Engine & Internal Chat about beefing up your engine's insides here.

Overboring

Old Mar 20, 2006 | 12:15 AM
  #11  
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Into an open deck I presume. Is it possible to sleeve a closed deck block? Perhaps by removing the sleeve that's already in it and putting in a stronger one?
 
Old Mar 20, 2006 | 12:18 AM
  #12  
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Default RE: Overboring

Yes you have the right idea
 
Old Mar 20, 2006 | 12:23 AM
  #13  
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Ha, you're my hero Marty. I'll save ya a race next time I come through gorgeous TN.
 
Old Mar 20, 2006 | 12:36 AM
  #14  
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Glad I could help
 
Old Mar 20, 2006 | 12:13 PM
  #15  
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doesn't a block guard do a similar function?
 
Old Mar 20, 2006 | 01:24 PM
  #16  
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Yes. Blockguards stabilize the tops of the sleeves to prevent lateral motion. However (expecially in high-boost applications) they can inhibit coolant flow, allowing the tops of the sleeves to develop hot spots and possibly give out.
 
Old Mar 20, 2006 | 04:43 PM
  #17  
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correct me if im wrong, but having a large bore and a less-than stroke gives you power to high RPMs right? i thought thats basically how F1 cars rev that high. short strokes and wide bores with mind-****ing CRs. is that right or am i just crazy?
 
Old Mar 20, 2006 | 05:52 PM
  #18  
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I don't think bore affects the ability to rev. Actually I would think a smaller bore could rev higher. Bore is just for power. Short stroke does allow higher revs though.

Someone correct me if I'm wrong.
 
Old Mar 20, 2006 | 05:55 PM
  #19  
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i believe your refering to the rod stroke ratio. long stroke engines don't rev that higgh because of the fast piston speeds at high rpm, so longer rods and shorter stroke give less piston speed and more high rpm stability. they also have less cylinder wear i hear
 
Old Mar 20, 2006 | 05:58 PM
  #20  
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yes thats what i was referring to. it makes sense when you describe it like that.
 

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