Comments on: Honda files Advanced VTEC patent

By: mits27

mits27 — Tue, 17 Apr 2007 22:43:12 +0000

From vtec, i-vtec, now it is AVtec, maybe the next honda city going to use

i-vtec since i-vtec is considered normal tech for honda.

By: topgunthang

topgunthang — Tue, 17 Apr 2007 22:11:01 +0000

i see. hopefully the rumoured 2.5 litre vtec unit of the new integra R uses this.

By: proton GL

proton GL — Tue, 17 Apr 2007 17:20:06 +0000

just before the valve lifted,

–cam hit another adjustable cammer (for throtteling) then rocker arm and lastly the valve,

–compare to, cam hit tappet and valve,(butterfly throttled)

which is lighter, less mechanical ?,

this is why M Power never use valvetronic,

instant responce? -individual butterfly is the answer.

anyway i dont see variable lift is bad,

By: happymeal

happymeal — Tue, 17 Apr 2007 16:51:19 +0000

ask bmw regardiing the camless valves.

i think was something to do with the electrical load for so many actuators, so there need to be a total revamp to the automotive electrical system as well.

Valeo and Ricardo is the keyword…i think paul did a report on this before.

http://paultan.org/archives/2005/07/14/camless-so…

habuk pun tade on the new C – class…

By: Charger

Charger — Tue, 17 Apr 2007 16:31:01 +0000

What happened to the research on camless valves?

By: aesthari

aesthari — Tue, 17 Apr 2007 15:51:28 +0000

Gosh, I'll skip the technicalities, I'm interested in the results though.

By: transformer

transformer — Tue, 17 Apr 2007 15:12:58 +0000

for an average joe, i just want to know how much EFFICIENT is this engine(power and consumption) and RELIABILITY(include maintenance cost)….

and most importantly its pricing factor percentage into the car!

By: kei9

kei9 — Tue, 17 Apr 2007 14:44:40 +0000

too damn lots of tech specs!

By: happymeal

happymeal — Tue, 17 Apr 2007 13:56:24 +0000

technical mumbo jumbo… nice

paul, is it legal to copy n paste articles here?

a lot of complex systems just to improve fuel economy and refinement. this totally removes the VTC mechanism at the pulley end, and also the hydraulic pins to engage the hot cam profile. instead replaced by electric motor actuation.

this is 1 high tech single cam drivetrain……

By: pheonix_comet

pheonix_comet — Tue, 17 Apr 2007 08:41:36 +0000

http://www.celicas.co.uk/VVTLi.htm found some info from this page

By: pheonix_comet

pheonix_comet — Tue, 17 Apr 2007 08:30:08 +0000

last time i did read about TYT VVTL-i they have the moving graphic on the parts.

at the time being the things look the same, it makes the valve open more wide.

By: exodust

exodust — Tue, 17 Apr 2007 06:06:14 +0000

Haha, not thats some advanced stuff right there! I can't understand half of what was said