Cubic inches vs. boost
Fleet Owner
Joined: Jun 2004
Posts: 25,090
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From: Rio Rico, AZ.
I think the biggest difference between the 7.3 and the 6.0 is the amount of valves per cylinder, plus the updated turbo and engine management. The 6.0's ability to breath more gives it the advantage. More in=more out.
Posting Guru
Joined: Jul 2002
Posts: 1,785
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From: Paola, KS
Originally Posted by Kwikkordead
I think the biggest difference between the 7.3 and the 6.0 is the amount of valves per cylinder.
Matt is 100% right on everything he has stated so I wouldn't even bother arguing.
Postmaster
Joined: Jan 2004
Posts: 4,758
Likes: 7
From: colorado
Originally Posted by Budkole
Maybe i should have spell it out for you..... Stock.
anybody putting that much hp in the thing needs a muscle car, not a tow vehicle!
Nether was designed to run with that much hp.
anybody putting that much hp in the thing needs a muscle car, not a tow vehicle!
Nether was designed to run with that much hp.
Fleet Owner
Joined: Jun 2004
Posts: 25,090
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From: Rio Rico, AZ.
I can't say it as well as Banks can. He's mostly trying to sell his products, but if you read past that it becomes easier to understand why the 6.0 is more powerful. It's designed to displace more air even though it's smaller in physical displacement.
http://www.bankspower.com/Tech_bigdensity.cfm
http://www.bankspower.com/Tech_bigdensity.cfm
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Senior User
Joined: Mar 2004
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I can say that before this thread I was actually anti 6.0, but dont get me wrong, im still pro 7.3. But now i have learned alot more about the 6.0 and its an excellently designed engine. I see displacement really has no relavence, for the 6.0. From what i understand the head design along with other things more than make up for that. Yeah it seems that the 7.3 and the 6.0 have nothing in common except that fact they are both in fords and use diesel fuel. Anyways, a big thanks to everyone for all the great info.
Postmaster
Joined: Sep 2004
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From: Utopia
If one could build an upscaled model of a 6.0 to 7.3 displacement, and everything kept proportional, turbo, injectors, rods, crank, etc...which motor would make more power the 6.0 or the mutant 7.3 liter 6.0?
Post Fiend
Joined: Jul 2005
Posts: 14,582
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From: 21791
the VT444. the volumetric efficiency will be close to that of the 6.0, so the extra displacement would be an added bonus. more torque i'd guess. where is matt to chime in on this?
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Posting Guru
Joined: Jul 2002
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From: Paola, KS
Originally Posted by Customz
If one could build an upscaled model of a 6.0 to 7.3 displacement, and everything kept proportional, turbo, injectors, rods, crank, etc...which motor would make more power the 6.0 or the mutant 7.3 liter 6.0?
Edit: I am referring to the main caps of a 7.3 wonder how long they would hold 700hp at close the 5000 rpm?
Last edited by Brian460; Nov 10, 2005 at 07:17 PM.
Former Vendor
Joined: Mar 2004
Posts: 4,362
Likes: 3
From: Hendersonville, NC
At precisely the same volumetric efficiency, compression and stoichometric ratio (assuming the same overall burn rate- highly theoretical), then 7.3 liters would yeild 21.6% more peak torque. Assuming the torque curve was identical (only if the engine geometry itself was exactly the same, exluding bore size- which would be nearly impossible) then the power output would also be 21.6% more likewise.
I'm pretty sure common sense will answer that- but that negates the purpose of the argument.
BTW, the 6.0 thankfully doesn't have main caps to deal with, it only has a bedplate.
I'm pretty sure common sense will answer that- but that negates the purpose of the argument.
BTW, the 6.0 thankfully doesn't have main caps to deal with, it only has a bedplate.
Former Vendor
Joined: Mar 2004
Posts: 4,362
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From: Hendersonville, NC
Originally Posted by Customz
I knew common sense would answer that...I wonder if someone else has it?
BTW, why would the proportional bore be impossible?
BTW, why would the proportional bore be impossible?
Fleet Mechanic
Joined: Feb 2004
Posts: 1,816
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From: River Valley AR
All other thing being equal, more displacement will give more power, but RPM also comes into play. More displacement means bigger components which don't move as fast. Think about some of the Indy-car style motors, 160 cubes or so and hitting 1,000 hp and up to 20,000 RPM, maybe more. Torque and horsepower are the key words to understanding power. The word power by itself is too vauge (sp).
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