Our family car is a 2003 Honda CRV. It comes stock with a 160 hp 160 ft-lb L 4 with DOHC VTEC. When you can it (esp at highway speeds) you can feel the VTEC kick in at around 4200-4400, but theres no sound.... my Mazda Protege sounds more like a vetec at four grand than this thing. Does Honda purposely dampen the sound coming off of their VTEC systems? 'Cuz they shouldnt. its a beautiful sound.
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There is a version of i-VTEC that only adjusts camshaft timing & not lift.
http://www.sportcompactcarweb.com/te...c_civichybrid/ "Perhaps most significantly, the K20A2 employs a more sophisticated i-VTEC system in conjunction with more aggressive cams. There's a lot of confusion of the differences between the two engines' i-VTEC systems, so here's the straight poop. On both cars, i-VTEC really consists of two features: VTC (Variable valve Timing Control) and VTEC (Valve Timing and lift Electronically Controlled). VTC, in both cases, is simply a hydraulically controlled adjustable cam sprocket that varies intake cam timing on the fly depending on engine speed and load. VTC does not affect the exhaust cam. It's the VTEC portion of these systems that differs. On the K20A2 (RSX Type-S), VTEC means there's a low-rpm set of cam lobes and a screaming, high-lift, long duration high-rpm set of cam lobes both carved into the same camshaft. At about 6000 rpm, the rocker arms stop following the wussy little low-rpm cams, and start following the big ones. This is the system that made VTEC synonymous with high-output, 8000-rpm monsters."
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my friend has a civic si/ivtec, and he says he can hardly hear the ivtec kick in compared to a lude.
There is a version of i-VTEC that only adjusts camshaft timing & not lift.
http://www.sportcompactcarweb.com/te...c_civichybrid/ "Perhaps most significantly, the K20A2 employs a more sophisticated i-VTEC system in conjunction with more aggressive cams. There's a lot of confusion of the differences between the two engines' i-VTEC systems, so here's the straight poop. On both cars, i-VTEC really consists of two features: VTC (Variable valve Timing Control) and VTEC (Valve Timing and lift Electronically Controlled). VTC, in both cases, is simply a hydraulically controlled adjustable cam sprocket that varies intake cam timing on the fly depending on engine speed and load. VTC does not affect the exhaust cam. It's the VTEC portion of these systems that differs. On the K20A2 (RSX Type-S), VTEC means there's a low-rpm set of cam lobes and a screaming, high-lift, long duration high-rpm set of cam lobes both carved into the same camshaft. At about 6000 rpm, the rocker arms stop following the wussy little low-rpm cams, and start following the big ones. This is the system that made VTEC synonymous with high-output, 8000-rpm monsters."
It's probably this engine you have
best answer yet
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