and don't get much more than a shrug of the shoulders. Almost seems like the pickup numbers are puffed up for competitive purposes.
__________________

__________________
Dave & Jo Ann
2008 HitchHiker Champagne 35LKRSB GONE | 2011 F350 Lariat 6.7PSD GONE | Many great memories!
Half Dimes is offline   Reply With Quote
Join the #1 RV Forum Today - It's Totally Free!

iRV2.com RV Community - Are you about to start a new improvement on your RV or need some help with some maintenance? Do you need advice on what products to buy? Or maybe you can give others some advice? No matter where you fit in you'll find that iRV2 is a great community to join. Best of all it's totally FREE!

You are currently viewing our boards as a guest so you have limited access to our community. Please take the time to register and you will gain a lot of great new features including; the ability to participate in discussions, network with other RV owners, see fewer ads, upload photographs, create an RV blog, send private messages and so much, much more!

Old 01-23-2011, 12:54 PM   #2
Moderator Emeritus
 
RustyJC's Avatar


 
Texas Boomers Club
Join Date: Jul 2000
Location: Cypress, Texas USA
Posts: 8,854
Fleet owners and hotshot drivers (the primary market for C&C trucks) are more interested in long term cost of ownership, not necessarily the highest BHP and torque ratings on the block. As consumers, at what point is enough, enough? My pore ole 350 BHP/650 ft-lb Cummins does everything I need to do (by the way, the same engine in the Dodge C&C is also derated to 305 BHP/610 ft-lb). I guess to a lot of people in the consumer market, ratings and magazine tests sell trucks, though.

To each his/her own.

Rusty
__________________

__________________
2016 Ram Longhorn 3500 Dually 4x4 CCLB, 385/900 Cummins, Aisin AS69RC, 4.10
2014.5 DRV Mobile Suites 38RSSA #6972
Come join us on a TEXAS BOOMERS rally!
RustyJC is offline   Reply With Quote
Old 01-23-2011, 04:53 PM   #3
Senior Member
 
Half Dimes's Avatar
 
Florida Cooters Club
Appalachian Campers
Coastal Campers
Carolina Campers
Join Date: Sep 2003
Location: Nature Coast FL
Posts: 1,711
The only reason I bring this up is that we've had considerable mechanical problems with our current tow vehicle to the point I have little confidence in it. So, I've been window shopping.

Determined that the new F350 4x2 supposedly has about the same fifth wheel towing capacity (20,800 lbs) as my older F450. At least that's what the pickup specs say. When you check the F350 chassis cab version, the number drops to 15,900 lbs. My rig weighs in at 16,500 lbs. Believe the F350 pickup specs and I have a comfortable margin. With the chassis cab specs, I'm overweight.

The new F450 pickup is now nothing more than an F350 with slightly larger brakes and a higher axle ratio and can't be had in a 4x2. And the numbers on that model are just as suspect.

Frankly, I'm just annoyed at the numbers game where calculations seem to be made in the sales dept instead of the engineering area.
__________________
Dave & Jo Ann
2008 HitchHiker Champagne 35LKRSB GONE | 2011 F350 Lariat 6.7PSD GONE | Many great memories!
Half Dimes is offline   Reply With Quote
Old 05-04-2011, 06:45 AM   #4
Senior Member
 
yogi154's Avatar
 
Join Date: Mar 2009
Location: Peotone ILL
Posts: 104
Dave ...I tought the same thing so I posted the question on a Ford owners web fourm. The Chassis trucks have a differant Turbo so less Hp and Torque.
I was looking to have an F 550 built with all the bells, including air ride. The problem was the custom builder said they reprogram to 395 Hp. That was a Lie, it can't be done as per Ford in Dearborn (email). I know the F 550 would be a Great Truck but I hate being lied to. The cost of the F 550 was a whopping $ 92,500 with All the Bells and it looks Great.
That being said I shelved the whole thing for now.

Wayne
__________________
Wayne & Marti , Yogi Dog Ford 2012 F350 PSD Old Blue ....Mobile Suite 2012 38 REB3 w/ Vanity Slide Peotone , Illinois VIET NAM VET 1st CAV 70-71
yogi154 is offline   Reply With Quote
Old 05-04-2011, 07:13 AM   #5
Senior Member
 
Ford Super Duty Owner
Join Date: Jan 2011
Location: Kitts Hill, OH
Posts: 2,139
As rusty pointed out there are different customers. hence the different ratings. Drivers of the commericial trucks sometime are just hired drivers and thus the need for more reliability/longjevity Vs power.
If they did change the turbo it was probibly to get it to spool up quicker not to limmit the HP and TQ. that is very easly done on the new ones with a computer chip.
395 HP is very possible (no matter what Ford tells you)with just a computer reprogram, HOWEVER it would very likely shorten the life of the smaller turbo and void the warrenty on the engine.
__________________
(RVM#26) THE U-RV 94 F-700/24 foot U-haul box home built RV
Mekanic is offline   Reply With Quote
Old 05-05-2011, 05:49 AM   #6
Member
 
Join Date: Feb 2011
Posts: 95
Get a used Freightliner sport chassis, it will be twice the truck the F550 is in capacity, and you could find a used one for 60k.

Quote:
Originally Posted by yogi154 View Post
Dave ...I tought the same thing so I posted the question on a Ford owners web fourm. The Chassis trucks have a differant Turbo so less Hp and Torque.
I was looking to have an F 550 built with all the bells, including air ride. The problem was the custom builder said they reprogram to 395 Hp. That was a Lie, it can't be done as per Ford in Dearborn (email). I know the F 550 would be a Great Truck but I hate being lied to. The cost of the F 550 was a whopping $ 92,500 with All the Bells and it looks Great.
That being said I shelved the whole thing for now.

Wayne
__________________

aspeyrer is offline   Reply With Quote
Reply



Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
6.7 Ford Diesel Forum jojolima Powerstroke Engine Forum 9 06-29-2011 08:31 PM
I need some specs on my 81 Chieftain Lone_Star Vintage RV's 6 06-12-2010 08:56 PM
alignment Spec's tillbuilt Alpine Coach Owner's Forum 3 01-09-2010 11:42 AM
7.3 PSD, experiencing significant loss of power with truck camper+towing saturn vue Hemi Powerstroke Engine Forum 24 12-09-2008 04:22 PM

» Featured Campgrounds

Reviews provided by


Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -6. The time now is 08:37 AM.


Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2019, vBulletin Solutions, Inc.