2018 Ram w/Hood Scoop

[FishOnOne]

Looks like drittal was right. Ram appears to be adding a hood scoop to increase power output for 2018. The grill shape looks like it may resemble that of the 1500.

Link

[Retired_JSO]

Ford will destroy their inhouse diesel just as they did with the IH power plants with their HP wars.

[fla-gypsy]

It's just more absurd power wars I don't care about.

[nevadanick]

They have to get more air in to keep ex temps in check. Making power is the easy part.

[Bedlam]

The Mad Norsky wrote:

spoon059 wrote:
I was just reading that GM may have forgone the Bosch fuel pump for Denso in their new 2017 Duramax. That, to me, is more important of a change... reliability.

Never heard of Denso before. Can someone educate me a little???? Please remember I am Scandinavian, so type slowly. :B

Here is a link to start your reading:

http://www.denso-am.com/products/automotive-aftermarket/diesel-components/common-rail-components/

[ShinerBock]

FishOnOne wrote:

Ford went from 860 to 925 with just a tune and reports there's still plenty left from the engine/transmission design.

The Ford 6.7L changed to a bigger turbo to get there 2015 numbers of 440hp and 860 lb-ft. I have no doubts that they could not have gotten to that 925 lb-ft without that larger turbo either. The Cummins 6.7L went from 650 to 900 lb-ft without any mechanical changes to the engine.

If the old "there is no replacement for displacement" adage holds true power wise, the Cummins 6.7L is the biggest. However, I think they would need to step up to the added fuel pressure of the CP4 and the added precision of the piezo injectors to get there with emissions. They way those things are failing on the Powerstrokes and Duramax's, I would rather have lower power numbers.

Reputable tuners like Ryan Milliken and ATS have stated that the Cummins 6.7L(deleted and intake) can get up to a little over 500 hp/1,100 lb-ft at the wheels. That would be about 575 engine hp given a 15% drivetrain parasitic loss. The only thing holding it back is the turbos. Once you add bigger turbos and get to 700 hp, then it is the injectors and fueling holding you back.

[FishOnOne]

The Mad Norsky wrote:

spoon059 wrote:
I was just reading that GM may have forgone the Bosch fuel pump for Denso in their new 2017 Duramax. That, to me, is more important of a change... reliability.

Never heard of Denso before. Can someone educate me a little???? Please remember I am Scandinavian, so type slowly. :B

They use a Denso HPFP in the baby Duramax used in the Colorado. It also runs at 29k psi.

[The_Mad_Norsky]

spoon059 wrote:
I was just reading that GM may have forgone the Bosch fuel pump for Denso in their new 2017 Duramax. That, to me, is more important of a change... reliability.

Never heard of Denso before. Can someone educate me a little???? Please remember I am Scandinavian, so type slowly. :B

[FishOnOne]

drittal wrote:
I don't see an end in sight.

Ram was able to go from 850 to 900 ftlbs just by tune. Get more air packed into the cylinders by Ram air and/or bigger turbo.

Ford jumped from to 925 with tune and bigger turbo and likely have room to grow.

I don't know what GM did, but I'm pretty sure they will have room to grow.

Right now, the limiting factors for all will be everything behind the motor. Nobody is really quite certain of the Aisin capability, just guess-timates. Ford trans capacity is well known. We all thought the Alison was max'd with the last gen duramax, but here it is again. Was it beefed up, or just more torque management?

I personally think this has gone to silly levels. A lighter diesel in the 550-600TQ range in a 250/2500 would be more than enough for the average RV'er, but 'MURICA!!!!

Ford went from 860 to 925 with just a tune and reports there's still plenty left from the engine/transmission design.

GM on the other hand we don't know what they did to achieve these numbers. I'm sure with a CGI block and stronger internals it could be a fairly inexpensive upgrade to the current platform. I'm sure the Allison was an easy upgrade.

Ram has to increase their HP and I believe this is evidence that they're moving in this direction.

I will say this when I went from ('05)325hp/570tq to ('12)400hp/800tq with a little bump in fuel economy to boot I've really enjoyed the power increase more so than the fuel economy bump.

Those that are wanting improved fuel economy I believe that will come in due time since this HD class of trucks will be part of the CAFE requirements. The upcoming PC11/CK/AF oils are also about improving fuel economy with using lower viscosity oils like 10W30 which Ford already recommends.

[Me_Again]

Yes on the 8.3, however the rad, tranny and diff will not fit!

[mich800]

Interesting pics. Do they only need to display DOT numbers in that state the pics were taken if they are towing. The pics with no trailer the DOT numbers are covered.

[dodge_guy]

WOW! did they raise the mileage?
Do we really need Class 8 tractor level power in a 3/4 ton truck? Is someone seriously considering towing 35,000 lbs with a 3/4 ton truck!

Give us more mileage at respectable power levels and then I`ll be impressed!

Now, for serious power.... I wonder if Ram can squeeze the 8.3L Cummins in there????? Sure it would only have 400HP, but the 1400 lbft of TQ would more than make up for it! the only issue I know of would be attaching an armrest and cupholder to the rear valve cover, because that's about where the rear of the engine would sit!

[ScottG]

The SRT style grill would be more elegant IMHO. More like this:

[drittal]

spoon059 wrote:
Oh my goodness... who cares? This is ridiculous. I was just reading that GM may have forgone the Bosch fuel pump for Denso in their new 2017 Duramax. That, to me, is more important of a change... reliability.

If the Denso doesn't have the reputation of the CP4, then I agree fully!!!

[spoon059]

Oh my goodness... who cares? This is ridiculous. I was just reading that GM may have forgone the Bosch fuel pump for Denso in their new 2017 Duramax. That, to me, is more important of a change... reliability.

[drittal]

I don't see an end in sight.

Ram was able to go from 850 to 900 ftlbs just by tune. Get more air packed into the cylinders by Ram air and/or bigger turbo.

Ford jumped from to 925 with tune and bigger turbo and likely have room to grow.

I don't know what GM did, but I'm pretty sure they will have room to grow.

Right now, the limiting factors for all will be everything behind the motor. Nobody is really quite certain of the Aisin capability, just guess-timates. Ford trans capacity is well known. We all thought the Alison was max'd with the last gen duramax, but here it is again. Was it beefed up, or just more torque management?

I personally think this has gone to silly levels. A lighter diesel in the 550-600TQ range in a 250/2500 would be more than enough for the average RV'er, but 'MURICA!!!!