new I6 vs old V6

[mwilk012]

The 4.0 straight six was one of the most overrated pieces of shit engines ever.
Heavy, gutless, fuel sucking and most years in the TJ’s had problems.
That being said, I’ve had a handful of them over the years and never had any problems with any of them but also never owned one with more than 110k miles on it.

Problems with the engines themselves? As long as you’re not trying to keep the damn thing from leaking oil, they’re amazing. Gutless, absolutely. Reliable as hell though. The electronics attached to it are total crap though.

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[LKG]

Wranglers usually run a span of about 10yrs before a new generation comes out so if you are waiting for the next gen it may not be until 2027-28

We still haven't seen that mid model refresh either. Thanks to post pandemic issues, I'm guessing.

 

[WXman]

What makes the Pentastar engine so reliable is that it has no forced induction, no direct injection, no MDS, etc. It's as simple as you can get in today's ICE world.

The Hurricane, by contrast, has all of those things and by its very nature will be a more complex engine with more failure points.

Do you want horsepower and torque? Or do you want an engine that will run 200k miles without asking for anything? You can't have both.

 

[WXman]

The 4.0 straight six was one of the most overrated pieces of shit engines ever.
Heavy, gutless, fuel sucking and most years in the TJ’s had problems.
That being said, I’ve had a handful of them over the years and never had any problems with any of them but also never owned one with more than 110k miles on it.

This is true. Never in my life seen one that wasn’t leaking oil from everywhere. Crank sensors die all the time. Have you ever tried to replace the crank sensor on one of those POS engines? You have to be an octopus. They had issues with the heads cracking between cylinder 2 and 3. They drank gas like they were sponsored by OPEC. They made NO power. Everybody always talked about how they were “torque monsters”. 230 lb/ft bro? That just goes to show you how pathetic the 1990s were. Heavy, leaky, thirsty, anemic POS boat anchors….that is what the 4.0 engines were.

Do you know how often I miss my 4.0s? The only time they ever cross my mind is when somebody on a forum mentions them again, and then I just get pissed off all over again. Lol.

 

[Bzinsky]

And never forget the amazing 2JZ GTE Supra engine. Probably the best turbo 3.0L inline 6 the world has ever seen. Loved mine, bolt on parts made it an absolute monster.

There’s a new and improved 2jz.

Designed by bmw, dissected and modified to eliminate weak links by toyota, the b58

 

[Vinman]

This is true. Never in my life seen one that wasn’t leaking oil from everywhere. Crank sensors die all the time. Have you ever tried to replace the crank sensor on one of those POS engines? You have to be an octopus. They had issues with the heads cracking between cylinder 2 and 3. They drank gas like they were sponsored by OPEC. They made NO power. Everybody always talked about how they were “torque monsters”. 230 lb/ft bro? That just goes to show you how pathetic the 1990s were. Heavy, leaky, thirsty, anemic POS boat anchors….that is what the 4.0 engines were.

Do you know how often I miss my 4.0s? The only time they ever cross my mind is when somebody on a forum mentions them again, and then I just get pissed off all over again. Lol.

I don’t like the 4.0’s as much as you do.

 

[Hennessey17]

Turbos aren't really that complicated... and there was a time when a 24 valve, DOHC V6 was considered exotic... a lot of people don't like change, they like what they know, and they're going to go kicking and screaming until the next change is made, and then all of a sudden they'll love the incumbent that they used to hate.

 

[Old Jeeper]

okay, so yes i understand horsepower can be a good thing but i have a thought…

every time i read something about the V6, everyone always says, “there’s 2.2 gazillion made” and that they are tried and true. “a solid workhorse”. etc. i also hear in reference to turbos - “the turbo just adds more crap to go wrong” and “simple is better”. lastly, everyone says don’t buy first year productions. so keeping all of this in mind, why is it that when an I6 thread comes out, everyone can’t wait for it to make its way into a wrangler?? the only thing i can put together is that the increased HP is worth the risk of having a first year turbo engine? correct???

keep in mind, i’m not for or against an I6 engine, i’m just making an observation resulting in a question.

The TJ I 6 is the best wheeling (ROCK crawling) engine ever.

80% of available Torque at idle. The engine is about as bulletproof as any engine ever. Expect to get 300k miles out of with no breakage, its a million mile engine if you do basic maintenance. It will burn almost anything you pour in the tank that will ignite.

The Torque curve is flatter than my first girlfriend without her Wonder Bra on.

If the new engine is as good as the old TJ engine, then I WANT IT, but NOT the Turbo model, it wants to drink premo fuel...regular gas is good enough.

 

[Vinman]

The TJ I 6 is the best wheeling (ROCK crawling) engine ever.

80% of available Torque at idle. The engine is about as bulletproof as any engine ever. Expect to get 300k miles out of with no breakage, its a million mile engine if you do basic maintenance. It will burn almost anything you pour in the tank that will ignite.

The Torque curve is flatter than my first girlfriend without her Wonder Bra on.

If the new engine is as good as the old TJ engine, then I WANT IT, but NOT the Turbo model, it wants to drink premo fuel...regular gas is good enough.

It’s not hard to make a somewhat reliable engine by making it twice as heavy as it should be all the while giving it half the power it should have and drink twice as much fuel as should.

 

[west tex]

A 3.0L I6 that makes 420-500 horsepower?

As an old guy, I'm amazed at the power and torque today's ICEs can squeeze from such small displacements. Of course, a lot of that power comes with extra complexity and maybe some fragility, too. But as the world continues to march towards electric vehicles of all sizes and applications, efficiency in gas engines will no doubt continue to climb to keep them economically viable.

Would I like to see the new Stellantis GME offered in Wranglers?

You bet!

 

[Old Jeeper]

It’s not hard to make a somewhat reliable engine by making it twice as heavy as it should be all the while giving it half the power it should have and drink twice as much fuel as should.

Works great for me, carries my Jeep everywhere, never an issue or problem in nearly 100k miles changing nothing but oil, oil filter and plugs. That said the one in the 90s were not as good that is for sure, but from 2001 on never an issue. In fact I sold me 2001 with 47k on it to one of my best friends and he drove another 50 k miles, no problems.

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