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Toymods » Tech & Conversions » More capacity = more torque.... Engineering/sci reasoning?

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oldcorollas
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Kita-Ku, Sapporo, Japan
Registered:
January 2003
 
Re: More capacity = more torque.... Engineering/sci reasoning? Wed, 14 April 2004 07:56 Go to previous messageGo to previous message
LOL Laughing

sorry, i thought you were just summarising my description Wink Very Happy

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 Wink Very Happy

Cya,S tewart

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SubjectPosterDate
Read Message   More capacity = more torque.... Engineering/sci reasoning? no_tofu_speedWed, 14 April 2004 01:37
Read Message   Re: More capacity = more torque.... Engineering/sci reasoning? langWed, 14 April 2004 02:36
Read Message   Re: More capacity = more torque.... Engineering/sci reasoning? AlainveWed, 14 April 2004 02:52
Read Message   Re: More capacity = more torque.... Engineering/sci reasoning? langWed, 14 April 2004 02:56
Read Message   Re: More capacity = more torque.... Engineering/sci reasoning? no_tofu_speedWed, 14 April 2004 03:07
Read Message   Re: More capacity = more torque.... Engineering/sci reasoning? oldcorollasWed, 14 April 2004 03:07
Read Message   Re: More capacity = more torque.... Engineering/sci reasoning? oldcorollasWed, 14 April 2004 03:27
Read Message   Re: More capacity = more torque.... Engineering/sci reasoning? LambolicaWed, 14 April 2004 06:06
Read Message   Re: More capacity = more torque.... Engineering/sci reasoning? oldcorollasWed, 14 April 2004 06:31
Read Message   Re: More capacity = more torque.... Engineering/sci reasoning? LambolicaWed, 14 April 2004 07:25
Read Message   Re: More capacity = more torque.... Engineering/sci reasoning?  oldcorollasWed, 14 April 2004 07:56
Read Message   Re: More capacity = more torque.... Engineering/sci reasoning? FattonyWed, 14 April 2004 08:00
Read Message   Re: More capacity = more torque.... Engineering/sci reasoning? oldcorollasWed, 14 April 2004 08:10
Read Message   Re: More capacity = more torque.... Engineering/sci reasoning? dingalingWed, 14 April 2004 11:46
Read Message   Re: More capacity = more torque.... Engineering/sci reasoning? oldcorollasWed, 14 April 2004 12:01
Read Message   Re: More capacity = more torque.... Engineering/sci reasoning? dingalingWed, 14 April 2004 12:10
Read Message   Re: More capacity = more torque.... Engineering/sci reasoning? shinybluesteelWed, 14 April 2004 12:45
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