2006+ Honda Civic Forum banner

1 - 14 of 14 Posts

·
S2000 AP1
Joined
·
595 Posts
Discussion Starter #1
Afternoon All,

I quite fancy the idea of changing to point at which the power cam comes online....considering this what thoughts, opinions,advice and comments do you have with respect to having just a Vtec Controller as opposed to going down the Group N ECU reflash.

I guess with the ecu you have the option to revise A/F setting ect...?
Would just a Vtec Controller be a silly idea?

:vroam:
 

·
Registered
Joined
·
24 Posts
Afternoon All,

I quite fancy the idea of changing to point at which the power cam comes online....considering this what thoughts, opinions,advice and comments do you have with respect to having just a Vtec Controller as opposed to going down the Group N ECU reflash.

I guess with the ecu you have the option to revise A/F setting ect...?
Would just a Vtec Controller be a silly idea?

:vroam:
you cannot revise A/F setting ect with the group n ecu. the tune is fixed.

the vtec controller will allow you to modify such settings, however installing it will probably be a bit of a challenge considering the location of the ECU.
 

·
S2000 AP1
Joined
·
595 Posts
Discussion Starter #3
Thanks Mr Thanh, Ok I see...so what benifits are the ECU providing over a £250 Vtec Contoller...
 

·
The Property Man
Joined
·
6,060 Posts
i was told to stay well away from a vtec controller because itll lose power because the A/F is set...my cousin did the same to his accord r and he has lost power too...
 

·
S2000 AP1
Joined
·
595 Posts
Discussion Starter #5
Cheers fat4y..........can anyone else confirm A/F can or cannot be changed with just a Vtec Controller as there appears to be mixed thoughts...?
 

·
Premium Member
Joined
·
1,656 Posts
you lose a little power yes, but thats because the engine is trying to do the same job that would normally occur at 5000rpm at 3000rpm..
i was after a vtec time changing device...didnt realise they had made one for the new civics yet..
can you post a link?
 

·
Registered
Joined
·
610 Posts
blazingTYPE-R : blogsite: AFC NEO

I presume this would work on the FN2 aswell

:)
AVOID AVOID AVOID!!!!

Vtec controllers do not work on Honda K20 engines. FACT!
It will throw up an ecu error and will go into limp. Could also damage something.

The way they work is to force the vtec valve. Thing is the ECU knows it shouldn't have changed over so faults out. Cheap and nasty.

They worked fine on the old B series engines but not on the K20's.;)
 

·
Registered
Joined
·
610 Posts
Fact? check your sources. The Apexi VAFC II works fine on the K20, and does allow for AFR adjustment (I had one in my dc5).

I fitted a couple and set them up for "insistent" customers to prove they don't work.

Yes you can adjust fuelling but only at 500rpm increments but you cannot adjust vtec point and make it work long term.

Don't skimp, get it remapped properly with an aftermarket ECU or at least an AEM FI/C controller.
This is how we are controlling fuelling and ignition for FN2's with superchargers and camshafts until a fully mappable ECU is available BUT you are still stuck with preset ECU vtec changeover or it throws up an error and goes into limp.
 

·
Registered
Joined
·
125 Posts
Fact? check your sources. The Apexi VAFC II works fine on the K20, and does allow for AFR adjustment (I had one in my dc5).
I had one of those in my ep3 type r, lowering the vtec point worked but never made any difference, ie the the vtec solenoid valve opened to hi cam but because the air fuel ration hadn't changed it created a dead spot then carried on as normal when you reached the original vtec point.

Looked good thats bout all I can say bout it really

 
1 - 14 of 14 Posts
Top