S-AFC Settings
Sep 11, 2003, 09:16 PM
#1
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S-AFC Settings
I have an Evolution 7 with the modifications listed below:
TOMEI 2.2L Stroker Kit
TOMEI Camshafts
HKS 680cc Injectors
Walbro 255 ltr/hr Fuel Pump
Blitz NUR Spec Exhaust System
HKS Induction Kit
WORKS Throttle Body
DN Performance Headers
Unorthodox Racing Pulley Set
Blitz SBC Type-R Boost Controller (1.5 BAR/22 PSI)
May someone please help me and tell what S-AFC settings I should use to tune my car perfectly not being too rich or too lean. I understand that it is really hard for you to give me numbers that are really close. But all I'm looking for is a rough idea. May you please give me the numbers for all the RPMs (1000, 2000, 3000, 4000, 5000, 6000, 7000, 8000). I would really appreciate all your feedback and help. Thank you very much.
TOMEI 2.2L Stroker Kit
TOMEI Camshafts
HKS 680cc Injectors
Walbro 255 ltr/hr Fuel Pump
Blitz NUR Spec Exhaust System
HKS Induction Kit
WORKS Throttle Body
DN Performance Headers
Unorthodox Racing Pulley Set
Blitz SBC Type-R Boost Controller (1.5 BAR/22 PSI)
May someone please help me and tell what S-AFC settings I should use to tune my car perfectly not being too rich or too lean. I understand that it is really hard for you to give me numbers that are really close. But all I'm looking for is a rough idea. May you please give me the numbers for all the RPMs (1000, 2000, 3000, 4000, 5000, 6000, 7000, 8000). I would really appreciate all your feedback and help. Thank you very much.
Sep 12, 2003, 10:26 AM
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You have a 7 and you dont have anything for fuel, just the SAFC, how are you running 1.5 bar with the stock ecu since the factory fuel cut is set to 1.2 1.3 bar?
Sep 14, 2003, 10:39 AM
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Lower your boost. If your running 22 PSI on a 2.2 liter, which flows about 10% more, your talking somewhere in the area of 24.5 PSI. You should be at no more then 18 PSI for pump gas unless you really want to **** something up.
I am not saying that the Engine can't handle 22 psi from a properly sized turbo, but a 16g will be overheating the air badly.
As for yor settings, on 680's you will want to be somewhere around -35% to start, which will still make you run rich, but get you in the ball park. You always want to tune down, not up. For obvious reasons.
Your settings at Idle will be richer though, as is typical.
I am not saying that the Engine can't handle 22 psi from a properly sized turbo, but a 16g will be overheating the air badly.
As for yor settings, on 680's you will want to be somewhere around -35% to start, which will still make you run rich, but get you in the ball park. You always want to tune down, not up. For obvious reasons.
Your settings at Idle will be richer though, as is typical.
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Sep 14, 2003, 12:51 PM
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Dude, with those mods done to the car, you should be at a shop getting a professional tune done. Start there first. Get the settings and as you learn more, you change to meet your needs.
Sep 14, 2003, 01:00 PM
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every car will have different fuel numbers...even if you have two exact setups...both will have different settings on the AFC. if you have no shop and want to modify your car your going to have to buy all of the tuning equipment yourself. thats the only way you won't blow up your motor.
buy a wideband O2 sensor....this will help you adjust the AFC.
buy a wideband O2 sensor....this will help you adjust the AFC.
