Author | Topic |

Location: Kita-Ku, Sapporo, Japan
Registered: January 2003
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Re: More capacity = more torque.... Engineering/sci reasoning?
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Wed, 14 April 2004 07:56

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LOL
sorry, i thought you were just summarising my description 
you are right in thinking more fuel + more air = bigger bang.. in terms of there being more heat and more volume of gas, but it's how that is used...
fromt he eqns above, you assume 100% efficiency, and if you have same piston size with longer stroke (more capacity) you get more bang and more torque.
also if you increase bore size, but keep stroke the same, you get more capacity and more torque.
but the bang itself is the same, ie the combustion pressure will be the same.
1600cc pulling 800Nm = only 4 bar boost.... if you actually get 4 bar boost into the cylinders of a 1.6L, it WILL make around 800Nm.. scary huh...
a 5L V8 pulling 100Nm is only abotu 20% efficiency...you'd prolly need a daihatsu carb to restrict it to that 
Cya,S tewart
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| Subject | Poster | Date |
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More capacity = more torque.... Engineering/sci reasoning?
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no_tofu_speed | Wed, 14 April 2004 01:37 |
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Re: More capacity = more torque.... Engineering/sci reasoning?
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lang | Wed, 14 April 2004 02:36 |
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Re: More capacity = more torque.... Engineering/sci reasoning?
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Alainve | Wed, 14 April 2004 02:52 |
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Re: More capacity = more torque.... Engineering/sci reasoning?
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lang | Wed, 14 April 2004 02:56 |
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Re: More capacity = more torque.... Engineering/sci reasoning?
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no_tofu_speed | Wed, 14 April 2004 03:07 |
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Re: More capacity = more torque.... Engineering/sci reasoning?
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oldcorollas | Wed, 14 April 2004 03:07 |
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Re: More capacity = more torque.... Engineering/sci reasoning?
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oldcorollas | Wed, 14 April 2004 03:27 |
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Re: More capacity = more torque.... Engineering/sci reasoning?
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Lambolica | Wed, 14 April 2004 06:06 |
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Re: More capacity = more torque.... Engineering/sci reasoning?
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oldcorollas | Wed, 14 April 2004 06:31 |
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Re: More capacity = more torque.... Engineering/sci reasoning?
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Lambolica | Wed, 14 April 2004 07:25 |
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Re: More capacity = more torque.... Engineering/sci reasoning?
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oldcorollas | Wed, 14 April 2004 07:56 |
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Re: More capacity = more torque.... Engineering/sci reasoning?
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Fattony | Wed, 14 April 2004 08:00 |
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Re: More capacity = more torque.... Engineering/sci reasoning?
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oldcorollas | Wed, 14 April 2004 08:10 |
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Re: More capacity = more torque.... Engineering/sci reasoning?
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dingaling | Wed, 14 April 2004 11:46 |
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Re: More capacity = more torque.... Engineering/sci reasoning?
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oldcorollas | Wed, 14 April 2004 12:01 |
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Re: More capacity = more torque.... Engineering/sci reasoning?
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dingaling | Wed, 14 April 2004 12:10 |
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Re: More capacity = more torque.... Engineering/sci reasoning?
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shinybluesteel | Wed, 14 April 2004 12:45 |