Is tuning really necessary?

alexccs

Member
First Name
Alex
Joined
Sep 9, 2021
Messages
15
Reaction score
4
Location
Tampa, FL
Vehicle(s)
2021 Unlimited Rubicon
Hello there…. Brand new to the Jeep world.
Just purchased a 2021 JL Rubicon, installed 37s x 13.50 R20 with a 3.5 in lift kit
Is tunning your Jeep necessary? If so, is that something I can do myself, or should I take it to a dealership / shop?
TIA
Advertisement

 

DaltonGang

Well-Known Member
Joined
Sep 29, 2018
Messages
1,452
Reaction score
1,761
Location
Houston, Tx
Vehicle(s)
2018 Wrangler JLU Sport S, Rubicon Suspension, Tires, and Rims. Firecracker Red
Hello there…. Brand new to the Jeep world.
Just purchased a 2021 JL Rubicon, installed 37s x 13.50 R20 with a 3.5 in lift kit
Is tunning your Jeep necessary? If so, is that something I can do myself, or should I take it to a dealership / shop?
TIA
Tuning, not "Tunning".
But, I know what you mean, and the answer is "No". Enjoy your Jeep stock. Unless you are a computer expert, and know how to reprogram an ECM, you cannot do it yourself.
 

Jeepeto

Well-Known Member
First Name
Josh
Joined
Jul 24, 2021
Messages
1,206
Reaction score
3,184
Location
North Texas
Vehicle(s)
2021 JLUR XR
Build Thread
Link
Occupation
Sparky
Vehicle Showcase
2
Hello there…. Brand new to the Jeep world.
Just purchased a 2021 JL Rubicon, installed 37s x 13.50 R20 with a 3.5 in lift kit
Is tunning your Jeep necessary? If so, is that something I can do myself, or should I take it to a dealership / shop?
TIA
I’m going to assume by tuning you mean calibration. Z Automotive sells a device called a Tazer JL Mini, it allows you to recalibrate for your larger tires. Your speedometer will read correct and it will give you access to many other features.
 
OP
OP
alexccs

alexccs

Member
First Name
Alex
Joined
Sep 9, 2021
Messages
15
Reaction score
4
Location
Tampa, FL
Vehicle(s)
2021 Unlimited Rubicon
I’m going to assume by tuning you mean calibration. Z Automotive sells a device called a Tazer JL Mini, it allows you to recalibrate for your larger tires. Your speedometer will read correct and it will give you access to many other features.
Thanks bro
 
OP
OP
alexccs

alexccs

Member
First Name
Alex
Joined
Sep 9, 2021
Messages
15
Reaction score
4
Location
Tampa, FL
Vehicle(s)
2021 Unlimited Rubicon
You may also wanna check the Superchips Flashpaq, it offers a few tuning possibilities.
Thanks…. Is that something that’s self explanatory to do?
 

aldo98229

Well-Known Member
First Name
Aldo
Joined
Nov 16, 2019
Messages
6,105
Reaction score
13,498
Location
Bellingham, WA
Vehicle(s)
2018 Jeep Wrangler Unlimited Sahara, 2018 Fiat 124 Spider Abarth
Occupation
Market Research
Vehicle Showcase
2
For 37s, yes, you are going to want to recalibrate your speedometer, which in turn recalibrates your automatic transmission’s shift points.

I got the Tazer Mini. It allowed me to disable ESS, recalibrate my speedometer, lower the threshold on the TPMS, activate the halos on the LEDs, and disable those annoying weather alerts. It allows dozens of other functions.

Regular price is $330; someone just found a coupon for $270 or so.

Good luck!
 

Steph1

Well-Known Member
First Name
Steph
Joined
Jul 21, 2021
Messages
199
Reaction score
166
Location
Quebec, Canada
Vehicle(s)
Jeep JLU Sahara, Audi Q5, Porsche 911
Thanks…. Is that something that’s self explanatory to do?
I owned a flashcal and not flashpaq on my JK and now use the Jscan on my JL, but Superchips is a company that I recommend. their product are very user friendly. I recommend you check it out and watch reviews and videos to learna lot more than I know.
 

WranglerMan

Well-Known Member
First Name
Will
Joined
May 8, 2018
Messages
3,327
Reaction score
2,509
Location
Katy Texas
Vehicle(s)
2018 Wrangler JLU Sahara
Occupation
Gas Pipeliner
Vehicle Showcase
1
My vote goes toward JSCAN for simple things like tire size and a few other things but if your say just wanting to turn off ESS Tazer or Smart Stop/Start is the ticket.

Before doing anything check your speedo with an app like Speedbox or other GPS method to see how far its off, if only off a few MPH i would not bother.
 

R00STER

Well-Known Member
First Name
Rich
Joined
Apr 23, 2021
Messages
120
Reaction score
167
Location
STL
Vehicle(s)
2021 JLUR 3.6L - 6sp
What type of engine do you have? The 2.0T or diesel may benefit more from a tune than a naturally aspirated 3.6L.

Its been awhile since i looked into the data, but as I recall, I don't think you can get much of a gain on a NA 3.6L. If that's what you have, save your money for other mods, or possibly a supercharger.
 
OP
OP
alexccs

alexccs

Member
First Name
Alex
Joined
Sep 9, 2021
Messages
15
Reaction score
4
Location
Tampa, FL
Vehicle(s)
2021 Unlimited Rubicon
For 37s, yes, you are going to want to recalibrate your speedometer, which in turn recalibrates your automatic transmission’s shift points.

I got the Tazer Mini. It allowed me to disable ESS, recalibrate my speedometer, lower the threshold on the TPMS, activate the halos on the LEDs, and disable those annoying weather alerts. It allows dozens of other functions.

Regular price is $330; someone just found a coupon for $270 or so.

Good luck!
Thanks man….. I’ll definitely look into it
 
OP
OP
alexccs

alexccs

Member
First Name
Alex
Joined
Sep 9, 2021
Messages
15
Reaction score
4
Location
Tampa, FL
Vehicle(s)
2021 Unlimited Rubicon
What type of engine do you have? The 2.0T or diesel may benefit more from a tune than a naturally aspirated 3.6L.

Its been awhile since i looked into the data, but as I recall, I don't think you can get much of a gain on a NA 3.6L. If that's what you have, save your money for other mods, or possibly a supercharger.
I do have a 3.6L
 
OP
OP
alexccs

alexccs

Member
First Name
Alex
Joined
Sep 9, 2021
Messages
15
Reaction score
4
Location
Tampa, FL
Vehicle(s)
2021 Unlimited Rubicon
For 37s, yes, you are going to want to recalibrate your speedometer, which in turn recalibrates your automatic transmission’s shift points.

I got the Tazer Mini. It allowed me to disable ESS, recalibrate my speedometer, lower the threshold on the TPMS, activate the halos on the LEDs, and disable those annoying weather alerts. It allows dozens of other functions.

Regular price is $330; someone just found a coupon for $270 or so.

Good luck!
Bro, I’ve been looking at the Tazer Mini videos, and it looks pretty self explanatory…. Plus, the reviews I’ve been reading online are really good. Probably a stupid question, but how can I find the threshold for the TPMS? I got 37s…….

And lastly, where did you find the coupon for the $270.00?
Thanks!!!!!!
 
Advertisement

Rancho
 
Advertisement
Top