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Default Mazda 2.5L Turbo JB4 Development - 11-29-2020, 04:01 PM

Picked up a new 2021 Mazda3 2.5L Turbo AWD hatchback for development. JB4, intake, and some other parts are in the works! Fun little platform. Will update this post with dragy times and updates as we go.
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Default 12-02-2020, 10:26 AM

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.
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RayRah000 RayRah000 is offline
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Default 12-02-2020, 12:40 PM

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Default 12-02-2020, 01:49 PM

91 octane baseline runs, not bad! About as fast as a tuned Honda Civic 1.5T.
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Default 12-02-2020, 01:52 PM

Subscribing to this thread.

I have a 2018 Mazda 6 with the 2.5t and am excited to see development on this engine.
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Default 12-02-2020, 02:29 PM

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!


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Default 12-02-2020, 05:35 PM

Quote:
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!
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Default 12-07-2020, 12:49 PM

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.


Burger Motorsports
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Thumbs up 12-07-2020, 01:17 PM

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Default 12-08-2020, 04:07 AM

Quote:
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.
👍🏻
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Default 12-18-2020, 12:58 PM

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.


Burger Motorsports
Home of the JB4 the worlds most popular turbocharged tuning system!

It is the sole responsibility of the purchaser and installer of any BMS part to employ the correct installation techniques required to ensure the proper operation of BMS parts, and BMS disclaims any and all liability for any part failure due to improper installation or use. It is the sole responsibility of the customer to verify that the use of their vehicle and items purchased comply with federal, state and local regulations. BMS claims no legal federal, state or local certification concerning pollution controlled motor vehicles or mandated emissions requirements. BMS products labeled for use only in competition racing vehicles may only be used on competition racing vehicles operated exclusively on a closed course in conjunction with a sanctioned racing event, in accordance with all federal and state laws, and may never be operated on public roads/highways. Please click here for more information on legal requirements related to use of BMS parts.
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Default 12-19-2020, 06:03 PM

Quote:
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!
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Default 12-22-2020, 11:37 AM

Quote:
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!


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Default 12-24-2020, 07:22 PM

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.
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Default 12-24-2020, 10:41 PM

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.


Burger Motorsports
Home of the JB4 the worlds most popular turbocharged tuning system!

It is the sole responsibility of the purchaser and installer of any BMS part to employ the correct installation techniques required to ensure the proper operation of BMS parts, and BMS disclaims any and all liability for any part failure due to improper installation or use. It is the sole responsibility of the customer to verify that the use of their vehicle and items purchased comply with federal, state and local regulations. BMS claims no legal federal, state or local certification concerning pollution controlled motor vehicles or mandated emissions requirements. BMS products labeled for use only in competition racing vehicles may only be used on competition racing vehicles operated exclusively on a closed course in conjunction with a sanctioned racing event, in accordance with all federal and state laws, and may never be operated on public roads/highways. Please click here for more information on legal requirements related to use of BMS parts.
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Default 01-12-2021, 10:23 AM

Any updates Terry??
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Default 01-13-2021, 08:45 PM

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


Burger Motorsports
Home of the JB4 the worlds most popular turbocharged tuning system!

It is the sole responsibility of the purchaser and installer of any BMS part to employ the correct installation techniques required to ensure the proper operation of BMS parts, and BMS disclaims any and all liability for any part failure due to improper installation or use. It is the sole responsibility of the customer to verify that the use of their vehicle and items purchased comply with federal, state and local regulations. BMS claims no legal federal, state or local certification concerning pollution controlled motor vehicles or mandated emissions requirements. BMS products labeled for use only in competition racing vehicles may only be used on competition racing vehicles operated exclusively on a closed course in conjunction with a sanctioned racing event, in accordance with all federal and state laws, and may never be operated on public roads/highways. Please click here for more information on legal requirements related to use of BMS parts.
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Default 01-14-2021, 03:24 AM

3+ weeks to get an O2 sensor...that’s not good...to think the dealer would have them in stock
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Default 01-15-2021, 02:08 PM

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


Burger Motorsports
Home of the JB4 the worlds most popular turbocharged tuning system!

It is the sole responsibility of the purchaser and installer of any BMS part to employ the correct installation techniques required to ensure the proper operation of BMS parts, and BMS disclaims any and all liability for any part failure due to improper installation or use. It is the sole responsibility of the customer to verify that the use of their vehicle and items purchased comply with federal, state and local regulations. BMS claims no legal federal, state or local certification concerning pollution controlled motor vehicles or mandated emissions requirements. BMS products labeled for use only in competition racing vehicles may only be used on competition racing vehicles operated exclusively on a closed course in conjunction with a sanctioned racing event, in accordance with all federal and state laws, and may never be operated on public roads/highways. Please click here for more information on legal requirements related to use of BMS parts.
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Default 01-15-2021, 03:47 PM

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}


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Default 01-15-2021, 03:55 PM

Tried it, doesn't work.


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Default 01-17-2021, 01:06 PM

Just registered to show my support - very much looking forward to an option for the 2.5T!
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Default 01-18-2021, 11:01 AM

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


Burger Motorsports
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It is the sole responsibility of the purchaser and installer of any BMS part to employ the correct installation techniques required to ensure the proper operation of BMS parts, and BMS disclaims any and all liability for any part failure due to improper installation or use. It is the sole responsibility of the customer to verify that the use of their vehicle and items purchased comply with federal, state and local regulations. BMS claims no legal federal, state or local certification concerning pollution controlled motor vehicles or mandated emissions requirements. BMS products labeled for use only in competition racing vehicles may only be used on competition racing vehicles operated exclusively on a closed course in conjunction with a sanctioned racing event, in accordance with all federal and state laws, and may never be operated on public roads/highways. Please click here for more information on legal requirements related to use of BMS parts.
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Default 01-18-2021, 11:56 AM

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!!
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Default 01-18-2021, 03:21 PM

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.


Burger Motorsports
Home of the JB4 the worlds most popular turbocharged tuning system!

It is the sole responsibility of the purchaser and installer of any BMS part to employ the correct installation techniques required to ensure the proper operation of BMS parts, and BMS disclaims any and all liability for any part failure due to improper installation or use. It is the sole responsibility of the customer to verify that the use of their vehicle and items purchased comply with federal, state and local regulations. BMS claims no legal federal, state or local certification concerning pollution controlled motor vehicles or mandated emissions requirements. BMS products labeled for use only in competition racing vehicles may only be used on competition racing vehicles operated exclusively on a closed course in conjunction with a sanctioned racing event, in accordance with all federal and state laws, and may never be operated on public roads/highways. Please click here for more information on legal requirements related to use of BMS parts.
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