2016年2月17日 · Don't need to prime them. They already have a decent amount of oil in them coming off our VSR balancing machine. Install the turbos, start engine, boost your face off...

This thread is to discuss the basics of the new JB4 v28.8+ "duty bias" tuning parameters, and general adjustment of the JB4's boost control PID system. Tuners and "shade tree" tuners who like to evaluate their logs and tinker may find this information useful.

2022年9月27日 · We are proud to (finally) announce the newest version of JB4 Mobile! We've been quietly spending the last year rewriting the entire JB4 Mobile application in a new language which will give a near identical user experience between iOS and Android. This will also allow us to keep updates between the two platforms much more

Empowering Lives Together! Fun to watch.

2018年4月17日 · The JB4 includes built in logging tools for all major engine criteria including ignition advance (knock) in all four cylinders, air/fuel, fuel trims, boost pressure, throttle, and anything else you'd want to look at. In addition the latest firmware updates allow you to monitor boost, timing, and/or AFR in dash real time. Mike

2024年1月26日 · JB4 works by modifying the MAP and TMAP sensor readings to tell the car’s DME that more (or less) boost is needed. The EWG works the same, but for wastegate position. The JB4 has two modes of boost control, which is how it achieves power gains. Additive - the boost targets are an offset on top of stock boost requests.

2024年5月8日 · For those of you that use the JB4 tune, how do you like it? Are there any major downsides? I know the spark plugs need to be upgraded and properly gapped for a more reliable application for the tune.

2024年2月13日 · The JB4 is the most advanced piggyback-style chip tuner on the market. It receives sensor inputs between the engine and ECU to modify signals like boost pressure, airflow, and more. This produces significant power gains by …

The JB4 is a plug and play Audi tuner that plugs into easy access sensors in the engine bay and works with your factory ECU tuning to remap your boost, timing, and fueling for optimal performance and reduced turbo lag.

2019年5月2日 · Due to the logging capabilities of the JB4, I’ve uncovered the root cause of the ubiquitous ~4200 RPM spike commonly seen on nearly all dyno graphs. The red line represents ignition timing (cylinder 1).

This is the thread for discussion and details on the new JB4 anti-lag feature. This feature allows you to pull 25 degrees of timing on the fly using either the volume button on your steering wheel or brake pedal to spool up the turbos before starting a race.

The JB4 features CANbus connectivity for more advanced tuning, direct AFR control, advanced safety systems for boost, air/fuel ratio, fuel trims, and engine knock, boost mapping by gear for improved traction, integrated water/meth control, and much more.

2022年5月26日 · Amazing how a piggy back nets close to 100whp, this car seems to be seriously detuned. Can I post this to the regular WRX sub? 😂. So from the Dyno results seen so far (245-260 stock) this is a massive amount of power. Makes me wonder how detuned this engine is.

2019年12月10日 · For companions, the JB4 puts out about 610 whp, while the Pure900 produces approximately 725 whp (according to the SOS dyno). Testing in uncontrolled environments presents challenges, such as reaction time and getting the same launch, which is …

2016年12月28日 · We would like to introduce users to our latest offering. The unit is called a JB4 which is the name of our most advanced circuit board with CANbus capability. It has been tried and tested over many BMW models and it is time for the evolution to start for the VW market.

2025年1月2日 · The JB4 is a solid entry-level tuning solution for BMW enthusiasts. It offers moderate performance gains—especially with ethanol blends—while maintaining reliability and stock-like drivability. Features like code-clearing and easy installation add to its appeal.

2019-2022 JB4 tuner with blue tooth connection for sale. Not even a year old. Chat with other members on any topic.

JB4 BETA Interface: Latest Interface Download. When updating your interface you may need to first go to "add remove programs" and "remove" your previous JB4 interface.

The JB4 features CAN-Bus connectivity for more advanced tuning, direct AFR control, advanced safety systems for boost, air/fuel ratio, fuel trims, engine knock, boost mapping by gear for improved traction, integrated water/meth control, and much more.