Trailer Life Magazine Open Roads Forum: Ram 6.4L Hemi vs good ol' 8.1L
Open Roads Forum Already a member? Login here.   If not, Register Today!  |  Help

Newest  |  Active  |  Popular  |  RVing FAQ Forum Rules  |  Forum Posting Help and Support  |  Contact  

Search:   Advanced Search

Search only in Tow Vehicles

Open Roads Forum  >  Tow Vehicles

 > Ram 6.4L Hemi vs good ol' 8.1L

Reply to Topic  |  Subscribe  |  Print Topic  |  Post New Topic  | 
Page of 6  
Next
Sponsored By:
BurbMan

Islip, Long Island

Senior Member

Joined: 09/20/2001

View Profile



Good Sam RV Club Member


Posted: 02/09/18 12:05pm Link  |  Quote  |  Print  |  Notify Moderator

Had the flu this week so spent a lot of time sitting around watching TV and Googling stuff....I got to thinking that my next truck will probably be a well-equipped Ram 2500, crew cab, 6'4" bed, with the 6.4L Hemi.

The real question is the drivetrain....I thought briefly about the manual transmission, but the traffic around here has gotten so bad I'm afraid I don't have the patience to shift anymore. After losing 2 automatics while towing, it seems to make sense though....

I don't tow far enough or heavy enough to need a diesel, TT loaded is not quite 9k lbs. I'm thinking the 6.4 with the 4.10 rear would make a nice combo.

So obviously the Big Question is, how will it tow compared to the 8.1/4.10 combo I have now? How is the 68RFE transmission, is it durable?

I'm also not seeing ram boxes or an IBC option, are these not available on the power wagon?

The other big question is how recent model years stack up....ideally I'd like to get 14-16 truck that somebody else had paid the depreciation on.

Would appreciate any pointers from guys who know the Ram truck line...


2001 Suburban 2500LT 8.1L/4.10
2008 Terry TT
Hensley Arrow Hitch
Dill TPMS, CorrecTrack alignment, LT tires


1stgenfarmboy

Southern tip of ILL

Senior Member

Joined: 02/14/2011

View Profile


Offline
Posted: 02/09/18 12:37pm Link  |  Quote  |  Print  |  Notify Moderator

When wanting torque with a gas engine there is no denying cubic inches, but the 6.4 is a power house for sure, and with 4:10's it will work so well I dought you feel the difference between it and your 8.1.

the 68RFE is what is behind the cummins with 750tq so I can't imagin it won't hold up behind the 6.4, and with the low gears it will put even less stress on it.


With all this said I like manual trans, but I know where you are coming from on the not wanting to shift in traffic.


1993 Dodge W350 Cummins with all the goodies
2014 Ram 1500 Laramie Longhorn 2wd 395hp
2017 Forest River Surveyor 243 RBS
2001 Super Sherpa & 2012 DL650A go along also


Turtle n Peeps

California

Senior Member

Joined: 06/23/2008

View Profile


Online
Posted: 02/09/18 12:39pm Link  |  Quote  |  Print  |  Notify Moderator

Looks like a good fit to me.

The 6.4 has been reported to be a good engine; so is the tranny. The hemi will have more HP so you will go up the mountains better and faster. Fuel use will be "about" the same.


~ Too many freaks & not enough circuses ~


"Life is not tried ~ it is merely survived ~ if you're standing
outside the fire"

"The best way to get a bad law repealed is to enforce it strictly."- Abraham Lincoln


RamGuy

Long Island

New Member

Joined: 02/09/2018

View Profile


Offline
Posted: 02/09/18 12:44pm Link  |  Quote  |  Print  |  Notify Moderator

OP here....reserving my new user name in advance [emoticon]

Sorry I meant the 66RFE, the 68 does go behind the cummins. The 6.4 also had MDS so it should get better gas mileage when empty. On a good day with a tail wind, running completely empty and downhill I can get 11 mpg with the big block....7 mpg with the trailer.

wilber1

Abbotsford B.C.

Senior Member

Joined: 12/16/2002

View Profile



Posted: 02/09/18 01:02pm Link  |  Quote  |  Print  |  Notify Moderator

I really don't understand why Ram offers the 8 spd with the 5.7 1500 and not with the 6.4 2500. They come in models that can easily handle the 6.4's torque. In fact it is the automatic option on the Hellcat which produces 650 lbft.


"Never trust a man who has not a single redeeming vice" WSC

2011 RAM 3500 SRW
2015 Grand Design Reflection 303RLS

IdaD

Idaho

Senior Member

Joined: 08/06/2014

View Profile



Posted: 02/09/18 01:30pm Link  |  Quote  |  Print  |  Notify Moderator

BurbMan wrote:

The other big question is how recent model years stack up....ideally I'd like to get 14-16 truck that somebody else had paid the depreciation on.


The updated chassis and front end arrived in the 3500 in 2013 and the 2500 in 2014 and I'd definitely target those years over earlier because the upgrades are significant.

The main problem I've read on the 66RFE has to do with the gear spacing and how it can struggle on serious grades at elevation. Basically the 1-2 gap is too big and in certain situations it'll stick you in 1st gear with a dunce cap going up the grade nice and slow. From a reliability standpoint I think it's considered pretty solid. If you're going to tow out west a lot I guess I'd recommend looking more at a Cummins Ram or maybe a Super Duty with the 6.2 if you really want gas. But in the midwest or back east that 66RFE probably wouldn't ever be an issue.


2015 Cummins Ram 4wd CC/SB


kirkl

Washington

Full Member

Joined: 08/18/2004

View Profile



Posted: 02/09/18 02:33pm Link  |  Quote  |  Print  |  Notify Moderator

I had a 17 2500 ram 6.4 with 3.73 gears. Maybe 4.10 would probably be better but I wasnt impressed with it pulling my TT which is about 7500lbs. Shifted alot and coming from a 2003 cummins wasnt prepared to hear it screaming at 4500 RPM's every hill I came to. I couldnt imagine pulling more than that with the 6.4. I wasnt gonna be happy with that truck for 14 years so traded it in on a 17 cummins.


2017 Ram 2500 6.7 Cummins 4x4 LB
2018 Wildcat Maxx 28RKX
Honda 2000 Generator

GordonThree

Northern Michigan

Senior Member

Joined: 05/19/2013

View Profile


Offline
Posted: 02/09/18 02:48pm Link  |  Quote  |  Print  |  Notify Moderator

BurbMan wrote:

Had the flu this week so spent a lot of time sitting around watching TV and Googling stuff....I got to thinking that my next truck will probably be a well-equipped Ram 2500, crew cab, 6'4" bed, with the 6.4L Hemi.

...

I'm also not seeing ram boxes or an IBC option, are these not available on the power wagon?


Are you looking at a Ram 2500, or a Ram Power Wagon? They're not exactly interchangeable.

Power Wagon is not really a tow vehicle... The suspension is too soft, and all the extra stuff they added to the Wagon really drops its payload.

On "well equipped" it's been my experience shopping trucks, the more "equipped" you get, the less payload you have to work with.


2013 KZ Sportsmen Classic 200, 20 ft TT
2017 Ram 2500 4x4, 6.4 HEMI, 4.10 / Auto

Grit dog

Black Diamond, WA

Senior Member

Joined: 05/06/2013

View Profile


Offline
Posted: 02/09/18 02:55pm Link  |  Quote  |  Print  |  Notify Moderator

wilber1 wrote:

I really don't understand why Ram offers the 8 spd with the 5.7 1500 and not with the 6.4 2500. They come in models that can easily handle the 6.4's torque. In fact it is the automatic option on the Hellcat which produces 650 lbft.


Yeah IDK either. The 8 speed zf trans also backs the Demon and other super cars in Europe. It would hold the 6.4 no problem. But I don’t get why the Nag 1 behind the 6.1 SRTs didn’t replace the turdly 545re or whatever that was.
Cost is my guess. In house vs German engineered.


03 Arctic Fox 860
07 Dodge 2500 deezul

spoon059

Just north of D.C.

Senior Member

Joined: 10/03/2010

View Profile



Good Sam RV Club Member

Offline
Posted: 02/09/18 03:11pm Link  |  Quote  |  Print  |  Notify Moderator

If you are looking to tow, avoid the Powerwagon model. Its cool looking and designed for OFFROAD, not designed for hauling weight or trailers.

Everybody that has complained about the Ram 6.4 and the 1-2 gap has had the taller rear axle ratio. Haven't heard anyone complain about the 4.10 rear axle failing to maintain speed up elevations.

Ram hasn't thrown the 8 speed transmission into anything heavy yet. I'm sure it will come eventually, but they don't trust it in the HD trucks yet.


2015 Ram CTD
2015 Jayco 29QBS

Reply to Topic  |  Subscribe  |  Print Topic  |  Post New Topic  | 
Page of 6  
Next

Open Roads Forum  >  Tow Vehicles

 > Ram 6.4L Hemi vs good ol' 8.1L
Search:   Advanced Search

Search only in Tow Vehicles


New posts No new posts
Closed, new posts Closed, no new posts
Moved, new posts Moved, no new posts

Adjust text size:

© 2018 CWI, Inc. © 2018 Good Sam Enterprises, LLC. All Rights Reserved. | Terms of Use | PRIVACY POLICY | YOUR PRIVACY RIGHTS