F550 TORQUE
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Freshman User
Joined: Oct 2006
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F550 TORQUE
I currently own a 2012 F350 which I believe rates the 6.7 at 400hp and 800fp torque. Been looking at a class c rv on a f550 chassis which rates the 6.7 at 300hp and 660fp torque. I like the performance of mine when pulling heavy trailers. Is there really a difference or just the way the ratings are done? Thanks.
Post Fiend
Joined: Jan 2009
Posts: 6,521
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From: Greenwood, SC
Chassis cab trucks have differences in the turbo, fuel system, and exhaust. The engine "tune" is also different. You are also correct in that the rating system is different, but still, the engine has slightly less power than the pickups.
Read the post by bigf350 towards the bottom in the tech folder. https://www.ford-trucks.com/forums/9...ch-folder.html
Read the post by bigf350 towards the bottom in the tech folder. https://www.ford-trucks.com/forums/9...ch-folder.html
Last edited by ruschejj; Sep 19, 2014 at 09:18 AM. Reason: Add link
Elder User
Joined: Jul 2010
Posts: 501
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From: Pacific NW
Just to add the reasoning towards the different power rating, it isn't just about durability but also emissions. Commercial vehicles over a certain GVWR rating actually have to meet different emissions targets versus vehicles that have a lower GVWR. Unfortunately I don't recall where that line is drawn.
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