EPA Diesel Engine “Delete Tuning” Crackdown...Is It Here Now?

[phsycle]

For as much as diesel power is touted for its off-road superiority, why isn't it commonly chosen to power purpose built off-road vehicles?

Head engineer for Ram said they went gas for the PW due to the heft of Diesel engines and issues mounting the winch in front of the inter cooler.
In all reality, diesel isn’t superior off-road by any means. There are many other factors that determine the off-road prowess of a truck than the engine itself.

 

[roving]

Head engineer for Ram said they went gas for the PW due to the heft of Diesel engines and issues mounting the winch in front of the inter cooler.
In all reality, diesel isn’t superior off-road by any means. There are many other factors that determine the off-road prowess of a truck than the engine itself.

I’d rather have a diesel off road. Been 4 wheeling with diesels for years. I live the low end torque.

Besides. Power wagons are for people who can’t build a truck anyway. I can add everything the power wagon has anyway. And have the diesel for towing and great mileage.

 

[shade]

There's a difference between preferring the low rpm torque of a diesel engine when driving off-road, and stating that a diesel engine is advantageous for driving off-road.

 

[ttengineer]

For as much as diesel power is touted for its off-road superiority, why isn't it commonly chosen to power purpose built off-road vehicles?

Cost and weight I suppose.


Sent from my iPad using Tapatalk

 

[shade]

I've asked that question before. If there's a true, objective advantage to using diesel power to traverse difficult terrain, I haven't seen it mentioned.

That's not to say that diesel power doesn't have advantages over other options, or that someone shouldn't enjoy using it off-road. I just don't think having a diesel engine makes it any easier to drive over an obstacle.

 

[luthj]

Another 300lbs of engine sure might make it harder.

 

[shade]

Another 300lbs of engine sure might make it harder.

Naw dawg I gots more torques down low brah

I look forward to the diesel vs. EV off-road comparisons. "My permanent magnet synchronous reluctance motors be killin it on torques from ZERO reps brah!"

 

[plumber mike]

Fuel injection is certainly an advantage off road. And there was a time when diesel was injected and gasoline just spilled in from the carb. Thankfully that’s in the past.

 

[85_Ranger4x4]

A 2.4l Toyota diesel went through water crossings, up and down inclines, highway driving, rough roads in 4 low all while carrying at least 1k lbs of gear and people, with 2 RTT’s and wearing aggressive A/T’s....it still returned an average of 23mpg, in some cases much better. I can’t think of any gasser, turbo or otherwise, which would provide similar performance and efficiency.

Let the EPA choke that 2.4 down so it is clean and then compare...

OEM engineers are good... But not great. They work in a world of compromises. "Tuners" have been one upping the OEMs for many years.

I think they sandbag some too so they can just play with the tune to stay with (or ahead of) the competition.

When we were at the Detroit auto show for the Ranger reveal two years ago Ford was having it out with someone, we caught them upping the rating on the 6.7 Powerstroke at least 4 times.

 

[plumber mike]

You’re all right 4bt

 

[Bayou Boy]

What was the range/MPG, out of curiosity? Ram really needs to outfit these rigs with bigger tanks.

So, I got 10 pretty reliably with the 37" Toyo MTs with my 2014 with 3.42s pulling my ORV 23DBS at about 9000#.

My 2019 get's 9 unless the wind is blowing hard pulling my mid-profile 5th wheel. It weighs about 11,000 going down the road. That puts me at about 270 miles to empty. I'm planning fuel stops when the needle hits half tank which is only after 130 miles or so. That sucks. I feel like I just got back on the road. And stops in the truck lanes take a ton of time. It's just too easy to look down at 1/4 tank left and realize you only have 65 miles to empty and you just passed the last city for 50 miles.

For 2020 longbeds are available with 55 gallons. Hopefully that tank fits the Megacab and the dealer can fix my DTE to match. The incorrect DTE is the only issue with the aftermarket tanks. Some of you guys may roll your eyes but for those of us that have had that feature on every vehicle since 2000 we've gotten used to using the DTE as the gauge rather than the fuel gauge.

 

[JaSAn]

. . . I think they sandbag some too so they can just play with the tune to stay with (or ahead of) the competition.

There is some of that, but there is also other players in the decision making besides engineers who have veto power: lawyers, bean counters, reliability statisticians, sales, marketing, et.al.

In any competition it is always good to have something in reserve for when it makes a difference.

 

[Bayou Boy]

There is some of that, but there is also other players in the decision making besides engineers who have veto power: lawyers, bean counters, reliability statisticians, sales, marketing, et.al.

In any competition it is always good to have something in reserve for when it makes a difference.

The constant small bumps in HP/torque from the big 3 are absolute proof of this.

 

[chet6.7]

Diesel and gas each have strong and weak points,as does engine design,straight VS V configuration.

 

[phsycle]

Besides. Power wagons are for people who can’t build a truck anyway. I can add everything the power wagon has anyway.

You’re right. $8k for the PW package is stupid when you can spend $15k to get the same thing without factory warranty.