Some new S55 JB4 Features - Gear Dependant Boost and All Cylinder Timing!

Mike@N54Tuning.com · 05-28-2015, 12:34 PM

Came across some info the other day and just didn't have time to post it up. BMS with the help of a flash tuner friend were able to get 6-cyl timing monitoring working on the JB4_S55. Some issue to still work out in terms of OBDII bandwidth so they are going to limit the amount of info displayed. Default will likely be cyl#5 in addition to cyl#1 as #5 tends to run the nosiest. Or they may have it always show #1 and then rotate through 2-6 with 1/5th the refresh rate each. They are evaluating that now.

In addition actual gear has been added which now allows for the gear based boost control to finally be gear based instead of speed based. This has been tested on the DCT but not on the MT yet.

Mike

saxon · 05-28-2015, 02:30 PM

this is great, gear based boost control will help with traction for sure!!

can you elaborate what the timing will help the jb4 do? doesnt it currently look at timing or no?

Mike@N54Tuning.com · 05-28-2015, 02:45 PM

Quote:

Originally Posted by saxon

this is great, gear based boost control will help with traction for sure!!

can you elaborate what the timing will help the jb4 do? doesnt it currently look at timing or no?

This is just an expansion of the JB4s ability to monitor timing on all cylinders instead of just one.

Mike

orevah · 05-28-2015, 03:58 PM

great news mike!

dmk08 · 05-28-2015, 04:05 PM

JB4 continues to lead the piggy back way! Great stuff!

ASAP · 05-28-2015, 04:59 PM

Quote:

Originally Posted by Mike@N54Tuning.com

Quote:

Originally Posted by saxon

this is great, gear based boost control will help with traction for sure!!

can you elaborate what the timing will help the jb4 do? doesnt it currently look at timing or no?

This is just an expansion of the JB4s ability to monitor timing on all cylinders instead of just one.

Mike

Very good, in the N54s cyl 5 was always the noisiest... curious how this motor compares.

Mike@N54Tuning.com · 05-28-2015, 08:08 PM

Quote:

Originally Posted by dmk08

JB4 continues to lead the piggy back way! Great stuff!

It's really not even much of a contest these days. The CANbus, boost by gear, and now the OBDII connection & in dash controls/gauges, really set it apart from anything else out there.

Mike

JNoSol · 05-28-2015, 08:12 PM

This is great news.

Mike@N54Tuning.com · 05-29-2015, 01:08 PM

Quote:

Originally Posted by ASAP

Very good, in the N54s cyl 5 was always the noisiest... curious how this motor compares.

Same here.

Mike

///M.Tonee · 05-29-2015, 03:16 PM

subscribed..thanks for the info!

Vectors2final · 05-29-2015, 08:59 PM

Awesome!

Logs will be getting more thorough, making problems easier to diag for sure.

05-28-2015, 12:34 PM	#1
Mike@N54Tuning.com Joint Chiefs of Staff 4918 Rep 115,980 Posts Drives: 2007 335i, 2015 M3 Join Date: Dec 2008 Location: N54tuning.com iTrader: (89)	Some new S55 JB4 Features - Gear Dependant Boost and All Cylinder Timing! Came across some info the other day and just didn't have time to post it up. BMS with the help of a flash tuner friend were able to get 6-cyl timing monitoring working on the JB4_S55. Some issue to still work out in terms of OBDII bandwidth so they are going to limit the amount of info displayed. Default will likely be cyl#5 in addition to cyl#1 as #5 tends to run the nosiest. Or they may have it always show #1 and then rotate through 2-6 with 1/5th the refresh rate each. They are evaluating that now. In addition actual gear has been added which now allows for the gear based boost control to finally be gear based instead of speed based. This has been tested on the DCT but not on the MT yet. Mike Attached Images
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05-28-2015, 02:30 PM	#2
saxon Captain 220 Rep 880 Posts Drives: s4 Join Date: Oct 2011 Location: pa iTrader: (3)	this is great, gear based boost control will help with traction for sure!! can you elaborate what the timing will help the jb4 do? doesnt it currently look at timing or no?
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05-28-2015, 03:58 PM	#4
orevah Second Lieutenant 60 Rep 204 Posts Drives: bmw m4 BSM Join Date: Nov 2014 Location: south florida iTrader: (1)	great news mike!
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05-28-2015, 08:12 PM	#8
JNoSol Brigadier General 1383 Rep 3,834 Posts Drives: 750 MSPORT & E90M3 Join Date: Feb 2012 Location: Kansas City iTrader: (0)	This is great news. __________________ Daily: G12 750 MSPORT Weekend Car: E90 M3
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05-29-2015, 03:16 PM	#10
///M.Tonee Captain 311 Rep 645 Posts Drives: Porsche 991.1 GT3 Join Date: Aug 2011 Location: Irvine, CA iTrader: (0)	subscribed..thanks for the info! __________________ Garage: 2015 991.1 GT3 \| 2016 AMG GTS Sold \| 2015 C7 Z06 Sold \| 2015 M4 SO/6MT Sold Instagram: M.Tonee
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05-28-2015, 04:05 PM	#5
dmk08 Gone Fishin’ 7318 Rep 12,125 Posts Drives: Walks Join Date: Jul 2012 Location: Atlanta iTrader: (19)	JB4 continues to lead the piggy back way! Great stuff!
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05-29-2015, 08:59 PM	#11
Vectors2final Brigadier General 1357 Rep 3,349 Posts Drives: 2018 F80 YMB/SS ZCP Join Date: May 2011 Location: Austin, Tx iTrader: (0)	Awesome! Logs will be getting more thorough, making problems easier to diag for sure. __________________ 2019 Ruby GT350 - Gen 5 Whipple on corn making 855RWHP. Sold: 2018 F80 Part Deux /DCT /YMB /Full SS /CF Trim /ZCP /ZEC w/Black 666M Sold: 2015 F80 /DCT /YMB /Full SS /CF Trim /ZEC /ZLP /HK /S&TVC- 18''///M
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