2015 GMC 3500 HD Tow Video's

[FishOnOne]

Here's some video's of the 2015 GMC HD.

Enjoy.... :B

Video 1

Video 2

[travelnutz]

jus2shy,

Yes, I was referring to the diesel engines as I had posted. Cummins doesn't make the 6.4 Hemi. It's made in Mexico where all the Fiat/Chrysler/ used Hemi's are and then shipped in the Do0dge/Ram HD pickup trucks which are only made in Mexico and imported into the USA and Canada for selling or the Mexican made Hemi engines could be shipped into the US ot Canada for other Fiat/Chrysler vehicles use. Many on the various forums still don't realize this! Foreign owned corporation, foreign made engines, foreign built trucks, then imported with the worker's wages and the profits going to the foreign countries. Sure helps the American and Canadian worker and the US and Canada economy doesn't it?

DUH! How uninformed many people are the in the USA and Canada! At least Toyota makes their trucks in the USA with American workers however, all profits do go to Japan. 1 out of 2 is better that 0 out of 2 or 3.

[jus2shy]

travelnutz wrote:
ib516,

Obviously YOU have never been to the Big 3 engineering, testing, and certification centers or you'd actually know something about how they are done! So apparant that you DON'T or even have a clue. Keep reading your Mopar fiction and your mind kept closed!

6.4 HEMI HD motor is SAE Certified: SAE Article link. However, you did bring up a curiosity on the Cummins and Ford 6.7 not being SAE certified and I haven't been able to drum up any SAE certification on those two motors SAE Certified Listings. Interesting indeed.

[rhagfo]

travelnutz wrote:
ib516,

Obviously YOU have never been to the Big 3 engineering, testing, and certification centers or you'd actually know something about how they are done! So apparant that you DON'T or even have a clue. Keep reading your Mopar fiction and your mind kept closed!

Yep for sure, Ford and Cummins fake their HP and Torque ratings!

That is why Ram is the Current King of the Hill and Ford is a close 2nd, (even though they need to do it with an F450)!

The New GM ran good, but I will say that if any one is fudging their numbers it is Ram/Cummins, and that would be low!

Anytime a 6 cyl, can match a a V8, I will take the IL6 any day.

If Ford had gone with Cummins in the beginning there would be a lot more on the road (Cummins).

[travelnutz]

ib516,

Obviously YOU have never been to the Big 3 engineering, testing, and certification centers or you'd actually know something about how they are done! So apparant that you DON'T or even have a clue. Keep reading your Mopar fiction and your mind kept closed!

[ib516]

1wayhighway wrote:

Hey IB,

Looking at your signature and see you went back to gas. Looks like you have had a lot of experience with the diesel's and was just curious why you went back to gas? I think I see a diesel in my future so just trying to educate myself.

Thanks,

Dan R

Link to where I laid it all out

[ib516]

travelnutz wrote:
Quote:

"When manufacturers certify HP ratings, there typically is an SAE representative to overlook the rating process."

Not true!

Cummins makes the diesel and sells it to Fiat/Chrysler/Dodge/Ram and Cummins gives their engines the HP and TQ values, NOT SAE. Not SAE certified and never was!

Ford uses 3-5 engines they'd test in the EEE building and they take the single highest values of the 3-5 (mix or match) with the standalone bare engines on the test stand not as in ready to install configuration. Not SAE certified!

GM Duramax tests and certifies with all SAE standards met completely and being present with ready to install configuration engines as on the assembly line. It IS SAE certified HP & TQ and GM displays the "SAE Certification Documents"!

YES, "There is a strict SAE standard for engine hp rating."

A little news for some of you posters: If the engine doesn't have the actual certified TQ & HP of another engine, it will NOT pull the same load equal or perform the same as the gear ratios of independent test venues are always matched as close as possible or it would be a tainted critera test and results. Some of you need to do some reading and research before you write your foolish posts.

Why do you think the lowly TQ & HP rated Duramax in production built trucks smokes both Ford and Cummins with much higher to much claimed TQ & HP and has for so many years now? Doesn't take half a brain to figure out why! NAA, no one would fudge any numbers or circumvent the established written rules of SAE to sound better in their favor, would they???

[travelnutz]

Quote:

"When manufacturers certify HP ratings, there typically is an SAE representative to overlook the rating process."

Not true!

Cummins makes the diesel and sells it to Fiat/Chrysler/Dodge/Ram and Cummins gives their engines the HP and TQ values, NOT SAE. Not SAE certified and never was!

Ford uses 3-5 engines they'd test in the EEE building and they take the single highest values of the 3-5 (mix or match) with the standalone bare engines on the test stand not as in ready to install configuration. Not SAE certified!

GM Duramax tests and certifies with all SAE standards met completely and being present with ready to install configuration engines as on the assembly line. It IS SAE certified HP & TQ and GM displays the "SAE Certification Documents"!

YES, "There is a strict SAE standard for engine hp rating."

A little news for some of you posters: If the engine doesn't have the actual certified TQ & HP of another engine, it will NOT pull the same load equal or perform the same as the gear ratios of independent test venues are always matched as close as possible or it would be a tainted critera test and results. Some of you need to do some reading and research before you write your foolish posts.

Why do you think the lowly TQ & HP rated Duramax in production built trucks smokes both Ford and Cummins with much higher to much claimed TQ & HP and has for so many years now? Doesn't take half a brain to figure out why! NAA, no one would fudge any numbers or circumvent the established written rules of SAE to sound better in their favor, would they???

[1wayhighway]

ib516 wrote:

texasclarks wrote:
A pretty fair test (video 2). I hope they do the SuperDuty and RamHd soon.

x2.

I checked the engine temp gauge near the end of the video. Flat to the floor up that 7 mile long grade (trip said 7.4 miles or something) and no overheating (at least not on the digital imitation gauge). Pretty impressive.

Hey IB,

Looking at your signature and see you went back to gas. Looks like you have had a lot of experience with the diesel's and was just curious why you went back to gas? I think I see a diesel in my future so just trying to educate myself.

Thanks,

Dan R

[FishOnOne]

jus2shy wrote:

catfishmontana wrote:

hoopers wrote:

ksss wrote:
When GM made the updates in 2011, they were still below Ford in advertised power, but the GM twins swept nearly every pull off. I am not sure that will happen again with the revised 6.7 and Dodge now at 850. I am trying to decide if I care or not.

I met with the my Chevy commercial sales guy a couple days ago on a 2015 3500 SRW CC, LTZ. The numbers make sense. The value of my low mile LBZ is outstanding, makes stepping up to 2015 much easier.

I hate to say it, but I wonder how accurate all these advertised HP numbers are from the mfgr's? Is there a standard? Who checks the numbers to make sure they are accurate?

Yes, there is a standard.

When manufacturers certify HP ratings, there typically is an SAE representative to overlook the rating process. There is a strict SAE standard for engine hp rating. When engines are dyno'd, they typically have the full dress on them as well (PS pump, alternator, waterpump, ac compressor, etc). SAE link. So really look for that SAE certification when staring at power levels. However, what isn't rated so much is the HP curve and Torque curve. Remember that the ratings are merely peak numbers. So if 2 engines are within spitting distance of each other for HP (maybe within 10% of peak power), I'd pick the engine with the fatter torque curve. This would mean more available horsepower in more areas of the curve. I've done a comparison of the 390HP rated Ford 6.7L (initial power figure release) versus the F-150 tuned 6.2L gas motor. You can see how the horsepower is more readily available at just about any speed on the 6.7 versus the 6.2. I can only imagine the disparity growing with the 400/800 rating and the newest 440/860 rating. LINK

What I really would like to see is power and torque vs. percent throttle plotted. All the ratings are done at WOT which doesn't illustrate how efficient a powertrain produces power.

[Cummins12V98]

hoopers wrote:

ksss wrote:
When GM made the updates in 2011, they were still below Ford in advertised power, but the GM twins swept nearly every pull off. I am not sure that will happen again with the revised 6.7 and Dodge now at 850. I am trying to decide if I care or not.

I met with the my Chevy commercial sales guy a couple days ago on a 2015 3500 SRW CC, LTZ. The numbers make sense. The value of my low mile LBZ is outstanding, makes stepping up to 2015 much easier.

I hate to say it, but I wonder how accurate all these advertised HP numbers are from the mfgr's? Is there a standard? Who checks the numbers to make sure they are accurate?

Most of the time the advertised HP numbers are at the flywheel. Usually you can deduct 20% from that AND COME UP WITH REAR WHEEL HP. I put my 11 HO RAM on the Dyno in May of 12 in Las Vegas and hit 304hp. 350hp x 80% = 280. So I would say RAM under rates their trucks. The same day a 12 Ford 400hp hit about 320 that is 80%.

[jus2shy]

catfishmontana wrote:

hoopers wrote:

ksss wrote:
When GM made the updates in 2011, they were still below Ford in advertised power, but the GM twins swept nearly every pull off. I am not sure that will happen again with the revised 6.7 and Dodge now at 850. I am trying to decide if I care or not.

I met with the my Chevy commercial sales guy a couple days ago on a 2015 3500 SRW CC, LTZ. The numbers make sense. The value of my low mile LBZ is outstanding, makes stepping up to 2015 much easier.

I hate to say it, but I wonder how accurate all these advertised HP numbers are from the mfgr's? Is there a standard? Who checks the numbers to make sure they are accurate?

Yes, there is a standard.

When manufacturers certify HP ratings, there typically is an SAE representative to overlook the rating process. There is a strict SAE standard for engine hp rating. When engines are dyno'd, they typically have the full dress on them as well (PS pump, alternator, waterpump, ac compressor, etc). SAE link. So really look for that SAE certification when staring at power levels. However, what isn't rated so much is the HP curve and Torque curve. Remember that the ratings are merely peak numbers. So if 2 engines are within spitting distance of each other for HP (maybe within 10% of peak power), I'd pick the engine with the fatter torque curve. This would mean more available horsepower in more areas of the curve. I've done a comparison of the 390HP rated Ford 6.7L (initial power figure release) versus the F-150 tuned 6.2L gas motor. You can see how the horsepower is more readily available at just about any speed on the 6.7 versus the 6.2. I can only imagine the disparity growing with the 400/800 rating and the newest 440/860 rating. LINK

[catfishmontana]

hoopers wrote:

ksss wrote:
When GM made the updates in 2011, they were still below Ford in advertised power, but the GM twins swept nearly every pull off. I am not sure that will happen again with the revised 6.7 and Dodge now at 850. I am trying to decide if I care or not.

I met with the my Chevy commercial sales guy a couple days ago on a 2015 3500 SRW CC, LTZ. The numbers make sense. The value of my low mile LBZ is outstanding, makes stepping up to 2015 much easier.

I hate to say it, but I wonder how accurate all these advertised HP numbers are from the mfgr's? Is there a standard? Who checks the numbers to make sure they are accurate?

Yes, there is a standard.

[ksss]

shelbyj wrote:
One thing that I don't like about their test runs is how they just "let" the tranny do the work. If I'm towing up a long grade like that I almost always put it in the gear it needs and go. Sometimes the tranny doesn't know best and with that last dodge video it was hunting quit a bit. No bueno.

I agree, when I am pulling heavy over a pass, I put in manual and shift gears myself. It runs cooler that way.

[hoopers]

ksss wrote:
When GM made the updates in 2011, they were still below Ford in advertised power, but the GM twins swept nearly every pull off. I am not sure that will happen again with the revised 6.7 and Dodge now at 850. I am trying to decide if I care or not.

I met with the my Chevy commercial sales guy a couple days ago on a 2015 3500 SRW CC, LTZ. The numbers make sense. The value of my low mile LBZ is outstanding, makes stepping up to 2015 much easier.

I hate to say it, but I wonder how accurate all these advertised HP numbers are from the mfgr's? Is there a standard? Who checks the numbers to make sure they are accurate?