A-vtec

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i don't think this is whats in the fit
i don't think its in production yet

i thought there were other constant variable systems that just BMW
didn't lambo or ferrari have a continually variable valve system?
 
reckedracing said:
i don't think this is whats in the fit
i don't think its in production yet

i thought there were other constant variable systems that just BMW
didn't lambo or ferrari have a continually variable valve system?
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Ferrari's variable valve system is a result of the valves being bent, loose and out of lash every 10 miles.
 
Wowzor.
With all that added complexity to the head, I would think it'd be a lot simpler to make the valves actuated by electronic solenoids controlled by the ECU. :shrug2:
WTF do I know.
 
Aura (Makers of the speakers and AuraGen alternators) makes a solid state valve head. (Well.. solid to the solenoids)

But when you think of it, it's a speaker. 8,000 hz ? Why not ?
 
Injectors can pulse at those RPM's. Just scale it up a bit.
 
The A-VTEC probly won't add much over regular VTEC, but a solenoid activated system would be WAY lighter- no cams, rockers, cam pulleys, timing belt, plus all the material in the head used to support the cams. Come on Honda, DOOOO IT!
 
But the elimination of throttling losses and the total control of lift and duration certainly makes Honda’s claims of double digit gains in fuel economy over existing Honda engines believable. And, even in focused economy application, I see no reason for Honda to sacrifice any top end power. In fact, I foresee low and midrange torque gains with modest increases in high rpm power as being completely reasonable.
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i think this will be a big improvment over vtec
 
I meant that it wouldn't add much WEIGHT. The performance/economy gains would obviously be drastically improved.
 
klyph said:
Wowzor.
With all that added complexity to the head, I would think it'd be a lot simpler to make the valves actuated by electronic solenoids controlled by the ECU. :shrug2:
WTF do I know.
Click to expand...

They can make an acutator to do that, but to get them that fast with that much force against a spring would require alot of power. More electrical power would require a larger alternator. Then there is the reliability part, probably need bigger coils, the solenoids will get very large. Honda probably wants a simple, lightweight and reliable design.
 
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