7.3 vs 6.7 - Ford Powerstroke Diesel Forum
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post #1 of 156 Old 11-18-2011, 10:35 PM Thread Starter
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7.3 vs 6.7

raced one from a 30 mph roll and pulled on him hard he didnt have a chance.

his setup: 6in lift ccsb 37s w/20in rockstars very good lookin truck, i would love to have it.

morale of the story is tuned 7.3s dont be too scared of a big shiny stock 2011 6.7 with 37s

2000 7.3 F250 FX4 ext cab short box

Cobalt Pillar Trip pod gauges, trans temp, boost, pyro
4in down pipe to a 5in tip
KnN intake
Tuned by PHP
Banks big head waste gate
6in Pro comp lift
Mag hytec tranny pan
Diablo predator programmer (used for pulling codes)
Foil delete
ATS Turbo housing
Halo projector headlights
BUILT TRANNIE-
Euro taillights
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post #2 of 156 Old 11-19-2011, 04:11 AM
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NICE .


2000 DRW CC 7.3
Exterior: 08 Exterior Clone, 22.5's
Engine Mods: GTP38R WW2, 5 inch exhaust,T500, 6637, TW tunes,DI Up pipes, 6.7 fuel pump fuel system.
Trans Mods: 6.0 trans cooler, JW Valve body,Billet triple disc converter.
Sound Mods: 7" flip out tv, 3-way speakers all around, 12" sub, 500 watt amp.
Misc:dieselsite coolant filter, max ac assist, BRV, IHD,gauges, CCV

Next up power rear window
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post #3 of 156 Old 11-19-2011, 09:41 AM
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Great to hear that a 7.3 can still beat em

2007 F250 XL CCSB 2WD, Edge CTS, K&N AI

-Old Man's Truck-
2002 F250 Lariat CCLB 2WD, Boxes and custom ladder rack


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post #4 of 156 Old 11-21-2011, 03:24 AM
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He must not have been trying very hard cause that new 6.7 if trying would have smoked ya lol

2007 F250 XLT
6.0 POWERSTROKE
EGR DELETE KIT
AFE COLD AIR INTAKE
MAGNA FLOW EXHAUST
6" FABTECH DIRT LOGIC 4.0
37/13.5/20 TOYO OPEN COUNTRY
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post #5 of 156 Old 12-01-2011, 04:56 PM Thread Starter
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Quote:
Originally Posted by DDBCK View Post
He must not have been trying very hard cause that new 6.7 if trying would have smoked ya lol
A stock 6.7 w/37s n 20s crew isnt going to smoke most chipped diesels.

2000 7.3 F250 FX4 ext cab short box

Cobalt Pillar Trip pod gauges, trans temp, boost, pyro
4in down pipe to a 5in tip
KnN intake
Tuned by PHP
Banks big head waste gate
6in Pro comp lift
Mag hytec tranny pan
Diablo predator programmer (used for pulling codes)
Foil delete
ATS Turbo housing
Halo projector headlights
BUILT TRANNIE-
Euro taillights
Radar detector
Window tinted 20%
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post #6 of 156 Old 12-30-2011, 06:35 AM
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Quote:
Originally Posted by F250 Fever View Post
A stock 6.7 w/37s n 20s crew isnt going to smoke most chipped diesels.
I drove a new 11 with a 6.7 and it was fast but running 37's turns a stock motor into a dog, that new 6.7 would need a tuner just to get back up to stock power levels. Still though, 400hp is nothing to sneeze at and I think if the tuned 7.3 is putting out 400 hp then yes I can see the 7.3 tuner running all over a stock 6.7 with 37's.

I have a 10 6.4 with 35's and 4 1/2 inch lift and I can say you loose a lot of power going to big tires and lift. I also lost 1 mpg

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post #7 of 156 Old 12-30-2011, 02:51 PM
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Sorry bro, but you've got to have a lot more than a good tune in a 7.3 to run down a 6.7, even on big tires.
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post #8 of 156 Old 12-31-2011, 12:16 PM
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yea and no tuned 7.3 is putting down 400 your going to need some sticks and a turbo

2007 F250 king ranch 6.0 powerstroke
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post #9 of 156 Old 12-31-2011, 12:28 PM
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I think you guys are forgetting that a 6.7 is making 400hp at the crank, not the wheels. That puts it at similar power levels to a tuned 7.3 at the wheels... then add big tires to the 6.7 and it's not hard to believe that a tuned 7.3 would walk away...

03 F-250 7.3L, Sport, 4x4, Auto
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post #10 of 156 Old 01-01-2012, 06:19 AM
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Quote:
Originally Posted by Zander's 5.8 View Post
I think you guys are forgetting that a 6.7 is making 400hp at the crank, not the wheels. That puts it at similar power levels to a tuned 7.3 at the wheels... then add big tires to the 6.7 and it's not hard to believe that a tuned 7.3 would walk away...
Exactly
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