392 Gladiator V8 Hemi confirmed by Jeep CEO!

[ShadowsPapa]

Some Rams get one. Hello Jeep, are you listening?

New to the conversation?
You must be.
Gee, if it was only so easy and there were no cooling issues under load of towing in the JT.
We know all about the Ram....and that the V8 in ram doesn't sell as well, but emotion clouds the bigger picture.

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[WilldWilly]

New to the conversation?
You must be.
Gee, if it was only so easy and there were no cooling issues under load of towing in the JT.

What cooling issues? Dropping a 392 in a Wrangler and can't even get a 5.7 in the JT is like making a sandwich with the ingredients on the outside of the bread. It makes no sense.
So the 5.7 will overheat, but the 3.6 pulling the same weight won't? Bigger radiator, larger cooling fans. I am sure they can figure it out; they put v8's in jeeps back in the 70s with manual transmissions. Sounds like they just make excuses to not do it.

 

[Hootbro]

You do not want that eTorque garbage 5.7L HEMI.

 

[AmosMoses]

What cooling issues? Dropping a 392 in a Wrangler and can't even get a 5.7 in the JT is like making a sandwich with the ingredients on the outside of the bread. It makes no sense.
So the 5.7 will overheat, but the 3.6 pulling the same weight won't? Bigger radiator, larger cooling fans. I am sure they can figure it out; they put v8's in jeeps back in the 70s with manual transmissions. Sounds like they just make excuses to not do it.

It was already decided it was just too hard by our engineers here on the gladiator forum. You need super specialized cooling geometry designed around the 5.7 liter engine like what the gladiator doesnt got. Vehicles that were fitted with the 5.7 needed massive grill openings that actually threatened some bird populations for a short time.

 

[Sweetums]

What do those all have in common? Wide hoods and integrated fenders/bumpers that house accessories and reservoirs. Most also have dual cooling intakes split by the bumper - both of which are design features the JT and JL lack.

What cooling issues? Dropping a 392 in a Wrangler and can't even get a 5.7 in the JT is like making a sandwich with the ingredients on the outside of the bread. It makes no sense.
So the 5.7 will overheat, but the 3.6 pulling the same weight won't? Bigger radiator, larger cooling fans. I am sure they can figure it out; they put v8's in jeeps back in the 70s with manual transmissions. Sounds like they just make excuses to not do it.

And where will all this added cooling go? The pinched Wrangler hood forces reservoirs, electrical, and other engine accessories into the space around the engine. That limits space for radiators already limited by the narrow front end and wide flying fenders.

Diesel owners already know this, the Wrangler shaped front end is just too limiting to get sufficient airflow and cooling. It’s time to redesign the JT and give it a more utilitarian shape inspired by the J10, J20, or M715.

 

[WilldWilly]

All this talk about cooling, and difficult spaces in the gladiator while wranglers drive around with bigger v8s. That aerodynamic piece under the front bumper could be redesigned to allow additional air to the radiator and still move air under the truck. All I am hearing is excuses. The wrangler has a 6.4, so the gladiator should be able to have at least a 5.7 option. Gladiator is Jeep's only truck, and the lack of a v8 is the only thing I do not like about my truck. I can get out, and walk faster.

 

[ChrisNLA]

All this talk about cooling, and difficult spaces in the gladiator while wranglers drive around with bigger v8s. That aerodynamic piece under the front bumper could be redesigned to allow additional air to the radiator and still move air under the truck. All I am hearing is excuses. The wrangler has a 6.4, so the gladiator should be able to have at least a 5.7 option. Gladiator is Jeep's only truck, and the lack of a v8 is the only thing I do not like about my truck. I can get out, and walk faster.

The 392 Wrangler is rated to tow 3,500 pounds. Some of that I imagine is suspension and wheelbase, the rest is likely cooling capacity. The Gladiator in most packages is rated at and north of 6,000 pounds. The point folks are getting at, is it is unlikely that Jeep can get the Gladiator to tow that amount and pass the standardized towing tests with a V8. The V8 produces a lot more heat than the V6. It would not serve Jeep well to offer a V8, then rate it lower on towing and then tell you that you are out of luck when it derates or overheats moving the same weight the V6 did.

They probably also just don't care, or did a study that says it's not worth it, or don't want to drag the CAFE numbers down (I don't care that the current admin put a freeze on fines - that won't last forever), or whatever other reason. The Gladiator is not the bread and butter of Jeep the way the Grand Cherokee or the Wrangler is, and they'll continue to treat is as such.

It doesn't matter to AMW because they are not restricted to any sort of standardize testing that they would have to prove to anyone.

But - I am just perpetuating the likely excuses, and if I need more power I'm just going to buy a full size truck as I am not emotionally / otherwise tied to the Gladiator or need the truck the same way others do. - and I am also not carting around 37's with 1,500 pounds of camping gear stacked up like the Clampetts moving to Beverly Hills while trying to drag a 24' camper, I live in a state where the maximum elevation is 514 feet, and you are lucky to do the speed limit (70MPH) on the interstate most of the time due to traffic.

 

[Sweetums]

Looks like there are reports of overheating engines and power steering pumps in the 392 Wrangler.

 

[WilldWilly]

I just don't buy that. I think the Wrangler is rated at 3500 no matter the engine. Cooling a v8 vs a v6 is no different. Add another core in the radiator, redesign the front lower valance to accept air toward the grill, and put some extractor vents near the back of the hood. Plus, the higher torque v8 will not work nearly as hard as the v6 that does not even make 300 ft-lbs of torque.
I heard similar stuff back in the day when people were putting 302s in Pintos, and I want to put a 351 in. It won't fit, it will overheat. The car can't handle a engine that big. None of that turned out to bew the case.

 

[Sweetums]

I just don't buy that. I think the Wrangler is rated at 3500 no matter the engine. Cooling a v8 vs a v6 is no different. Add another core in the radiator, redesign the front lower valance to accept air toward the grill, and put some extractor vents near the back of the hood. Plus, the higher torque v8 will not work nearly as hard as the v6 that does not even make 300 ft-lbs of torque.
I heard similar stuff back in the day when people were putting 302s in Pintos, and I want to put a 351 in. It won't fit, it will overheat. The car can't handle a engine that big. None of that turned out to bew the case.

I'd rather not have a mud scoop under the bumper pushing dust and crud into my radiator, thanks though.

 

[ShadowsPapa]

t. Add another core in the radiator, redesign the front lower valance to accept air toward the grill,

Boy, you have missed the conversation.
For one thing, ALL radiators have ONE core. The core may have 2, 3 or 4 rows.
Adding another row to the core passes the point of diminishing return (I do classic and performance vehicle, too)
In other words, by the time the air gets to that last row, the air is SO HOT, it doesn't absorb more heat - you have gained nothing, but you have lost because another row in the core also restricts air flow THROUGH the core. So you don't gain any heat extraction and also lose air speed and volume through the core due to the extra tubes and fins.

and the engineers also talked about the valance bit and all - nope, like sweetums said - not in a jeep. That was poo-poo'd pretty quickly if you read about how these were designed for cooling.
wrangler also has other things limiting the towing, including the wheelbase and other factors.
Did you know you can buy a Wrangler with 5000 pound towing?

Cooling a v8 vs a v6 is no different. Add another core in the radiator, redesign the front lower valance to accept air toward the grill, and put some extractor vents near the back of the hood. Plus, the higher torque v8 will not work nearly as hard as the v6 that does not even make 300 ft-lbs of torque.

More LOL - sorry, you burn more fuel, it kicks out more BTUs of heat, and you run into heating issues.
The 3.6 is about the sweet spot for the JT.
A V8 will reduce air flow under the hood and require more cooling when towing 7,000 pounds.

 

[ShadowsPapa]

I'd rather not have a mud scoop under the bumper pushing dust and crud into my radiator, thanks though.

there's a whole article on that - but you summed it up well. It would have caused a lot of issues..

 

[Thunderspud]

When folks roll into a thread 50 pages deep with their gospel........having pretty obviously not even looked at the majority of the previous 49 pages, maybe we should just go ahead and put it out to pasture.

 

[WilldWilly]

How about Jeep just put that engine in, and let the consumer decide. All I hear is bla bla bla. Cna't do this because of that, can't do that because of this. The wrangler gets a v8, and so should the truck. It is a truck based off a vehicle design that helped win a frigging war, and now we can't even get a v8. If the Wrangler gets past this nonsense, then so can the gladiator. No way I will believe the v8 can't be made to stay cool during towing. We can put a man on the moon, but this is unattainable? Sounds like a bunch of wienies who hate ICE run jeep. So many excuses, so little results. When this crappy engine dies, I will not be buying another one. I will have to find something that gets out of its own way. I love my truck, and I hate the only engine choice.

 

[ChrisNLA]

How about Jeep just put that engine in, and let the consumer decide. All I hear is bla bla bla. Cna't do this because of that, can't do that because of this. The wrangler gets a v8, and so should the truck. It is a truck based off a vehicle design that helped win a frigging war, and now we can't even get a v8. If the Wrangler gets past this nonsense, then so can the gladiator. No way I will believe the v8 can't be made to stay cool during towing. We can put a man on the moon, but this is unattainable? Sounds like a bunch of wienies who hate ICE run jeep. So many excuses, so little results. When this crappy engine dies, I will not be buying another one. I will have to find something that gets out of its own way. I love my truck, and I hate the only engine choice.

To be fair, NASA probably didnt have the same space constraints when developing the Saturn V, and being the first on the moon was probably more important than sticking a V8 in a mid-size truck when its hard enough finding one in a half ton anymore

This is purely anecdotal, but I know that my SS Camaro (6.2L V8) brings its 8 quarts of oil completely to temp much quicker in a 3,800 pound bullet than my Gladiator does bringing 5 quarts in a 4,700 pound barn. Coolant as well. Big motor, big heat.

I think you should apply for an engineering slot at Jeep so we can all get a Hemi Gladiator sooner

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