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Car & Driver comments on 2004 S2000

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Old Sep 5, 2003 | 06:54 AM
  #51  
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Originally posted by BrotherRex
For all those who are rev happy. Peak hp on the existing motor is 8300rpm and torque peaks long before that- not at the redline 9k. There's a cliff effect after 8300. You gain nothing except more wear and tear on your precious little engine by taking it to 9k. Is that what you want? Reaching peak hp and torque on this engine a little sooner and for a longer duration is a good thing. I don't care how you slice it. Go talk to an automotive engineer if you need further convincing.
Damn, talk about a combative post! Well there will be the same cliff effect after 7700 rpm with the new engine. So let's compare apples to apples here. Are you saying you won't ever rev your S2200 past 7700 rpm? Because if you do "you gain nothing except more wear and tear on your precious little engine".
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Old Sep 5, 2003 | 06:59 AM
  #52  
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Originally posted by BrotherRex
You gain nothing except more wear and tear on your precious little engine by taking it to 9k. Is that what you want?
So where in the RPM band do you shift for maximum acceleration?
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Old Sep 5, 2003 | 07:04 AM
  #53  
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Originally posted by StrangeDaze
So where in the RPM band do you shift for maximum acceleration?
It depending on the gearing on the current gear versus the next gear. If shifting at 8300 means you'll be below the VTEC point in the next gear (after you shift) then it makes more sense to rev further past 8300 so after you shift you remain in the VTEC range. BrotherRex seems to ignore this in his arguement.
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Old Sep 5, 2003 | 07:08 AM
  #54  
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Which is exactly why I am curious where he shifts, since "You gain nothing except more wear and tear on your precious little engine by taking it to 9k."
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Old Sep 5, 2003 | 07:16 AM
  #55  
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Originally posted by StrangeDaze
Which is exactly why I am curious where he shifts, since "You gain nothing except more wear and tear on your precious little engine by taking it to 9k."

I don't think you can say at this point if there is any more wear and tear on the older engine shifting at 9000 or the newer stroked out version shifting at 8500. They will both have their own particular stress points related to redline.
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Old Sep 5, 2003 | 07:19 AM
  #56  
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Originally posted by ttb
how you figure more displacement is good?
I assume more displacement means more power or torque, which is good. However, your point is understood. More displacement could be good if it brings more power/tq with no downside (lower redline, etc). If Honda said it was a 2.2L with more tq, same HP, better tq curve, same redline - the additional displacement would be a good thing.
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Old Sep 5, 2003 | 07:24 AM
  #57  
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[QUOTE]Originally posted by STL
[B]It depending on the gearing on the current gear versus the next gear.
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Old Sep 5, 2003 | 07:28 AM
  #58  
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hmmmmm...

maybe they'll rename it the prelude?
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Old Sep 5, 2003 | 07:48 AM
  #59  
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[QUOTE]Originally posted by bjohnston
[B]

Yeah, I haven't studied dyno sheets enough to know whether there is a sharp drop-off of power after the peak, but if there isn't, then it makes sense to hold the gear as long as possible (i.e. to redline) so that after the up-shift, you are as close to the power peak as possible.
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Old Sep 5, 2003 | 07:54 AM
  #60  
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Originally posted by SJSHARKS


If you look on page three there is a dyno test on an S2000.

The torque(pulling power) at 9000 is down to 110.

At redline, all you are doing is making a lot of noise.
Page 3 of what? The torque at 9000 doesn't matter. What's important in the upper RPM range is h.p. You are correct that torque is "pulling power," but it gets you off the line quickly at lower RPM. H.p. determines speed in the upper RPM range.
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