follow ft86club on our blog, twitter or facebook.
FT86CLUB
Ft86Club
Delicious Tuning
Register Garage Members List Calendar Search Today's Posts Mark Forums Read

Go Back   Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community - FT86CLUB > Technical Topics > Software Tuning

Software Tuning Discuss all software tuning topics.


User Tag List
steve99

Reply
 
Thread Tools Search this Thread
Old 06-12-2016, 06:01 PM   #29
randomthoughts
Senior Member
 
Join Date: Jul 2014
Drives: 2014 White BRZ
Location: Oshawa, Canada
Posts: 156
Thanks: 60
Thanked 38 Times in 28 Posts
Mentioned: 1 Post(s)
Tagged: 0 Thread(s)
Quote:
Originally Posted by freerunner View Post
If IAM/advance multiplier stays at 1, nothing to worry about.
I believe it was consistently in 2nd and 3rd gear pull but I'll double check.
Thanks
randomthoughts is offline   Reply With Quote
Old 06-12-2016, 07:04 PM   #30
freerunner
Senior Member
 
freerunner's Avatar
 
Join Date: Jun 2015
Drives: GT86
Location: Germany
Posts: 142
Thanks: 135
Thanked 41 Times in 34 Posts
Mentioned: 3 Post(s)
Tagged: 2 Thread(s)
If you're scared, pull up to say one degree in the rpm/load range, where your negative flkc occured.
There's nothing wrong with that.
Will probably give you some headroom if ambient temperature raises.
If you really care, try to keep flkc below -1 while intake air temperature is about 86deg/F.
Later, if ambient temperature raises and knock/bigger negative flkc occurs, pull timing in the iat/ignition compensation tsble.
Doing it that way ensures that you don't lose power later, if ambient temps go down.
If winter comes, do it the other way around for your iat compensation.
I'm on the phone right now, can't post a pic. But here, iat compensation table sits at 0 for 86deg/F and is positive for temperatures less than 86 deg and negative for temperatures above 86.
freerunner is offline   Reply With Quote
Old 06-12-2016, 08:06 PM   #31
randomthoughts
Senior Member
 
Join Date: Jul 2014
Drives: 2014 White BRZ
Location: Oshawa, Canada
Posts: 156
Thanks: 60
Thanked 38 Times in 28 Posts
Mentioned: 1 Post(s)
Tagged: 0 Thread(s)
Ok thank you. I am going to try running 94 fuel after this tank is empty and see what happens. If flkc does stay below -1 i will look at making some adjustments as u have indicated.
randomthoughts is offline   Reply With Quote
Old 06-12-2016, 08:31 PM   #32
Rezi
Member
 
Join Date: Nov 2015
Drives: GT86
Location: Europe
Posts: 69
Thanks: 17
Thanked 11 Times in 11 Posts
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
FBKC & FLKC under -1 is okay. If the IAM did not drop -> dont change anything. You could easily de-tune your car if you are going crazy with this "knock"-chasing.

I also get sometimes FLKC of -0.65 while cruising. And little FLKC of -1.3 between 6200-6700rpm under WOT. But i leave it as it is.

Log your stock tune, it runs worse! And i am not aware of an blown engine because of knock.

Have fun and drive your car. Else you are going crazy with logging everytime.
Rezi is offline   Reply With Quote
The Following User Says Thank You to Rezi For This Useful Post:
randomthoughts (06-13-2016)
Old 06-13-2016, 04:12 AM   #33
Kodename47
Senior Member
 
Kodename47's Avatar
 
Join Date: Oct 2012
Drives: UK GT86
Location: UK
Posts: 3,040
Thanks: 185
Thanked 1,629 Times in 1,112 Posts
Mentioned: 155 Post(s)
Tagged: 1 Thread(s)
Quote:
Originally Posted by Rezi View Post
I also get sometimes FLKC of -0.65 while cruising. And little FLKC of -1.3 between 6200-6700rpm under WOT.
I would try to avoid any corrections under WOT as the cylinder pressures will be at maximum and therefore is where damage will occur more. If it's consistent then I would definitely look into it.

At lower load it's not so crucial as the pressures are lower.

It's worth checking the FLKC retard value set in the map to see how much it will pull when it retards timing and adjust accordingly. Also you don't have to remove timing for the whole time that the FLKC is negative. One "knock" event will result in retard for a period of time due to the delays etc.
__________________
.: Stealth 86 :.
Abbey Motorsport/K47 Tuned Sprintex 210 Supercharger

Kodename 47 DJ:
Soundcloud / Instagram / Facebook
Kodename47 is offline   Reply With Quote
The Following User Says Thank You to Kodename47 For This Useful Post:
randomthoughts (06-13-2016)
Old 06-13-2016, 01:30 PM   #34
Rezi
Member
 
Join Date: Nov 2015
Drives: GT86
Location: Europe
Posts: 69
Thanks: 17
Thanked 11 Times in 11 Posts
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quote:
Originally Posted by Kodename47 View Post
I would try to avoid any corrections under WOT as the cylinder pressures will be at maximum and therefore is where damage will occur more. If it's consistent then I would definitely look into it.

At lower load it's not so crucial as the pressures are lower.

It's worth checking the FLKC retard value set in the map to see how much it will pull when it retards timing and adjust accordingly. Also you don't have to remove timing for the whole time that the FLKC is negative. One "knock" event will result in retard for a period of time due to the delays etc.
So it is more important to eliminate the FLKC (knock) at higher rpm's? Makes sense. Cruise FLKC is really hard to eliminate, i gave up on this.

I just pulled little more timing in that area and adjusted the timing compensation (iat) table. Shouldn't knock anymore, also i adjusted all this on the lowest octane fuel (98ron), just to be safe.
Rezi is offline   Reply With Quote
Old 06-13-2016, 03:18 PM   #35
Kodename47
Senior Member
 
Kodename47's Avatar
 
Join Date: Oct 2012
Drives: UK GT86
Location: UK
Posts: 3,040
Thanks: 185
Thanked 1,629 Times in 1,112 Posts
Mentioned: 155 Post(s)
Tagged: 1 Thread(s)
Quote:
Originally Posted by Rezi View Post
So it is more important to eliminate the FLKC (knock) at higher rpm's?
Not so much higher RPMs but higher loads.

I would much rather IAM moving around and having zero knock at WOT than the other way around.

You can adjust non-WOT regions and reduce lower load knock retard, but you need good length or many logs and use the data correctly. As has been said before, blanket reducing timing based on little data just detunes the car.
__________________
.: Stealth 86 :.
Abbey Motorsport/K47 Tuned Sprintex 210 Supercharger

Kodename 47 DJ:
Soundcloud / Instagram / Facebook
Kodename47 is offline   Reply With Quote
The Following User Says Thank You to Kodename47 For This Useful Post:
randomthoughts (06-13-2016)
Old 06-13-2016, 03:36 PM   #36
Rezi
Member
 
Join Date: Nov 2015
Drives: GT86
Location: Europe
Posts: 69
Thanks: 17
Thanked 11 Times in 11 Posts
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quote:
Originally Posted by Kodename47 View Post
Not so much higher RPMs but higher loads.

I would much rather IAM moving around and having zero knock at WOT than the other way around.

You can adjust non-WOT regions and reduce lower load knock retard, but you need good length or many logs and use the data correctly. As has been said before, blanket reducing timing based on little data just detunes the car.
Understood. So knock based on high engine loads should be investigated. I am literally the guy wo panics if he see's some flkc/fbkc on the logs.

I will try a new tune tomorrow, i already took a lot of timing out of base timing b.

And the typically cruise "knock". I think the best would be to leave it as it is now? My IAM only once dropped from 1 to .88, it was the OTS Stg1 tune. Euro fuel is crap compared to the U.S.

I mean, it can not be worse as stock now..
Rezi is offline   Reply With Quote
Old 06-13-2016, 05:44 PM   #37
solidONE
Senior Member
 
solidONE's Avatar
 
Join Date: Dec 2012
Drives: FR-S Whiteout
Location: California
Posts: 2,863
Thanks: 1,808
Thanked 790 Times in 611 Posts
Mentioned: 42 Post(s)
Tagged: 0 Thread(s)
Good thread!. Should cut down on the "how does my log look" posts.
__________________
Intent > Content

cowardice is the mother of cruelty.
solidONE is offline   Reply With Quote
Old 06-14-2016, 07:05 PM   #38
freerunner
Senior Member
 
freerunner's Avatar
 
Join Date: Jun 2015
Drives: GT86
Location: Germany
Posts: 142
Thanks: 135
Thanked 41 Times in 34 Posts
Mentioned: 3 Post(s)
Tagged: 2 Thread(s)
Quote:
Originally Posted by Kodename47 View Post
I would much rather IAM moving around and having zero knock at WOT than the other way around.
What would happen if the kca table gets zeroed-out?
freerunner is offline   Reply With Quote
Old 06-14-2016, 07:18 PM   #39
Kodename47
Senior Member
 
Kodename47's Avatar
 
Join Date: Oct 2012
Drives: UK GT86
Location: UK
Posts: 3,040
Thanks: 185
Thanked 1,629 Times in 1,112 Posts
Mentioned: 155 Post(s)
Tagged: 1 Thread(s)
Quote:
Originally Posted by freerunner View Post
What would happen if the kca table gets zeroed-out?
Stops IAM from changing. Knock retard still happens.
__________________
.: Stealth 86 :.
Abbey Motorsport/K47 Tuned Sprintex 210 Supercharger

Kodename 47 DJ:
Soundcloud / Instagram / Facebook
Kodename47 is offline   Reply With Quote
Old 06-15-2016, 11:36 PM   #40
Silver Cervy
*Some really cool title*
 
Silver Cervy's Avatar
 
Join Date: May 2016
Drives: 2014 Subaru BRZ Limited
Location: Matthews, NC
Posts: 343
Thanks: 39
Thanked 211 Times in 125 Posts
Mentioned: 2 Post(s)
Tagged: 0 Thread(s)
Does a completely stock car have bad engine knock? If not, what is it about tuning that can create knocking problems? Are there any mods which will most likely increase knocking?

I'm asking this because when I eventually flash the OFT stage 2 uel tune onto my car I want to know if I should be looking out for IAM drops.
Silver Cervy is offline   Reply With Quote
Old 06-16-2016, 12:31 AM   #41
steve99
Banned
 
Join Date: Dec 2013
Drives: FT86
Location: Australia
Posts: 7,998
Thanks: 1,035
Thanked 4,987 Times in 2,981 Posts
Mentioned: 598 Post(s)
Tagged: 2 Thread(s)
Quote:
Originally Posted by Silver Cervy View Post
Does a completely stock car have bad engine knock? If not, what is it about tuning that can create knocking problems? Are there any mods which will most likely increase knocking?

I'm asking this because when I eventually flash the OFT stage 2 uel tune onto my car I want to know if I should be looking out for IAM drops.

this is log from stock car on 95 ron fuel probably something like your 91


http://datazap.me/u/steve99/south-af...0-27-28&solo=2
steve99 is offline   Reply With Quote
The Following User Says Thank You to steve99 For This Useful Post:
solidONE (06-16-2016)
Old 06-16-2016, 12:43 AM   #42
Silver Cervy
*Some really cool title*
 
Silver Cervy's Avatar
 
Join Date: May 2016
Drives: 2014 Subaru BRZ Limited
Location: Matthews, NC
Posts: 343
Thanks: 39
Thanked 211 Times in 125 Posts
Mentioned: 2 Post(s)
Tagged: 0 Thread(s)
Wow, that's a lot worse than I thought it would be. I guess the tune only makes things better then. Good to know.
Silver Cervy is offline   Reply With Quote
 
Reply

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
Ecutek logging Andreas83 Software Tuning 3 07-09-2018 10:57 PM
OP2 logging discussion AdrianG Software Tuning 37 10-06-2017 01:41 PM
BRZ Basic SQ Build hellyvin Electronics | Audio | NAV | Infotainment 13 07-22-2014 12:25 AM
IAT logging, what are you guys seeing? BRZPDX Forced Induction 3 03-02-2014 01:59 PM


All times are GMT -4. The time now is 01:29 AM.


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, vBulletin Solutions Inc.
User Alert System provided by Advanced User Tagging v3.3.0 (Lite) - vBulletin Mods & Addons Copyright © 2024 DragonByte Technologies Ltd.

Garage vBulletin Plugins by Drive Thru Online, Inc.