Idle target
Thread Starter
Drifting
Joined: Oct 2006
Posts: 1,724
Likes: 23
From: Minnesota
Idle target
I'm new to tuning (hp tuners) and I'm in the process of tuning my '98 A4 for idle. Considering I'm along way away from a fully competent tuner what idle speed should I reasonably target:
P/N AC OFF:
P/N AC ON:
Drive AC OFF:
Drive AC ON:
For the following mods:
228/232 .571/573 112
Dart Pro 1 205 Heads
P1SC w/ 4.25 pulley (A&A)
Fast Intake
LS2 TB
BBK Headers
Yank SS3600
Thanks for the advice!
P/N AC OFF:
P/N AC ON:
Drive AC OFF:
Drive AC ON:
For the following mods:
228/232 .571/573 112
Dart Pro 1 205 Heads
P1SC w/ 4.25 pulley (A&A)
Fast Intake
LS2 TB
BBK Headers
Yank SS3600
Thanks for the advice!
Thread Starter
Drifting
Joined: Oct 2006
Posts: 1,724
Likes: 23
From: Minnesota
Thanks, that is exactly the rpm I was shooting for, I just thought it may have been a little high. Its idling pretty decent now, minus a surge it gets (which starts the idle death oscillation). I assume it largley has to do with the larger TB (airflow vs TPS). I'll figure it out.
Thread Starter
Drifting
Joined: Oct 2006
Posts: 1,724
Likes: 23
From: Minnesota
Thanks for the info! No, I am not running stock injectors (60# Siemens deka). I have them installed, but not tuned yet. Haven't figured out how to do that yet, still researching this, I'm hoping to have the injectors set up sometime this week.
Thread Starter
Drifting
Joined: Oct 2006
Posts: 1,724
Likes: 23
From: Minnesota
Haven't had much success in determining which tables to adjust (IFR for sure). Not much good info out there discussing this and surprisingly the worst source of info/help is HPTuners themselves. Work is getting in my way of research, so I'm a little behind schedule.
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Thread Starter
Drifting
Joined: Oct 2006
Posts: 1,724
Likes: 23
From: Minnesota
Siemens Deka 107961 (aka Edge M000200)
Basic Specs:
Coil Resistance: 12.5 Ohms / High Impedance / High- Z (No ECM driver modifications required)
• Static Flow Rate @ 43.5PSI ( 300kPa ) w/Gas: 60 lb/hr = 630 cc/min = 453 g/min
• Static Flow Rate @ 87PSI ( 600kPa ) w/Gas: 85.7 lb/hr = 900 cc/min = 648 g/min
• Gain: 0.11ms/mg
• Offset: 0.055ms
• Turn on time @ 14VDC: 1.14ms
• Turn off time: 0.85ms @ 600KPa
I do have some more info I pulled off of the injector website, just not sure exactly what to do with it.
Instructor
Joined: Sep 2008
Posts: 192
Likes: 1
From: Ashton
Thread Starter
Drifting
Joined: Oct 2006
Posts: 1,724
Likes: 23
From: Minnesota
You are correct the tune needs to be correct. But you are incorrect, I will be able to tune it correctly myself.
Just a bit of a learning curve. I have Greg B's tuning DVD coming so that will be a good start.
Thread Starter
Drifting
Joined: Oct 2006
Posts: 1,724
Likes: 23
From: Minnesota
Reactor! Check this out! www.calibratedsuccess.com
Greg ! might help you out.
Greg ! might help you out.
Thread Starter
Drifting
Joined: Oct 2006
Posts: 1,724
Likes: 23
From: Minnesota
Instructor
Joined: Oct 2009
Posts: 215
Likes: 1
From: Roseville CA
You need to change the ETC area scalar to 0.0192 for the 90mm throttle body if you haven't already. I use the Banish injector specs with good results. I would recommend you check out the hptuners repository for other sc cars so you can see what your tune should look like. Note the timing, ve, and maf tables (if you are running a maf). Check out some basic tuning guides as well like this one.