The JB4 is a plug & play tune available for turbocharged vehicles. The JB4 tuner installs between your car's sensors and the DME/ECU (computer) and manipulates vehicle performance through these connections making your vehicle much faster.
Full Answer
How easy is it to install the jb4?
Agreed that install is pretty easy to DIY (even with large hands). The one thing I miss about the JB4 compared to stage 1 is the logging/tinkering with map 6. If you bought new then the support from George is excellent in setting up map 6 and logging is easy. If not then the Golf R US forum has lots of help/resources.
What is the jb4 tuning system?
Unlike other similar-looking tuning systems the JB4 is also able to tap in to CANbus - analogous to a spinal cord - allowing it to communicate and receive information from not only the ECU but also the transmission computer, stability control module, dash module, and many others.
What is the difference between a jb4 and flash tune?
Performance: The JB4 is able to achieve a dramatic performance increase, completely transforming your vehicle. But it’s also more limited relative to a flash tune as it is working off the factory flash tables.
What is the jb4 programmable computer?
The JB4 is a programmable computer that attaches between the ECU and vehicle sensors allowing it to adjust your vehicle’s tuning by tapping into areas of the factory flash mapping that are not normally available.
How does the JB4 tuner work?
The JB4 is a programmable computer that attaches between the ECU and vehicle sensors allowing it to adjust your vehicle's tuning by tapping into areas of the factory flash mapping that are not normally available.
Can VW detect JB4?
Some rumors are going around here about VW being able to detect piggyback tunes like the JB4. From the JB4 man himself: not true. They are impossible to detect once removed. Even then, one case of a repair getting covered is no guarantee your's will be.
What is JB4 Golf R?
The JB4 is a true user adjustable plug and play solution for all MQB based models in the VW Audi Group range. Power Gains: Starting at 45bhp and 45ft lb with 91 octane/95Ron with + 4.50psi boost over stock on the default setting.
Is JB4 tune good?
I think the JB4 is a great tune for what it was put out there to accomplish. Before tuners were able to unlock the DME on our cars, it was definitely ahead of its time, and it continues to be relevant today. Adjustments on the fly - Flash tunes cannot change maps without cutting the car off and reflashing.
Can dealerships detect JB4?
Actually according to jb4, if it's installed and uninstalled correctly each time. The dealership would have no way of seeing any tampering. Bmw will detect your JB4 if they dig deep enough.
How much HP does JB4 add?
In short: yes. A general rule of thumb is 10hp for every 1 psi of boost added.
Does JB4 void warranty?
The JB+ or JB4 does not void your warranty. However if there is a failure or a part that could be attributed to the aftermarket device, that warranty claim could well be denied.
How do I connect my JB4 Bluetooth?
0:215:16JB4 Wireless Connect Kit Install and Review - AutoInstruct - YouTubeYouTubeStart of suggested clipEnd of suggested clipNow we'll show you how to install the jokbal connect kit on the JV 4 main board. So first of all we'MoreNow we'll show you how to install the jokbal connect kit on the JV 4 main board. So first of all we'll do the vga style connector.
What's the difference between jb1 and JB4?
So as I understand it, the big difference in the products is the jb1 is just plug and play and there isn't much adjustment whereas the jb4 has multiple maps and each one can be customized.
Does JB4 remove speed limiter?
You can only remove the speed limiter with a flash tune as well as add burble. The Hex tune will raise the speed limiter to 192mph. Not to discredit you, but some people, like myself, don't have the time or simply aren't in an area where a shop exists that can fiddle with the ECU and tune it specifically to the car.
Which is better RaceChip or JB4?
Racechip is easy to install, SUPER Quality, and easily knocks 0.80 seconds off your 0-100mph time. JB4 will add more average and peak power and go faster than RaceChip if you want to push boost and parts.
What's better JB4 or bootmod3?
If you are stock bootmod3 stage 1 is faster than Jb4 Map 1. The car is much much happier on bootmod3. Bootmod3 is also much smoother vs jb4 for daily driving and traffic. If you are staying stock and not going past stage 1 I would at least recommend a charge pipe upgrade.
Can dealers detect piggyback tunes?
Any tune can be discovered if the dealer/manufacturer wants to look into it. Any major issue with the transmission/engine most likely will be looked into and the warranty will most likely be voided if they find a tune.
Does a JB4 void warranty?
The JB+ or JB4 does not void your warranty. However if there is a failure or a part that could be attributed to the aftermarket device, that warranty claim could well be denied.
Does APR Stage 1 void warranty?
Expect it to void the drivetrain warranty--not just engine but probably tranny, axles, etc. Brakes would be a debatable area perhaps. But it should not void unrelated items--body, other electronics, HVAC, etc. As stated, expect they can see the tune, deleted or not.
What is a piggy back tune?
A piggyback tune is similar to a "chip" tune in that it plugs directly into the ECU (also known as the DME). It does NOT re-write the factory ECU tune, though. Rather, piggyback tunes alter certain signals and sensors to accomplish the tunes goal.
What to do if playback doesn't begin?
If playback doesn't begin shortly, try restarting your device.
Is JB4 easy to install?
Agreed that install is pretty easy to DIY (even with large hands). The one thing I miss about the JB4 compared to stage 1 is the logging/tinkering with map 6.
What is a JB4?
The JB4 is a programmable computer that attaches between the ECU and vehicle sensors allowing it to adjust your vehicle’s tuning by tapping into areas of the factory flash mapping that are not normally available . Unlike other similar-looking tuning systems the JB4 is also able to tap in to CANbus - analogous to a spinal cord - allowing it to communicate and receive information from not only the ECU but also the transmission computer, stability control module, dash module, and many others. This CANbus connection provides a complete set of real-time operational data which is then dynamically incorporated into your JB4 tuning.
How much does a JB4 cost?
For more advanced higher-power maps, “custom tuning” is usually required which can double the flash cost. The JB4, on the other hand, ranges from $479-$900 and includes 8 unique maps, including maps for pump gas, race gas, ethanol fuels (E85), factory tuning, VALET mode, WMI integration, and a user-defined map. Because of the dynamic nature of JB4 tuning, it is able to self-tune critical and difficult-to-dial-in aspects of tuning such as wastegate control and fuel trim range for various modifications, climates, and vehicle conditions, largely eliminating the need for expensive and time-consuming custom flash tuning. Unlike most flashes and custom-tuned flash maps which are disposable, the JB4 can be removed and reinstalled on your next vehicle or resold down the road.
What is CANbus in a car?
What is CANbus anyway? CANBus is the spinal cord that connects the many modules or computers throughout your vehicle together and allows them to operate as a cohesive team. When a technician plugs a tool in to the OBDII port for diagnostics, it’s tapping in to the CANbus allowing full access to the entire vehicle. The JB4 includes this same level of vehicle-wide computer integration. A JB4 with its CANbus connection can read virtually every sensor on your vehicle including critical internal calculations like fuel trims and knock count. This allows the JB4 to take gas pedal position, throttle position, oil temperature, water temperature, intake temperature, engine speed, air/fuel ratio, fuel trims, ignition advance, knock, and countless other factors in to your tuning, providing smoother, stronger, and safer performance. On the other hand boxes like RaceChip without CANbus are limited to reading only the boost sensors they attach to resulting in a “MAP clamp” tuning approach. Common symptoms of non-CANbus related tunes include stuttering, poor shifting, and reduced top-end performance. Since these systems can’t correct the conditions causing the issue, their only solution to any tuning issue is to “turn down the boost”.
What is flash tune?
A flash tune, on the other hand, modifies the tables on the ECU directly for higher performance. Usually loaded via the vehicles gateway on the OBDII port, but in some applications directly to the ECU by drilling a hole or disassembling the ECU to access the processor inside.
Can a JB4 do a flash tune?
But it’s also more limited relative to a flash tune as it is working off the factory flash tables. While performance is usually very similar between the two there are a few things the JB4 just can’t do including changing fuel injection timing (exhaust pops and bangs), raising the RPM limiter, adjusting valve timing, and in some cases, raising the speed limiter.
Can I run a JB4 and a flash map?
Can I run both? One unique feature of the JB4 compared to other tuning systems is that it’s fully compatible not only with the factory flash map but with off the shelf flash maps, custom tuned flash maps, or any flash map you want to run. In fact we regularly publish free JB4 back end flash maps meant to be used in conjunction with the JB4 for those customers who are comfortable with flashing their car and looking to add features not possible JB4-only. The addition of flash mapping to the tuning flexibility, features, and safety the JB4 provides gives you the best of both worlds and is commonly found in record setting vehicles.
How to connect JB4 to phone?
To enable the Bluetooth wireless connect kit, download and install the JB4 Mobile app (IOS/Android), create an account (username, password), login, turn on your car and Bluetooth on your phone, and hit the Connect button inside the app. If you see an error, see next screen.
What is the color of the JB4 harness?
Overview: The JB4 harness has two similar looking connectors on it. The one with the brown color ed wires will attach to the TMAP sensor in the front of the engine, while the one with the rainbow wires will attach to the MAP sensor on the back of the intake manifold.
Is JB4 easy to install?
I just took some clearer pictures and made some comments, hopefully, to make it easier for the next guy. Overall, it's a very easy installation. This guide also covers one common connection error and shows you how to unlink the Wireless Connect Kit from your account before selling the tuner. I'm just a satisfied user (former) and have no affiliation with JB4 or Burger Motorsports.