ECUs that can control VVT

[Sophia_Bush]

as above aftermarket ECUs that can do VVT talking oil pressure switch activated VVT same principle as VTEC

[axsaxoman]

there are loads of ecus that can do that --but without more info on exact usage and type of control you wish to do

all i can do is list the obvious choices ,dta ,omex ,gems ,etc but not the very basic units

[Sophia_Bush]

et3j4 1.4 16v engine john it has vvt as standard. Just need something to get it working, its going to have boost anyway could always lock the vvt off which is easy done

[adamskiTNR]

The problem with locking the vvt off is that you will have to choose between the low and high cam.

[axsaxoman]

you will still ned a stand alone --so why not get the right one and keep your options open --dta s60-cheapest and simplest +quickest to tune--thats what my choice would be --used them on honda typer with s/c ,which not only has vetec ,but variable inlet cam timing as well.
when your ready i wll give you a great price for one
and by the way vvt is not the same as vtec --or it doesn,t have to be

[Sophia_Bush]

interesting john will keep you in mind defo

ad if I had to do that it would be on high lift allt he time

[freddy6868]

What are the main differences between the vtec and the vvt as my mate has a yaris and he says the vvt is exacally the same as the vtec but i heard they are totally different.

[titchster]

What are the main differences between the vtec and the vvt as my mate has a yaris and he says the vvt is exacally the same as the vtec but i heard they are totally different.

VVT just adjusts the actual timing (retard or advance), whereas VTEC actually uses a separate cam that's higher lift (think standard VTS vs Catcam 708 etc), and iVTEC uses that mixed with being able to adjust the timing on the inlet side too.

[adamskiTNR]

Vtec works by having 3 lobes where you would have one. The two on each side are low lift and have rockers for each. When it switches a third rocker is actuated by oil pressure onto the high lobe in the middle, making the low lift ones redundant. When the oil pressure drops the high lift rocker is lifted away and the low lift rockers come back into contact with their respective lobes. Just youtube it. It's really simply.
The best system is bmw's valvetronic, as it is infinitely adjustable.