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 Post subject: Tuning Terminology
PostPosted: Fri Jul 05, 2013 2:35 am 
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I Say: Hitting the Apex!
Vehicle: '11 FXT+'14 GLA45+'15 WRX

Posts: 4083
Location: Northern NSW
CL/OL: is whether the ECU is referencing the factory front O2 sensor for closed loop feedback on fuel economy
Gear: Calculated based on engine rpm and road peed which gear you are in
Pedal% - Accelerator pedal angle percentage
Throttle_OA - Throttle opening angle, which can vary in relation to the Accelerator Pedal
RTorque - Requested Torque... not actual crank torque but is used to link some of the ECU's vital functions such as the gearbox lock up and the relationship between accelerator angle and throttle angle. More information here: http://romraider.com/forum/viewtopic.php?f=15&t=7370
kph - Road speed based on factory tyres
Eload - Engine load which is the amount of air in the cylinder on every engine revolution. A 4 stroke engine only has 2 cylinders open per revolution and ideally, 1.47g/rev is roughly 0psi boost pressure and ideally, with 15psi you are wanting to see around 2.94g/rev for a smooth torque curve.

A/F_C_#1 - Correction applied to get the O2 sensor to match the MAF sensor. This can vary wildly +/- 25% under normal driving bsed on various values
A/F_L#1 Learnt Bell Curve corrections based on the AF_C#1. The main goal is to ensure the D range is close to 0 in Learning View as it stops a fuel correction being applied in open loop(on boost)
A/F_S#1 - Air:Fuel ratio
Batt(V) - Battery Voltage which can influence the injectors at idle
RPM - Engine speed
FBKC - Feedback Knock but also incorporates Pre-Emptive Feedback Knock
FLKC - Learnt Knock Crrection sotred in memory to pull timing based on the engine having to pull timing at this engine speed or RPM previously
IAM - Ignition Advance Multiplier
IgnitionTotalTiming - Total Timing Timing which is Base Timing + Knock Correction Advance Table + any other timing additives or retarding from other various tables
IPW, - Injector Pulse Width - how much fuel flow is being used.
IDC(%) - A figue of say 67% is around 1.45L/minute with 550cc injectors or 84L/Hour if you kept it at that flow for an hour
IAT(F) Intake Air Temperature
ECT(F) Engine Coolant Temp
MAirflow(g/s) - Estimated calculated Airflow past the airflow meter near the airbox -
MAirflow(V) - Actual Airflow Meter Voltage generated
APsi - Absolute Boost Pressure, so a figure of 14.65 is rouchly 0psi boost presure, while 29.3 is roughly 1 bar boost
VVT_Right + VVT_Left - Variable Valve Timing Advance on the Inlet cams
TDProp,TDIntegral,Boost_Error*(psi),P_wgdc, - All related to the boost control system and how close to target boost the tune is which allows boost in each gear to be close as possible
A/F#1A,A/F#1B,A/F#1C,A/F#1D - The top four values in Learning View which are the individual AF Learning values
Fuel_Pump_Duty(%) - Variable Fuel Pump control gives 33% at idle, 66% on spool and 100% above 5psi, this can be manipulated for best results
OL - Open Loop Estimated Air:Fuel Ratio,
MRPCorrected,Target_BoostCorrected, - Boost pressure
Km/L - Estimated Fuel economy in the reverse notation of the factory readout

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 Post subject: Re: Tuning Terminology
PostPosted: Tue Aug 20, 2013 3:50 pm 
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I Say: I'm an EJ207 fanboi all the way ;)
Vehicle: '04 Golf GTD

Posts: 5946
Location: Sowff Essex, UK
What's DBW, Matt??? I've seen that thrown around a few forums (mostly Lib ones), so I'm guessing it has something to do with TCU tuning...?

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 Post subject: Re: Tuning Terminology
PostPosted: Tue Aug 20, 2013 3:51 pm 
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I Say: Keep the hammer down
Vehicle: 02GT/6MT/Modtown

Posts: 31610
Location: SE MEL
Sean_XTLux wrote:
What's DBW, Matt??? I've seen that thrown around a few forums (mostly Lib ones), so I'm guessing it has something to do with TCU tuning...?

Drive by Wire

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 Post subject: Re: Tuning Terminology
PostPosted: Tue Aug 20, 2013 3:51 pm 
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I Say: The ting goes skrrrahh, pap, pap, ka-ka-ka Skidiki-pap-pap, and a pu-pu-pudrrrr-boom
Vehicle: Crystal Grey '05 XT

Posts: 8498
Location: The Gong
Drive by wire.

Oh, wrong Matt.

*edit. Beaten by Walè

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 Post subject: Re: Tuning Terminology
PostPosted: Tue Aug 20, 2013 4:05 pm 
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I Say: I'm an EJ207 fanboi all the way ;)
Vehicle: '04 Golf GTD

Posts: 5946
Location: Sowff Essex, UK
Thanks Waali.

Matt (TCG), you're hopeless :lol:

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 Post subject: Re: Tuning Terminology
PostPosted: Tue Aug 20, 2013 4:15 pm 
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I Say: subtle sooped-up subie stokes surprise!
Vehicle: MY06 built SG STI conversion

Posts: 5943
Location: Sydney
Drive By Wallengong?

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 Post subject: Re: Tuning Terminology
PostPosted: Tue Aug 20, 2013 4:16 pm 
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I Say: The ting goes skrrrahh, pap, pap, ka-ka-ka Skidiki-pap-pap, and a pu-pu-pudrrrr-boom
Vehicle: Crystal Grey '05 XT

Posts: 8498
Location: The Gong
There have been a few drive bys in Wallengong...

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 Post subject: Re: Tuning Terminology
PostPosted: Tue Aug 20, 2013 4:25 pm 
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I Say: I'm an EJ207 fanboi all the way ;)
Vehicle: '04 Golf GTD

Posts: 5946
Location: Sowff Essex, UK
ThatChinskiGuy wrote:
There have been a few drive bys in Wallengong...

Foz is a perfect car for it... 8-)

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 Post subject: Re: Tuning Terminology
PostPosted: Tue Aug 20, 2013 4:25 pm 
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I Say: R is for RACE!
Vehicle: '15 CWP 6mt Rex

Posts: 7078
Location: Sydney
FFS
Flat Foot Shifting :D

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 Post subject: Re: Tuning Terminology
PostPosted: Tue Aug 20, 2013 4:34 pm 
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I Say: I'm an EJ207 fanboi all the way ;)
Vehicle: '04 Golf GTD

Posts: 5946
Location: Sowff Essex, UK
dazzz168 wrote:
FFS
Flat Foot Shifting :D


We got that standard Dan :mrgreen:

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