3.6 vs 2.0

[Rploaded]

Seriously - drive what you want a motor is a few thousand dollars. If it breaks 10 years after purchase get a new one.

It’s just seems so foolish to keep rehashing this. Almost every auto manufacturer has gone DI as the technology and tuning has gotten much better. If you feel ready to enjoy it great, if you prefer the older proven tech well then that’s an option for now as well.

Maybe we should all go back to carburetors, crank windows, manual locks, etc. Ditch the internet and cell phones too. Then we can have these same conversations at a bar like people have been doing for over a century now.

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[melman8r]

I am so tired of hearing people generalize that direct injection engines are an issue!!!

I have lived with issue in my VW, my Tacoma has both direct and multi-port injectors which seems logical to prevent intake buildup of crud. The ONLY reason I'm buying a Jeep is the 3.6 engine is not direct injected. Plain and simple, there is not a fuel additive or oil that's going to make a difference in a DI only engine. Fingers crossed, good luck with purchase, it's a gamble.

 

[AnnDee4444]

As much as I appreciate Mishimoto for making this video, I really wish they would have used Jeeps with same tire & differential ratio for an even comparison. Also it's funny how he talks about eTorque, but the graphs start above eTorques effective range.

 

[Odyssey USA]

As much as I appreciate Mishimoto for making this video, I really wish they would have used Jeeps with same tire & differential ratio for an even comparison. Also it's funny how he talks about eTorque, but the graphs start above eTorques effective range.

With a torque converter and it’s inherent slippage down low, if you can dyno that low, it can be inconsistent which is another variable. I wonder if the eTorque cars have a different converter stall rpm, as in tighter so the assist isn’t wasted in converter slippage.

 

[BRuby]

The more dyno data we all get to see just helps to inform users and dispel misinformation and guessing. The vid helped corroborate what one might suspect is happening from seat of the pants anecdotal data.

Even with the broad variance in power and torque curves - end timed speed runs like 0-60 etc btwn these engines are still close. So this type of info - even tho not perfect - is very useful. They did their dyno tests as a baseline for the specific mods they intended to do down the road.

In regards to DI vs MP - here are some explanations.

https://www.cnet.com/roadshow/news/whats-so-great-about-direct-injection-abcs-of-car-tech/

https://www.counterman.com/direct-injection-engine-vs-port-fuel-injection/

 

[ViperJon]

What makes you say that they are not an issue? Older versions had crud all up in the intake and valves because of egr in intake and no fuel washing down to clean it.

So you’re saying the engine designers just said “screw it we know these motors are all going to fail but who cares”?

 

[melman8r]

So you’re saying the engine designers just said “screw it we know these motors are all going to fail but who cares”?

Do your research, don't believe it, but its a known issue with Audi/VW, Lexus/Toyota and more. Lexus was one of the first manufacturers in the direct injection motors and they ran into major crud issues. The new Lexus motor which was put into the Tacoma now has dual injection to overcome the issue. Ford is doing the same thing, VW has built-in cleaning ports in some motors now. Why are manufacturers doing it now, because they are required to meet the CAFE standards set by the Federal govt. I experienced it first hand with my VW and vowed never again to own a DI motor as long as there was an option not to own one. Jeep has filled that requirement with the V6 in the Wrangler, mine is on order. Have good night.

 

[Odyssey USA]

Do your research, don't believe it, but its a known issue with Audi/VW, Lexus/Toyota and more. Lexus was one of the first manufacturers in the direct injection motors and they ran into major crud issues. The new Lexus motor which was put into the Tacoma now has dual injection to overcome the issue. Ford is doing the same thing, VW has built-in cleaning ports in some motors now. Why are manufacturers doing it now, because they are required to meet the CAFE standards set by the Federal govt. I experienced it first hand with my VW and vowed never again to own a DI motor as long as there was an option not to own one. Jeep has filled that requirement with the V6 in the Wrangler, mine is on order. Have good night.

Correct, it’s been a problem for a while with DI. It’s good to see them adding an injector back in and I’d like to see that change across the board. I own two DI now with no port injector. If I have a problem, I’ll trade them in if signs come up.

 

[melman8r]

Almost every auto manufacturer has gone DI as the technology and tuning has gotten much better.

Better only if you adopt the technology, dual injectors in a DI motor is the better technology, FCA does not have the feature in the JL motor, I asked before deciding which one to order in my 2020 Rubicon. Why haven't added the additional injectors, most likely to save money, DI motors are more expensive to produce in the first place.

 

[PEABUDY]

Do your research, don't believe it, but its a known issue with Audi/VW, Lexus/Toyota and more. Lexus was one of the first manufacturers in the direct injection motors and they ran into major crud issues. The new Lexus motor which was put into the Tacoma now has dual injection to overcome the issue. Ford is doing the same thing, VW has built-in cleaning ports in some motors now. Why are manufacturers doing it now, because they are required to meet the CAFE standards set by the Federal govt. I experienced it first hand with my VW and vowed never again to own a DI motor as long as there was an option not to own one. Jeep has filled that requirement with the V6 in the Wrangler, mine is on order. Have good night.

This is not a Audi/VW/Lexus/Toyota engine. Do you know of issues with this 2.0 setup?

 

[four low]

So how is the DI fouling problem addressed ? Fuel additive won't work, as it would be in the cylinder, not the valve ports ...is disassembly and cleaning the only remedy ?

 

[Revolution_322]

So you’re saying the engine designers just said “screw it we know these motors are all going to fail but who cares”?

Wow really? Is that a serious statement?

 

[Revolution_322]

Do your research, don't believe it, but its a known issue with Audi/VW, Lexus/Toyota and more. Lexus was one of the first manufacturers in the direct injection motors and they ran into major crud issues. The new Lexus motor which was put into the Tacoma now has dual injection to overcome the issue. Ford is doing the same thing, VW has built-in cleaning ports in some motors now. Why are manufacturers doing it now, because they are required to meet the CAFE standards set by the Federal govt. I experienced it first hand with my VW and vowed never again to own a DI motor as long as there was an option not to own one. Jeep has filled that requirement with the V6 in the Wrangler, mine is on order. Have good night.

Thank you for saying it now i dont have to type it all out . Dont forget about the earlier chevy 3.6 in the colorado etc... fact is that the only reason multi point exists is to wash down the intake with fresh fuel.

 

[Revolution_322]

So how is the DI fouling problem addressed ? Fuel additive won't work, as it would be in the cylinder, not the valve ports ...is disassembly and cleaning the only remedy ?

Idk maybe seafoam at reg intervals in a vacuume line

 

[BRuby]

Haha! Seafoam has actually worked to smooth out our 30yo Honda lawnmower ages ago. Was running rough but added direct into the air intake and all is good since. Have been using about 20y now. Seriously runs like a champ and always starts first pull.

Same with our Yama OB. We run it thru the tank and all is good as well. 20yo engine. Starts every time. Super harsh environment.

Also use in our gas and diesel vehicles with turbos. Actually is some good sh!t. But yeah DI with MP is the better tech. Always we run our turbo diesel like we stole it. Italian tune-ups are best - as slow city driving for a diesel is a no no.

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