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Old May 3, 2009 | 08:33 AM
  #31  
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tlk50
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How do you exceed !00% VE?
 
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Old May 3, 2009 | 10:24 AM
  #32  
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shanes66charger
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Originally Posted by American Thunder
Some race engines exceed 100% volumetric efficiency.
I did say "naturally aspirated"
 
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Old May 3, 2009 | 01:16 PM
  #33  
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I know, I meant naturally aspirated.
 
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Old May 3, 2009 | 01:24 PM
  #34  
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American Thunder
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From: Upstate New York
Originally Posted by tlk50
How do you exceed !00% VE?
Intake pulse tuning.A rough formula; Torque per liter * 1.4 = VE.
 
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Old May 4, 2009 | 12:09 PM
  #35  
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From: Alston, MI
Originally Posted by shanes66charger
thats correct..........but in reality you should take the final number and multiply it by about .7 or .8 This is due to the fact that short of some sort of forced induction the most efficiency you will get is about 70-80%. The best naturally aspirated race engines are about 90-93% efficient.

It is better to be a touch to the small side than too big when it comes to carbs.




(technically speaking of course)
yea, that's why i said 100%... i dont think i'd go for a carb to overfeed an engine, unless it's the only one i have on hand.
 
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