A-VTEC; the patent
02-10-2007, 12:10 PM
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Hmm, I really wish I had the smarts and patience to fully read and understand what this is all about. Nick, care to summarise?
What problem is a-vtect solving?
Does it produce more power/torque more reliably than what, a BMW?
Is this to say BMW is the currently leader in VVT tech, and Honda is catching up / raising the bar?
What problem is a-vtect solving?
Does it produce more power/torque more reliably than what, a BMW?
Is this to say BMW is the currently leader in VVT tech, and Honda is catching up / raising the bar?
02-11-2007, 04:48 AM
#13
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Originally Posted by trinis2001,Feb 10 2007, 09:10 PM
Hmm, I really wish I had the smarts and patience to fully read and understand what this is all about. Nick, care to summarise?
What problem is a-vtect solving?
Does it produce more power/torque more reliably than what, a BMW?
Is this to say BMW is the currently leader in VVT tech, and Honda is catching up / raising the bar?
What problem is a-vtect solving?
Does it produce more power/torque more reliably than what, a BMW?
Is this to say BMW is the currently leader in VVT tech, and Honda is catching up / raising the bar?
Having a butterfly throttle blocking the air intake makes a petrol engine very inefficient.
If you lose it & use the valves instead, Honda reckon a 13% reduction in fuel consumption, better emissions and you can fix the (deliberately) lousy torque of many binary-VTEC engines, if you want to.
The problem has been to make an infinitely adjustable valve lift & make it reliable and quiet.
Valvetronic was there first, but it might be wear-prone & has other flexibility disadvantages over A-VTEC.
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