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VTEC Crossover

Old 01-20-2012, 07:41 AM
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Hi all, I noticed just last week when I started my S2K in the morning that when I tried to crossover to vtec some sort of rev limiter kicked in at 6000 RPM. Ive realised that my car temp has to be at least 2 bars for the vtec to kick in. Is this just an isolated case or does this happen to all S2000s, Any info given on why this happens would be appreciated.

Thanks
Old 01-20-2012, 09:19 AM
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If it's cold it won't vtec, it's a bit like hitting a brick wall, rather sudden.
Old 01-20-2012, 09:21 AM
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Originally Posted by ChrisDaly
Hi all, I noticed just last week when I started my S2K in the morning that when I tried to crossover to vtec some sort of rev limiter kicked in at 6000 RPM. Ive realised that my car temp has to be at least 2 bars for the vtec to kick in. Is this just an isolated case or does this happen to all S2000s, Any info given on why this happens would be appreciated.

Thanks

Are you serious?

Surely some common sense in you tells you not to rev the thing when the engine is stone cold?!
Old 01-20-2012, 09:27 AM
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Originally Posted by ChrisDaly
Any info given on why this happens would be appreciated.

Thanks
It's to save you from yourself.

When you come back on here in a few months, the answer is because you let it run low on oil
Old 01-20-2012, 09:29 AM
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I have to agree it's common sense not to vtec when it's cold. I let mine run for a good 10-15 mins before revving it hard. You have to respect an engine that can rev to 9k
Old 01-20-2012, 09:40 AM
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9.5k if mase tunes it.
Old 01-20-2012, 09:44 AM
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its a rev limiter set by Honda to not allow the engine to use high rev's until the engine and oil is warm.

i have only used it once and came across it when trying to race a workmate home one evening and i completely agree to the hitting a brick wall statement,
Old 01-20-2012, 01:13 PM
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Originally Posted by Ultra_Nexus
Originally Posted by ChrisDaly' timestamp='1327077665' post='21335688
Any info given on why this happens would be appreciated.

Thanks
It's to save you from yourself.

When you come back on here in a few months, the answer is because you let it run low on oil
Old 01-20-2012, 01:33 PM
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It's related to oil pressure AND temperature IIRC. If either is too low then it won't engage VTEC. And as above, you shouldn't be near VTEC if the engine is cold. Mine never goes above 3.5k to 4k ( and very gently up to that) at the very most until the engine is properly warmed up.
Old 01-20-2012, 01:39 PM
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please delete this thread, its upsetting me

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