JB4 for Mazda 2.5L Turbo - Page 34 - JB4tech.com

Terry @ BMS · 01-19-2022, 08:39 AM

From from a Mazda3 customer helping with a little WMI testing.

Finally got a V1 MAF sensor and harness in stock to work with also. Once we get the V1 MAF control up and running then we'll turn our attention back to stronger Mazda3 maps. Our intake has been "almost ready" for over a month now, lol. Manufacturing is so slow these days. Soon though!

Slow3 · 01-19-2022, 12:57 PM

Havok · 01-19-2022, 01:00 PM

@terry any sight of updated wire harness for the mazda 3 yet?

9520G · 01-19-2022, 07:07 PM

Quote:

Originally Posted by Terry @ BMS

From from a Mazda3 customer helping with a little WMI testing.

Finally got a V1 MAF sensor and harness in stock to work with also. Once we get the V1 MAF control up and running then we'll turn our attention back to stronger Mazda3 maps. Our intake has been "almost ready" for over a month now, lol. Manufacturing is so slow these days. Soon though!

Very excited with this, I wonder if the 2.5 will love WMI like the B58. Thanks for.putting in the work.

tymwalk · 01-20-2022, 04:35 AM

Quote:

Originally Posted by Terry @ BMS

From from a Mazda3 customer helping with a little WMI testing!

Glad to see someone else playing with the meth. Any specific goals in mind? Are they spraying in-between the intercooler and throttle body for the Mazda 3?

JNance · 01-23-2022, 07:57 AM

Terry, thank you for the update on the V1; Can’t wait to to see the results. Also, eagerly waiting on your intake, even though I know you’re focusing on the 3; I’m tempted to go ahead and get a CS or AEM (AEM looks much cleaner than fully exposed element).

burkhacs · 01-23-2022, 02:00 PM

Just ordered the data cable, where are the map files for the cx30 located?

Terry @ BMS · 01-23-2022, 09:38 PM

First post has a link for those not using the app.

burkhacs · 01-23-2022, 09:41 PM

Quote:

Originally Posted by Terry @ BMS

First post has a link for those not using the app.

Thank you, guess I missed the potentially most obvious place

Terry @ BMS · 01-25-2022, 04:20 PM

For those V1 folks waiting for us to add JB4 MAF control, we're getting closer! The logic is programmed in to the JB4 for it and we think we found a connector source. Should have samples next week with luck.

JNance · 01-25-2022, 04:24 PM

Terry, dibs on first run of V1 MAF test units.

cuzed2 · 01-25-2022, 04:30 PM

Quote:

Originally Posted by Terry @ BMS

For those V1 folks waiting for us to add JB4 MAF control, we're getting closer! The logic is programmed in to the JB4 for it and we think we found a connector source. Should have samples next week with luck.

I assume the above does NOT apply to the M3 turbo? Perhaps for the other models.

Terry @ BMS · 01-25-2022, 05:03 PM

Quote:

Originally Posted by cuzed2

I assume the above does NOT apply to the M3 turbo? Perhaps for the other models.

Mazda3 uses the V2 JB4 system, so the V1 changes are not relevant to it.

macdonald2001 · 01-25-2022, 05:10 PM

Quote:

Originally Posted by Terry @ BMS

For those V1 folks waiting for us to add JB4 MAF control, we're getting closer! The logic is programmed in to the JB4 for it and we think we found a connector source. Should have samples next week with luck.

Hi Terry,

Great News,I have a Mazda6 2018 T,so I hope it wont be too long before I receive the new harness with MAF support ,keep up the good work Terry.

Leadf00t · **Great News -** 01-25-2022, 06:36 PM

Thank you for the hard work Terry !!!

SixPackABS · 01-26-2022, 12:56 PM

JB4 paired with the Catback brings endless smiles.

9520G · 01-26-2022, 06:18 PM

Quote:

Originally Posted by SixPackABS

JB4 paired with the Catback brings endless smiles.

Which exhaust are you running?

Loscx5 · 01-26-2022, 07:39 PM

Quote:

Originally Posted by SixPackABS

JB4 paired with the Catback brings endless smiles.

I’ll bet it does.

Terry @ BMS · 01-27-2022, 08:11 PM

Was able to get a 2019 CX9 in the office today to test out the new JB4 V1 Application MAF control. Worked like a charm! Testing was done on 91 octane fuel. I used "rigged" connectors for this dyno testing but we're hoping to have the real connectors here in a few weeks and then will start mailing those out to V1 Application customers. CX, Mazda6, etc.

Loscx5 · 01-27-2022, 08:23 PM

Yeah, for me 250 and 340 are what I was looking for.
Terry, you have a sale.
Congrats on the effort.
Can you tell me what the axes are in the second graph?
Thanks

Leadf00t · **Yeah !! -** 01-28-2022, 06:52 AM

Come on real connectors !!

sm1ke · 01-28-2022, 08:38 AM

+48 hp and +68tq is awesome. And on 91 too! Nice work Terry

Terry @ BMS · 01-28-2022, 08:50 AM

Quote:

Originally Posted by Loscx5

Yeah, for me 250 and 340 are what I was looking for.
Terry, you have a sale.
Congrats on the effort.
Can you tell me what the axes are in the second graph?
Thanks

The JB4 log? Units and time. The units vary by the trace.

tymwalk · 01-28-2022, 08:53 AM

Quote:

Originally Posted by Terry @ BMS

The JB4 log? Units and time. The units vary by the trace.

Great work! I see the knock detection creeping up at the +5psi but nothing serious. At +5psi, other than octane, what is the next barrier? Is it fuel trim or fuel cut?

Thank you for all the hard work.

Terry @ BMS · 01-28-2022, 09:19 AM

Quote:

Originally Posted by tymwalk

Great work! I see the knock detection creeping up at the +5psi but nothing serious. At +5psi, other than octane, what is the next barrier? Is it fuel trim or fuel cut?

Thank you for all the hard work.

There are a few factors at play. I'll want to collect a wider range of data before I definitely determine what the limiting factor is. But I think we're getting close to where the turbo maxes out as higher boost runs didn't yield more power. Maybe an intake would extend that range?