Bionic Man wrote:
ShinerBock wrote:
ib516 wrote:
RoyJ wrote:
To put things in perspective - the might Dodge Ram Cummins 6BT debuted in 1989 with a whopping 160 hp, and ground-breaking 400 lb-ft. It also had a class leading 16,000 lbs GCWR.
Now we have 100 more hp, and 80 lb-ft more torque, in a 1/2 ton diesel, coupled with a MUCH better transmission.
My 2002 Cummins had 235hp and 460tq. It was an awesome puller. The 3.0L ED will be awesome for pulling an RV.
I had a 99 with 235 hp/460 lb-ft. It wasn't that awesome to me until I added another 150+ hp. In stock form it would loose speed going up hills towing just a 10k cattle trailer. Low speed pulling it was great, but it would have trouble holding 65 mph on hill steeper than 3%. Modified, it had no issues pulling 10k at 65 or even 70 mph up any hill.
If you’re towing 10,000 pounds on a regular basis you should have a
2500-3500.
To me 7000 - 8000 pounds on a regular basis would be my limit.
I’ve towed 7000 pounds with my Jeep and it held speed and was very acceptable. And it gets 15 + MPG towing that at 65 MPH. You won’t get that in a bigger truck or a gasser.
And, for the record, your 99 probably had half the gears that these 3.0s come with. Big change in capability with that alone.
My 99 was a 3500. Also, gears only multiply torque not horsepower, and it is horsepower that determines max speed pulling X weight up Y grade. With 4.10 gears and a six speed NV5600, I had plenty of torque. I just didn't have enough horsepower.
When towing 10k, any hill steeper than 2-3% reduced my speed with the stock 235 hp. It would probably take a steeper hill to slow me down if I were towing 7k, but then again my old 99 was probably several thousand pounds heavier than your Grand Cherokee.
I would love for my wife to get a Grand Cherokee Ecodiesel for her next SUV because I think it is the prefect size vehicle for the engine. However, in a half ton, tuned 3.5L Ecoboost all day everyday and I would gladly pay for the added fuel because of how fun it is to drive. Besides, I have a 225rwhp/390rwtq 3,500 lb diesel car that gets 45 mpg combined if I want fuel mileage.
