Jeep JL Wrangler 3.6L vs 2.0T HP/TQ curve comparison (dyno chart)

[Rockmaninoff]

I know how turbo motors work, and the higher pressures involved, but honestly you're making it seem like you'll need a new motor at 40,000 miles.
Let time tell how well these engines last.

Not even the manufacturer can tell you how long their engine will last (except maybe toyota but it's a moot point) but WXman's operative two words were "on average".

Higher pressures = more prone to failure

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[Joe]

Not even the manufacturer can tell you how long their engine will last (except maybe toyota but it's a moot point) but WXman's operative two words were "on average".

Higher pressures = more prone to failure

I would imagine, with today’s twin scroll turbos, that your engine would fail due to a non-forced induction cause before the boost would make any real impact. I would be more concerned with electronics related failures stranding me than the engine failing due to boost induced wear.

 

[Sean L]

Not even the manufacturer can tell you how long their engine will last (except maybe toyota but it's a moot point) but WXman's operative two words were "on average".

Higher pressures = more prone to failure

As I've said, let time tell how well these engines last. Turbochargers have been around for decades and vehicles designed from the manufacturer to be turbocharged have the same longevity in mind as their naturally aspirated counterparts. Its partly why this motor only has a 270 Hp tune rather than the originally rumored 360 Hp. If you let the turbo just go wide open all the time of course you're going to burn you engine out, but driven under normal circumstances there shouldn't be any reason to think it won't last long.

My company has been making good use of F-150s with EcoBoost engines and the oldest of them has well over 100,000 miles without issue, and it is frequently towing an excavator to various job sites. Now had the foreman just been driving like a maniac all the time and doing burnouts like all these youtubers do with their EcoBoost trucks then yes, the engine would be burned out.

 

[Rubi Blue]

As I continue to do my research, while waiting for my local dealership to get a Blue JLU Rubicon, I came across many discussions about the 3.6 engine vs the 2.0T. There are also some discussion about turbo lag and there were feedbacks from the community comparing their turbo lag experience on the Subaru.

Personally, I have owned number of cars in my life, I had a 2000 Jeep WJ for about 6yrs which I took off road back then (Reason I want to get back to a real Jeep this time), then I had a 2006 STi for 5 yrs traded it for a used 2007 Porsche 997 C4S Cab. I then again traded it in for a BMW 235i XDrive Cab 1.5yrs ago. The BMW is nice & fast, but I think it's too refined for my taste, and doesn't excite me anymore like the other cars.
Comparing the 3 engines, the is laggy and need a sec to spoolup the Turbo. However, the raw surge of TQ pull hard, pure fun.

Here is the Mustang Dyno chart (I went in for a ProTune)

The Porsche engine is NA, so nice a smooth as the RPM climbs, the engine sounds great. Shift the MT down to 4000RPM, then it pull away all the way to 7K.

The BMW, well, TQ is available instantly with almost any RPM with 0 lag. The 9 speed AT is so much faster than my 2 MT when it comes to speed. (my lag of MT skill =P), but I think it's because everything is designed so perfect that I am not excited in just 1.5yrs.

I plug in some engine specs onto excel for the Jeep 3.6L & 2.0T, then the M235i. For the Jeep info, I found them on:
2.0T
http://www.automobile-catalog.com/curve/2018/2616695/jeep_wrangler_2-door_sport_2_0_turbo.html
2017 ver. 3.6
http://www.automobile-catalog.com/curve/2017/1576565/jeep_wrangler_3_6_v6_sport.html

Here is the Combined comparison excel chart, and I hope it's useful for the Jeep community.

Thanks! Great Info. I have the 3.6 and love it. Am novice and don't see how I'd need/want any more Torque... Thought I'd be the only one with a Blue Rubicon (named her Rubi Blu).... Well at least a Novice with Rubicon and what it can do. Already have paint chips here and there from gravel/mud spray.... but she does clean up nicely.

 

[rodhotter]

with a slush box the manufacturer has more control over your driving!! a manual is surely more durable + YOU can better use the turbo! every new year it gets worse with more PITA stuff to limit your driving + protect fragile parts!!!

 

[Zandcwhite]

Not even the manufacturer can tell you how long their engine will last (except maybe toyota but it's a moot point) but WXman's operative two words were "on average".

Higher pressures = more prone to failure

Higher pressures like all diesel engines, boosted or not? Those pesky, prone to failure, half million mile work horses?

 

[SecondTJ]

Higher pressures like all diesel engines, boosted or not? Those pesky, prone to failure, half million mile work horses?

turbo diesels have a higher life expectancy than a turbo gas engine.

 

[Headbarcode]

Higher pressures like all diesel engines, boosted or not? Those pesky, prone to failure, half million mile work horses?

It all boils down to who's ass is in the seat. I've run several vehicles, both natural and boosted gas engines, past the half million mile mark before needing to pop the heads and pan for a rebuild.

My diesels ran long enough for the rest of the vehicle to dissolve past the point of retardedly dangerous. My record was with a 1975 mercedes 300d. It was showing its age real bad but ran like a top so I kept going. One day the trunk latch got stuck, so I threw the groceries in the back seat. As soon as I yanked the stuck back door open, the roof buckled all the way across and the car sagged enough that everyone was flashing their brights on my ride home. Next morning it started and ran beautifully all the way to the scale at the scrap yard. Odometer read 1,673,791.

To get back to this thread, its been through personal experience and observation that most of the stigma to forced induction and longevity is due to decades of aftermarket boost going on engines not designed to handle it, and/or morons that can't help themselves from constantly stuffing their right foot into it. All too often, I see vehicles smoking like pigs that are barely a couple years old. Still, that foot keeps stuffing.

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