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Membership Secretary
Location:
Sydney
Registered:
June 2002
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Re: diff ratio and wiring
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Sun, 27 June 2004 07:45
 
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A low ratio i.e. closer to 1.1 will make a good high way gear, where as a gear that is futher away from 1.1 will be a good tourque, acceleration ratio. Thats the long and short of it.
example with my wagon, its was reving to hard at 110kph with the 4.1:1 ratio however it took of hard as, now with the 3.5:1 ratio it cruises nicely however still takes off well.
As for knowing what you need experiment is one way, the other is to check out the donor cars diff ratio, look at what type of motor you are using and what your 5th gear ratio is and look at the diff ratio. You would want to have them close to a factory car as this will bring you out pretty close to where you want to be.
I'm in a hurry I could explain it a little better with more time.
Luke
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