IS IT TIME 5.7 TO GET DROPPED ???

Poncherello · Dec 11, 2021

Fatbob Frank said:
I've had 3 5.7L Hemis and all were great, but if I could have checked a box and gotten an optional 6.4L
( or even an N.A. 6.2L they use for the TRX) I would have been all over that.
The 5.7L is getting outdated.
I wouldn't be opposed to them bringing back a modern version of the venerable 318ci 5.2L Magnum in an aluminum block, VVT, high compression motor to compete with Ford's 5.0 Coyote...

dmillar74 · Dec 11, 2021

The straight 6 is such a good design for torque and power. I would love to see a turbo charged gas inline 6.

Poncherello · Dec 11, 2021

I love the 5.7 in my ‘16 as well as the ZF Trans. First a 6.2 or 6.4 options for the 1500 would be great options. I think just updating the current 5.7 with better lifters, better oiling, forged internals, updated injection, updating the block more spacing between the bores, and making quality aluminum instead of cast iron. With that available boost.

Sammy · Dec 11, 2021

G-Ride990 said:
No way. The Hemi is far from obsolete.

It is still barely outdone by only the Ecoboost in terms of power. Hemi 395hp vs Ecoboost 430hp. The Ram 1500 is still sitting right in the middle of the pack in terms of max towing at 12,750lbs. The Chevy needs a 6.2L to beat it with 13,300lbs max rated towing.
The Tundra and Titan are down to 9,000lbs and 10,000lbs max towing.

For fuel economy Ram, Ford and Chevy are nearly identical. Forget about the Tundra and Titan, they don't even come close.

Long live the Hemi!

Give us the 392 in a 1500 now damn it!

Sorry but the fuel economy is now where close to a ford. And the new 3.5 is 450hp and 500ft of torque.
Well ahead of the 5.7 hemi.

ramffml · Dec 11, 2021

Sammy said:
Sorry but the fuel economy is now where close to a ford. And the new 3.5 is 450hp and 500ft of torque.
Well ahead of the 5.7 hemi.

And the new toyota hybrid is what, 570 lb/ft of torque?

I do like the hemi (lifter tick notwithstanding) but it's clearly the underdog now in performance if you care about winning stoplight races.

If you buy a truck because it's a good truck, and then want an engine to power it (like me), the hemi is perfectly fine. 22+mpg highway, pulls my trailer well, sounds great, and easily capable of getting out of its own way.

The ford does far worse in towing MPG though. That's been proven multiple times by guys on youtube like tfl truck and pickup truck talk. Unloaded, it's certainly possible to beat the hemi in mpg, but not when towing and working it hard.

AJNY · Dec 11, 2021

The 5.7 Hemi with the lifter problems cannot be fixed. 2021 the engine was modified to address the lifter issues and failed. Been a MOPAR fan since the 70’s. Never had a lifter issues on any MOPAR engine. This is my third 5.7. 2009 was great. 2018 and 2021 lifter issues. 2021 started at 900 MILES.
MOPAR DEALER kept the car a week. The dealer reported LIFTER NOISE NORMAL. ********!!

HEMIMANN · Dec 11, 2021

AJNY said:
The 5.7 Hemi with the lifter problems cannot be fixed. 2021 the engine was modified to address the lifter issues and failed. Been a MOPAR fan since the 70’s. Never had a lifter issues on any MOPAR engine. This is my third 5.7. 2009 was great. 2018 and 2021 lifter issues. 2021 started at 900 MILES.
MOPAR DEALER kept the car a week. The dealer reported LIFTER NOISE NORMAL. ********!!

What information do you have about 2021 Hemi mod to address lifters? I am only aware of the change in lifter vendors and some of the design parameters in 2017.

MrTaz · Dec 11, 2021

Sash said:
What do you all think ? here is my take on this, I have owned bunch of those hemis over the years and I think the hemi is a good engine but I think Chrysler need to drop it from production the engine is getting old is not that efficient and begin to be underpowered , I would love to see a 4.0 L straight 6 turbo or smaller displacement dual over head cam v8 turbo in our trucks, I dont think this this will happened but I would love to see it in a near future , I think its time, CHRYSLER ARE YOU LISTENING ?

The straight 6 can't pass the emissions requirements which is the reason the Big Three done away with them.

Southern Ram · Dec 11, 2021

Since this is my first ever ram truck I can’t say anything about the engine. So far it has great power and pickup and doing well.

HEMIMANN · Dec 11, 2021

MrTaz said:
The straight 6 can't pass the emissions requirements which is the reason the Big Three done away with them.

Why wouldn't a straight six pass emissions?

PJ Snyder · Dec 11, 2021

Fatbob Frank said:
I've had 3 5.7L Hemis and all were great, but if I could have checked a box and gotten an optional 6.4L
( or even an N.A. 6.2L they use for the TRX) I would have been all over that.
The 5.7L is getting outdated.
I wouldn't be opposed to them bringing back a modern version of the venerable 318ci 5.2L Magnum in an aluminum block, VVT, high compression motor to compete with Ford's 5.0 Coyote...

I agree with making a new 318. That was one of Chrysler's best engines, it was durable.

crash68 · Dec 11, 2021

HEMIMANN said:
Why wouldn't a straight six pass emissions?

It's not the I-6 format but the displacement of the cylinders themselves. The larger displacement cylinders have a uphill battle of complete combustion which causes excess emissions.

Docwagon1776 · Dec 11, 2021

Moparfanatic21 said:
After 2023 Ram will be producing a straight 6 turbo engine to replace the Hemi and will not make V8s anymore. At least according to an article I read. Things change though

Nope.

Docwagon1776 said:
FCA did work on a 6 cylinder forced induction replacement with the project name of "Tornado". Rumor mill was it would be roughly 3 liters and over 500hp. But for whatever reason it was cancelled. I suspect to focus on hybrid powertrains/EVs but that's just a guess.

Docwagon1776 · Dec 11, 2021

MrTaz said:
The straight 6 can't pass the emissions requirements which is the reason the Big Three done away with them.

BMW doesn't seem to have any issues getting a straight 6 to pass...

MrTaz · Dec 11, 2021

Docwagon1776 said:
BMW doesn't seem to have any issues getting a straight 6 to pass...

Docwagon1776 said:
BMW's engine is a dual overhead cam 24 valve engine that's a cross flow head design with variable valve timing on both the intake and exhaust. It's very modern in design and nothing like the dinosaur design of the inline 6's that the big three designed and built in the 60's and 70's

BMW's engine is a dual overhead cam 24 valve engine that's a cross flow head design with variable valve timing on both the intake and exhaust. It's very modern in design and nothing like the dinosaur design of the inline 6's that the big three designed and built in the 60's and 70's

MrTaz · Dec 11, 2021

HEMIMANN said:
Why wouldn't a straight six pass emissions?

It can’t be cleaned up to current emission standards without an unacceptable loss of fuel economy.

The new generation “ECO” engines, with multiple camshafts, hemispherical head designs, port timed fuel injection, symmetrical intake runners, and variable valve timing are just too far beyond the old design engines in:

Low emissions
High power to weight ratios
Low fuel consumption
High compression ratios
Wide RPM bands with flatter torque curves
Low vertical height for fitting into low designs.

Docwagon1776 · Dec 11, 2021

MrTaz said:
BMW's engine is a dual overhead cam 24 valve engine that's a cross flow head design with variable valve timing on both the intake and exhaust. It's very modern in design and nothing like the dinosaur design of the inline 6's that the big three designed and built in the 60's and 70's

Who's talking about 60s/70s tech with motors being designed today, regardless of configuration? What 60s/70s motor of any configuration would pass today's emissions requirements? Why are you drawing some distinction with straight 6s?

2012RAM1500RT · Dec 11, 2021

HEMIMANN said:
Really? For trucks, the inline 6 cylinder provides the strongest block architecture, which is why all the semi's run 'em. Individual cylinder bearings, inherently balanced (as is the V8, of course). The limiting factor was how much material you could get in the power cylinder to keep 'em together.

I'd try a turbo inline 6. Wife's I4 turbo is a low rpm torque beast. I really like it, compared to the wheezy V6 NA we had prior.

Yes, not interested in a 4 or 6 anything.

pacofortacos · Dec 11, 2021

Why would you spend $billion + on a new design that you would not be unable to sell in most of the world in 4-8 yrs?

Now as a stop gap, They could, and SHOULD have from day 1, offer the truck 6.4 in the 1500. A little tweaking of the tune/ E torque should be able to meet the same emission/mpg as the 5.7 does in light driving but offer superior performance in towing mode.
I can't imagine driving around at 1400 rpms @ 70 mph should use much fuel and unlike the 5.7 it could hold 8th gear on slight grades.
People like the 6.4 in the 2500, I would think it would be a great option in the lighter 1500.

Farmer Fran · Dec 11, 2021

I am pretty sure the 392 does not fit in the 1500 for some reason; and that it is not cost effective due to the push of EV. But even years ago, not cost effective because, well, the few that would pay for it. YES, I AM ONE THAT WOULD HAVE!

That said, what does the 5.7 not have that you really need in a 1500 vs the 392 other than bragging rights? None. The 5.7 is efficient, powerful and capable for what it is vs the payload.

I mean look at the rest of the line up going from the base engine to the 6.4 is $$$$ - personally I would have bought my Limited with the 6.4 over the 5.7 everyday and 2x on Sunday, but the average person would not - I mean look at the 3.21 vs 3.92 threads, it is all about MPG -UNTIL IT IS NOT!

IS IT TIME 5.7 TO GET DROPPED ???

do you think CHRYSLER need to drop the 5.7 hemi

5.7 hemi is ok in ram1500

TIME FOR CHANGE !!!! need more power to keep up with competition

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