Is there a way to reduce turbo lag on the 2.0T?

rockclimber

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I’ve noticed the turbo lag in my 2.0 more often in the past month and would love to hear some solutions for it. I use my Jeep as a daily driver but take it out on steep rocky and muddy climbs every month or so (been working weekends for awhile now so less time to take it out). From what I understand I could swap parts out and turn it into a 3.6 (a little much!), get a pedal commander which seems simple and like the best option. I don’t think I have the etorque (had it for over a year and just haven’t thought about it😬) Anyways! I would appreciate it if someone could boil down the facts of each of these “upgrades”? and comment on what it did for them. Thank you in advance!
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OnlyOne

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I’ve noticed the turbo lag in my 2.0 more often in the past month and would love to hear some solutions for it. I use my Jeep as a daily driver but take it out on steep rocky and muddy climbs every month or so (been working weekends for awhile now so less time to take it out). From what I understand I could swap parts out and turn it into a 3.6 (a little much!), get a pedal commander which seems simple and like the best option. I don’t think I have the etorque (had it for over a year and just haven’t thought about it😬) Anyways! I would appreciate it if someone could boil down the facts of each of these “upgrades”? and comment on what it did for them. Thank you in advance!
Beat on it for a couple days. The computer will learn. meaning, mash the accelerator quickly from every stop for a couple days. Mine did the same thing and your lag will be almost unnoticeable.
 

rockclimber

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Beat on it for a couple days. The computer will learn. meaning, mash the accelerator quickly from every stop for a couple days. Mine did the same thing and your lag will be almost unnoticeable.
I’ve had it for over a year now and notice it mostly after stop sign intersections where I have started to mash on it just to get it going and it still takes a few seconds to get me faster than rolling.. I’ll continue mashing it a bit but it does feel like it would be hard on the engine..
 

syismaster1

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Beat on it for a couple days. The computer will learn. meaning, mash the accelerator quickly from every stop for a couple days. Mine did the same thing and your lag will be almost unnoticeable.
As crazy as it sounds this worked for me.
 

omega145

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Turbos by nature, will have some lag. Anyone who says otherwise is delusional.
Yes and no. I've driven and owned twin turbo vehicles that had zero lag.

The 2.0 is a torquey little motor matched to a fairly meh transmission. Which is fine, it’s a Wrangler.
The ZF 8 Speed is far from "meh". One of the best automatic transmissions on the market that's found in numerous high performance vehicles.
 

jjvincent

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Yes and no. I've driven and owned twin turbo vehicles that had zero lag.



The ZF 8 Speed is far from "meh". One of the best automatic transmissions on the market that's found in numerous high performance vehicles.
I have a BMW X3 M40i and it has the ZF 8 speed in it, plus a turbo 6. That car is a rocketship, especially when you put it in sport plus mode. When they say 4.5 seconds from 0-60, they ain't kidding. I can tell you, if it has lag, I can't feel it. It's not like a 1979 Porsche 930 where it hit you like a ton of bricks at 4000 rpm. They only had a 4 speed in them.

Honestly, my 2.0T Jeep has too much power for what it is. It's not a sportscar. I think that having an 8 speed reduces the lag as there are more ratios to choose from. An Alfa Romeo Guilia has a similar engine and transmission package but it's in a 500 lb less package. It's considered a sports sedan. After driving the two, I think the Jeep feels more sporty just because you'd not expect it to do what it does. Probably sitting up high makes it seem different too. At least it's not like driving a 1992 Jeep with a 4 cylinder and 37" tires on it. You got your foot mashed to the floor just to keep up with traffic.
 

bigbaozi

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The ZF 8 Speed is far from "meh". One of the best automatic transmissions on the market that's found in numerous high performance vehicles.
One of the best automatic transmissions on the market is kind of like being the smartest kid in the special class... It's probably FCA's programming, but the transmission isn't great, I've had the Wrangler a year and a half now and it's still just tolerable. I don't care how awesome it is in other applications, it's meh in this one. If you don't drive it the way it wants to be, it gets caught out, upshifts too fast, downshifts harshly.

I've driven worse, I've driven better.
 

omega145

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One of the best automatic transmissions on the market is kind of like being the smartest kid in the special class... It's probably FCA's programming, but the transmission isn't great, I've had the Wrangler a year and a half now and it's still just tolerable. I don't care how awesome it is in other applications, it's meh in this one. If you don't drive it the way it wants to be, it gets caught out, upshifts too fast, downshifts harshly.
There is a big difference in the quality or performance of a transmission from their shifting capabilities to their reliability and ability to handle a wide range of horsepower/torque. Not all transmissions are created equally and that includes manuals if that's what you mean by that terrible analogy about the smart kid in the special class. It seems like way more people are happy with the ZF8 Speed auto in their Wranglers and I'm one of them. I've owned 3 Wranglers and almost 30 other vehicles in my lifetime (autos and manuals) with the 8SP ZF being among the best.
https://www.jlwranglerforums.com/forum/threads/zf-8-speed-automatic-transmission-review.8550/
 

The Fixer

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It's probably FCA's programming, but the transmission isn't great, I've had the Wrangler a year and a half now and it's still just tolerable. I don't care how awesome it is in other applications, it's meh in this one. If you don't drive it the way it wants to be, it gets caught out, upshifts too fast, downshifts harshly.

I've driven worse, I've driven better.
I've felt the same about mine...I definitely think it's a programming issue. Is there a tuner/programmer on the market that can alter anything with the trans? The 8-speed in my wife's 3.6 JLU is much smoother on upshifts/downshifts and doesn't lug a lower gear while going uphill before violently upshifting like my 2.0 JL at times.

I also had a 5.7 Charger R/T before my JL with the 8-speed and that was fantastic.
 

oldcjguy

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I've felt the same about mine...I definitely think it's a programming issue. Is there a tuner/programmer on the market that can alter anything with the trans? The 8-speed in my wife's 3.6 JLU is much smoother on upshifts/downshifts and doesn't lug a lower gear while going uphill before violently upshifting like my 2.0 JL at times.

I also had a 5.7 Charger R/T before my JL with the 8-speed and that was fantastic.
I have a SuperChips TrailDash3 and it has a tune for the trans. I will say this though. I never had any problems with the factory tuning of the 8sp in my 2.0. I thought it was brilliant. The TD3 tune just makes it drive even better.
Maybe swing by your dealer and see if there is an updated calibration available for your transmission first? Or maybe just have them reset your adaptives as do a relearn?
 

Windshieldfarmer

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I think the transmission tune with my 2.0 is great….the best automatic I’ve owned. Anything but “meh”…. There can be a bit of lag off the line…but that’s not a transmission issue. With a slightly larger hybrid battery the lag could be eliminated…
 
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