New 3.0L inline-6 has arrived

IvoryHemi · Mar 26, 2022

Keith67 said:
I wonder if they’ll offer it in the Power Wagon. I imagine it would be good for hauling/towing, sounds like a broad torque curve, hopefully better fuel mileage unloaded. I love I6 engines so I’m hoping this one is a home run.

I would not expect to see in HD

Dinky · Mar 26, 2022

Glad to see the went with a inline 6 vs v6. Lots more lower end power. Jeeps 4.0 was a great motor.

mikeru · Mar 26, 2022

pacofortacos said:
My wife's Mazda DI has been flawless in 85,000 miles and 10 years. The key is designing the motor to keep the valves clean, I thought some (maybe Toyota?) were adding a single fuel injector upstream to spray fuel at certain times to keep the valves clean.
Mazda claims that they do theirs by temperature.

I haven't needed to manually clean the valves yet on mine, but I have run some combustion cleaner through the throttle body intermittently. What it really needs is a sustained high speed trip, but I think my wife revs it often on the way to work lol.

Some auto makers use dual injection, similar to what you described. It's actually quite effective at eliminating the main issue with gasoline direct injection. Unfortunately it doesn't sound like this new engine will be dual injection.

I'm not familiar with Mazda gasoline direct injected engines. It's great that your wife's Mazda seems to be running fine. But every direct injection engine engine will eventually suffer from carbon build up. This carbon build up isn't like the combustion chamber build up. Revving the engine, high rpm runs, driving it like you stole it, won't help with this issue. The carbon builds up on the back sides of the intake valves since there is no gasoline to wash this area off. With port injection, throttle body injection, or even carburetion, fuel constantly washes the backs of the valves, keeping them clean. The best way to help with this issue is prevention. Installing a catch can help reduce the problems.

mikeru · Mar 26, 2022

Keith67 said:
I wonder if they’ll offer it in the Power Wagon. I imagine it would be good for hauling/towing, sounds like a broad torque curve, hopefully better fuel mileage unloaded. I love I6 engines so I’m hoping this one is a home run.

I'd rather have a PW with the 6.7 Cummins. Now that's an I6 engine I could get behind

HK1837 · Mar 26, 2022

Dinky said:
Glad to see the went with a inline 6 vs v6. Lots more lower end power. Jeeps 4.0 was a great motor.

Totally agree. I still have a 4.0L V6 in my Hilux (Australian version of Tacoma) with a TRD supercharger. I cannot think of too many worse sounds than a V6 without a power robbing exhaust system.

pacofortacos · Mar 26, 2022

mikeru said:
Some auto makers use dual injection, similar to what you described. It's actually quite effective at eliminating the main issue with gasoline direct injection. Unfortunately it doesn't sound like this new engine will be dual injection.

I'm not familiar with Mazda gasoline direct injected engines. It's great that your wife's Mazda seems to be running fine. But every direct injection engine engine will eventually suffer from carbon build up. This carbon build up isn't like the combustion chamber build up. Revving the engine, high rpm runs, driving it like you stole it, won't help with this issue. The carbon builds up on the back sides of the intake valves since there is no gasoline to wash this area off. With port injection, throttle body injection, or even carburetion, fuel constantly washes the backs of the valves, keeping them clean. The best way to help with this issue is prevention. Installing a catch can help reduce the problems.

I'm aware of the cause and easiest cure. Some makes have had a lot of issues with the valves. If it ever seems to be a problem, supposedly the easiest way is to pull the intake and use walnut shells to blast the valve.

The Mazda runs the intake valve really hot, so a good run for several hours above 2000 rpms (highway speed) will actually often clean the valves off - in theory. I have thought about a catch can, just have never gotten around to it.
I have run combustion cleaner through the intake and let it soak for a while and then went on a decent drive @ about 3000 rpms for several miles.
I'm sure that there's carbon on the intakes, but it doesn't seem to be enough to hinder performance - she averages 29-30 mpg driving small town back roads all year long. That Mazda 3 seemed like such a small car back in 2012 but now it appears to be the average size haha.

pacofortacos · Mar 26, 2022

You would be surprised at the amount of carbon buildup even on non-DI engines.
I have pulled apart 318's that the carbon was so thick that the engine would barely idle. Going to port injection really seemed to help on later engines.

Dinky · Mar 26, 2022

HK1837 said:
Totally agree. I still have a 4.0L V6 in my Hilux (Australian version of Tacoma) with a TRD supercharger. I cannot think of too many worse sounds than a V6 without a power robbing exhaust system.

Lol I had a nissan 350z with the 3.5L v6 that motor actually sounded bad ass with the right exhaust. If I was going for utility and not running a v8 inline6 would be the only way. The Ford straight 6 300 was a great motor not fast but plenty of to get work done. The new tornado will put the Ford ecoboost to shame just because it's inline.

Mister Luck · Mar 27, 2022

Straight 6 is an impressive setup
Twin turbochargers
with Separate cooling system
Aluminum block with sprayed in linings.. sounds pretty exotic.

If Stellantis make significant production numbers and they’re not snatched up by collectors.. after a couple years a few examples of the engine will be found at a
relatively discounted price.

Maybe some development or aftermarket support will be made from aluminum billet for the engine block with iron sleeves.

Turbocharged vehicles do-not fare well in the domestic market because they are typically service oriented product
Maybe some consumers who are familiar in diesels and the necessities of force induction routine service practices will have surviving original examples.

HK1837 · Mar 27, 2022

Dinky said:
Lol I had a nissan 350z with the 3.5L v6 that motor actually sounded bad ass with the right exhaust. If I was going for utility and not running a v8 inline6 would be the only way. The Ford straight 6 300 was a great motor not fast but plenty of to get work done. The new tornado will put the Ford ecoboost to shame just because it's inline.

The Toyota 1GR V6 sounds awful! Mine has extractors and a good sized single system, I had to do it as the stock system was useless with the blower. It has a lot of muffler on it but you can't polish a ****!

The Australian Ford 4.0L inline six was a nice engine in turbo version. It was up to well over 300kW (over 400hp) off the showroom floor.

Ford Barra engine - Wikipedia

en.wikipedia.org

cacarter · Mar 27, 2022

ramffml said:
Not sure I'd use the word "arrived" since I can't buy one and no one has tested it anywhere yet.

This engine has been rumored for years and though its obviously coming, I'd be surprised if the hemi is not available in some trim/option/package for another few years yet anyway.

The key is going to be fuel economy. If it can't increase that by an obvious and significant amount over the hemi then there is no point to this engine to me as a consumer I'm just going to pass on this engine (obviously Ram needs the engine because it will help them with emissions but that doesn't affect my purchasing decisions in the slightest.)

In other words; this engine is great for Ram, but not necessarily great for me as a consumer. We will see, I will consider one if they get it right with no turbo lag and a obvious improvement with MPG (and not just tricking EPA tests either, real world results!)

I don’t want this forced on me, as a consumer. I get why they’re doing it, but for the love of God, leave the 5.7 Hemi as an option, please! I just got my 2018 Ram 1500 with a Hemi, and I love it. When it’s time to trade it in, I’d really hate to buy a Toyota, Chevy, or a Ford because they offer a naturally aspirated V-8, and Ram doesn’t for their 1/2 tons.

ramffml · Mar 27, 2022

cacarter said:
I don’t want this forced on me, as a consumer. I get why they’re doing it, but for the love of God, leave the 5.7 Hemi as an option, please! I just got my 2018 Ram 1500 with a Hemi, and I love it. When it’s time to trade it in, I’d really hate to buy a Toyota, Chevy, or a Ford because they offer a naturally aspirated V-8, and Ram doesn’t for their 1/2 tons.

Toyota already dropped the v8, can't get them anymore. Nissan doesn't even sell half ton trucks anymore in Canada so I expect the Titan to be dropped in the USA shortly as well. Possibly the American trucks keep the v8's around in limited supply as a premium feature, as nowhere has Ram said they are actually dropping the hemi completely just that they're introducing the 3.0.

2500's, gassers aren't going anywhere in that market so maybe that's the next move for us v8 guys.

crazykid1994 · Mar 27, 2022

cacarter said:
I don’t want this forced on me, as a consumer. I get why they’re doing it, but for the love of God, leave the 5.7 Hemi as an option, please! I just got my 2018 Ram 1500 with a Hemi, and I love it. When it’s time to trade it in, I’d really hate to buy a Toyota, Chevy, or a Ford because they offer a naturally aspirated V-8, and Ram doesn’t for their 1/2 tons.

Yea. No more v8 engines in Toyota. Turbo v6. Sucks. My father was looking at trading in for a newer Toyota in a few years to tow his boat but may end up with a 2500 to keep up reliability since I can’t see a turbo v6 or turbo i6 being good long term when being loaded down all the time. Heck even v8 engines tend to get tired quick when worked all the time. That’s why diesel is a better work engine but the many Nannie’s that epa has on diesels makes it not as reliable or worth it as a daily vehicle.

ramffml said:
Toyota already dropped the v8, can't get them anymore. Nissan doesn't even sell half ton trucks anymore in Canada so I expect the Titan to be dropped in the USA shortly as well. Possibly the American trucks keep the v8's around in limited supply as a premium feature, as nowhere has Ram said they are actually dropping the hemi completely just that they're introducing the 3.0.

2500's, gassers aren't going anywhere in that market so maybe that's the next move for us v8 guys.

Mister Luck · Mar 28, 2022

HK1837 said:
The Toyota 1GR V6 sounds awful! Mine has extractors and a good sized single system, I had to do it as the stock system was useless with the blower. It has a lot of muffler on it but you can't polish a ****!

The Australian Ford 4.0L inline six was a nice engine in turbo version. It was up to well over 300kW (over 400hp) off the showroom floor.

Ford Barra engine - Wikipedia

en.wikipedia.org

Obviously you've never seen
Japanese “Hikaru dorodango”

Fatbob Frank · Mar 28, 2022

I'm fine with the change but it shouldn't come at a premium.
The nay sayers have been calling for a replacement to the Hemi for years.
( as well as more than a few loyal Mopar fans)
Chances are it's going to be standard motor pretty soon with the H.O. version coming in the HDs...
Hard to beat that Hemi sound though!

I know a few Raptor owners that despise the V6 they were saddled with in spite of the big HP #s and rumor has it that Ford plans on bringing the V8 back as an option unless that's changed...

IvoryHemi · Mar 28, 2022

Fatbob Frank said:
with the H.O. version coming in the HDs...

There is no way this engine makes its way into the HD lineup

Regcabguy · Mar 28, 2022

Irishthreeper said:
Everytime I look at a modern engine I reflect back on my first car. ‘55 Chevy with a 265 V8. Could have fit that engine in twice and I could sit on the radiator or wells to work on it. Plugs, point and condenser anyone ?

Nope or adjusting drum brakes.

Aircommuter · Mar 28, 2022

PoMansRam said:
Damn oil filter looks to be in the same awesome spot. LOL!!

Same spot as what? Certainly not the current hemi.

PoMansRam · Mar 28, 2022

Aircommuter said:
Same spot as what? Certainly not the current hemi.

I didn't think I'd have to explain it..

I'm thinking they're both going to land in the same area, right above chassis and steering components.

Certainly your kiwki-loob tech will know.

bobdenver1961 · Mar 28, 2022

Is this new motor "slanted"?

New 3.0L inline-6 has arrived

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