Update: Jeep Reveals V8 Wrangler Rubicon 392 Concept With Hemi

[Nannook of the north]

I'm on a diesel forum...The EcoDiesel is a junk engine, that's why I didn't wait for one. IF they had gone with a common rail I-4 Cummins (whatever the current iteration of the 4BT is), I would have waited. But that EcoDiesel is NOT worth a penny more than the standard 3.6L V6 engine. Especially $5,000 upgrade. No thanks. But I see a lot of people only hearing the words turbo-diesel, and Gladiator, and then buying one only to get fooled.

I think if the market starts going the way I think it will, there will be V8's in both platforms to compete for sales. It's the nature of the beast.

Preach

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[Alabama Mud Machine]

Preach

It's the way it's always been... Look at Ford vs. Chevy vs. Mopar. Bigger, faster, more displacement, better handling, superchargers, etc...

 

[Nannook of the north]

It's the way it's always been... Look at Ford vs. Chevy vs. Mopar. Bigger, faster, more displacement, better handling, superchargers, etc...

4bt with compound turbos and an Allison trans

Now I'm just dreaming

 

[Alabama Mud Machine]

4bt with compound turbos and an Allison trans

Now I'm just dreaming

Personally, not a fan of Allisons... They can't handle more than about 50-75 continuous HP over stock ratings, and they're expensive as holy shit to beef up and build. The 68RFE behind my 6.7 Cummins isn't much better. The Suncoast MEGA68 with a Billet triple-disc converter is about $12,000 including install. BUT, it can handle 1,500+ RWHP. So, yeah.........Diesel performance gets expensive quick. Folks don't ever tell you about the expensive parts. You just hear, turbo, injectors, and fuel system and I can make 800 RWHP.....Well, yes and no....For about 1-2 dyno pulls or drag-strip pulls, and then your trans is shitting bricks unless it's built to handle that much or more HP.

 

[Nannook of the north]

Personally, not a fan of Allisons... They can't handle more than about 50-75 continuous HP over stock ratings, and they're expensive as holy shit to beef up and build. The 68RFE behind my 6.7 Cummins isn't much better. The Suncoast MEGA68 with a Billet triple-disc converter is about $12,000 including install. BUT, it can handle 1,500+ RWHP. So, yeah.........Diesel performance gets expensive quick. Folks don't ever tell you about the expensive parts. You just hear, turbo, injectors, and fuel system and I can make 800 RWHP.....Well, yes and no....For about 1-2 dyno pulls or drag-strip pulls, and then your trans is shitting bricks unless it's built to handle that much or more HP.

Hard to get good auto's especially when Dodge is making them. What do you want behind it a 47RE

I have one in my 02 Cummins. When it's cold I don't think it ever shifts.

 

[Alabama Mud Machine]

Hard to get good auto's especially when Dodge is making them. What do you want behind it a 47RE

I have one in my 02 Cummins. When it's cold I don't think it ever shifts.

HELL NO! I wouldn't put that evil on anybody. I would like to see beefed up version of the 8-speed we already have. It's a very nice and smooth transmission. One of the best I've seen (ZF builds a good transmission, that's who helped build Ford's name).

 

[Nannook of the north]

HELL NO! I wouldn't put that evil on anybody. I would like to see beefed up version of the 8-speed we already have. It's a very nice and smooth transmission. One of the best I've seen (ZF builds a good transmission, that's who helped build Ford's name).

It does seem to be a good transmission

 

[Factoid]

The 8HP75 ZF is the answer. It can handle over 700 ft-lbs of torque and is every bit as smooth and consistent as it’s little brother.

Half the cost of a hemi swap is labor - taking it apart and then outing it back together. If it came oem, all that cost is out. The reasonable upgrade cost should be closer to $12k.

Let’s talk about “crumple zones” for a minute. They are one of several ways to lessen damage to passengers during a front end collision. The real intent is to absorb energy, so the occupants don’t absorb it. Another way is a submarining drivetrain Where the engine/tranny absorb impact energy by using it to move That large mass under the passenger compartment. More recently, front overlap or partial crash test (the one where the 2020 Wrangler just give up and flips over) have become a challenge. Here the engine is mostly taken out of the picture, so you have the same challenge whether 3.6 or 5.7/6.4 with the only real difference being compensation for the heavier engine. Not a big deal.

The easiest way to defend a poor decision is to cry safety. I call bs.

Finally, to Bama’s point, look at the new Corvette. Only available with one engine, but a mild upgrade with the performance package. We know from past experience that next year or the year after or maybe the year after that we will see a GS, Z06 and maybe even a ZR1. They never commit, simply tease and leak knowing the diehards will trade in at a big loss to have the biggest dick, er, engine in the neighborhood. Marketing playing to human nature.

 

[Oilburner]

If the modern small Cummins engines are so great, you would think At least one automaker would be using their 4 cyl diesel in a mid-size truck... Nope not even Nissan. All they have now is the 2.8L, and there are no tunes that I am aware of - if my 4.0 ever craps the bed, I Might consider one for my LJ but I doubt it would be worth the effort/cost.
I ran an Ecodiesel GC for over 125K miles now I have 7K on my diesel Wrangler. Outstanding power with efficiency. You all keep moaning for a V8 in a new Jeep = it will Never happen.

 

[Nannook of the north]

I'd be homeless if I could get one with this in it

https://www.cummins.com/engines/repower

 

[Oilburner]

Really? It might be a nice improvement to the old 4.0L but look at the numbers
2.8L 161 HP / 310 LB_FT
3.6L 292 HP / 260 LB_FT
3.0L 260HP / 442 LB_FT

 

[Nannook of the north]

Really? It might be a nice improvement to the old 4.0L but look at the numbers
2.8L 161 HP / 310 LB_FT
3.6L 292 HP / 260 LB_FT
3.0L 260HP / 442 LB_FT

Oh that’s just out of the box. I’m sure there’s already an over the counter tune for it to increase both numbers 30% and add larger injectors. Very cheap and safe to get those numbers up.

 

[Gatorgladiatorcanuck]

Maybe I'm just in the honeymoon phase with my Gladiator and trying to justify my recent purchase, but I find that the Pentastar has plenty of power for this platform. This coming from a guy with an 850hp Mustang sitting in the garage. Certainly wouldn't complain about having a 392 under the hood but I have a feeling the added cost and fuel economy will make it impractical for 95% of buyers.

Me too, everyone complains of lack of power, I have no issue with the power of my Overland. Its cool they are adding a V8 option for people who want it though.

 

[Alabama Mud Machine]

If the modern small Cummins engines are so great, you would think At least one automaker would be using their 4 cyl diesel in a mid-size truck... Nope not even Nissan. All they have now is the 2.8L, and there are no tunes that I am aware of - if my 4.0 ever craps the bed, I Might consider one for my LJ but I doubt it would be worth the effort/cost.
I ran an Ecodiesel GC for over 125K miles now I have 7K on my diesel Wrangler. Outstanding power with efficiency. You all keep moaning for a V8 in a new Jeep = it will Never happen.

The EPA and government are trying hard to destroy dino-diesels. They hate the inline 6 Cummins, which is why for the 2007 model year, they (Cummins) had to bump up the displacement from 5.9L to 6.7L to account for all the (un)necessary EPA bullshit required to pass emissions, and still retain the same reliability and performance.

 

[Dwosgood]

Once again, I’d much rather have a 5.7 option than a 6.4. I don’t see the need for that much engine in my gladiator. It would be cool though!

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