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Default 05-17-2019, 11:46 AM

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Originally Posted by Payam @ BMS
Ahh, okay I just wasn't sure exactly on the first post. Great job man!
Thanks !


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Ctjallen Ctjallen is offline
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Default 05-17-2019, 01:49 PM

I found 100 octane close to where I live, anybody run their RS3 on 100 yet?
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Default 05-18-2019, 05:43 PM

Quote:
Originally Posted by Ctjallen
I found 100 octane close to where I live, anybody run their RS3 on 100 yet?
I ran around 100 and map 5 was good. When in doubt shoot over logs though.


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Ctjallen Ctjallen is offline
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Default 100 octane - 05-18-2019, 07:02 PM

How long did it take the ECU to adjust to the higher octane?
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Default 05-20-2019, 06:25 AM

Quote:
Originally Posted by Ctjallen
How long did it take the ECU to adjust to the higher octane?
One or two full throttle pulls and you good.


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Hckymstr19 Hckymstr19 is offline
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Default 05-20-2019, 07:01 AM

Hey george did I read somewhere that you are currently working on being able to tap into the second set of injectors with the jb4?
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Default 05-20-2019, 07:26 AM

Quote:
Originally Posted by Hckymstr19
Hey george did I read somewhere that you are currently working on being able to tap into the second set of injectors with the jb4?
At this point we are working on the low pressure side to add more fuel. We havent done work on secondary yet or at the moment seen a need since it seems supply from the back is the primary challenge.


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Myrder Myrder is offline
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Default 05-22-2019, 08:33 AM

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Originally Posted by George @ BMS
At this point we are working on the low pressure side to add more fuel. We havent done work on secondary yet or at the moment seen a need since it seems supply from the back is the primary challenge.
Thats interesting, it seems all the flashes utilize the port injection to get full e85 available while running the stock LPFP


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Default 05-22-2019, 09:07 AM

Quote:
Originally Posted by Myrder
Thats interesting, it seems all the flashes utilize the port injection to get full e85 available while running the stock LPFP
Yes once you flash you have a little more headroom on the fuel trims side. But run in to limitations on the fuel pump and fuel injectors shortly after. For those who want to run straight E85 you're going to have to bite the bullet and flash the car. And once you do can still use the JB4 on top of that for fine tuning, boost by gear, logging to your smart phone, etc, etc.


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Default 05-27-2019, 12:09 PM

Hey Terry,

You going to develop intake or any bolt on for the rs3/ttrs platform? They can use a dsg breather and maybe a catch can too. Just seems kinda stagnant compared to your other platforms.


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Default 05-27-2019, 01:42 PM

Quote:
Originally Posted by Myrder
Hey Terry,

You going to develop intake or any bolt on for the rs3/ttrs platform? They can use a dsg breather and maybe a catch can too. Just seems kinda stagnant compared to your other platforms.
Not much of a market for the RS platform based on how many cars are produced and the fact that there's already multiple offerings out there. There's a lot more R&D for making hard parts. I could see breathers or catch cans, though. Give it time.


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Default 05-27-2019, 02:29 PM

I suppose that has some merit. Under 3000 rs3 from 2017-2019 and ttrs even less. Though there are some low hanging fruit there for parts for sure.


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Default 05-27-2019, 02:53 PM

Quote:
Originally Posted by Myrder
Hey Terry,

You going to develop intake or any bolt on for the rs3/ttrs platform? They can use a dsg breather and maybe a catch can too. Just seems kinda stagnant compared to your other platforms.
Testing a DSG breather/catch can system now. Trying to get the right design to keep it simple to install/remove and still effective. Will share details when ready.

As to the intake would be cheap/easy to do but I think that market is already well saturated? What is the cheapest intake out?

We will have an IC option using the same core we're developing for the B9 S4 and Kia Stinger.


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tegxsi tegxsi is offline
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Default 05-27-2019, 06:47 PM

Most intakes are ridiculously expensive because they are made with carbon fiber.
I think CTS makes the cheapest intake.
I'm running a Forge motorsport 3.5" inlet hard pipe with K&N panel filter. It works for me...keeps things quiet.

Keep in mind the the 2019 models have changes on the DV hose.


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Myrder Myrder is offline
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Default 05-27-2019, 10:24 PM

Plus one on the 2019s. Also yea intakes are like... $400 cheapest...


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Luqmaanmall@gmail.com Luqmaanmall@gmail.com is offline
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Default 2018 RS3 - 06-11-2019, 09:55 AM

Hi
Has Anyone experienced a knocking sound/inconsistent idle after driving their RS3 a bit hard. I experienced this on MAP1, oil temp was around 104°C. Once I put it into MAP0 and temps lowered, it seems to have disappeared. Also, randomly under acceleration, the car seems to lose boost completely in 3rd gear. My car only has a BMC filter and runs on 93 unleaded. The JB4 read 2 codes (P0804 and P01302), not sure what these are. Any help would be greatly appreciated!

Thanks!
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Default 06-11-2019, 10:35 AM

The JB4 monitors knock in all cylinders, post up a log so we can check it out! On the faults if you clear all codes ign on, engine off (sometimes takes a couple times to clear), when do they come back?


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Matthias Matthias is offline
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Default Boost lags,..?! - 06-14-2019, 10:05 AM

Name:  ov_img_8143(1).png
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2019-06-13noboosst 16_00_06_Map-6.csv

Hi all,

same problems here with the boost sometimes, which user"theskunk" reports.

Pull the Pedal , no Boost. Then get off an pull again, geos off like hell.

Only Pipercross plate filter and PPH Air Pipe 90.

Runs with 102 Oktan. JB4 with BCM and v4 Firmware.

Happened in all Maps. Exampel in Map 6 + 6 psi

Results enclosed.

Is there any new Firmware in progress ?

Greetings

Last edited by Matthias; 06-14-2019 at 10:14 AM..
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Default 06-14-2019, 10:44 AM

Quote:
Originally Posted by Matthias
Attachment 87426
Attachment 87425

Hi all,

same problems here with the boost sometimes, which user"theskunk" reports.

Pull the Pedal , no Boost. Then get off an pull again, geos off like hell.

Only Pipercross plate filter and PPH Air Pipe 90.

Runs with 102 Oktan. JB4 with BCM and v4 Firmware.

Happened in all Maps. Exampel in Map 6 + 6 psi

Results enclosed.

Is there any new Firmware in progress ?

Greetings
We working on resolving it. Our car rarely does it which makes it a bit harder to pin point but its on our priority list.


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Default 06-19-2019, 08:11 AM

Quote:
Originally Posted by George @ BMS
We working on resolving it. Our car rarely does it which makes it a bit harder to pin point but its on our priority list.
I've had this (UK) a few times now, upon pressing the pedal it feels like nothing is happening, usually 3rd gear, then it eventually goes.....


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Luqmaanmall@gmail.com Luqmaanmall@gmail.com is offline
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Default 06-19-2019, 10:46 AM

Quote:
Originally Posted by t-800
I've had this (UK) a few times now, upon pressing the pedal it feels like nothing is happening, usually 3rd gear, then it eventually goes.....
I haven’t been able to recreate the issue, it seems that shifting a bit early into 3rd causes the loss in boost. Been running Map4 on 102 octane (BMC filter is the only hardware) and haven’t experienced the same issue, only happened in map 1/2 on 93 octane.
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tegxsi tegxsi is offline
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Default 06-19-2019, 05:18 PM

There are times when the ECU limits throttle to ~65%. Other times the car will start to build boost then the ECU suddenly cuts throttle to ~30%.

Usually if you let up then go WOT again and it's fine. Occasionally the car won't go no matter how many times I try letting up.


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Default 06-21-2019, 08:25 PM

I was having it about once a lap on an open track day at VIR on Monday. Ultimately, I decided to disconnect the JB4 until an update comes along to resolve this. If additional logs are useful, I’m happy to reconnect.


Daily Driver: 2018 RS3, Black Optics, Dynamic+, Driver Assist, STM resonator delete, STM intercooler, CTS Turbo Intake, EMD Springs/Swaybars, Girodisc Rotors, Carbotech pads, 034 goodies everywhere.
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Glfdriver18 Glfdriver18 is offline
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Default 06-24-2019, 08:25 AM

Just traded my 18 R for a 2019 RS3, can’t wait to get a JB4 on it. However, this intermittent loss of boost issue is making me wary. I just want something that works, every time. Probably stay stock until they manage to figure it out.
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Default 06-24-2019, 09:16 AM

Given the intermittent nature and the fact that the issue comes up on the RS3/TTRS but not the B9 S4 that uses the same hardware, it's been really tricky to pin down. We're testing a circuit board change right now to see if that has any effect on it.


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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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