rexracer

i believe it was ford that created the first variable valve timing engine, but it flopped and then years later honda did and and was successful with it

JD

Heres something new for ya
http://www.vvt.150m.com/

J-SMITH69

zetec is just variable cam timing. it doesn't switch lobes. focus aren't made to be high revving. they dont need to switch lobes, but the cam timing changes help a little.

honda did not invent variable cam timing, or variable lobes. they just made it marketable in a car first.

like hotrex said vortec has nothing to do with variable cam timing.

i think they'd have to do a little more than that

Qwiksand

Zetec is the engine family name. This line of engines has been around since the late 70's/early 80's over in Europe. Some Zetec engines have VCT (Variable Cam Timing)which is more of an emissions devise than a performance device as there is no EGR on the VCT equipped engines. VCT is an oil-pressure operated mechanism that allows advancing/retarding on the exhaust cam in my car (Escort ZX2). DOHC, 2.0, 130 hp at the crank from the factory.

But, the Zetec is dying out in favor of the Duratec, so this argument is moot.

88crxSi

zetec engines are variable valve timing in the SVT focus. and yes, with in 2 years the zetec will be no longer and will be replaced by the duratec.

slowcrx

i could be wrong but i thought porsche was one of the first out with variable valve timing. that was in 1986 i think.

KFB

well i guess i was wrong and Ford isn't copying Honda.
but i will have to research a little before i completely agree.

imadouche

read the 15 posts above and your research is done bitch. you're wrong