S2000 Under The Hood S2000 Technical and Mechanical discussions.

Over-Rev Question?

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Old Dec 27, 2004 | 10:59 AM
  #61  
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actually your analogy is flawed.

The correct one would be.

You ate two pieces of candy and immediately worried that it caused a cavity so you went to the dentist for a cleaning and xrays that you really didn't nead because it takes a lot more than 2 peices of candy to cause a cavity. But it makes you feel better to spend the money on xrays, so more power to the dentist.

A valve adjustment, like a tooth cleaning is a good thing. You should have both of those done on regular intervals.
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Old Dec 27, 2004 | 12:53 PM
  #62  
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Originally Posted by krazik,Dec 27 2004, 12:59 PM
A valve adjustment, like a tooth cleaning is a good thing. You should have both of those done on regular intervals.
Can we leave this debate with this statement?

Analogy aside, it's not worth getting our tails in a knot over. He got close to redline, maybe went over, mayby not. Maybe there was damage, maybe not. He's OK with the 90 bucks for a valve adjust and a "free" inspection by Billman. Let's put this on the shelf and wait to hear back after the work has been done. At that time, we can all either give a big sigh of relief or do an "Oops".
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Old Dec 27, 2004 | 02:23 PM
  #63  
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Originally Posted by 240toS2k,Dec 26 2004, 09:21 PM
-__- if the motor was accidently over rev'd and wasn't kept there for a long time... the motor should be FINE.... I've hit rev limiters for almost every kinda 4 cylinder KA24DE, SR20DET, D15, D16, B16, B18... and the list goes on including F20C. Engines are not as weak as some people think. If you accidently hit the redline, more than likely, you'll be ok, the rev limiter is there to keep an accident from turning bad. So unless you just don't take care of your motor... ie never changes oil, ect... the motor should be fine.
hitting the rev limiter and a mechanical OVER-REV are two very different things you can bounce off the rev limiter all day if you'd like but Mis-Shift
( Mechanical Over-Rev) there is nothing to stop it . That is what slipstream444
was trying to say just incase you didn't know or understand.

I agree with Xviper lets just hope nothing happen to Bigsalgt's
Engine and then we can all smile.
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Old Dec 27, 2004 | 02:27 PM
  #64  
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Old Dec 27, 2004 | 02:32 PM
  #65  
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FYI-
IMO if you went from 6th to 2nd you wouldn't worry about your engine bro...you would be more concerned with your transmission and hope that you didn't leave the clutch on the freeway somewhere. If you over-rev I doubt there will be engine damage, if any at all. Honda motors are made to spin at very high RPM's and can take that type of thrashing.

If you were at 65mph...no worries mate.
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Old Dec 27, 2004 | 02:34 PM
  #66  
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Originally Posted by xviper,Dec 20 2004, 08:07 PM
Is this a pop quiz? OK, I'll bite.
Is it because #4 is the farthest away from the cooler coolant? By the time the coolant gets back there, it's the hottest it gets. Perhaps the #4 cylinder cooling jacket is always the hottest of all of them. Maybe that's why the temp sensor is located back there - to register the "worse case scenario"?

It might also mean that #4 is the closest to the downpipe of the exhaust manifold and the firewall which mean more hot air get's trapped there. When you're moving forward it's only safe to assume that the hotair is getting pushed there.

Hope this helps!
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Old Dec 27, 2004 | 07:46 PM
  #67  
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Originally Posted by BroInTheKnow,Dec 27 2004, 07:34 PM

It might also mean that #4 is the closest to the downpipe of the exhaust manifold and the firewall which mean more hot air get's trapped there. When you're moving forward it's only safe to assume that the hotair is getting pushed there.

Hope this helps!
This car has a factory header. There's no variation in placement...
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Old Dec 27, 2004 | 10:02 PM
  #68  
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Originally Posted by krazik,Dec 27 2004, 11:59 AM
actually your analogy is flawed.

The correct one would be.

You ate two pieces of candy and immediately worried that it caused a cavity so you went to the dentist for a cleaning and xrays that you really didn't nead because it takes a lot more than 2 peices of candy to cause a cavity. But it makes you feel better to spend the money on xrays, so more power to the dentist.

A valve adjustment, like a tooth cleaning is a good thing. You should have both of those done on regular intervals.
I like yours! If I had more time I could have worked out the kinks!
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Old Dec 29, 2004 | 12:19 AM
  #69  
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Originally Posted by BroInTheKnow
FYI-
IMO if you went from 6th to 2nd you wouldn't worry about your engine bro...you would be more concerned with your transmission and hope that you didn't leave the clutch on the freeway somewhere. If you over-rev I doubt there will be engine damage, if any at all. Honda motors are made to spin at very high RPM's and can take that type of thrashing.
If you went into 2nd gear from 75-80+mph, you will float valves and damage will occur. If the engine doesn't get damaged, (reved within capability) the transmission will certainly be fine.
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Old Dec 29, 2004 | 08:22 AM
  #70  
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RACER
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