S2000 Talk Discussions related to the S2000, its ownership and enthusiasm for it.

04 with 9k redline?

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Old Sep 27, 2004 | 09:42 AM
  #51  
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Originally Posted by Cyclon36,Sep 27 2004, 09:15 AM
4. So I can say I'm the only one with a 2.2 and 9k red.
I wouldn't get your hopes up, this has already been done(both on the F22C and a stroked F20C)
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Old Sep 27, 2004 | 09:51 AM
  #52  
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Originally Posted by Incubus,Sep 26 2004, 12:26 PM
No disrespect, but...

Don't ask for sources or confirmation, but there is a flying Honda S2000 in North America; it is from the future.

I'm just saying that, without sources, no one knows what to think.
I am saying that American Honda in Southern California has a 2004 Honda S2000 with a 2.2 w/ a usable 9K redline. It does not mean that after 8K that the 8100-9000 actually still have a linear power band, and could drop in power, since the 2.2 peaks much earlier than the 2.0. (that's why its in testing phase, and seeing how the 9K affect/Effects of the 2.2 motor.

BC
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Old Sep 27, 2004 | 10:24 AM
  #53  
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Very interesting BC.

I wonder what an 04 would make on the dyno with an 9k redline? The extra revs would certainly increase the 'area under the curve' and the extra time in Vtec would be nice. I personally think that the 2.2 could handle the extra little bump in revs without much trouble. Maybe long term reliability would be reduced a little but I don't plan on putting 100k miles on mine.

JeffA
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Old Sep 27, 2004 | 10:45 AM
  #54  
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Originally Posted by Back-cracker,Sep 27 2004, 10:51 AM
since the 2.2 peaks much earlier than the 2.0
No, it doesn't. Mine makes peak horsepower at fuel cutoff at 8200rpm.
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Old Sep 27, 2004 | 10:47 AM
  #55  
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[QUOTE=kitwetzler,Sep 27 2004, 10:45 AM] No, it doesn't.
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Old Sep 27, 2004 | 11:36 AM
  #56  
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Originally Posted by Av8ing1,Sep 27 2004, 01:24 PM
Very interesting BC.

I wonder what an 04 would make on the dyno with an 9k redline? The extra revs would certainly increase the 'area under the curve' and the extra time in Vtec would be nice. I personally think that the 2.2 could handle the extra little bump in revs without much trouble. Maybe long term reliability would be reduced a little but I don't plan on putting 100k miles on mine.

JeffA
That is a very ignorant statement.

You "think" it could handle it. Did you read anything else posted in this thread? 800 RPM might sound trivial to someone that knows nothing about engines, but trust me, it isn't.

I wish somebody could come up with some actual figures so we could do some calculations to see what it is we are really talking about.
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Old Sep 27, 2004 | 01:22 PM
  #57  
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What kind of numbers are you looking for? The numbers Honda published for the 2004 model in the S2000 brochure are: bore and stroke (mm) of 87.0 x 90.7, a compression ration of 11.1:1, 240hp @ 7800, 161 'lbs @ 6500, displacement = 2157cc. Gear ratios: 1st-3.133, 2nd-2.045, 3rd-1.481, 4th-1.161, 5th-0.942, 6th-0.763, Reverse-2.800, Final Drive-4.100, Secondary gear reduction-1.208. Hope this helps you with the numbers?
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Old Sep 27, 2004 | 02:12 PM
  #58  
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Some quick numbers on AVERAGE piston speed during an entire crank revolution:

F22C1: 89.2488 kph at 8200rpm
F20C: 89.712 kph at 8900rpm

Pretty dang close. An F22C1 at 8900rpm has about the same piston speeds as an F20C at 9600rpm.

I'll see if I can find or work out formuals for instantaneous max piston speed and acceleration.
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Old Sep 27, 2004 | 06:44 PM
  #59  
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Originally Posted by mxt_77,Sep 26 2004, 12:25 PM
Go look again. I'm pretty sure you won't find a clock anywhere on your 02 USDM gauge cluster. Plus, your tach should go all the way from left to right, not just 2/3 the way. And your coolant temp and fuel level gauges would not be curved. The coolant temp gauge would be a bar-shaped gauge on the left and your fuel gauge would be a bar-shaped gauge on the right.

And to the original post... if you just need an ECU and guage cluster swap to safely rev to 9K, then I think I'll swap this stuff into my Accord, so I can rev it to 9000 RPMs!

Just kidding... unfortunately, there's this crazy thing called physics that keeps us from being able to do that safely and reliably.
I already relized that I posted about 10 minutes after that, stating I had a brain fart that morning
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Old Sep 27, 2004 | 08:24 PM
  #60  
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Originally Posted by 44Runner,Sep 27 2004, 12:36 PM
That is a very ignorant statement.

You "think" it could handle it. Did you read anything else posted in this thread? 800 RPM might sound trivial to someone that knows nothing about engines, but trust me, it isn't.

I wish somebody could come up with some actual figures so we could do some calculations to see what it is we are really talking about.
44runner, What if it is true that Honda is testing a 2.2 with a 9k rpm redline? If the 2.2 does indeed have the same valvetrain as the 2.0 then the only big concern is piston speed. Granted that is a significant consideration but seriously 800 rpm increase might not be all that bad if the valvefloat isn't an issue. I'm admitting that long term wear could be increased but I'm willing to sacrifice some things for performance. How much of a risk would the extra rpm be? We need actual figures as you pointed out to be able to better make that judgement.

JeffA
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