Yttrium Neutral Newbie April 30, 2004 Share April 30, 2004 (edited) OK I found out leow... What VCM does is it shuts down the rear bank of 3 cylinders by idling the intake and exhaust valves, running on 3 cylinders only during cruising. But here's the impressive part... the "active control" engine mounts then compress and extend out of phase with the vibrations caused by the change in crankshaft speed to dampen the resulting vibrations! and more.. there's even a speaker to produce an opposite phase sound to make the cabin quieter! Edited April 30, 2004 by Yttrium ↡ Advertisement Link to post Share on other sites More sharing options...
Seansene 1st Gear April 30, 2004 Share April 30, 2004 Wait, it is the new Honda 3-litre engine I was thinking about! Here's an article from www.motoring.co.za Honda's VTEC motors get even smarter June 18, 2003 TOKYO Link to post Share on other sites More sharing options...
Yttrium Neutral Newbie April 30, 2004 Share April 30, 2004 Yeah.. I read a similar article But you are right.. there are earlier cars with this concept.. one of them is Cadillac with their V8-6-4 engine from the early 80s. It would shut down 2.. and then 4 cylinders, cruising on the remaining 4. but users complained of a scary kick in the back when the 4 idling cylinders re-engaged when moving off after coming to a stop. Link to post Share on other sites More sharing options...
Yttrium Neutral Newbie April 30, 2004 Share April 30, 2004 If its an i-VTEC then it should have VTC which is what the "i" represents. In that case, it should then be a DOHC in order to implement the variable timing between the intake and exhaust cylinder valves ... but I'm just guessing. Link to post Share on other sites More sharing options...
Seansene 1st Gear April 30, 2004 Share April 30, 2004 Looks like we did our 'homework' at the same time! Two upcoming Chryslers will also be using V8 'shut-down' engines, with switchable FWD and RWD. But unsurprisingly, I'm still most impressed with Honda's solution Link to post Share on other sites More sharing options...
Hondacrv Neutral Newbie April 30, 2004 Share April 30, 2004 apa love handles braaaa...der? Link to post Share on other sites More sharing options...
Yttrium Neutral Newbie April 30, 2004 Share April 30, 2004 (edited) Count on the japanese to take an idea, refine it and put it into production when the others who introduced it first gave up on it. Edited April 30, 2004 by Yttrium Link to post Share on other sites More sharing options...
Hondacrv Neutral Newbie April 30, 2004 Share April 30, 2004 oh oh Link to post Share on other sites More sharing options...
Seansene 1st Gear April 30, 2004 Share April 30, 2004 Well, Honda isn't the world's largest producer of IC engines for nothing! Link to post Share on other sites More sharing options...
Vtim 3rd Gear April 30, 2004 Share April 30, 2004 yalor! this is something new to me ley Link to post Share on other sites More sharing options...
Vtim 3rd Gear April 30, 2004 Share April 30, 2004 I thought the 'i' part means the VTEC can be engaged on different rpms, depending on engine load, instead of the previous VTEC engines which will only engaged on a fix rpm Link to post Share on other sites More sharing options...
Vtim 3rd Gear April 30, 2004 Share April 30, 2004 I'm only guessing, could be wrong also Link to post Share on other sites More sharing options...
Hondacrv Neutral Newbie April 30, 2004 Share April 30, 2004 heh heh.. V6 = drink water.. Link to post Share on other sites More sharing options...
Vtim 3rd Gear April 30, 2004 Share April 30, 2004 mine current IL-4 also = drink water, 345km for 46L Link to post Share on other sites More sharing options...
Yttrium Neutral Newbie April 30, 2004 Share April 30, 2004 Not sure either.. for the i-VTEC implementation on the K20 engines, the "i" signified the variability of the phase of the intake and exhaust valves. but then again there's i-DSI etc which don't have the VTC feature... Link to post Share on other sites More sharing options...
Saaber Neutral Newbie April 30, 2004 Share April 30, 2004 blame your foot lah... Link to post Share on other sites More sharing options...
Hondacrv Neutral Newbie April 30, 2004 Share April 30, 2004 wah so bad ah? hm... Link to post Share on other sites More sharing options...
Bpfocus Neutral Newbie April 30, 2004 Share April 30, 2004 ...better check ...... your tank could be leaking ...... or someone may be siphoning off your gas while you sleep.... ↡ Advertisement Link to post Share on other sites More sharing options...
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