[Terry @ BMS]

Use subject to terms and conditions posted at http://www.burgertuning.com/terms.html

THIS PART IS LEGAL FOR USE ONLY IN COMPETITION RACING VEHICLES AS DEFINED UNDER CALIFORNIA LAW, AND IS NOT LEGAL FOR USE IN ANY OTHER MOTOR VEHICLE. California law defines a "racing vehicle" as "a competition vehicle not used on public highways." (Calif. Health & Safety Code 39048) This part may only be used on competition racing vehicles operated exclusively on a closed course in conjunction with a sanctioned racing event. Competition-only motor vehicles may not be driven to a racing event on a public highway and must be transported on a trailer or other carrier. USE OF THIS PART IN ANY OTHER VEHICLE MAY SUBJECT YOU TO FINES AND PENALTIES FOR VIOLATION OF FEDERAL AND/OR STATE LAW, WILL VOID YOUR WARRANTY FROM BURGER MOTORSPORTS, INC, AND CAN VOID YOUR VEHICLE'S WARRANTY. It is your responsibility to comply with all applicable federal and state laws relating to use of this part, and Burger Motorsports, Inc hereby disclaims any liability resulting from the failure to use this part in compliance with all applicable federal and state laws.

Order Here: https://burgertuning.com/products/jb...37638730449070

JB4 BETA Install Guide: https://www.n54tech.com/instructions...B4_install.pdf

JB4 Mobile Smart Phone wireless connection directions Click here
BMS data cable hard wired directions and software Click here

Map Guide:
Map 0: JB4 disabled, factory tuning
Map 1: +3psi, suitable for all pump fuels
Map 2: +4psi, suitable for 93+

Up to 30% E85 can be used on map1 or map2 for increased performance vs pump fuel alone.

V1 Application Dyno Testing: N54Tech.com - International Turbo Racing Discussion - View Single Post - JB4 for Mazda 2.5L Turbo

BMS Intake Dyno Testing: N54Tech.com - International Turbo Racing Discussion - View Single Post - JB4 for Mazda 2.5L Turbo

How to update firmware:

Download firmware using the new JB4 Mobile firmware database or externally by clicking this link.



JB4 Dyno testing:


JB4 dragy testing:

[Terry @ BMS]

So the genius Mazda dealer filled our new car with 87 octane (lol), figured we'd do a few dragy runs to help burn the tank off. Best of which is attached. Apparently they rate the engine for 225hp on 87 octane, 250hp on 91+ octane, so we'll dragy 91 octane next before we install the JB4 prototype.

[RayRah000]

👍🏻

[Terry @ BMS]

91 octane baseline runs, not bad! About as fast as a tuned Honda Civic 1.5T.

[2018Mazda6]

Subscribing to this thread.

I have a 2018 Mazda 6 with the 2.5t and am excited to see development on this engine.

[Terry @ BMS]

For V1 systems adding in the new MAF connection, first update the JB4 to the v4 or new firmware in the app. Select option bit6 on and save settings so the JB4 is aware you're a V1 application. This can be done any time after the install also if you forget to do it before.

Then open hood, lock doors, hide key, wait 5 min for ECU/car to power down.

Open the JB4 enclosure and the pins plug in to the JB4 spots. There are little numbers next to them. Check twice before plugging a pin in as they can only be removed with a dsub removal tool. See reference photo below. It's best to route the pins through the rubber harness grommet so they seal nicely when the enclosure is closed.

Purple is male connector goes to pin 8 on DB25
Blue is female connector goes to pin 14 on DB25

Finally attach the MAF connection to the MAF sensor and original harness.

[2018Mazda6]

Originally Posted by Terry @ BMS

It looks like the Mazda6 and earlier models use an air/air intercooler, while the new Mazda3 uses an air/water intercooler. There is another minor difference with the TMAP pressure sensor. But basic tuning should be the same!

Whew, at first, I thought you were going to say the 6 wouldn’t be applicable due to the minor differences. Glad to hear that tuning will be the same!

[Terry @ BMS]

Making some decent progress here. Was able to add knock and learned knock factor to the logging channels. Making good progress on fuel control also. Once the logging is buttened up I'll start posting up some logs.

[2018Mazda6]

[RayRah000]

Originally Posted by Terry @ BMS

Making some decent progress here. Was able to add knock and learned knock factor to the logging channels. Making good progress on fuel control also. Once the logging is buttened up I'll start posting up some logs.

👍🏻

[Terry @ BMS]

Issue cropped up with an o2 sensor so testing is on hold a few days as I wait for a new factory o2 sensor to show up.

Crap turns out its on world wide backorder, need to wait 3+ weeks now.

[2018Mazda6]

Originally Posted by Terry @ BMS

Issue cropped up with an o2 sensor so testing is on hold a few days as I wait for a new factory o2 sensor to show up.

Thanks for the update, good luck!

[Payam @ BMS]

Originally Posted by Terry @ BMS

Issue cropped up with an o2 sensor so testing is on hold a few days as I wait for a new factory o2 sensor to show up.

LOL, glad you're having fun!

[Soundsophist]

I have a 2019 Mazda 6 with the turbo. I’m VERY excited about seeing this develop! The stock tune absolutely falls on its face above 4500rpm.

[Terry @ BMS]

Yes the top end what I'm hoping to improve once we finally get fuel control sorted out. The car runs 10:1 from the factory for most of the power band!

BMS has a new AWD dynojet scheduled to be installed early Feb so we'll have to wait until then for factory and tuned dyno numbers.

[RayRah000]

Any updates Terry??

[Terry @ BMS]

Our car has been parked the last 3 weeks waiting for an o2 sensor to show up from Japan. Such is life during COVID. =/

[RayRah000]

3+ weeks to get an O2 sensor...that’s not good...to think the dealer would have them in stock

[Terry @ BMS]

Yep pretty lame. But what can you do. They are not available anywhere in the USA right now.

[tegxsi]

The 2.5T has been around since 2016.
So the o2 sensor used in the CX9, CX5 or 6 2.5T won't work?

Is the part#?
NTK 27069 {#PY8V188G1}

[Terry @ BMS]

Tried it, doesn't work.

[ecoil]

Just registered to show my support - very much looking forward to an option for the 2.5T!

[Terry @ BMS]

Now they are telling me early to mid Feb. What a total waste of time lol.

[Jaydawson46]

Think it's most Japanese parts.... waiting on seat for my Yamaha Mt07 from UK as it's not sold in US. Just called em directly this morning to follow up and they said Yamaha told them they are over month behind. We will have to learn to be patient during this covid crap. Oh, and I'm following as well...can't wait to see the results... gonna purchase asap for our Mazda 6 2.5T!!

[Terry @ BMS]

On the plus side I got the connectors I've been waiting for to do the direct boost solenoid control, so can't wait to dig in to that. It's the last major piece other than oxygen sensor control we need to maximize power with the JB4.

Our new AWD dynojet should show up sometime next month too.