Unofficial Vishnu Datalog Guide

Maddawg58 · 05-05-2011, 04:59 AM

"A WAY, NOT THE WAY".....need REAL feedback and corrections.

Need....dant dant daaaaa......THE PERFECT DATA LOG!!....to represent the ideal, accepting candidates...nothing overly complicated....preferable according to the template below...

Name: Screen shot 2011-05-05 at 12.09.58 PM.png
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Name: Screen shot 2011-05-05 at 12.09.58 PM.png
Views: 277
Size: 224.1 KB

keep all criticism constructive..Thanks in advance

secretsquirrel · 05-05-2011, 07:46 AM

Too lazy to see if this is in the user maintained manual. If its not, its needs to be put there. Good work, Maddawg.

FedeM · 05-05-2011, 08:32 AM

Well done, I was thinking about make this tutorial too.
Only one thing: In a PULL I always reccomend to do 3rd into 4th, both to rev limiter... maybe only third gear is short

Maddawg58 · 05-05-2011, 11:34 AM

Quote:

Originally Posted by MuCcIo

Well done, I was thinking about make this tutorial too.
Only one thing: In a PULL I always reccomend to do 3rd into 4th, both to rev limiter... maybe only third gear is short

Good suggestion MuCcIo....I'll make the change in the guide. The intent is to do the full run and capture 3rd 3000-7000 and the gear shift/transition to 4th.

Still need some numbers for IAT and throttle. IAT, I'll just have to compare peoples logs with their set-up/run profile (RPM).

But throttle, I know we are looking for smooth line, no throttle closures at WOT/Pedal to the Floor. But being a new guy, I have yet to see a clear example of this, need logs showing the closure, what the problem was, and what they could do to remedy it. I know with traction control on your see lots of anomalies.

Syndicategt · 05-05-2011, 12:26 PM

Nice!

I been looking for a guide to set up my channels properly, I usually just copy what Shiv posts on his datalogs.

sappersix · 05-05-2011, 12:29 PM

Maddawg, muy bueno. Gracias.

onebadmofo · 05-05-2011, 12:29 PM

What's the speed at redline in 4th? Might be an issue.

Maddawg58 · 05-05-2011, 01:07 PM

Quote:

Originally Posted by onebadmofo

What's the speed at redline in 4th? Might be an issue.

Can you expand, what may be the issue?

FedeM · 05-05-2011, 01:20 PM

Quote:

Originally Posted by onebadmofo

What's the speed at redline in 4th? Might be an issue.

220kmh/135mph

sappersix · 05-05-2011, 01:21 PM

Should we be logging 'Throttle' or 'CAN DBW Throttle'?

What's the difference between the two?

FedeM · 05-05-2011, 01:23 PM

Quote:

Originally Posted by sappersix

Should we be logging 'Throttle' or 'CAN DBW Throttle'?

What's the difference between the two?

I think throttle means pedal position, CAN DBW is what ecu read (es. when dtc cut throttle).

Maddawg58 · 05-05-2011, 01:43 PM

Quote:

Originally Posted by MuCcIo

I think throttle means pedal position, CAN DBW is what ecu read (es. when dtc cut throttle).

If that is the case then the most useful info would be to compare where your foot is with what the ECU is doing....

Solution: Overlay Throttle/w CAN DBW Throttle

onebadmofo · 05-05-2011, 02:06 PM

Quote:

Originally Posted by Maddawg58

Can you expand, what may be the issue?

Living in NYC I've yet to top out my 4th gear. I usually shut down after 3rd

ren · 05-05-2011, 02:19 PM

you may want to add the keyboard shortcuts to start/stop logging. I think it is F7 and F8.

FedeM · 05-05-2011, 02:40 PM

Quote:

Originally Posted by erensf

you may want to add the keyboard shortcuts to start/stop logging. I think it is F7 and F8.

Correct. They are.

secretsquirrel · 05-05-2011, 03:01 PM

I wish that pressing f7 and f8 was more obvious. I'd love for the whole program to turn green while logging, then turn back to regular color when pressing f8. Its hard as hell to read the lil status bar when trying to drive and logging. I've posted this before. Hopefully one the Vishnu guys pops in this thread.

Jeff@TopGearSolutions · 05-05-2011, 03:07 PM

Good idea on tuturial there a lot of people asking.

Its hard to answer your questions about IAT cause it depends on ambient temps and traffic ETC.

As far as cruising IAT its not really important although usually its about 25 over ambient or 90-105 F.

IAT are not AS important in figuring out how your car is running as much as people tend to believe. (although it is a factor in understanding how your car is responding to boost).

What is important is your ignition, fuel, throttle, boost, and RPM.

IF ignition looks low (under 5 degrees) and there are timing drop outs (non linear graph) then you would want to look at IAT to determine if that may be the route of the cause.

In essence the first few things I mentioned are priority in a log, and there are some secondary logging capabilities like IAT, WGDC, ETC that help aid in troubleshooting and understanding.

Maddawg58 · 05-05-2011, 05:29 PM

Jeff.....good info, incorporated already.

05-05-2011, 04:59 AM	#1
Maddawg58 Welcome to the Thunderdome! 13 Rep 141 Posts Drives: E90 335i 6MT Join Date: May 2010 Location: Hawaii iTrader: (0)	Unofficial Vishnu Datalog Guide - Basic v1.03 "A WAY, NOT THE WAY".....need REAL feedback and corrections. Need....dant dant daaaaa......THE PERFECT DATA LOG!!....to represent the ideal, accepting candidates...nothing overly complicated....preferable according to the template below... keep all criticism constructive..Thanks in advance __________________ 2008 e90 335i, Vishnu V5, DCI, PWM METH, AMS FMIC, AR catless, BMS o2 sim, and HKS exhaust. Last edited by Maddawg58; 05-08-2011 at 03:04 PM.. Reason: v1.03 added new log values for IAT
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05-05-2011, 07:46 AM	#2
secretsquirrel Colonel 130 Rep 2,291 Posts Drives: f80 Join Date: Dec 2010 Location: Far North Dallas iTrader: (2)	Too lazy to see if this is in the user maintained manual. If its not, its needs to be put there. Good work, Maddawg.
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05-05-2011, 08:32 AM	#3
FedeM Made in Italy 31 Rep 287 Posts Drives: Former 135i Join Date: Nov 2010 Location: ZH, Switzerland iTrader: (0) Garage List 2007 BMW 135i [7.40]	Well done, I was thinking about make this tutorial too. Only one thing: In a PULL I always reccomend to do 3rd into 4th, both to rev limiter... maybe only third gear is short
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05-05-2011, 12:26 PM	#5
Syndicategt Brigadier General 155 Rep 3,730 Posts Drives: 335i Join Date: Sep 2009 Location: Nor Cal iTrader: (11)	Nice! I been looking for a guide to set up my channels properly, I usually just copy what Shiv posts on his datalogs. __________________ 2008 BMW 335i e90 - Sold - Rob Beck Turbos / PROcede V5 / Aquamist HFS-4 / AR Downpipes / AE Exhaust / ER Comp FMIC / ER CP / TiAL BOV / Custom Intake / RPI Scoops / Quaife LSD / Swift-Koni Coilovers / DSS HS / Morr VS8.2 Sig Black / Michelin PSS / P3 Boost Guage / M3 body / M3 steering wheel / Adam's Rotors / Hawk HPS / SS lines /
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05-05-2011, 12:29 PM	#6
sappersix Private First Class 29 Rep 110 Posts Drives: 2016 M4 ZCP 6MT Join Date: Dec 2009 Location: Bay Area, CA iTrader: (0) Garage List 2008 Toyota FJ Cruiser [0.00] 2016 Aprilia Tuono ... [0.00] 2016 BMW M4 [10.00]	Maddawg, muy bueno. Gracias. __________________ '16 M4 ZCP \| 6MT \| YMB \| CSAT '16 Aprilia Tuono V4 1100 RR, '08 FJ Cruiser
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05-05-2011, 12:29 PM	#7
onebadmofo Colonel 346 Rep 2,396 Posts Drives: 2008 E90 M3 Join Date: Aug 2010 Location: Central NJ iTrader: (14)	What's the speed at redline in 4th? Might be an issue.
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05-05-2011, 01:21 PM	#10
sappersix Private First Class 29 Rep 110 Posts Drives: 2016 M4 ZCP 6MT Join Date: Dec 2009 Location: Bay Area, CA iTrader: (0) Garage List 2008 Toyota FJ Cruiser [0.00] 2016 Aprilia Tuono ... [0.00] 2016 BMW M4 [10.00]	Should we be logging 'Throttle' or 'CAN DBW Throttle'? What's the difference between the two? __________________ '16 M4 ZCP \| 6MT \| YMB \| CSAT '16 Aprilia Tuono V4 1100 RR, '08 FJ Cruiser
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05-05-2011, 02:19 PM	#14
ren Captain 62 Rep 840 Posts Drives: 2024 X7 M60i Join Date: Jan 2007 Location: U.S. iTrader: (8)	you may want to add the keyboard shortcuts to start/stop logging. I think it is F7 and F8.
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05-05-2011, 03:01 PM	#16
secretsquirrel Colonel 130 Rep 2,291 Posts Drives: f80 Join Date: Dec 2010 Location: Far North Dallas iTrader: (2)	I wish that pressing f7 and f8 was more obvious. I'd love for the whole program to turn green while logging, then turn back to regular color when pressing f8. Its hard as hell to read the lil status bar when trying to drive and logging. I've posted this before. Hopefully one the Vishnu guys pops in this thread.
	Appreciate 0 Quote

05-05-2011, 03:07 PM	#17
Jeff@TopGearSolutions 3441 Rep 79,211 Posts Drives: C6 Z06, 09 335i, 10 335xi Join Date: Dec 2008 Location: www.TopGearSolutions.com iTrader: (37)	Good idea on tuturial there a lot of people asking. Its hard to answer your questions about IAT cause it depends on ambient temps and traffic ETC. As far as cruising IAT its not really important although usually its about 25 over ambient or 90-105 F. IAT are not AS important in figuring out how your car is running as much as people tend to believe. (although it is a factor in understanding how your car is responding to boost). What is important is your ignition, fuel, throttle, boost, and RPM. IF ignition looks low (under 5 degrees) and there are timing drop outs (non linear graph) then you would want to look at IAT to determine if that may be the route of the cause. In essence the first few things I mentioned are priority in a log, and there are some secondary logging capabilities like IAT, WGDC, ETC that help aid in troubleshooting and understanding.
	Appreciate 0 Quote

05-05-2011, 05:29 PM	#18
Maddawg58 Welcome to the Thunderdome! 13 Rep 141 Posts Drives: E90 335i 6MT Join Date: May 2010 Location: Hawaii iTrader: (0)	Jeff.....good info, incorporated already. __________________ 2008 e90 335i, Vishnu V5, DCI, PWM METH, AMS FMIC, AR catless, BMS o2 sim, and HKS exhaust.
	Appreciate 0 Quote