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Old 30 Oct 2007, 04:42 pm
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Default How can I tell when the VTEC engages when I'm driving my 99 Honda Civic EX?

At what point is VTEC is suppose to kick in? And how will I know?
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Old 30 Oct 2007, 05:21 pm
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It's always engaged, Vtec refers to the valve train. Vtec isn't some kind of turbo boost.
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Old 30 Oct 2007, 05:24 pm
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you will be on the road, trying to pass someone...and then you will go FLYING ahead! some people claim to have even gone back in time because it's so fast...but seriously, you can't tell. it's supposed to kick in when you floor it, but it's very hard to notice.
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Old 30 Oct 2007, 05:27 pm
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Depends on if it is DOHC or SOHC, you wont be able to hear it on the SOHC single cam but you should on the DOHC, also Vtec usually engages around the 5600 to 6800 RPM's ,if its not kicking in at all then it could be that you have low oil pressure or you might just need a tune up...
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Old 30 Oct 2007, 05:30 pm
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Ben W is an idiot, the VTEC engages at 5800 RPM. Since its an EX it has the D16Y8 SOHC VTEC. If you dont have a cold air intake you wont really hear it as much as feel it.
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Old 30 Oct 2007, 05:33 pm
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Ok let me set this straight. I am not verbally insulting anyone or making fun of they're answers. But VTEC does not kick in that late. It kicks in right at 5300 RPMS. 4700 if a controller is added.. On a stock vtec car you realllly have to listen to it. If you had a cool air intake, headers and exhaust you would be able to hear it a little better. Now lets say you have a B18 C1-R that beast will scream at you haha. DOHC is way better. Ever feel like getting a better engine go that way haha.
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Old 30 Oct 2007, 05:36 pm
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1. remove the air filter and leave the air filter box open 2. Start the car and warm up the motor3. after the engine is warmed then step down on the gas and reving it to about the begining of the redline on the TACH and listen you should here the engine sound change just before the 6000 rpm mark. It will sound like a high pitch blender sound kicking in. VTEC Was made for 2 reasons 1. better AIR / FUEL burning by scaveaging the combustion chamber at higher RPMS2. adding higher performance when needed (like for passing on the highways). On some engine models its harder to tell like the SOHC motorsBut on a B16 - B18 DHOCs you can hear it kick in when they hit the begining of the red line. For further info refer to the web site below this will show and let you hear when the Vtecs kick in. NISMO Ryda.
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Old 30 Oct 2007, 05:39 pm
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Acutal Vtec engages at 5000 for the D16Z6 and 5500RPMs for the D16Y8>honda-tech.com
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