S2000 Under The Hood S2000 Technical and Mechanical discussions.

VTEC question

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Old Dec 3, 2002 | 09:46 AM
  #11  
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Originally posted by jojipoji
why would anyone redline thier car before it was fully warmed up...man oh man. dont mean to flame but cmon people use your heads!
Who said anything about redline? He is obviously a new owner, who was curious about why the rev limiter kicked in at 6200 RPMs (mine rev limitter kicks in hard at 7000 RPMs when its cold). Give him a break.
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Old Dec 4, 2002 | 03:57 PM
  #12  
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I'm not even going to attempt this on my S2000, but on my RSX, it would still redline before operating temperature, but would simply not "cross over" to VTEC.

You should always keep it under about 4,000 RPM when the car is cold...
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Old Dec 4, 2002 | 04:03 PM
  #13  
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Mine didn't switch to "fast cam" mode, and it would also screech tires at 7000 rpm (cut the engine).
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Old Dec 4, 2002 | 04:13 PM
  #14  
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I recently added a V-AFC, and it seems to defeat this safety measure. I have lowered my VTEC engagement point to 5600 RPMs, so now it engages VTEC at 5600 regardless of my coolant temperature. Has anyone else noticed this?

I don't try to redline while the engine is cold, but logic suggests that as long as you aren't "ragging" on the engine, loading it up a bit more will reduce the number of cycles it will have to turn before it is "warm". The sooner the oil warms up, the sooner it will begin protecting. When my engine is cold, I try to keep it in the upper 5K RPM range.
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Old Dec 4, 2002 | 05:21 PM
  #15  
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I always try to idle for about 1 minute before moving (That's pretty easy, since i have to update my log book, but anyway!)

Then I try to keep the revs below 4000 until I get 3 bars on the temp sensor...

I'm not sure why anyone would want to push their engine hard when it's so cold - not even to "Warm it up".
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Old Dec 4, 2002 | 05:37 PM
  #16  
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maybe he lives right off the hwy and needs to VTEC to keep the fools from hitting his ass end and destroying his car.
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Old Dec 5, 2002 | 08:33 AM
  #17  
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I don't know why anyone would want to "push their engine hard when it's so cold" either. However, I don't think running the engine at just over 1/2 its design limit is pushing hard. I think that letting the engine idle for 30 seconds, then driving it in the 5K range will warm it up with LESS wear than letting it warm completely at idle. The oil is heated by the combustion and friction that is produced while the engine operates. If this combustion and friction is spread out over a longer period of time, it will take even more combustion and friction to reach normal operating temperature.
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Old Dec 5, 2002 | 08:37 AM
  #18  
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The first time it happened to me, I almost cried. I thought I blew it or something. The temp. guage was at 2 bars, and I had to pull into heavy traffic. Having bought my car used without a manual, it was a surprise to me, but I figured it out. It kills hard at about 6800 rpm when cold. I dont even think about trying that again.
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Old Dec 5, 2002 | 09:21 AM
  #19  
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the vtec is never even addressed in my owner's manual. my02. wonder why?
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