04-23-2008, 05:49 PM
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#6 (permalink)
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Senior Member
Join Date: Feb 2006
Location: San Francisco
Age: 26
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Quote:
Originally Posted by Dickotine
Well if im not mistaken, our vtec disengages only after 5500rpm's and thats when the engine goes into normal mode. ur Vtec (i think) only engages between 2500 and 5499rpm's for fuel economy. anything over 5500rpm's its completely off. The Vtec cams open up mid-open at 3500rpm's and fully open after 5500, de-activating V-tec. I can be wrong, but this is how i understand it.
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It's 1000-3500 RPM.
Civic 1.8L iVTEC chart
Last edited by av911; 04-23-2008 at 05:50 PM.
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