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What if... about engine size

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Old Dec 15, 2006 | 06:24 AM
  #26  
rehsper's Avatar
rehsper
2nd Gear
Joined: Mar 2006
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From: Mystic, Connecticut
Oooohh the misinformation! It hurts...

I don't know where to start.

There should be a disclaimer on this thread.
 
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Old Dec 15, 2006 | 06:41 AM
  #27  
ChrisW's Avatar
ChrisW
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From: Fresno, Ca.
I just don't know why you would ever want to do that. But ok.
 
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Old Dec 15, 2006 | 07:41 PM
  #28  
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herbie hind
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Originally Posted by twalling
Actually, F1 racing engines in the early to mid 60's were 1.5l and were mostly V8 configurations. The Lotus 25 was powered by a Coventry-Climax V8 of 1500cc displacement and when installed in Colin chapman's most perfect (IMHO) chassis it won the F1 World Championship in 1962!

There is no physical reason that V8 engines have to be as big as we 'Mericans are used to seeing them, but it would be pointless to try for "small" when the inherent balance and smoothness of a V8 will allow for nearly obscene numbers of cc's of hydrocarbons beng burnt (incompletely) and then spewed into the atmosphere!

Engine power is mostly a function of the conversion of chemical energy to mechanical energy (see my earlier post on this). Therefore, there are 2 basic paths automotive engineers can follow to increase H.P. at the flywheel: 1. burn more gas (the classic American approach) or 2. burn the gas more efficiently (the rest of the world's approach since at least the 70s). The goal is the same - convert as many BTUs as possible into BHPs (Brake Horse Power). It's all in the combustion of gasoline.
small v8 = way high rpms due to less reciprocating mass = probably more h.p. and smooooooth but expensive!!
 
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Old Dec 15, 2006 | 07:46 PM
  #29  
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herbie hind
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Originally Posted by chows4us
Can you spell .... HEMI?
and detonation?
 
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Old Dec 15, 2006 | 07:46 PM
  #30  
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chows4us
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Originally Posted by herbie hind
small v8 = way high rpms due to less reciprocating mass = probably more h.p. and smooooooth but expensive!!
Which is exactly the reason you see so few V12s. Smooth but expensive.
 
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Old Dec 15, 2006 | 07:47 PM
  #31  
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chows4us
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Originally Posted by ScottinBend


Exactly........no substitute for engineering. Cubic Inches are over rated....
I believe that is Mr. Ferraris line ...
 
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Old Dec 15, 2006 | 07:49 PM
  #32  
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herbie hind
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Originally Posted by Scavenger
So, instead of VTEC's, could we put this V8 in a classic mini? oooh!!
i saw in road and track or one of the same idiums a golf with a northstar v8 in it . it was siiiiick!!!
 
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Old Dec 15, 2006 | 08:39 PM
  #33  
Yona_Usti's Avatar
Yona_Usti
1st Gear
Joined: Sep 2006
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From: SoCal.
How about a 5.655 cubic inch Hemi?

http://www.weberprecision.com/enginevid1.wmv
 
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Old Dec 15, 2006 | 09:44 PM
  #34  
Scavenger's Avatar
Scavenger
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Originally Posted by Yona_Usti
How about a 5.655 cubic inch Hemi?

http://www.weberprecision.com/enginevid1.wmv
That's awesome!! I want one!
 
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Old Dec 16, 2006 | 10:50 AM
  #35  
Deviant's Avatar
Deviant
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From: Southern IL
I feel obligated to point out that cylinder count alone does not determine the engines smoothness but also the engine layout and how it handles secondary vibrations. Most I-4s use balance shafts to quell secondary vibrations while Inline sixes and V or Flat 12s create almost no secondary vibrations.
http://www.autozine.org/technical_sc...ne/smooth1.htm
 
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Old Dec 16, 2006 | 11:26 AM
  #36  
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herbie hind
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Originally Posted by Deviant
I feel obligated to point out that cylinder count alone does not determine the engines smoothness but also the engine layout and how it handles secondary vibrations. Most I-4s use balance shafts to quell secondary vibrations while Inline sixes and V or Flat 12s create almost no secondary vibrations.
http://www.autozine.org/technical_sc...ne/smooth1.htm
and everyone scofs at the ford 200 ha!!! it's a beautiful engine.
 
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