Had to post this, I may be wrong, or missunderstood what was told to me, but

I have been told by a Ford Tech that they ( FORD ) are not yet utilising the VCT feature on the BA twin cam yet. It is still under developement, and the cams, atm work together. That is, not variable..

My understanding of VCT is that either cam can be adjusted individually to suit optimum power/torque curves, on the fly, by the onboard ECU.

He also tells me that once completed, ECU's will be flashed on there next service at Ford, and the gains would be in the vicinity of 20kw

This is not just 'a guy'. He is a good friend of mine and the one I reccomend works on my car at service..

PLEASE correct me if I am wrong/mislead/misunderstood on this, as it's only my understanding.. but I did clear it up with him, and he assures me this is the case, as of about 2 months ago..

ANYONE???

This is not just 'a guy'. He is a good friend of mine and the one I reccomend works on my car at service..

PLEASE correct me if I am wrong/mislead/misunderstood on this, as it's only my understanding.. but I did clear it up with him, and he assures me this is the case, as of about 2 months ago..

ANYONE???

Well, you're telling the story.

I believe that the hardware is in place. The PCM is not able to drive it though in the xr6turbo.

I thought that it had more to do with the lack of processing power to perform the extra operatations was the reason why they cannot use the VCT

macka

ok leme clear something up.

The BA DOES use VCT, but varies the timing of both cams at the same time.

What it doesn't do is fully independant duel VCT.

Yes he is correct, the hardware IS THERE, it simply isn't being utilised....

engine hardware is there and so also pcm capabilities as I have been informed as amatter of fact they only swithch both on at the same time to a pre set point and are not varying the timming just switching!

the wonders of proper pcm / aftermarket tunning!

what will we see next?

who knows maybe one day one of us tuners will master the art of vct?

The VCT system is fully mapped in both the 240T I6 engine and the 3V 220 V8. CAPA/SCT Advantage has a load vs rpm table in which the camshaft timing can be advanaced or retarded to give the required result. It is not just a 'switch'

The VCT system is fully mapped in both the 240T I6 engine and the 3V 220 V8. CAPA/SCT Advantage has a load vs rpm table in which the camshaft timing can be advanaced or retarded to give the required result. It is not just a 'switch'

I think in dynowogs funny way he actually meant that (even if it totally didn't sound like it). He just means that electronically, the cams are locked together, and not fully independant.

The BA DOES use VCT, but varies the timing of both cams at the same time.

What it doesn't do is fully independant duel VCT.

<{POST_SNAPBACK}>

Street Tuner,

in your opinion/experience, which would give more gains, camshaft timing or ignition timing?? or a combination of both?

How much of a gain can be had by adjusting the cam timing ONLY. You would have first hand experience at this I assume??

Is it more beneficial to adjust ignition timing only?

I'd like to see a dyno graph, for curiousity, of a stock T or Foon, with appropriate air/fuel and then with only ignition timing and then with only VCT timing.

I am aware everything goes hand in hand to get the best results, but you get my drift?

This is only to see the benefits of vct on an engine, reason being, my experience with cam gears, results have been minimal..

Maybe I am on the wrong track and the main advantage is it can shift the power band more to where it is required to take stresses off the driveline etc, but don't you just do that with ignition timing?

I'm not a tuner, far from it, but I have seen it done, so that makes me an expert yeah??

One other thing to realise is that Ford would not have wanted to implement the variable cam timing. If they did implement the variable cam timing, it would increase low down torque which is NOT what they want to do given the manual gearboxes and auto transmissions and the risk of destroying them.

The car is powerful and torquey enough without utilising the fully independent cam timing feature. Another thing to remember is that they need room for further engine torque/power outputs when a new series is due - utilising the fully independent cam is a simple way to do this.

Ross