ib516

280/540 stock, 380/780 with help from Edge....

YouTube Video

I didn't see this here before on a quick scan...hope it's not a repeat for you guys.

UnrulyNFS

Kewl!!

I hadn't seen it before. Can't see it now either cuz the link doesn't work for me, but at least you posted the numbers.

WUnderwood

thanks for the #s!

not too shabby

StrokeThisCTD

280/540 for a 6.7? Stock 600/610's do around 278/530. not impressed.

bigredBCS

ok now throw an exhaust on a 5.9 with like 3 mufflers one of which is packed tight with CRAP!!! and you would be impressed....and i imagine its tuned down a lil bit to help with emissions

RamNu2

It is also posted in the other or general section here.

973604x4

very interesting!!!

$oC@l CTD

That's pretty disappointing...even the flamethrower put down 620lbs stock...Is this the cab and chassis or the 2500/3500 truck because I think that a rated 350/650 vehicle shouldn't have 70hp and 110ftlbs loss through what is SUPPOSED to be a much better driveline...

jgiachino

The flamethrower numbers cant be right....hp and torque don't add up....even the guys on the ford site dont believe it...and there's no way they only loose 5% between the crank and the rear wheels....if i recall correctly it was something like 280hp and 620lbs....so 5% loss on tq and 20% loss on hp????

01smoker

Was that dyno test done on the early 6.7s in the cab & chassis rated at 325/610 or was it done on one of the 6.7s now that is rated at 350/650?

ramtd02

it is a 350/650. Remember guys, most of the losses arent driveline losses!!! The engine produces these numbers, then they stick the restrictive honeycombs and junk on them!!! I'll bet if you threw that exhaust on a 5.9 it would dyno down in the 240-250 range!!!

As for the 6.4 dynos, nobody can get a decent run out of them on the dyno, because they seem too be allways spiking!!!

03qclb5spd

The emissions system is likely restricting more power than an older system.
I don't believe the dyno numbers on the 6.4. See my opinion below.
I believe I saw the dyno vid to be 630 to the wheels. I called BS immiediately....there is just no way that the truck loses 75 horsepower but only 20lb-ft? I'm sure we will find the truth soon, someone will put one on and get the real numbers. I'm betting it does tq numbers close to the 6.7, 540ish.

abc4yew

The numbers that the manufacturers use are weighted average power numbers...of the engine but they are still just numbers....subject to variance with a word processor. I don't think saying 20% loss torque and 5% loss hp is the problem....I think it is the 280/630 is over twice the torque as hp...that there is the problem for me. Maybe it is the sequential turbos ability to hold torque higher during testing. I'd like to see a real world bone stock honest shootout between three regular cab 2wd trucks with the same size tires and the 6 speed autos. Just tell me that Dodge still doesn't have this same lame poc single Torque Converter...If it does then the Ford tranny is the difference. We all know that with the 2007 EGR engines that the Duramax will be able to make the power easiest when modded thanks to EFI live...until Marco gets a crack at it. ks

03qclb5spd

I agree. I really don't care much for the tests that magazines conduct with the trucks. Oftentimes they are so mismatched with different configurations. I say if you're gonna test, make them even....and don't tell me that's not possible, lol!

StrokeThisCTD

with a VGT thats supposedly more efficient, a bigger displacement engine, and a 6sp auto that i have read is one of the best out right now, i expected a little better.