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335imofo 335imofo is offline
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Default 04-01-2020, 11:31 AM

Quote:
Originally Posted by Payam @ BMS
When is it acting weird exactly?

Can you get a log of that?

The log I see here looks great from what I see. Everything is where it should be and you're making 4 psi more than stock, so it should be faster as well.
It felt sluggish and rough. The boost gauge is glitchy as well.
I removed it and everything smoothed out
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(#177)
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Default 04-09-2020, 04:29 PM

Quote:
Originally Posted by 335imofo
It felt sluggish and rough. The boost gauge is glitchy as well.
I removed it and everything smoothed out
Boost as being read via the JB4 log looks smooth and as expected. I presume you mean the factory boost gauge? That is always going to reflect factory like boost levels, but if it's wobbling around lets see a video of that. Genrally JB4 box placement is the only variable at work here. If it gets too much EMF could cause weird behavior. Also note whether you have the issue on map0 with the JB4 disabled to determine if it's software or hardware related.
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(#178)
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jungo jungo is offline
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Default 09-27-2020, 03:36 PM

Quote:
Originally Posted by Terry @ BMS
Had a customer connect the JB4 connections in the wrong spot limiting boost. Be sure rainbow patch is on the MAP sensor as shown!
Hello there
I just wonder how can I install the connector of map sensor. there is conflict between the installation guide and this post of the forum which shows the wrong and correct installation method of map sensor on manifold ? could you illustrate which one is correct?
many thanks.
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(#179)
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jungo jungo is offline
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Default 09-30-2020, 04:24 PM

Quote:
Originally Posted by jungo
Hello there
I just wonder how can I install the connector of map sensor. there is conflict between the installation guide and this post of the forum which shows the wrong and correct installation method of map sensor on manifold ? could you illustrate which one is correct?
many thanks.
Can any one help me ?
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(#180)
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Default 09-30-2020, 05:44 PM

They are interchangable on this platform.


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(#181)
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Default 01-11-2022, 08:59 AM

Just added firmware with cyl 2-6 and gear logging. Could use a few logs on it to confirm it's working as expected across all models.


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Default Firmware 718/7//7 log - 02-14-2022, 08:53 PM

Hi Terry,
Quick log of firmware 718/7/77

Gears are working. IGN 2-IGN 4 not
Attached Files
File Type: csv P718_M7_R1_220213_1224.csv (53.6 KB, 114 views)
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(#183)
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Default 02-15-2022, 10:42 AM

I see movement on cyl2! Try some longer full throttle runs.


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Default 02-18-2022, 03:52 PM

Hi, Two full runs 2nd gear attached.
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File Type: csv P718_M7_R1_220218_1000.csv (29.7 KB, 113 views)
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Default 02-18-2022, 04:30 PM

Quote:
Originally Posted by Dleong01
Hi, Two full runs 2nd gear attached.
Looks good to me!
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(#186)
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Dleong01 Dleong01 is offline
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Default 02-18-2022, 06:33 PM

Hi Terry, Are Ign 2, Ign 3 and Ign 4 working in this latest firmware revision?
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Default 02-18-2022, 11:13 PM

Quote:
Originally Posted by Dleong01
Hi Terry, Are Ign 2, Ign 3 and Ign 4 working in this latest firmware revision?
From the log that you posted it is. It's counting knock instead of raw value like cylinder 1.


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(#188)
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Default 02-19-2022, 10:15 PM

So Ign1 is raw value (actual ignition timing) and Ign 2, Ign3, Ign4 are measuring knock count. Is my understanding correct?

How much knock count is acceptable before i should be concerned?
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Default 02-20-2022, 10:09 AM

2-4 are timing corrections. There will always be some corrections due to the nature of the dynamic timing advance system. If you see corrections going up during longer runs consistently then that usually means you want to increase your octane level or reduce your boost target.


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(#190)
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Default 04-22-2022, 01:12 AM

Hi JB4,
I am running JB4 WMI (MAP 7 - 100% additive) with a high flow turbo on my 718 Cayman S. I am only seeing 20.7psi max (track day log attached - V6 software version). Is this normal?
I would like to see if i can run 22psi. Is this possible? If so, what is the best way to achieve this with JB4?
I have heard that there is an ECU limitation of 1.6Bar (governed by Torque Demand).

Thanks
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(#191)
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Default 04-22-2022, 09:40 AM

Quote:
Originally Posted by Dleong01
Hi JB4,
I am running JB4 WMI (MAP 7 - 100% additive) with a high flow turbo on my 718 Cayman S. I am only seeing 20.7psi max (track day log attached - V6 software version). Is this normal?
I would like to see if i can run 22psi. Is this possible? If so, what is the best way to achieve this with JB4?
I have heard that there is an ECU limitation of 1.6Bar (governed by Torque Demand).

Thanks
Drop me an email terry@burgertuning.com and we can see about enabling IAT spoofing for you to see if we can further increase boost that way.


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(#192)
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wynxo wynxo is offline
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Default 07-08-2022, 07:56 AM

Hello,

I've installed my JB4 on my Porsche 718 GTS.
The power gain is really great.

I'm leaving in Europe and the fuel that I put in my Boxster is SP98 (98% octane) With this SP98 fuel, what is the maximum MAP that I can put?

Map0 - JB4 disabled
Map1 - 2psi peak 91 octane
Map2 - 3psi peak 91/93 octane
Map3 - 4psi peak 93 octane, race gas, or ethanol blend
Map4 - 6psi peak ethanol blend or race gas
Map5 - 8psi peak ethanol blend, race gas, CPI required


At the firmware level, I am currently in 718 6 HEX
Do you recommend to put the Beta version 718 7 HEX?

Thank you very much

Last edited by wynxo; 07-08-2022 at 07:59 AM.. Reason: .
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Default 07-08-2022, 09:00 AM

Go for map 3 and post a log so we can evaluate. Yes, you can update to the beta firmware no problem.


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(#194)
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Default 07-10-2022, 05:49 AM

Thank you
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wynxo wynxo is offline
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Default 07-10-2022, 05:50 AM

Here you are one log file in map2
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File Type: csv P718_M2_R1_220708_2030.csv (240.8 KB, 28 views)
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wynxo wynxo is offline
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Default 07-10-2022, 05:53 AM

And the second in map3
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File Type: csv P718_M3_R1_220708_2006.csv (455.2 KB, 28 views)
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Default 07-11-2022, 10:12 AM

Looks pretty good to me, you can try map 4 and get some logs please.

Longer runs with a shifts would be good too if possible.
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Default 07-11-2022, 01:42 PM

Thank you, I'll try map 4 next day and i'll post logs here.

For longer runs the max size of files csv accepted into the forum is limited at 488KB. Then, to be able to post my log file i had to delete 2000 lines at the end of csv file
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Default 07-11-2022, 03:10 PM

Quote:
Originally Posted by wynxo
Thank you, I'll try map 4 next day and i'll post logs here.

For longer runs the max size of files csv accepted into the forum is limited at 488KB. Then, to be able to post my log file i had to delete 2000 lines at the end of csv file
Only a couple WOT pulls are fine, no need to do anything longer for me to evaluate.


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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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