Dev Blog
Forum
Wiki
About
NefMoto
>
Technical
>
Tuning
>
LDRXN and relation to boost. s4 ko3
Pages: [
1
]
« previous
next »
Author
Topic: LDRXN and relation to boost. s4 ko3 (Read 4099 times)
adeyspec
Full Member
Karma: +0/-0
Offline
Posts: 131
LDRXN and relation to boost. s4 ko3
« on: March 08, 2013, 01:33:35 PM »
right so this might be a simple question to some but to me i cant get my head around it. if using ldrxn for wot boost why does the boost spike then settle even if its not written into it.
im trying to set mine to run 17 spike tapering down to 14-15ish. it over shoots to nearly 20 then 17 tapering down to 14/15? is this normal behavior for little turbos as in the ecu cant keep up with keeping it in line? i will looking into tapering up the values over some more revs and see if that helps. just takes me a while with having to bench the ecu everytime i need to make a change. As always cheers for the help guys
Logged
krazydbiker
Full Member
Karma: +4/-1
Offline
Posts: 202
Re: LDRXN and relation to boost. s4 ko3
« Reply #1 on: March 08, 2013, 01:50:20 PM »
mine had the same problem, i had to play with the boost PIDS to get it under control, it was requesting a 95% duty cycle initially before it would correct it causing mine to spike pretty bad
you should log it and see if your having the same issue i was
i think the s4 tuning wiki has a write up on tweaking them
Logged
IamwhoIam
Hero Member
Karma: +52/-115
Offline
Posts: 1070
Re: LDRXN and relation to boost. s4 ko3
« Reply #2 on: March 08, 2013, 01:55:01 PM »
So how many times have you tweaked your file so far? Can you post some logs?
Logged
I have no logs because I have a boost gauge (makes things easier)
adeyspec
Full Member
Karma: +0/-0
Offline
Posts: 131
Re: LDRXN and relation to boost. s4 ko3
« Reply #3 on: March 09, 2013, 01:01:04 AM »
im actually tweaking 2 files as i go, one in each ecu. i will do some logging today and see how i get on, seems to be common in nearly all maps ive seen running though. and logging even with vag com in my car gets tricky, the dash likes to disconect and throw a wobbly. might try running a kline from the ecu to the obd port
«
Last Edit: March 09, 2013, 04:00:53 AM by adeyspec
»
Logged
Pages: [
1
]
Print
« previous
next »
Jump to:
Please select a destination:
-----------------------------
General
-----------------------------
=> Introductions
=> General Discussion
-----------------------------
Noob Zone
-----------------------------
=> Noob Questions
=> Noob Guides and FAQs
-----------------------------
Technical
-----------------------------
=> NefMoto Software
=> Tuning
===> Documents & Helpers & How To's
===> Community Projects
=> Diagnostics
=> Flashing and Chipping
=> Cluster and Immobilizer
===> ECU EEPROM images
===> Original Cluster dumps
===> Original Cluster dump requests
=> Data Logging
=> Reverse Engineering
=> Communication Protocols
-----------------------------
ECU Files
-----------------------------
=> ECU Definition Files
===> ECU Definition File Requests
=> Original ECU Files
===> Original ECU File Requests
=> Checksum Update Requests
-----------------------------
Vehicles
-----------------------------
=> Vehicle Tech
=> Project Cars
-----------------------------
Regional
-----------------------------
=> Canadian Regional Discussion
=> US Regional Discussion
-----------------------------
Classifieds
-----------------------------
=> For Sale
=> Wanted
=> Services
-----------------------------
Miscellaneous
-----------------------------
=> Off Topic
=> Forum Tech Support
=> Bizarro Messages Posted by Bots and Spammers
Navigation
Home
Help
Login
Register
Personal Tools
November 30, 2024, 10:08:12 AM
Welcome,
Guest
. Please
login
or
register
.
Did you miss your
activation email?
1 Hour
1 Day
1 Week
1 Month
Forever
Login with username, password and session length
Search
Advanced Search
Loading...
Logged
