vtec controller

Post by **Drax** » Wed Aug 29, 2012 1:51 pm

how do they work? can you just programme it yourself or does it an expert hand? and i see many different makes and models, any particular difference? plus, i have a spoon ecu (not the add-on chip), would it work with it or make no difference.

thank you

Post by **lewd lude lover** » Wed Aug 29, 2012 1:54 pm

some are a knob, some are buttons. some like the vafc has it as a function etc.
to do it 'properly' you should have you vtec change over set as part of a tune. this will ensure you get the best out of both cams.

otherwise you can mess about with it and see 'how it feels' a tried and tested tuning method

Post by **Merlin** » Wed Aug 29, 2012 2:00 pm

If its just the controller I wouldn't bother using it. Like LLL says without the tuning its next to useless. The Spoon ECU has VTEC set to 5K but is tuned to make use of it. Lowering VTEC further more than likely wont make any more power, probably it will loose power.

bennyboy · Post by **bennyboy** » Wed Aug 29, 2012 2:05 pm

^This.
I have a VAFC2 which I fitted myself and dropped the VTEC to about 4,500k, which is actually a pretty good place for a relatively standard lude.
That said, when I got Rich at PAW to set it up (eventually) the difference was noticeable. I did have a few other mods though such as adjustable cam gears, but it's really the air/fuel mix being tweaked for a little more power.

Mine will actually be up for sale for £100 as soon as I've removed it, as I have the Hondata setup these days.
Give me a shout of you'd like any more info/dibs etc.

Post by **Drax** » Wed Aug 29, 2012 2:17 pm

it's just i saw this old skool looking one on fleabay and wondered if it was worth it or not - seemed quite cheap but maybe thats cos its as old as me

seems like the one you were talking about with just 'buttons' LLL, cheers for the advice Merlin, and ill keep that VAFC2 in mind benny thanks

http://www.ebay.co.uk/itm/271041214847? ... 500wt_1203

Post by **Merlin** » Wed Aug 29, 2012 2:23 pm

If this is the same unit (which I think it is), it might be worth a punt as it looks like you can adjust fuel etc.. Its not just a knob.

http://www.inlinefour.com/datsysconvte.html

Could be a older "version" of the VAFC?

Post by **Drax** » Wed Aug 29, 2012 2:56 pm

Merlin wrote:If this is the same unit (which I think it is), it might be worth a punt as it looks like you can adjust fuel etc.. Its not just a knob.

http://www.inlinefour.com/datsysconvte.html

Could be a older "version" of the VAFC?

bought! thanks for the advice bud, i can always sell it on if it's no use to me

Post by **Drax** » Thu Nov 01, 2012 3:32 pm

has anyone ever had the instructions to set one of these up? im emailed inlinefour but not heard anything.
Is it something maybe P.A. are able to tune in?
I have a mate to does tuning on a rolling road but doesnt want to it without the instructions.

http://www.inlinefour.com/datsysconvte.html

A1ex · Post by **A1ex** » Thu Nov 01, 2012 3:41 pm

Not a complex thing to tune. You need a wideband o2 sensor to do it properly tho.

From memory you use the o2 sensor to adjust the fuel trim to get the optimum AFR at each part fo the rev range (13:1 I think). I'm sure I remember reading that the H22 runs rich higher up and you can trim 4-5% off the fuel mix and get a few extra horses from it. Will try and find the link to it later for you.

There aren't any other things to tune with it so pretty straight forward

Post by **Drax** » Thu Nov 01, 2012 4:02 pm

A1ex wrote:Not a complex thing to tune. You need a wideband o2 sensor to do it properly tho.

From memory you use the o2 sensor to adjust the fuel trim to get the optimum AFR at each part fo the rev range (13:1 I think). I'm sure I remember reading that the H22 runs rich higher up and you can trim 4-5% off the fuel mix and get a few extra horses from it. Will try and find the link to it later for you.

There aren't any other things to tune with it so pretty straight forward

excellent yes please bud

ill also look at buying a wideband o2 sensor for a 4th gen now