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post #1 of 7 (permalink) Old 15th June 2008, 16:48 Thread Starter
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Vtec

Discussion thread for the Wiki page VTEC. Please use this thread only for discussing what should or should not appear in the Wiki article. If you would like to add a comment, click the Post Reply button.
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post #2 of 7 (permalink) Old 12th June 2009, 18:14
 
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It states about VTEC on the 1.8 petrol models that there's no performance "kick". I don't really know much about how VTEC works but I do find on my 1.8 EX that around 3500 there's a definite performance boost. Not quite a kick but I find under 3500 acceleration is sluggish, but once over that, especially at 50mph or higher, it's like the car is just taking off.

I know it's probably nothing compared to a Type R, but seems there's a performance boost of some sort there ?
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post #3 of 7 (permalink) Old 12th June 2009, 18:21
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Quote:
Originally Posted by deadkenny View Post
It states about VTEC on the 1.8 petrol models that there's no performance "kick". I don't really know much about how VTEC works but I do find on my 1.8 EX that around 3500 there's a definite performance boost. Not quite a kick but I find under 3500 acceleration is sluggish, but once over that, especially at 50mph or higher, it's like the car is just taking off. I know it's probably nothing compared to a Type R, but seems there's a performance boost of some sort there ?
Absolutely right ... no "kick" exactly ... it feels like the engine takes a deep breath and power \ acceleration does improve ...
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post #4 of 7 (permalink) Old 14th June 2009, 08:55
 
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Most probably because you start to get near the torque peak.
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post #5 of 7 (permalink) Old 12th August 2009, 13:25
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I'm not sure about the 1.8, but on the Type R the VTEC kicks in at around 5,400, and you can hear the engine note change as the lower cams switch to the upper cams. There is also a big kick too!
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post #6 of 7 (permalink) Old 14th August 2009, 11:03
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well I got a 1.8 CTS and when I change gears at around 3500 revs like derek riddell says: it feels like the engine takes a deep breath ( A great sounding grunt) and power boom it kicks off just love the sound it makes when VTec kicks in.
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post #7 of 7 (permalink) Old 15th August 2009, 00:20
 
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Originally Posted by CCC View Post
I'm not sure about the 1.8, but on the Type R the VTEC kicks in at around 5,400, and you can hear the engine note change as the lower cams switch to the upper cams. There is also a big kick too!
its actually a flat spot disguised as a power burst if youve seen dyno printouts for vteced cars there all the same theres a definate dip in power when it changes cams
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