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Old 06 May 2009, 07:10 AM
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timrally
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Default 6 speed ratio's

Hi all,i'm looking to fit a 6 speed box into my GC8 rally car,but i'm not sure about final drive & gear ratio's for different models.As i understand it UK sti's have a 3.5 cwp & import sti's have a 3.9 cwp,is this correct?Also i have no info on individual gear ratio's.I'm looking for a dccd centre diff type box from a 2.0 litre car as i presume the 2.5 box has longer ratios?Any help would be greatly appreciated,regards timrally
Old 06 May 2009, 10:09 AM
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mike h
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This any good to you?transmission chart

Also try david at API impreza, he may have the answers for you. API impreza
Old 06 May 2009, 06:55 PM
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timrally
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Default re.6 speed ratios

Thats great,thanks very much,very usefull.Being a rally car i don't want too much top speed,so it looks like a import box is the way to go as they all have 1:1 drop gears rather than the 1.1:1 of the uk cars which equates to a 3.54 rear diff rather than the 3.9 of the imports,cheers timrally.
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