Apex Update for V-Afc
10-23-2002
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Apex Update for V-Afc
I went to www.apexiusa.com or whatever the page is and I found that they made an update for 2001 civic. There is a diagram for the correct hook up![IMG]i/expressions/face-icon-small-smile.gif[/IMG]
Anyways can anyone tell me what all this stuff on V-Afc does. I am trying to figure it out but no luck. Or i should just go to Dyno place and they will set it up the best way. I am runing like a 65 shoot of n20 so I realy do not know what to change on throtle and all the other stuff. What setup do you guys have on V-afc?? Did u touch the fuel map??
Anyways can anyone tell me what all this stuff on V-Afc does. I am trying to figure it out but no luck. Or i should just go to Dyno place and they will set it up the best way. I am runing like a 65 shoot of n20 so I realy do not know what to change on throtle and all the other stuff. What setup do you guys have on V-afc?? Did u touch the fuel map??
10-23-2002
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Direct linky for the .pdf! (Make sure you have Adobe Acrobat installed)
edit: Now that we think we know where to hook up for VTEC, would buying the V-AFC still be a wise purchase? It's very tempting, espically if I can tune my VTEC to kick in at like 4200 RPMs.
edit: Now that we think we know where to hook up for VTEC, would buying the V-AFC still be a wise purchase? It's very tempting, espically if I can tune my VTEC to kick in at like 4200 RPMs.
10-23-2002
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[hr]Originally posted by: taz757
Direct linky for the .pdf! (Make sure you have Adobe Acrobat installed)
edit: Now that we think we know where to hook up for VTEC, would buying the V-AFC still be a wise purchase? It's very tempting, espically if I can tune my VTEC to kick in at like 4200 RPMs.[hr]
[hr]Originally posted by: taz757
Direct linky for the .pdf! (Make sure you have Adobe Acrobat installed)
edit: Now that we think we know where to hook up for VTEC, would buying the V-AFC still be a wise purchase? It's very tempting, espically if I can tune my VTEC to kick in at like 4200 RPMs.
[hr]
10-23-2002
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[hr]Originally posted by: IDQcivic
I don't know about you but I have an EX and my VTEC now kicks in at around 4200, wouldnt you want to change that instead of keeping it the same?[hr]
[hr]Originally posted by: IDQcivic
Quote
[hr]Originally posted by: taz757
Direct linky for the .pdf! (Make sure you have Adobe Acrobat installed)
edit: Now that we think we know where to hook up for VTEC, would buying the V-AFC still be a wise purchase? It's very tempting, espically if I can tune my VTEC to kick in at like 4200 RPMs.[hr]
[hr]Originally posted by: taz757
Direct linky for the .pdf! (Make sure you have Adobe Acrobat installed)
edit: Now that we think we know where to hook up for VTEC, would buying the V-AFC still be a wise purchase? It's very tempting, espically if I can tune my VTEC to kick in at like 4200 RPMs.
[hr]
10-23-2002
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Rep Power: 0 Ok I have the V-AFC and yes I find it worthwhile. I had the v-tec hooked up before they put that info out and well it works don't adjust it to ungodly levels but that's up to you to find out I have mine set at 3700 and then my throttle settings set up. The extra fuel seems to really help the enigne along especially when the v-tec kicks in. If you have questions on how I have mine tuned feel free to email me. Or if you buy and need help installing. I paid 300 for mine shipped off ebay from a guy who was selling like 20 of em.
10-23-2002
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Quote
[hr]Originally posted by: taz757
Direct linky for the .pdf! (Make sure you have Adobe Acrobat installed)
edit: Now that we think we know where to hook up for VTEC, would buying the V-AFC still be a wise purchase? It's very tempting, espically if I can tune my VTEC to kick in at like 4200 RPMs.[hr]
[hr]Originally posted by: taz757
Direct linky for the .pdf! (Make sure you have Adobe Acrobat installed)
edit: Now that we think we know where to hook up for VTEC, would buying the V-AFC still be a wise purchase? It's very tempting, espically if I can tune my VTEC to kick in at like 4200 RPMs.
[hr]
10-24-2002
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Rep Power: 0 I can't email you, the thingy is not working. So you can guys either post how you are running your V-afc or mail it to me at marcinswi20@aol.com. I have IHE, 63 shoot of N20 and V-afce of course[IMG]i/expressions/face-icon-small-smile.gif[/IMG]. So how does your fuel map look like? Your Throtle? and all the other stuff.
10-24-2002
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[hr]Originally posted by: xblkcivicx
The V-afc is not a toy...you should go to a dyno to tune it..and there is absolutly no need to have it if you have basic bolt ons e.i I/H/E...your stock ecu will take care of those changes...the V-acf would be good if you had a cam, nitrous(not very efficent) or anything that would boost your HP significantly...to move your vtec around will only hurt your performance...the vtec crossover should be set where your Horsepower and Torque meet i.e needing a dyno...if your running nitrous with it you can set your full throttle fuel map to compensate for the added air but you still need a dyno to tune it...over all not worth the 300 bucks to look nice on your dash...unless you have the mod's that it would be usefull for...[hr]
[hr]Originally posted by: xblkcivicx
Quote
[hr]Originally posted by: taz757
Direct linky for the .pdf! (Make sure you have Adobe Acrobat installed)
edit: Now that we think we know where to hook up for VTEC, would buying the V-AFC still be a wise purchase? It's very tempting, espically if I can tune my VTEC to kick in at like 4200 RPMs.[hr]
[hr]Originally posted by: taz757
Direct linky for the .pdf! (Make sure you have Adobe Acrobat installed)
edit: Now that we think we know where to hook up for VTEC, would buying the V-AFC still be a wise purchase? It's very tempting, espically if I can tune my VTEC to kick in at like 4200 RPMs.
[hr]
10-24-2002
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[hr]Originally posted by: Quiksilver09
Yeah by the way I'd definately listen to xblkcivicx he's dead on on that part of it. It's not a toy. I used the settings boosted posted and then talked to a couple people that are wizzes at tuning cars and addons such as that to get my final settings. If you "play around with the setting" you can seriously screw up your car[hr]
[hr]Originally posted by: Quiksilver09
Quote
[hr]Originally posted by: xblkcivicx
The V-afc is not a toy...you should go to a dyno to tune it..and there is absolutly no need to have it if you have basic bolt ons e.i I/H/E...your stock ecu will take care of those changes...the V-acf would be good if you had a cam, nitrous(not very efficent) or anything that would boost your HP significantly...to move your vtec around will only hurt your performance...the vtec crossover should be set where your Horsepower and Torque meet i.e needing a dyno...if your running nitrous with it you can set your full throttle fuel map to compensate for the added air but you still need a dyno to tune it...over all not worth the 300 bucks to look nice on your dash...unless you have the mod's that it would be usefull for...[hr]
[hr]Originally posted by: xblkcivicx
Quote
[hr]Originally posted by: taz757
Direct linky for the .pdf! (Make sure you have Adobe Acrobat installed)
edit: Now that we think we know where to hook up for VTEC, would buying the V-AFC still be a wise purchase? It's very tempting, espically if I can tune my VTEC to kick in at like 4200 RPMs.[hr]
[hr]Originally posted by: taz757
Direct linky for the .pdf! (Make sure you have Adobe Acrobat installed)
edit: Now that we think we know where to hook up for VTEC, would buying the V-AFC still be a wise purchase? It's very tempting, espically if I can tune my VTEC to kick in at like 4200 RPMs.
[hr]
detroit needs a really good import tuning shop
10-25-2002
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Rep Power: 351 I got mine for 300.00 and im having the Honda dealership i bought my car at tune it for me..i get it cheap since they have somewhat sponsered my car [IMG]i/expressions/face-icon-small-smile.gif[/IMG] let you know my settings as soon as i do
10-25-2002
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Rep Power: 0 I'm trying to sell my venom 400, if anyone wants it $200 shipped! I'll probably get a apexi VAFC once people get the right settings figured out and find out if it works with the VTEC since we have the right wiring diagram for our cars.
10-28-2002
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[hr]The V-afc is not a toy...you should go to a dyno to tune it..and there is absolutly no need to have it if you have basic bolt ons e.i I/H/E...your stock ecu will take care of those changes...the V-acf would be good if you had a cam, nitrous(not very efficent) or anything that would boost your HP significantly...to move your vtec around will only hurt your performance...the vtec crossover should be set where your Horsepower and Torque meet i.e needing a dyno...if your running nitrous with it you can set your full throttle fuel map to compensate for the added air but you still need a dyno to tune it...over all not worth the 300 bucks to look nice on your dash...unless you have the mod's that it would be usefull for... [hr]
[hr]The V-afc is not a toy...you should go to a dyno to tune it..and there is absolutly no need to have it if you have basic bolt ons e.i I/H/E...your stock ecu will take care of those changes...the V-acf would be good if you had a cam, nitrous(not very efficent) or anything that would boost your HP significantly...to move your vtec around will only hurt your performance...the vtec crossover should be set where your Horsepower and Torque meet i.e needing a dyno...if your running nitrous with it you can set your full throttle fuel map to compensate for the added air but you still need a dyno to tune it...over all not worth the 300 bucks to look nice on your dash...unless you have the mod's that it would be usefull for... [hr]
10-31-2002
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Rep Power: 0 No they do not intersect at the 5252...it will vary with the mods that you do...think about it this way if you add parts that give you 50 hp and 13ft pounds then it will intersect at a different rpm than if you have parts that will give you 100 hp and 20ft pounds.... etc etc..
11-01-2002
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[hr]Originally posted by: xblkcivicx
No they do not intersect at the 5252...it will vary with the mods that you do...think about it this way if you add parts that give you 50 hp and 13ft pounds then it will intersect at a different rpm than if you have parts that will give you 100 hp and 20ft pounds.... etc etc..[hr]
[hr]Originally posted by: xblkcivicx
No they do not intersect at the 5252...it will vary with the mods that you do...think about it this way if you add parts that give you 50 hp and 13ft pounds then it will intersect at a different rpm than if you have parts that will give you 100 hp and 20ft pounds.... etc etc..[hr]
Your horsepower and torque WILL ALWAYS cross at 5252 RPM.
The dyno converts torque to HP using the equation:
Horsepower= Torque*RPM/5252
So at 5252 you have HP=Torque*5252/5252 or HP=Torque
What you are looking for is the optimal point to change the cam profile from the lower cam profile to the high cam profile. This can become altered with performance parts. What you would want to do is dyno the car with VTEC off and find the HP and torque curves while on the low cam, then do it with just VTEC on, and find the point where the curves from the 2 cams cross.
There's plenty more involved than just this, but the basic point is that you need to find the place that optimizes the effeciency of the 2 cam profiles and it has nothing to do with the overall HP and torque of the engine.
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