good websites for teaching how to tune vafc??
08-23-2003, 06:25 PM
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good websites for teaching how to tune vafc??
i need a good website,if there is one,that takes you through the steps on whats what and hows how.id like to learn specificaly what im doing when i mess with everything.im not interested in the hack and how to do that,i want to know how to tune the vafc for a/f ratio,using a wideband.
08-23-2003, 10:03 PM
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Re: good websites for teaching how to tune vafc?? (civictypenos)
Why run a hack when you could run the uberchip for ~$200 less? Better results for a lower price (no price).... hmmm...
08-24-2003, 05:20 AM
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For idle and cruise: Hold the motor at a steady RPM, and watch the A/F ratio. On the low table of the VAFC, increase or decrease the correction at whatever that rpm is until you achieve the A/F ratio you want. At idle and cruise this will usually be about 15:1. You also might want to wait and do it several times, so that you can try to bring the long term fuel trims (if Hondas have them?) back close to 0.
At WOT, just make a pull on the dyno or on the street, in as high a grear as you can. Then, plot out the WB across the rev range. Use the hi throttle correction table and adjust the A/F ratio to wherever you want it to be, probably around 12:1.
That's it, really. There are some harder more advanced things, but those are the basics.
At WOT, just make a pull on the dyno or on the street, in as high a grear as you can. Then, plot out the WB across the rev range. Use the hi throttle correction table and adjust the A/F ratio to wherever you want it to be, probably around 12:1.
That's it, really. There are some harder more advanced things, but those are the basics.
08-24-2003, 08:09 AM
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Re: (kpt4321)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by kpt4321 »</TD></TR><TR><TD CLASS="quote">For idle and cruise: Hold the motor at a steady RPM, and watch the A/F ratio. On the low table of the VAFC, increase or decrease the correction at whatever that rpm is until you achieve the A/F ratio you want. At idle and cruise this will usually be about 15:1. You also might want to wait and do it several times, so that you can try to bring the long term fuel trims (if Hondas have them?) back close to 0.
At WOT, just make a pull on the dyno or on the street, in as high a grear as you can. Then, plot out the WB across the rev range. Use the hi throttle correction table and adjust the A/F ratio to wherever you want it to be, probably around 12:1.
That's it, really. There are some harder more advanced things, but those are the basics.</TD></TR></TABLE>
thank you,that helps alot.
At WOT, just make a pull on the dyno or on the street, in as high a grear as you can. Then, plot out the WB across the rev range. Use the hi throttle correction table and adjust the A/F ratio to wherever you want it to be, probably around 12:1.
That's it, really. There are some harder more advanced things, but those are the basics.</TD></TR></TABLE>
thank you,that helps alot.
08-24-2003, 08:30 AM
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Re: (TeStUdO)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by TeStUdO »</TD></TR><TR><TD CLASS="quote">bro just search VAFC hack on this site. there are a ton of threads on it. im sure you will find what you are looking for</TD></TR></TABLE>
i dont want to run the hack,i cant see spending $300 for a vafc,when i could use check valves for that part of it to "trick" the ecu,i want to use it for exact tunning on the a/f ratio.im going to try it a couple of different ways,but i really dont want to use the hack.
i dont want to run the hack,i cant see spending $300 for a vafc,when i could use check valves for that part of it to "trick" the ecu,i want to use it for exact tunning on the a/f ratio.im going to try it a couple of different ways,but i really dont want to use the hack.
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