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Alpha_Sting1 Alpha_Sting1 is offline
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Default JB4 Power pulses / surges above 30% throttle. Dynojet logs - 06-10-2019, 11:10 PM

Under throttle above 30% I am getting power pulses which feels like fuel cutoff
but can actually here it through intakes as well. This happens on map 1 2 and 3. Not always the same surges run to run. However I did notice disabled / map 0 a few times but not so strong. This was not the case before JB4 install. I'm sending 10 logs from the Dynojet performed yesterday 06/10/19. 3 pulls each on map 1 2 and 3...one pull on map 0, have 2 other's from 0 I could add if needed.

3.3 JB4 / K&N Typhoon / Muffler delete / Denso iridiums @ .022 / Shell 93 octane
Attached Files
File Type: csv 0_2019-06-10 10_52_02_Map-0.csv (5.5 KB, 111 views)
File Type: csv 4_2019-06-10 10_55_17_Map-1.csv (5.3 KB, 125 views)
File Type: csv 5_2019-06-10 10_55_48_Map-1.csv (5.1 KB, 119 views)
File Type: csv 3_2019-06-10 10_54_51_Map-1.csv (5.8 KB, 115 views)
File Type: csv 8_2019-06-10 11_12_43_Map-2.csv (5.9 KB, 114 views)
File Type: csv 6_2019-06-10 11_11_39_Map-2.csv (5.8 KB, 112 views)
File Type: csv 7_2019-06-10 11_12_10_Map-2.csv (5.7 KB, 118 views)
File Type: csv 10_2019-06-10 11_18_19_Map-3.csv (4.9 KB, 110 views)
File Type: csv 11_2019-06-10 11_18_49_Map-3 dyno.csv (6.0 KB, 118 views)
File Type: csv 9_2019-06-10 11_17_50_Map-3.csv (5.7 KB, 119 views)

Last edited by Alpha_Sting1; 06-10-2019 at 11:20 PM.. Reason: Additional
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Default 06-11-2019, 08:06 AM

Load up v10 firmware, set options bit7 on, and let me know if that helps..

Quick glance over the dyno logs and those seem fine for 93 octane, doing runs in 5th gear? Did map2 or map3 perform better?


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Alpha_Sting1 Alpha_Sting1 is offline
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Default 06-11-2019, 09:53 AM

Ok, I'm seeing V10 10-1 10-2 which should I upload? Thanks!
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Default 06-11-2019, 10:27 AM

There is only one v10 hex file download.

Looks like you have already downloaded v10 previously.

As the 10-1 and 10-2 is just a differentiator for the same file.
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Alpha_Sting1 Alpha_Sting1 is offline
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Default 06-11-2019, 12:55 PM

Yea I thought we downloaded the latest 2 weeks ago but couldn't recall the V.
Where can I locate the V I'm running? I searched all through app settings / info and no dice. Bit7 option as well. Maybe I'm blinder than I thought and just missing 👀
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Default 06-11-2019, 02:53 PM

Same file that you downloaded more than once.

If your app is older the setting is called "Future Use D". Click options and set bit7 on. And save bits, save settings.


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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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Alpha_Sting1 Alpha_Sting1 is offline
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Default 06-11-2019, 07:32 PM

Gotcha. I ended finding the Future D although I'm updated in Play store. If there's a newer Vrs app then must be on that other platform. Updated to 10.2 so hopefully I return here with good results 🤞
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Default 06-13-2019, 11:54 AM

Post a log of the issue if it continues as well so we can continue to hone in 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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Alpha_Sting1 Alpha_Sting1 is offline
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Default 06-13-2019, 03:19 PM

Quote:
Originally Posted by Terry @ BMS
Post a log of the issue if it continues as well so we can continue to hone in on it!
Here are some more logs Terry, after update on Bit7 and with and without E30.
After the update the surge was much less prevalent but still there a tad.
Hope these help and we can trouble shoot and work out.
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Default 06-15-2019, 09:02 AM

Looks much better to me. Let's give v10 awhile to see how other cars respond, etc, and then we'll look in to making the same effect a little stronger if wider feedback on the setting is similar to yours.


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 06-17-2019, 09:25 AM

Off on surge on map 2 was really bad Saturday evening, worse it's been. map 1 surge is there but not half as bad. So the 10.2 update has solved nothing from what I'm feeling and hearing from the car
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Default 06-17-2019, 09:30 AM

Let's see the log of "worse it's ever been".


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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 06-17-2019, 09:49 AM

Can't recall exactly which log now as forgot to label as going along but it'll be one of these.
Attached Files
File Type: csv 0_2019-06-15 16_06_20_Map-2.csv (2.6 KB, 142 views)
File Type: csv 2_2019-06-15 16_19_53_Map-2.csv (2.5 KB, 110 views)
File Type: csv 1_2019-06-15 16_16_12_Map-2.csv (6.8 KB, 109 views)
File Type: csv 3_2019-06-15 16_20_28_Map-2.csv (2.8 KB, 109 views)
File Type: csv 4_2019-06-15 16_22_01_Map-2.csv (57.4 KB, 113 views)
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Default 06-17-2019, 10:18 AM

Don't see any obvious issues. When you have time you can open each log in the app or windows interface to identify what is what. And lets focus on 1 log that has the issue with a specific time stamp so we can see technically what you're feeling behind the wheel.


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 08-08-2019, 08:09 AM

Quote:
Originally Posted by Terry @ BMS
Don't see any obvious issues. When you have time you can open each log in the app or windows interface to identify what is what. And lets focus on 1 log that has the issue with a specific time stamp so we can see technically what you're feeling behind the wheel.
Hey Terry@bms here's a csv log from map3 93 Oct with the surge between 3k-4k. on the graph in the app I can see the boost pulse. Let me know what you think.
Attached Files
File Type: csv 2019-08-07 19_44_25_Map-3.csv (9.1 KB, 93 views)
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Default 08-08-2019, 09:48 AM

Quote:
Originally Posted by CK-19-GT2
Hey Terry@bms here's a csv log from map3 93 Oct with the surge between 3k-4k. on the graph in the app I can see the boost pulse. Let me know what you think.
Looks like wastegate oscillation. More common with bolt on modifications. Not something we can do anything for currently, so ignore, or tune around it, if it bothers you.
Attached Images
 


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 08-08-2019, 11:18 AM

Quote:
Originally Posted by Terry @ BMS
Looks like wastegate oscillation. More common with bolt on modifications. Not something we can do anything for currently, so ignore, or tune around it, if it bothers you.
I've read another forum where you said the wastegate oscillation will work itself out. Is this still the situation? Last I read you say it will work itself out was in May of this year. Should I do more full throttle runs on my car to work in the wastegate? I only have 8.3k miles on my car and I never really thrash it hard unless it's an all-out race but I love my mid-range pulls teasing 3k-4k RPM torque and boost. If not, can you point me in the direction of a workaround/tunearound. Tomorrow's my day off and I'm gonna run some c9 or ms103 race gas (still deciding lol) and map 5 or 7 maybe it will help Work in the waste gate with more boost? Lemme know what you think. Any feedback from others who experienced this is great as well. Thanks.
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Default 08-08-2019, 01:07 PM

Most of the time it just learns itself out and resolves itself. The higher the boost profile you are running the more prevalent wastegate oscillation will be.

Never run leaded racing fuel.


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 08-08-2019, 02:10 PM

Quote:
Originally Posted by Terry @ BMS
Most of the time it just learns itself out and resolves itself. The higher the boost profile you are running the more prevalent wastegate oscillation will be.

Never run leaded racing fuel.
Oh no not leaded, unleaded VP race gas. I have a VP gas station up the street from me. I just roll up and I can get raw 93, 96, or 103 unleaded straight from the pump. Oh yeah!! 😋🤫
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Default 08-08-2019, 02:58 PM

How much $ is the 103?


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Default 08-08-2019, 03:13 PM

Quote:
Originally Posted by Beefer
How much $ is the 103?
I live in South Florida, at the pump it's $11 per gallon ms103=103 $8 for c9=96 $5 for 93. All ethanol free unleaded.
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Default 08-08-2019, 05:37 PM

Quote:
Originally Posted by CK-19-GT2
Oh no not leaded, unleaded VP race gas. I have a VP gas station up the street from me. I just roll up and I can get raw 93, 96, or 103 unleaded straight from the pump. Oh yeah!! 😋🤫
Sounds good! I run MS109 when I want really good fuel.


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 08-08-2019, 06:54 PM

Quote:
Originally Posted by Terry @ BMS
Sounds good! I run MS109 when I want really good fuel.
Last post on the issue. I think the oscillation problem comes from us rolling on to the pedal rather than floor it. This is what causes the wastegate oscillation. heres 2 logs first is 4th gear second is 3rd. you can see it's smoother only one hiccup. Tell me what you think one last time Terry @ bms. Thanks
Attached Files
File Type: csv 2019-08-08 21_25_36_Map-3.csv (6.2 KB, 125 views)
File Type: csv 2019-08-08 21_15_00_Map-3.csv (12.3 KB, 85 views)
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Default 08-09-2019, 07:15 AM

Not meant to threadjack, but with a newly installed JB4 on Map 2, 93 octane with fuel wires, I'm experiencing the same. I'm guessing same as above, with waste gate oscillation and will learn itself out?

It did not occur as much on map 1, but with lower IATs on map 2 it's pretty prominent.

The logs attached show some of the surging. The full run log looks good to me, but I did feel it around 3k up to about 4500 rpm. The partial log is a smaller log, which the surging occured even more.

EDIT: Only mods are K&N drop-ins, BMS Densos at .022, JB4 with OBD and O2 connections.
Attached Files
File Type: csv Full_Run_Map-2.csv (6.4 KB, 86 views)
File Type: csv partial_run_surging_Map-2.csv (15.2 KB, 94 views)

Last edited by Cooshman; 08-09-2019 at 07:27 AM..
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Default 08-09-2019, 09:54 AM

Quote:
Originally Posted by Cooshman
Not meant to threadjack, but with a newly installed JB4 on Map 2, 93 octane with fuel wires, I'm experiencing the same. I'm guessing same as above, with waste gate oscillation and will learn itself out?

It did not occur as much on map 1, but with lower IATs on map 2 it's pretty prominent.

The logs attached show some of the surging. The full run log looks good to me, but I did feel it around 3k up to about 4500 rpm. The partial log is a smaller log, which the surging occured even more.

EDIT: Only mods are K&N drop-ins, BMS Densos at .022, JB4 with OBD and O2 connections.
I installed mine last Friday. I noticed that it's how I roll on to the throttle instead of mash on it. take a run from 2500rpm 3rd or 4th and when you hit it mash it all the way one shot but try not to hit the kickdown button till after 4k RPM. You may feel 1 maybe 1 1/2 surges but it's not as bad, then it's smooths out quick. Also try comfort mode if you like to roll into the throttle. Sports mode pedal response for throttle is at 98% with like 35%-45% pedal, so the wastegate oscillates faster and more. I'm still playing with it to figure out what's best or isolate the problem better so Terry@bms has a better chance to solve it.
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