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How much horsepower and torque on stock 6.7

75K views 23 replies 17 participants last post by  Powder_Keg 
#1 ·
Sorry guys for dumb question but how much horsepower and torque does a stock 6.7 have? Thanks in advance for answers and again sorry for dumb question just need to know
 
#2 ·
350/650 07.5-2011
350/800 Possible 2011.5-and newer

The Hp comes on sooner on the newer 6.7 and Tq is flat.
 
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#3 ·
The stock trucks that I have seen dyno sheets on for stock is around 275hp and 540ftp. Ratings and actuals are never the same.
 
#4 ·
That's the difference between flywheel and rear wheel hp.
 
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#5 ·
Mine wasn't stock but smarty jr set to 3 timing 4 everything else stock. Numbers in my sig. I can't complain.
 
#9 ·
I dynoed at 315/570 with just egr & dpf deleted with sims, stock down pipe. The torque is lame but it was basicly "free" HP as no fuel was added.
 
#10 ·
Mine completely bone stock ( egr and everything ) on stock tires with the manual put down a best run of 305/575 iirc. The sheet is in the truck but it's raining and I'm lazy right now. All other pulls were within +\- 5 of each other. I didn't really see a difference between 5th and 6th gear pulls. My best ones by a very small margin was the 6th gear pulls.

Funny thing is everyone was saying " dang not one puff of smoke " I don't think they knew it was a 6.7L with all the bs on it.

Can't wait to do a stock power deleted run to see the difference.:thumbsup:
 
#11 · (Edited)
I overloaded the truck a wee bit, but I don't have a programmer or anything, just opened the intake side up and 5" tbe, I pulled the load over 650miles, and avg'd <8mpg. From North of Columbus, OH to home (just south of Atlanta, GA) I' had to downshift to 4th 2 times on 75. Cincy to Florence KY hill right after the bridge on I-75, and Jelico. 43 mph... yuk, such a head/side wind on me on 71S that I could barely keep 60-65mph once we got in the south, could run 70ish. stopped @ Cat scale, with 1/2 tank fuel, the GCVW was 28300. The Timbrens I added performed like a top, it rode really well with all the weight.
 
#12 ·
powder keg I am real surprised that it was able to put 575 to the ground. I thought with a starting point of 610 at the motor it would lose more than 35ft/lbs at the wheels.

I wonder if they are really making only 610 in the manual equipped trucks or if they are getting more than advertised.

Who has some dyno numbers for a stock truck with auto trans?? I would like to see them.
 
#24 ·
That's what I would have thought. But unless there was a consistent error on the dyno, I have to believe it's correct.


-Powder Keg
 
#13 · (Edited)
I never got my truck dyno'd stock but Diesel Power Magazine did an article comparing a 6.7 to a 5.9 awhile ago and they posted a stock 6.7 at 259 HP and 487 tq rear wheel power of course.
 
#14 · (Edited)
There are now 4 HP and torque ratings for the 6.7

2007 6.7L Cab and Chassis 305HP/610lb.ft with either the Aisin 6spd Automatic or the G56 6spd manual gearbox

2007.5 (50 state legal) 6.7L 350HP/650lb.ft with 68RFE automatic

2007.5 350HP/610lb.ft with G56

2011.5 350HP/800lb.ft with 68RFE automatic
 
#15 ·
There are now 4 HP and torque ratings for the 6.7

2007 6.7L Cab and Chassis 305HP/610lb.ft with either the Aisin 6spd Automatic or the G56 6spd manual gearbox

2007.5 (50 state legal) 6.7L 350HP/650lb.ft with 68RFE automatic

2007.5 350HP/610lb.ft with G56

2010.5 350HP/800lb.ft with 68RFE automatic
I take it you mean 2011.5 for that last one.
 
#20 ·
No change in HP. It was released the same day they released the torque. Its now a 350/800 instead of 350/650
 
#22 ·
Don't know the official date but I do know yours is not a 2011.5
The 2011.5 were being made I beleive this month.
 
#23 ·
There is STILL not a 2011.5. The 800 doesn't start production until next Monday...............
 
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