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What happens if engine takes in more air than ...

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  #21  
Old 01-23-2019 | 05:20 PM
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Originally Posted by DonN
This hypercharger will give you another 10-20 hp.
Yes it will....as long as you drill it for a NOS bottle....
 
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  #22  
Old 01-23-2019 | 06:17 PM
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Most stock OEM air cleaner and filters will flow more air then a
Harley engine can use, be it a stock or modified exhaust system.
If you modify both intake & exhaust, a retune may be required.

John
 
  #23  
Old 01-23-2019 | 06:20 PM
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This thread is great, wish I'd thought of it.
 
  #24  
Old 01-23-2019 | 06:28 PM
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OP think of your two cylinders as your two lungs, You can not breath in more than you can exhale.
 
  #25  
Old 01-23-2019 | 07:07 PM
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Originally Posted by BobRR
What happens if an engine takes in more air than it can push out?

If you put a high flow air cleaner on but do not change the stock exhaust system as an example.
Sorry but this just makes me laugh out loud !!!
 
  #26  
Old 01-23-2019 | 07:50 PM
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Originally Posted by Dirty Harry
Sorry but this just makes me laugh out loud !!!
Bob has made some rather amusing posts lately, most notably a comment regarding a better sounding exhaust due to lower compression.
 
  #27  
Old 01-23-2019 | 08:03 PM
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Originally Posted by Prot
Bob has made some rather amusing posts lately, most notably a comment regarding a better sounding exhaust due to lower compression.
Look up the compression ratio for some of the early model mustangs. It was about 8 to 1. Higher compression rations make louder bangs and cracking sounds. (Higher frequencies)
 
  #28  
Old 01-23-2019 | 08:15 PM
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Originally Posted by BobRR
Look up the compression ratio for some of the early model mustangs. It was about 8 to 1. Higher compression rations make louder bangs and cracking sounds. (Higher frequencies)
And it all changes depending upon what you were drinking or smoking at the time.
 
  #29  
Old 01-23-2019 | 08:20 PM
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Originally Posted by Dirty Harry
And it all changes depending upon what you were drinking or smoking at the time.
Let me put it this way... I have found that I like the sound of low compression engines better than high compression engines. Sound is a very subjective experience.
 
  #30  
Old 01-23-2019 | 08:42 PM
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Originally Posted by BobRR
Let me put it this way... I have found that I like the sound of low compression engines better than high compression engines. Sound is a very subjective experience.
Outside temperatures and humidity will play with the sounds too. What % humidity and temps are most desirable to reach an acceptable tone, lets say, for a stock 1965 426 street HEMI.
 


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