08-23-2005, 06:13 PM | #1 |
3v's are slow
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Commanding AFR
After doing some reading on eectuning.org I am wondering if I have been doing this wrong in my car.
In the past I have been using the function WOT_fuel_multiplier vs rpm. I would adjust this on the dyno to dial in my w/band AFR. Is this wrong? Should I be doing this Tables under Fuel_table_base_OL?
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2009 Porsche Carrera S 2008 ///AMG C63.. Eurocharge Tune. RIP 2019 AMG GLC43..wife's 03 F250 SD.. Edge Evo, AFE Stage 1 CAI 08 GT. JBA axle back, FRPP springs, FRPP swaybars.. daughter's 01 Cobra vert... wife's I need a new toy |
08-23-2005, 08:05 PM | #2 |
5.0 Block/Walnut Cracker
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Re: Commanding AFR
You should be dialing in the MAF curve to match the base OL fuel table...........with adaptive disabled. When this is accomplished recheck load if correct turn adaptive back on. From then on you can use the fuel table and your tune will not change all the time (if the maf etc. is correct of course).
Go here he should have the A9L stuff fixed by now. http://www.geocities.com/efipunk/ |
08-23-2005, 08:13 PM | #3 |
3v's are slow
Join Date: Dec 2004
Location: Here and There
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Re: Commanding AFR
ahhh...Thank you very much. Hadn't seen that. Now I am going to review this for a little while before bed
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2009 Porsche Carrera S 2008 ///AMG C63.. Eurocharge Tune. RIP 2019 AMG GLC43..wife's 03 F250 SD.. Edge Evo, AFE Stage 1 CAI 08 GT. JBA axle back, FRPP springs, FRPP swaybars.. daughter's 01 Cobra vert... wife's I need a new toy |
08-23-2005, 08:22 PM | #4 |
5.0 Block/Walnut Cracker
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Re: Commanding AFR
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08-23-2005, 08:34 PM | #5 |
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Re: Commanding AFR
I think the best use for the wot fuel mult. is if you have a pegged maf where you can increase fuel by rpm, not airflow.
Bob
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1996 GT, forged parts, vortech, ZXA3 processor, etc. |
08-23-2005, 08:35 PM | #6 |
3v's are slow
Join Date: Dec 2004
Location: Here and There
Posts: 17,152
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Re: Commanding AFR
ok question (while it is fresh on my mind)
Do I set the WOT_fuel_multiplier vs rpm at 1? (really don't remember what it was set at originally) -and- When is this Function used? In other words, at what point would you change it?
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2009 Porsche Carrera S 2008 ///AMG C63.. Eurocharge Tune. RIP 2019 AMG GLC43..wife's 03 F250 SD.. Edge Evo, AFE Stage 1 CAI 08 GT. JBA axle back, FRPP springs, FRPP swaybars.. daughter's 01 Cobra vert... wife's I need a new toy |
08-23-2005, 08:36 PM | #7 | |
3v's are slow
Join Date: Dec 2004
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Re: Commanding AFR
Quote:
oh ok..
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2009 Porsche Carrera S 2008 ///AMG C63.. Eurocharge Tune. RIP 2019 AMG GLC43..wife's 03 F250 SD.. Edge Evo, AFE Stage 1 CAI 08 GT. JBA axle back, FRPP springs, FRPP swaybars.. daughter's 01 Cobra vert... wife's I need a new toy |
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08-23-2005, 08:40 PM | #8 |
3v's are slow
Join Date: Dec 2004
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Re: Commanding AFR
So am I understanding this right in that I turn adaptive off while performing the 'chart' on the dyno
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2009 Porsche Carrera S 2008 ///AMG C63.. Eurocharge Tune. RIP 2019 AMG GLC43..wife's 03 F250 SD.. Edge Evo, AFE Stage 1 CAI 08 GT. JBA axle back, FRPP springs, FRPP swaybars.. daughter's 01 Cobra vert... wife's I need a new toy |
08-23-2005, 09:52 PM | #9 | |
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Re: Commanding AFR
Quote:
Base Fuel = (.5 * MAF * KAMRF) / (14.64 * LAMBSE) In the above equation if all variable are constant except KAMRF then the Base Fuel follows. The MAF correction should be MAF * KAMRF.
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EEC Analyzer A9M, TwEECer, 306ci, 73mm C&L w Tuner Tube, Cobra Intake, 42# inj, Edelbrock 6037, E303 cam, 155 fuel pump, FPR, 70mm TB, E-Fan, 3.55 gears, Powerdyne 9psi actual 5psi...way more. |
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08-24-2005, 06:50 AM | #10 |
5.0 Block/Walnut Cracker
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Re: Commanding AFR
Clint,
I have not looked at it in the past week or so as I thought he had it all fixed. I will go take a look here in a bit as I have a meeting until noon. He might possibly have a typo very easy to do as I know this first hand. |
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