APex vafc

[rock_k]

Vtec controllers, How many of you guys have these, what do you think of them are they worth it? what else do they do apart form let you choose when vtec engages, are there any killowatt gains from these? new to these things

[type one]

they are used as a mild tuning tool - not just used to swap over vtec engagement points.

[sharik]

I had one previously on my TypeR DC2, and got it tuned and all. You feel that its smoother through the rev range, but in terms of POWER you wont feel a thing. If you want power, just get a PowerFC or Hondata (if u got da buks for it).

[Macros]

Quite a bit of power can be gained. FLYRYD gained around 10wkw from a tune.

[rock_k]

by tuning, what exactly did he do, how much would i be looking at for a hondata or powerfc, do these only apply to vtec models?

[fly_vti]

Quite a bit of power can be gained. FLYRYD gained around 10wkw from a tune.


how the hell can you get 10kw from a vtec controller man.. im not sayin it cant happen it just sounds bulls*t u know. 10kw is a very big diffence.

[sharik]

Quite a bit of power can be gained. FLYRYD gained around 10wkw from a tune.
No way you can get 10kw from a VAFC. Unless he put some other mods at the same time he tuned it, but 10kw is more of a PowerFC figure. Sorry to disapoint.

[pornstar]

lol sharik

so a motec would get about 25kws?

[EuroAccord13]

I got about 10kws @ the wheels with the VAFCii tuned. When I did it, I only had CAI and Zorst installed.....

[FR33K]

yeh well its coz u got ur car tuned with your new mods plus the vafc
u didnt gain 10kws with the vafc on its own...

[sivic]

and thats the whole damn point of tuning tools. to tune an engine which has been modified. that how you make the most of modifications.
how many instances do you see ppl getting a power fc or motec.. etc without at least first changing the exhaust or intake? not many becausre you aren't going to get much from retuning a stock engine.
you're unlikely to get 10kw from just an exhaust and intake, nor are you going to get 10kw from just a vafc. however, as mentioned, you can get it when the two work together which is not a bad gain.
and then there is the matter of the gains along the rest of the power curve, not just peak power.
the point is, i'm sure we've all got some form of modifiction done to our engine from an exhaust to a complete rebuild, and that these tuning toools are used to optimise these modifications. and by the sounds of it - yes kw gains can be made with vafc, especially when tuned with othe mods

[sharik]

Anywere you research about a VAFC, there is no factual or proff that a VAFC gives you significant power. It does help, and it is a piggy back for light tuned mods but does no increase power by an amount such as 10kw, morelike 5kw at the MOST. I have had it in my ITR before and a VAFC smoothens out (to a certain degree) the rev range, and help the car to not run lean/rich, that is all that is noticeable.
I suggest if someone wants to prove me or other people wrong about the vafc giving "10kw", I suggest the person "FLYRYD" to take the VAFC off and run the dyno and put it back on and dyno it. See what the difference is in Power.

This way it proves how much JUST a vafc does in terms of power, not functionality.

[panda[cRx]]

lol sharik

so a motec would get about 25kws?

yeah sounds about right, install 2 motecs and thats 50kw straight up:)

[sharik]

lol sharik

so a motec would get about 25kws?

Is that sarcasm? or are you serious? Its hard to know over the net. But if serious, then not exactly. It depends on the mods you have done, other than an ECU. And how the hell would I know what a motec would give you anyway? ive never done it, nor have I seen anyone do it.

[sivic]

i dont think 10kw is that unbelievable to get from a light modded K24 tuned on a vafc. just because you dont get that much from a B18C7. think about it, both engines making pretty much the same peak power but one is 2.4l and one is 1.8l. obviously the B18C is already tuned to a much higher level and is going to require more extensive tuning to achieve the same gains as the K24. Displacement DOES count for something.
as you stated in your post sharik - it depends on what mods you have done in regards to how much power ecu/piggyback tuning will gain. it also depends on the engine. you cant really compare two totally different engines. it would be like saying you will get the same gains from putting headers on a B18C as you would from putting a set on a D16

[SINISTR]

each engine also breathes differently and has different stock a/f mixtures - one might get better gains than another... so i agree - can't really say that 10Kw is impossible or possible... do it and find out... VAFC will always be retunable in case you change something in the setup - thats the beauty of it.

[dundas]

cbf reading it all, my mate had a VAFC on his accord, and did before n after dyno same day, full tune up and gained 5kw@wheels

[Apple]

is the VAFC only for moded vtec hondas? Or is it for NA as well? Just for manual or for automatic as well? I guess my question is, 'is there any point installing one on a gen5 accord auto?

thanks,
Alan

[EuroAccord13]

I reckon VAFC works best with N/A bolt on mods.. seriously modded cars will prolly get some Piggyback or Full Replacement ECU... As for VAFC in a stock engine, I don't think it's worth the money....

[dundas]

ok well my friends STOCK CD5 got him 5kw@wheels gain.
i guess ill let you decide :)

[Macros]

Dude, it was gained through dynotuning. Car was dynod pretune with 130fwkw. After tuning with the VAFCII it came up to 140fwkw.

Mods: http://www.ozhonda.com/forum/showthread.php?t=14613

[sharo]

Just wondering what are the differences between vafc and e-manage, do they do the same job? deciding which one to get for my base dc5 but again was told that e-manage cannot b used for base dc5. Or i should say not suitable. Dont know how true is that and hopefully someone out there can give me some advices. Plus what sort of enhance in power can i expect from the vafc2 together with moded cat and intake. Very much appreciated.

[dek]

Im looking to get one also, is it easy to tune one of these vafc ? or do you need to take it to some specialists to help you tune it up ?