|
|
|
|
Thread Tools | Display Modes |
05-18-2010, 01:24 AM | #1 | |
Scooby Specialist
Member#: 140838
Join Date: Feb 2007
Chapter/Region:
SCIC
Location: Rancho Cucamonga, CA
Vehicle:2002 WRX Wagon 03WRX/06STi/07FOZ/08LEG |
Trying to learn how to edit ROM's / how to tune
Since I'm new, I will not be tuning my car as of yet. I am getting a new tune from CAMtuning. I just want to learn myself.
I've been reading and reading all I can about tuning. I even bought NSFW's book recommendations (haven't read the whole thing yet). I'm having problem w/ my tune. It's a stage 2 Tim Bailey tune w/ EcuteK. I'm currently working on getting a new ecu so I don't need to use EcuteK. My logs are below. Really horrible. (Bought the car with this tune.) 3rd gear pull 1 3rd gear pull 2 3rd gear pull 3 Mods: Stock TD04 APS FMIC 525 APS CAI 65mm APS recirc valve Cusco Headers Vishnu Uppipe HKS TBE My IAM is at 9 and have been reading it should be at 16. I should have zero FBKC and FLKC. What should I do about the tune? I really want to learn and understand the logic behind where to start. I was on Rom Raiders and I just found out that I should set WGDC by zeroing the tables in Max Wastegate duty and Initial-off Wastegate Duty. After I do a log of this change, what am I really looking for? This is what was advised on RR to me: Quote:
1.) What kind of numbers for load am I looking for in step 1? 2.) What kind of number am I looking for when checking fueling and timing? Am I looking for 0 FLKC & FBKC? 3.)How many PSi should I start with. 4.) How do you "fine tune" the boost control? What else can I do to diagnose and correct this problem? Steps on how tuners diagnose and troubleshoot problems will be greatly appreciated. I have a stock ROM I can reference as well.
* Registered users of the site do not see these ads.
Last edited by SueBaroo; 05-18-2010 at 01:33 AM. |
|
05-18-2010, 01:36 AM | #2 |
Scooby Specialist
Member#: 26568
Join Date: Oct 2002
Chapter/Region:
NESIC
Location: Brighton, Mass
Vehicle:2003 Yellow Bugeye Version 8-Vf37 |
i'm gonna guess its fuel related.
is it possible you have a vacuum leak somewhere? i'm gonna guess the car is running lean and thus knocking because it looks like you peak torque timing target is about 14 which is not too aggressive at all. your wastegate is maxing out too. maybe something mechanical, it shouldn't take 100 percent duty cycles to run 10lbs of boost at redline. |
05-18-2010, 10:40 AM | #3 | |
Scooby Specialist
Member#: 140838
Join Date: Feb 2007
Chapter/Region:
SCIC
Location: Rancho Cucamonga, CA
Vehicle:2002 WRX Wagon 03WRX/06STi/07FOZ/08LEG |
Quote:
Is the WGDC really maxing out? I see it at 80% +/- at the most. Not 100%. Yes it is running lean thus knocking. Question, where are you reading the peak torque timing? I can't find any vacuum leak. The car idle's fine ad when I spray carb cleaner or soapy water, I don't find anything. Should I be concerned about A/F Learning #1? From what I learned is that optimal power through open loop should be 11-12.5 during WOT. I see it tapers down to 6....what does that mean? |
|
05-18-2010, 11:06 AM | #4 | ||||
Scooby Specialist
Member#: 26568
Join Date: Oct 2002
Chapter/Region:
NESIC
Location: Brighton, Mass
Vehicle:2003 Yellow Bugeye Version 8-Vf37 |
Quote:
Quote:
Quote:
Quote:
Since you can log, download software called learning view from romraider and run it on your car. It will pull all the learned knock your car currently has stored on the ecu and show you your closed loop fueling compensations. You should pull timing from your map and make it safer. don't do any wot runs until you either have it tuned or get a wideband 02. not a good idea to keep it knocking and have 6* of timing pulled. as a matter of fact, its good that your iam is at 9 because your car is not safe. if you do enough reading, you can self tune it, then you'll need a wideband o2 thats gonna cost you 200 bucks. you can install it yourself, i did and i'm not too mechanically inclined. or you can pay 500 for a professional dyno tune. Some tuners are better than others and when i say better, i mean actually care about your tune, vs getting out the door. Last edited by scoobystas; 05-18-2010 at 11:11 AM. |
||||
05-18-2010, 03:16 PM | #5 |
Scooby Specialist
Member#: 140838
Join Date: Feb 2007
Chapter/Region:
SCIC
Location: Rancho Cucamonga, CA
Vehicle:2002 WRX Wagon 03WRX/06STi/07FOZ/08LEG |
Aha, I see the Primary WGDC 100%. I was mainly looking at the mid-high RPMS and didn't notice those AND I was looking at injector duty cycle not primary WGDC.
I do have learning view and will post the log here. So should I also set my WGDC to 0 also? |
05-18-2010, 03:44 PM | #6 |
Scooby Specialist
Member#: 26568
Join Date: Oct 2002
Chapter/Region:
NESIC
Location: Brighton, Mass
Vehicle:2003 Yellow Bugeye Version 8-Vf37 |
if set your wgdc to zero, it will show you the amount of pressure in your wastegate spring, you will only boost to like 8lbs, because past this, the wastegate will just open and flow air around the turbine and so you won't be able to build any more boost.
But, it will also show you the natural spooling of your turbo and at what points you want to start adding wgdc, so that it keeps the wastegate closed and allows you to build boost past wastegate pressue. |
05-18-2010, 03:49 PM | #7 | |
Scooby Specialist
Member#: 140838
Join Date: Feb 2007
Chapter/Region:
SCIC
Location: Rancho Cucamonga, CA
Vehicle:2002 WRX Wagon 03WRX/06STi/07FOZ/08LEG |
Quote:
Ignition Timing - Advance Ignition Timing - Compensation Ignition Timing - Knock Control |
|
05-18-2010, 06:17 PM | #8 | |
Scooby Specialist
Member#: 147628
Join Date: Apr 2007
Chapter/Region:
MAIC
Location: Eldersburg, MD
Vehicle:2019 Jeep Wrangler Firecracker Red |
Quote:
Post up your learning view, I'm curious to see where it's learned to pull timing already. When you log, don't bother logging the innovate LC-1 and LM-1, since you don't have them... Also, fuel learning and correction, better off not logging it, and use learning view instead. The more parameters you log, the less data you capture. |
|
05-18-2010, 07:31 PM | #9 | |
Scooby Specialist
Member#: 140838
Join Date: Feb 2007
Chapter/Region:
SCIC
Location: Rancho Cucamonga, CA
Vehicle:2002 WRX Wagon 03WRX/06STi/07FOZ/08LEG |
Quote:
|
|
Thread Tools | |
Display Modes | |
|
|
Similar Threads | ||||
Thread | Thread Starter | Forum | Replies | Last Post |
Want to learn how to Tune | emsfd125 | Newbies & FAQs | 8 | 02-09-2010 11:51 AM |
Trying to learn how to use the StreetTuner | shemoves | AccessPort | 0 | 09-07-2007 04:18 PM |
guys...I need to learn C++...what's the best way to approach it??? | xfactor834 | Off-Topic | 20 | 11-03-2003 10:41 PM |
Want to learn how to tune an ECU...and actually do it on a real dyno? | 2000vfr800 | Engine Management & Tuning | 9 | 03-19-2003 02:20 PM |
Where to learn how to tune your car | acss | Factory 2.0L Turbo Powertrain (EJ Series Factory 2.0L Turbo) | 3 | 10-16-2002 09:23 PM |