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Gearbox power loss

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jb007

Post subject: Gearbox power loss

Posted: Sat Jan 08, 2011 9:49 am

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Joined: Fri Feb 13, 2009 10:11 am
Posts: 848
Location: Hoppers Crossing

Hi all. Have a 1310A+ that measured 51BHP at the wheel on a recent dyno day. I'm trying to calculated injector sizing for my EFI conversion project, http://www.ausmini.com/forums/viewtopic.php?t=67644, and need to know what the BHP would be at the engine. It is a standard A+ gearbox with 3.44 diff. Any ideas?

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GT mowog

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Posted: Sat Jan 08, 2011 10:01 am

Mods rock!

Joined: Fri Oct 03, 2008 9:02 pm
Posts: 5079

Without proper measurement it will only be an approximation, roughly in the range of 20% to 30%, however, do you have all the environmental factors of the day for corrections? These too can cause a variation of up to 40% easily.

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Kennomini

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Posted: Sat Jan 08, 2011 11:21 pm

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Joined: Thu May 24, 2007 7:19 pm
Posts: 5370
Location: Yandina,Sunshine Coast,QLD

For an A series the general gestimate is 20-30%

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