Pentastar power increase

[Silverator]

And it is not only we who will benefit from a tune. Challengers, Chrysler 300's and vans and everything else will too. And that right there is a HUGE market.

The old adage = "if you build it, they will come"....plays into the game here. You don't need "forum support" - you only need a tuner with a vision. If they need 50-100 "buyers" before they start down the road, then they are lousy businessmen. I can guarantee that there are DOZENS of people on this already - crunching numbers, analyzing viability, watching, listening, and brainstorming. When one of them gets on it, we'll have it. Until then, you have the opportunity to be "the one" and make huge bank. What are you waiting for !! You have the vision!!!!

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[GEETCH]

I understand what OP is trying to get at and I can appreciate the enthusiasm. I had my engine modified to put out more power, why? because i could and wanted too, did it "need" it? no. I had a 2007 Tacoma, and it did pull a 4k trailer from Co to Wa, it did it, just didnt like it and i had a manual at the time. The Gladiator pulled the same thing with not too much effort. Shortly after owning my Gladiator (28 days) I had a magnuson supercharger installed at around 3k miles. Its been 2 years and 38k miles later, no issues other than it sucks down gas like its on a bender. I wheel it any chance i get and the latest trail was 3 days over the Dusy Ershim.

 

[ShadowsPapa]

3.6l has integral exhaust in the heads. There’s likely no gains from porting as you have a cast style log between the cylinders

Yeah, I knew how it was made/designed - why I mentioned you can't use improvements like headers and so on.
But that does not mean that you can't do porting....... look at the change in the shape of the exhaust exit on the diagram I posted. They can modify the shape or size of the passage from the valve out.
someone who knows what they are doing could likely change how that head flows. Might be around valve shrouding, or the passage just below the valve head, modifying any curves or direction changes. Maybe polishing in some areas, restricting others? An expert with a flow bench and with experience on head flow might just be able to work some tricks.
Not saying they WOULD, just that unless a pro looks at it - it's all amateur speculation.
It behaves a lot like fluid dynamics.

Some times people think of porting as port matching or just opening up the ports to make them larger. That's amateur stuff.

 

[ShadowsPapa]

Darren Parsons figured it out…
??‍ in a home shop in the desert…. Just saying things can be done, even when the internet says no….

I'll never understand why people pull engines out the top. Drop the whole shootin' match out the bottom, roll it out on dollies, build what you want, roll it back under and pull it up, bolt it in.
Maybe that's just posting there in that picture, but even my Eagle all went out the bottom and the modified assembly back in the same way and I did it with 1 arm in a sling (literally, I'd ripped off a bicep and just had surgery to reattach)

 

[Zachanadandy]

I understand what OP is trying to get at and I can appreciate the enthusiasm. I had my engine modified to put out more power, why? because i could and wanted too, did it "need" it? no. I had a 2007 Tacoma, and it did pull a 4k trailer from Co to Wa, it did it, just didnt like it and i had a manual at the time. The Gladiator pulled the same thing with not too much effort. Shortly after owning my Gladiator (28 days) I had a magnuson supercharger installed at around 3k miles. Its been 2 years and 38k miles later, no issues other than it sucks down gas like its on a bender. I wheel it any chance i get and the latest trail was 3 days over the Dusy Ershim.

The dusy is not an easy trail. In a gladiator it would be rough. Even in our JLUR it was tight between some of the trees and boulders. No desire to run it again. Been there, done that. Wouldn't even dream of taking the mojave through it, but it's not built for the rocks.

 

[SRO]

Ya know, its crazy to me just how many people are pounding the OP about wanting to up his ponies. The engine is fine, leave it alone. The Rubicon and Mojave models exists because stock is NOT and will never be, "fine".

Maybe it's a generational thing? I'm not bagging on anybody in particular, I grew up with a dad who stuffed a bored out 307 with Fuelie heads into a Chevy LUV and had side pipes on it. Later, I had a mid 80's caddy with a 70 Caddy 500 under the hood. He also did some nutso things to a 55 chevy. That bored out 307 later got put into my '85 El Camino SS. You've got lots of guys who throw chevy V8s into CJs or anything else you can squeeze a small block into. Lawn tractor anyone? ( I get it, those were simpler times) but I've never known JEEP people to shoot down the hopes of squeezing more power out of...well....anything. I'll take 5 or 10 horses anywhere I can get em. Yes, there's a point of diminishing returns but that's up to the individual builder to decide where that is. I saw a couple people mention RV cams and valve timing, that's viable, even if it only nets you 5 whp.

Why bash the desire to improve? Because Jeep didn't build it that way, it shouldn't be done? Why the hell are any of us lifting these things? Why'd we put bigger tires on them? Why regear? The stock height and tires were fine!

OP is only asking for other people to speak up if they'd be willing to pony up some cash to get some more power. I'm down for more power, I can't do $8k but I'll upgrade my exhaust and intake when it comes time to replace the stock. Easier breathing is easier breathing. I'll upgrade and get a better gear oil for the diffs and transmission because it'll net me an extra horse and some more longevity. My pocketbook dictates the speed and extremes of my upgrades to a strong degree. I've seen people take new rigs home and chop beds down by a foot! YOU CAN"T DO THAT! just buy a Wrangler! C'mon people. ?

It's not like the guy is trying to tell you to add some extra chrome, sheesh!

For my part, I'm not bashing anyone. Go have fun with your car. I'm just thinking some of the goals and expectations I've read here are unrealistic. Like one person mentioned 50lbs for $500-1000. Also, not shifting down is unrealistic with a gas engine that makes it's peak power/torque fairly high. That's all I'm saying.

 

[Alpine Warthog]

For my part, I'm not bashing anyone. Go have fun with your car. I'm just thinking some of the goals and expectations I've read here are unrealistic. Like one person mentioned 50lbs for $500-1000. Also, not shifting down is unrealistic with a gas engine that makes it's peak power/torque fairly high. That's all I'm saying.

Agreed! Constructive criticism is helpful. Like Dude, you know you're not get any downforce with that giant wing till you "X" MPH, right? Or, Giant stacks sticking up the bed of your diesel aren't really helping. What I'm frustrated by are the ones that ask, "why bother? it's good enough."

 

[SRO]

The old adage = "if you build it, they will come"....plays into the game here. You don't need "forum support" - you only need a tuner with a vision. If they need 50-100 "buyers" before they start down the road, then they are lousy businessmen. I can guarantee that there are DOZENS of people on this already - crunching numbers, analyzing viability, watching, listening, and brainstorming. When one of them gets on it, we'll have it. Until then, you have the opportunity to be "the one" and make huge bank. What are you waiting for !! You have the vision!!!!

The pentastar has been out 13 years and is in 10 million cars. The demand seems to have been met with power adders.

 

[GEETCH]

The dusy is not an easy trail. In a gladiator it would be rough. Even in our JLUR it was tight between some of the trees and boulders. No desire to run it again. Been there, done that. Wouldn't even dream of taking the mojave through it, but it's not built for the rocks.

I hear you on that, its a one and done for me as well. I didnt leave without some trail damage though. bent my tie rod, ripped out my rear driver side light and put a small dent on the bed panel, rocked into a tree. other than that normal stuff but definetally had to take it slow. i also went south to north oh boy. and going up thompson hill, never again lol.

 

[smlobx]

The pentastar has been out 13 years and is in 10 million cars. The demand seems to have been met with power adders.

The kicker is that in some other vehicles it’s producing over 300 HP…in stock form…

 

[ShadowsPapa]

The kicker is that in some other vehicles it’s producing over 300 HP…

And that tells us that a tune, MAYBE different cam profiles? can matter............
I can see why the differences - the Jeep isn't a sports car. It's made to tow, haul, and do well in the rocks and sand and mud.
A Challenger isn't.

Dang, I wish I had taken a picture of the guys numbers chart on this car - it was a slightly modified 3.6 that wow'd.
Instead I took a picture of his cat. Hmmmm.

 

[ChrisNLA]

I'll never understand why people pull engines out the top. Drop the whole shootin' match out the bottom, roll it out on dollies, build what you want, roll it back under and pull it up, bolt it in.
Maybe that's just posting there in that picture, but even my Eagle all went out the bottom and the modified assembly back in the same way and I did it with 1 arm in a sling (literally, I'd ripped off a bicep and just had surgery to reattach)

I'd wager because the engine won't go out the bottom of a lot of vehicles, and normal folk don't have the equipment to get them out of the bottom even it was designed that way.

4th gen Camaro is way easier to drop the cradle out the bottom but without a two post lift or other heavy equipment you aren't getting it done. My 5th gen can go either way relatively easy. On my '93 Chevy I pulled the core support and slid the trans and engine in together through the front as one unit relatively easy, unassisted, with a borrowed engine hoist.

 

[ShadowsPapa]

I'd wager because the engine won't go out the bottom of a lot of vehicles, and normal folk don't have the equipment to get them out of the bottom even it was designed that way.

4th gen Camaro is way easier to drop the cradle out the bottom but without a two post lift or other heavy equipment you aren't getting it done. My 5th gen can go either way relatively easy. On my '93 Chevy I pulled the core support and slid the trans and engine in together through the front as one unit relatively easy, unassisted, with a borrowed engine hoist.

Not uncommon for the factory to lift the engine and transmission (and transfer case if involved) in from the bottom.
It takes a lot to work in a long off-center assembly from the top and doing engine only means lining things up for the bell housing, etc.

Good stands and a gantry crane...........
Going in ->

I lowered the car onto stands, moved the chain hoist to the engine, pulled it up a bit, raised the transmission jack up a bit, put in the cross member bolts and the whole drivetrain (less rear axle of course) was in place using one arm.
The engine, transmission, transfer case, front differential, both cross members and front half of the exhaust was all in place.

 

[SRO]

The kicker is that in some other vehicles it’s producing over 300 HP…in stock form…

Ya that bit would be nice. I think it was tfl who asked how they got more out of the truck and FCA told them basically intake and tune which was the same answer they gave for the hemi on truck vs challenger.

 

[Mr._Bill]

One thing that has not been mentioned, in this thread, is the tune on the Gladiator is purposely choked due to the cooling restrictions of the body design.

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