JB4 for Mazda 2.5L Turbo

[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]

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]

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]

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]

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.

[Mazdanation]

registered for updates. Can't wait to see what the 2.5t can do with tuning.

[Honeybadger]

2021 Turbo 3

As an owner of the 2021 Mazda 3 Turbo in a Hatchback, I'm very excited to see it being developed. I've been waiting patiently for parts and tuning solutions, and came across this forum through the Burger site. I had a 2019 I bought in 2019 loaded up with everything from CS, now I have to wait again, haha. Already working on the sound system and matting.

Hope development is going well, I'll be eagerly awaiting updates.

[Terry @ BMS]

Just as a development update we finally got our car back last week with the new o2 sensor. I was able to get EWG control up and running, but it's looking like we need to take MAF control to do everything we want to do. MAF is running a SENT signal rather than digital or analog so it's a little tricky, but we're making progress.

[2018Mazda6]

Thanks for the update Terry! Good luck.

[Honeybadger]

Just as a development update we finally got our car back last week with the new o2 sensor. I was able to get EWG control up and running, but it's looking like we need to take MAF control to do everything we want to do. MAF is running a SENT signal rather than digital or analog so it's a little tricky, but we're making progress.

That's great news on the catalytic and o2 sensor! Out of curiosity, what is a SENR signal?

[Terry @ BMS]

That's great news on the catalytic and o2 sensor! Out of curiosity, what is a SENR signal?

It's a newer protocol for handling sensor inputs, one that is a little more complicated for us to process. But we have other SENT based platforms so not a huge deal. Just a little extra time to sort out how to handle it.

[legendr34]

Hello Terry.

Will this eventually be available for the 2017 Mazda CX-9?

[Terry @ BMS]

Hello Terry.

Will this eventually be available for the 2017 Mazda CX-9?

We plan to cover the entire platform, although technically some of the older models will be a different part number as they appear to use a different TMAP sensor.

Post up photos of your MAP/TMAP sensor and I can verify what you'll need.

[335is-dct]

Just as a development update we finally got our car back last week with the new o2 sensor. I was able to get EWG control up and running, but it's looking like we need to take MAF control to do everything we want to do. MAF is running a SENT signal rather than digital or analog so it's a little tricky, but we're making progress.

Eagerly awaiting this product because my 2021 Cx-5 turbo needs some help in the power department...

[jcrout7992]

Terry,
The majority of the Mazda CX-5 owners with the 2.5T have experienced a consistent power loss in 1st and 2nd gear when the temperature drops below 20 degrees Fahrenheit. It’s independent of traction, precipitation, engine and transmission temps, you name it. When it drops below 20, there’s no boost until 3rd gear. If you heat soak the engine when it’s less than 20 outside you’ll get normal power for the first pull. After that it drops back down to nothing. Have you seen anything like that so far?

[Terry @ BMS]

Terry,
The majority of the Mazda CX-5 owners with the 2.5T have experienced a consistent power loss in 1st and 2nd gear when the temperature drops below 20 degrees Fahrenheit. It’s independent of traction, precipitation, engine and transmission temps, you name it. When it drops below 20, there’s no boost until 3rd gear. If you heat soak the engine when it’s less than 20 outside you’ll get normal power for the first pull. After that it drops back down to nothing. Have you seen anything like that so far?

Not something we've experienced but it hasn't been that cold. Photos of your MAP/TMAP connections? We can get a basic system up and running on those now I think to start collecting more tuning data.

On the CX models I think the TMAP is mounted to the top of the intercooler, likely under a plastic cover, as shown in this IC install photo we saw online. I want to confirm it's the same 4 wire sensor on your manifold.



Compared to the Mazda3 which has a 3 wire connection for TMAP which is easy to reach from the top, to the left of the airbox.

[Honeybadger]

Beta Testing

Any idea when you think there may be some beta products able to be released to us tech and data driven folk? I just got done with a complete overhaul of the audio system from the factory amp out (JL Fix86 and Twk88) and am ready for my next project, lol. There are supposed to be intake and exhaust systems coming along soon too from Corksport. ETA on exhaust is completely unknown atm as it's supposed to be a full ******** and high flow ***/no *** then back. But intake 'should' be this spring. I'm eager to get my hands on the system.

[Terry @ BMS]

I have a basic system up and running but before we can really release something need to evaluate EWG control, MAF control, and maybe oxygen sensor control. But for those who don't mind helping out with logging, plugging in some addl wires to the PNP connector when we added in additional loops, etc, we could open up some ALPHA testing.

[jbradt]

I have a basic system up and running but before we can really release something need to evaluate EWG control, MAF control, and maybe oxygen sensor control. But for those who don't mind helping out with logging, plugging in some addl wires to the PNP connector when we added in additional loops, etc, we could open up some ALPHA testing.

I’d be interested in the alpha testing.

[Terry @ BMS]

Preliminary install guide: https://www.n54tech.com/instructions...B4_install.pdf

[Terry @ BMS]

I’d be interested in the alpha testing.

OK drop me an email we'll set it up. [email protected]

[Honeybadger]

OK drop me an email we'll set it up. [email protected]

I'm happy to alpha test as well. I'll DM you my email and contact number. Best on here or through BMS?

[Terry @ BMS]

I'm happy to alpha test as well. I'll DM you my email and contact number. Best on here or through BMS?

My email is [email protected]

[jbradt]

My unit was delivered today after a small delay at the FedEx hub. Solid build quality, I'm impressed!

I'm hoping to install tonight but not sure I can. I will definitely get to it over the weekend though.

[Terry @ BMS]

My unit was delivered today after a small delay at the FedEx hub. Solid build quality, I'm impressed!

I'm hoping to install tonight but not sure I can. I will definitely get to it over the weekend though.

[josueom]

What results have you achieved? greetings from Mexico

[AR185163]

Super excited to see this. I currently have a CX-5 and would love to do ALPHA testing. I would love to support either way, do I need to confirm the TMAP sensor at the intercooler?

[AR185163]

Not something we've experienced but it hasn't been that cold. Photos of your MAP/TMAP connections? We can get a basic system up and running on those now I think to start collecting more tuning data.

On the CX models I think the TMAP is mounted to the top of the intercooler, likely under a plastic cover, as shown in this IC install photo we saw online. I want to confirm it's the same 4 wire sensor on your manifold.

[ATTACH]100489[/ATTACH]

Compared to the Mazda3 which has a 3 wire connection for TMAP which is easy to reach from the top, to the left of the airbox.

[ATTACH]100490[/ATTACH]

Took a look at my CX-5 and removed part of the tray. You are correct, the TMAP is mounted on the passenger side of the intercooler. I couldn’t get a good picture of the TMAP but looks to be a 4 wire connection that also has an additional spot where it disconnects on the side of the intercooler. Unfortunately I couldn’t get in there any further to read the part number.

Hopefully this helps somehow.

[blacksox28]

Made an account just to monitor the status and wanted to state that you'll definitely have another customer if this will work on the 2021 CX-5. Very excited!

[TimPro]

Should hopefully have a system up and installed by the end of this weekend on my CX-5, will keep you updated.