S2000 Under The Hood S2000 Technical and Mechanical discussions.

Bypassing the AC Unit

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Old Sep 14, 2002 | 07:02 AM
  #21  
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[QUOTE]Originally posted by GEARHEAD
[B]Those of you who have used underdrive pulleys and light weight flywheels know that every little bit of rotating mass makes a difference.
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Old Sep 16, 2002 | 10:23 AM
  #22  
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[QUOTE]Originally posted by jschmidt
[B]There's no relationship between rotating mass and the AC pulley (except the insignificant parasitic rotation of the pulley (which probably weighs six ounces in total of which most is inboard). Remember, the A/C cuts out under load even when it it on. The compressor doesn't turn at all when it is off.
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Old Sep 16, 2002 | 10:47 AM
  #23  
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As already noted, I can guarantee that there will be no percievable (or dynoable) power gain by removing the AC system. Further, the weight saved is not worth it unless the car is being stripped for track. I will be money that all the AC components (condensor, evap, compressor, lines) weigh in at less than 20 lbs, more than likely only 10-15, max. I believe for the 5th gen Prelude they weighed in at a grand total of 14lbs.
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Old Oct 14, 2002 | 07:21 PM
  #24  
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Pro Autosports offers an AC Bypass belt for the S2000. www.proautosportsinc.com
I also saw an ac bypass belt from SPOON but it was really expensive ($160!). I used the belt from Pro Autosports and removed all of the ac system components forward of the firewall. I weighed each component to the nearest gram and the total was over 27.5 lbs. That's a pretty good lb/$ ratio. Plus, there is less inertia to rotate when accelerating. Besides, it's a convertible - who needs AC (at least in the Northwest)
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Old Oct 14, 2002 | 08:22 PM
  #25  
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The A/C does come in handy for defrosting purposes in the Northwest, plus for those road trips to Thunderhill, etc.
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Old Oct 14, 2002 | 08:48 PM
  #26  
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they dont sell cars without a/c down here. its more of a life or death situation at times. =D
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Old Oct 14, 2002 | 11:43 PM
  #27  
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funny how they didn't start selling one till this thread came about because I've seen that page before and it did not have that belt on it.
Good never the less but a little expensive.

bryan
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Old Oct 15, 2002 | 05:53 AM
  #28  
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[QUOTE]Originally posted by BryanS2k
[B]funny how they didn't start selling one till this thread came about because I've seen that page before and it did not have that belt on it.
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Old Oct 15, 2002 | 06:48 AM
  #29  
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Originally posted by marcucci
As already noted, I can guarantee that there will be no percievable (or dynoable) power gain by removing the AC system. Further, the weight saved is not worth it unless the car is being stripped for track.
I agree. I find it hard to believe ditching valuable components (or even using light weight pulleys and replacement pumps) are methods that really pay off for people that continue to use the car on the street. I've had my share of questionable mods and will be on the sidelines for these.
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Old Oct 15, 2002 | 06:49 AM
  #30  
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I suggest removing the accessory belt completely. It should run ok for 60 seconds. Great for autocross
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