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Custom Dodge Ram Performance Mods - Engine - 6.4 HEMI V8 Discuss modifying your Dodge Ram with Performance Parts and Accessories!
Factory Spec: 6.4-liter HEMI® V8 engine - 410 horsepower, 429 lb-ft of torque.


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  #31  
Old 07-10-2014, 01:40 PM
mowin mowin is offline
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Quote:
Originally Posted by wyo2track View Post
I'll vouch for that 3500 theory. I was always told go with a 3500 just to get that extra bit of payload. But these new frames RAM is putting under the 2013+ 3500's and 2014+ 2500's are more beefier than ever. I watched a lot of the RAM marketing info saying RAM 2500 trucks are comparable to their competition's 3500 trucks and their 3500 trucks comparable to the competitions 4500. After owing a 2013 3500 I believe it, it was stiff. It was a SRW CC SB and had a payload of 4440 lbs. That one extra leaf, the stiffer front spring, and the new frame made it a payload monster. It really needed a 5000+lb trailer behind it all the time.

With the 6.4L, I don't know if I would look at a 3500 just because the engine is not as heavy up front. I would think that bumps would be harsher with the 6.4L up front over the 6.7 just because there is not the extra weight, compressing the spring and softening the blow.
I drove a 3500 srw and a 2500 6.4 back to back. The coil suspension on the 2500 was noticeably smoother on the bumps. The 3500 wasnt horrible, but you definitely know its a 3500. The ride difference wasnt great enough to go with the 2500, so the 3500 srw was my choice. Just turned 7k yesterday and no regrets.
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  #32  
Old 07-10-2014, 01:42 PM
Dave532 Dave532 is offline
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I have 2K miles on mine. The best I have seen EVIC calculated is 17 mpg hwy, 14 mpg mixed and 12 mpg towing a car on an open trailer.

Considering it is not broken in yet, it is already getting better mileage (according to the relative EVICs) than my 2011 5.7 2500 under the same conditions.

Not to hijack the thread but I have a question for you Rocky Mountain guys:

I have always been hesitant to tow my 10,000# enclosed trailer from MN across the mountains to say, Utah, Oregon, etc. because of the potential steep climbs my gasser will encounter.
But the feedback with the 6.4 sounds encouraging.

So my question: would anyone who has experience with the 6.4 in the mountains hesitate to travel across country pulling a 10K trailer with their 6.4?

Thanks,

-Dave
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  #33  
Old 07-10-2014, 04:06 PM
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wyo2track wyo2track is offline
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Quote:
Originally Posted by Dave532 View Post
So my question: would anyone who has experience with the 6.4 in the mountains hesitate to travel across country pulling a 10K trailer with their 6.4?

Thanks,

-Dave
GO FOR IT! This 6.4L was built for heavy duty service. Your not going to be able to travel as fast as a 6.7 CTD and be as efficient. Probably have to travel a little slower. Fuel mileage will depend on your route. Some routes may have a slow gradual climb, others will be more severe, but once at the top your usually heading downhill again. You'll probably fight more wind heading this direction than grades. Don't worry about trying to drive 65 mph if allowed in the mountainous areas where roads are following canyon streams. Enjoy the drive. Biggest thing is to plan your route and budget for the trip. If I was to do a trip with the 2013 CTD I sold from where you are, I'd plan for an average of 9 or 10 mpg. With the 6.4L, 7 or 8 mpg. You're going to have some bad fuel ecomomy stretches and some good. There are already a few posts in this exact thread of a forum member towing 13K. Check them out.

Last edited by wyo2track; 07-10-2014 at 04:16 PM.
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  #34  
Old 07-11-2014, 01:52 PM
Dave532 Dave532 is offline
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Quote:
Originally Posted by wyo2track View Post
GO FOR IT! This 6.4L was built for heavy duty service. Your not going to be able to travel as fast as a 6.7 CTD and be as efficient.
Thanks for the response. I am not concerned about fuel mileage as I'm pretty realistic about those numbers. My only real concern was pulling up some of the steeper hills...I don't want to be in the right lane at 20mph out of breath. So far all the reports are good and I am gaining confidence from every positive post.
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  #35  
Old 07-13-2014, 10:09 PM
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tdsails tdsails is offline
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My 3500 single wheel is showing 15.2 on the EVIC and that is a mix of highway and city. Ill have to do some manual calculations to see where it is. The 2014 6.4 is a significant change from my 06 with a 5.9 CTD, and it is taking a little getting used to. I like it better every day though.
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  #36  
Old 07-14-2014, 07:04 AM
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sandawilliams sandawilliams is offline
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Quote:
Originally Posted by Dave532 View Post
I have 2K miles on mine. The best I have seen EVIC calculated is 17 mpg hwy, 14 mpg mixed and 12 mpg towing a car on an open trailer.

Considering it is not broken in yet, it is already getting better mileage (according to the relative EVICs) than my 2011 5.7 2500 under the same conditions.

Not to hijack the thread but I have a question for you Rocky Mountain guys:

I have always been hesitant to tow my 10,000# enclosed trailer from MN across the mountains to say, Utah, Oregon, etc. because of the potential steep climbs my gasser will encounter.
But the feedback with the 6.4 sounds encouraging.

So my question: would anyone who has experience with the 6.4 in the mountains hesitate to travel across country pulling a 10K trailer with their 6.4?

Thanks,

-Dave
Most of my trailer towing has been in the mountains of Colorado. Just bought the 2500 with 6.4 and 3.73's. My previous truck was the 1500 with 5.7 and 3.55's. I was so impressed with how the 1500 towed my 31' trailer with 1000 lbs. in the bed of the truck that there is no problem with the new truck. Have only towed over 7000 feet elevation so far with truck and trailer but it never slowed below 65 MPH. I am still breaking in the truck because I was on a trip with trailer in tow when I pulled into the dealer and traded for the 2500. The truck had 30 miles on it when I hooked it up and headed out. I would have rather had a few more miles on the truck prior to pulling but I had no choice in the matter due to buying when I did.
So the short answer to pulling out west through thick and thin is go for it! No worries. What is more important than getting up the mountain is how you come off. Keep it geared down and use your brakes sparingly.
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  #37  
Old 07-14-2014, 11:56 AM
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wyo2track wyo2track is offline
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Quote:
Originally Posted by sandawilliams View Post
Have only towed over 7000 feet elevation so far with truck and trailer but it never slowed below 65 MPH. I am still breaking in the truck because I was on a trip with trailer in tow when I pulled into the dealer and traded for the 2500. The truck had 30 miles on it when I hooked it up and headed out. I would have rather had a few more miles on the truck prior to pulling but I had no choice in the matter due to buying when I did.
Ha ha...that sounds like a spur of the moment buy! How did you like going from a 1500 to a 2500 with your trailer in tow?
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  #38  
Old 07-14-2014, 03:55 PM
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sandawilliams sandawilliams is offline
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Quote:
Originally Posted by wyo2track View Post
Ha ha...that sounds like a spur of the moment buy! How did you like going from a 1500 to a 2500 with your trailer in tow?
Not spur of the moment as I had researched for a few weeks and checked with dealerships from Idaho to North Carolina. Found the best deal on what I needed in Denver, only 100 miles away.
The reason for the purchase was my 1500 was maxed out with just the camp trailer and when we put the ATV in the back at about 1000 lbs. it was just too much for the 1500.
Hooked the 2500 to the trailer and what a difference. Squatted the rear less than an inch. I will sadly miss my 2009 ram 1500 but the new truck will do the job much better.
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  #39  
Old 08-12-2014, 12:42 PM
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JerryparmerRam JerryparmerRam is offline
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Update:

I put on a Muflex conversion with the Magnaflow muffler. I am seeing 1.5-2.1 mpg improvement. I was amazed as I never expected that. That is with the first 3 tanks of gas. Now my average is up from 13.9 to over 15.5 mpg.

I started pulling my 5th wheel after about 5K miles. I haven't pulled since the muffler change. I'll update that info next week.
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  #40  
Old 08-12-2014, 04:33 PM
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wyo2track wyo2track is offline
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Quote:
Originally Posted by JerryparmerRam View Post
Update:

I put on a Muflex conversion with the Magnaflow muffler. I am seeing 1.5-2.1 mpg improvement. I was amazed as I never expected that. That is with the first 3 tanks of gas. Now my average is up from 13.9 to over 15.5 mpg.

I started pulling my 5th wheel after about 5K miles. I haven't pulled since the muffler change. I'll update that info next week.
Great information!! Look forward to hearing your towing report. Any noticable difference in acceleration performance?
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