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mods on Accord CF4
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<blockquote data-quote="fairy" data-source="post: 2617121" data-attributes="member: 55635"><p>thats possible.. theres something called tuning points in vafc and piggybacks.. at each point of rpm our car has diferrent af ratio, so b4 ur vtec open your ecu gives a command to deliver that amount of fuel but sadly its too lean, then when vtec open, the ecu commands to give another amount of fuel but this time too rich, thats why got black smoke.. piggybacks will trick the ecu to give certain amounts of fuel at specified revs for the best co mixture..</p><p></p><p>new vafc from what i know is no longer available in the market.. most are used units or stolen goods.. too bad one of my buddies just sold his vafc2 black edition.. use 3 months only.. vafc 2 would be my recommendation for u bro if you are on budget.. vafc2 also gives more tuning points than vafc.. vafc2 would be simple and easy to tune.. looks good too.. rite bro fobs? got red light blinking blinking.. hehe ..</p><p></p><p>neo would be good choice too.. got colour screen.. the good thing bout the neo is it can be used for almost any japanese car.. so if next time u change to another brand of car also can use back..</p><p></p><p>p/s; bro sato..even with piggybacks, ur fuel pressure must be in check.. some money sucking ppl will ask u to change fuel pump.. expensive.. just get a fuel regulator and make sure ur fuel filter and injectors are not clogged if u have a fuel pressure problem.. </p><p></p><p></p><p></p><p>bro sato, put titanium teeth, or carbon fibre teeth also cun.. hehehe</p><p></p><p></p><p></p><p></p><p></p><p>bro fobs.. yup klakakalakal is knocking sound.. often heard from proton wira when going uphill especially genting and on hot days.. but the sound of typewriter tappets is usual if adjusted a bit loose for minimum valve spring bounce at high revs.. i dont know the factory gapping for the tappets for f20b lah.. whats yours ah bro?.. if u know let me know ah..hehehe</p><p>my exhaust diameter for my h22a is 2.3mm my white fairy also 2.3mm( too big for f20b i think ..just nice for standard tuned h22a manual though) </p><p></p><p>i memang born in penang.. penang glen eagles is the place i took my first breath of the world we live in.. then i grew up in j.b. then went back to penang for almost two years then came to k.l. .. been here for the past 10 over years.. sigh.. miss the chicks in s,pore, j.b. and penang... sigh... hehehe<img src="https://zerotohundred.com/forums/styles/default/xenforo/smilies/biggrin.gif" class="smilie" loading="lazy" alt=":biggrin:" title="Biggrin :biggrin:" data-shortname=":biggrin:" /> </p><p></p><p>wah bro fobs got the original bose sound system ah.. i got also but just the woofer dome casing at the back and side door panels.. the previous owner took it out i suppose :( next we meet can u let me see yours plssssssssssss.. ?????</p><p></p><p>geng, pls correct me and teach me if im wrong bout the technical part.. k.. thanks guys<img src="https://zerotohundred.com/forums/styles/default/xenforo/smilies/itsme.gif" class="smilie" loading="lazy" alt=":itsme:" title="Itsme :itsme:" data-shortname=":itsme:" /> <img src="https://zerotohundred.com/forums/styles/default/xenforo/smilies/biggrin.gif" class="smilie" loading="lazy" alt=":biggrin:" title="Biggrin :biggrin:" data-shortname=":biggrin:" /> <img src="https://zerotohundred.com/forums/styles/default/xenforo/smilies/adore.gif" class="smilie" loading="lazy" alt=":adore:" title="adore :adore:" data-shortname=":adore:" /></p></blockquote><p></p>
[QUOTE="fairy, post: 2617121, member: 55635"] thats possible.. theres something called tuning points in vafc and piggybacks.. at each point of rpm our car has diferrent af ratio, so b4 ur vtec open your ecu gives a command to deliver that amount of fuel but sadly its too lean, then when vtec open, the ecu commands to give another amount of fuel but this time too rich, thats why got black smoke.. piggybacks will trick the ecu to give certain amounts of fuel at specified revs for the best co mixture.. new vafc from what i know is no longer available in the market.. most are used units or stolen goods.. too bad one of my buddies just sold his vafc2 black edition.. use 3 months only.. vafc 2 would be my recommendation for u bro if you are on budget.. vafc2 also gives more tuning points than vafc.. vafc2 would be simple and easy to tune.. looks good too.. rite bro fobs? got red light blinking blinking.. hehe .. neo would be good choice too.. got colour screen.. the good thing bout the neo is it can be used for almost any japanese car.. so if next time u change to another brand of car also can use back.. p/s; bro sato..even with piggybacks, ur fuel pressure must be in check.. some money sucking ppl will ask u to change fuel pump.. expensive.. just get a fuel regulator and make sure ur fuel filter and injectors are not clogged if u have a fuel pressure problem.. bro sato, put titanium teeth, or carbon fibre teeth also cun.. hehehe bro fobs.. yup klakakalakal is knocking sound.. often heard from proton wira when going uphill especially genting and on hot days.. but the sound of typewriter tappets is usual if adjusted a bit loose for minimum valve spring bounce at high revs.. i dont know the factory gapping for the tappets for f20b lah.. whats yours ah bro?.. if u know let me know ah..hehehe my exhaust diameter for my h22a is 2.3mm my white fairy also 2.3mm( too big for f20b i think ..just nice for standard tuned h22a manual though) i memang born in penang.. penang glen eagles is the place i took my first breath of the world we live in.. then i grew up in j.b. then went back to penang for almost two years then came to k.l. .. been here for the past 10 over years.. sigh.. miss the chicks in s,pore, j.b. and penang... sigh... hehehe:biggrin: wah bro fobs got the original bose sound system ah.. i got also but just the woofer dome casing at the back and side door panels.. the previous owner took it out i suppose :( next we meet can u let me see yours plssssssssssss.. ????? geng, pls correct me and teach me if im wrong bout the technical part.. k.. thanks guys:itsme: :biggrin: :adore: [/QUOTE]
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