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-   -   Set To Make VVT Look Old Fashioned (

THomas_Si 11-22-2009 06:10 AM

Set To Make VVT Look Old Fashioned
Fiat have come up with a new engine design that looks set to give all engines more power, more torque, less emissions, and better mpg, regardless of size, fuel type, or aspiration method.

Ingenious stuff, hopefully it will take off:D

MultiAir - The ultimate Air Management Strategy

RobertSmalls 11-22-2009 08:11 AM

Electro-hydraulic valve actuation. It allows almost any intake valve schedule you want, giving good torque down low and power up high.

BMW was playing with the idea a while back, and they made a gas engine that didn't need a throttle plate, because it can use the intake valves to modulate power. BMW's valvetrain doesn't appear to have made it to market.

It's a good idea, if it can be made reliable and inexpensive enough. I hope it catches on.

JasonG 11-22-2009 08:22 AM

Awesome !
I love it when race (F1,Indy) technology hits the street.

99LeCouch 11-22-2009 10:25 AM

Don't they already have this on production models?

THomas_Si 11-22-2009 01:01 PM


Originally Posted by 99LeCouch (Post 140955)
Don't they already have this on production models?

I think the Alfa Mito has it already.

gone-ot 11-22-2009 03:21 PM

...I noticed they used hydraulic actuation, wonder how long until electronic actuation becomes feasible?

...looks like it's mechanical-profile with hydraulic "coupling" (0-100%) between camshaft and value.

...wonder if ferro-magnetic oils (as currently used in 'adjustable' shocks) could do the samething electronically?

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