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Old 01-13-2002, 03:55 AM   #1
okamikatekore
Scooby Newbie
 
Member#: 12536
Join Date: Nov 2001
Location: AUSTRALIA
Vehicle:
1999 forester GT
2.0 Turbo, green

Default 4.111 final drive ratio change to 4.4????

i have a 99 forester gt (turbo)with 215/60-16 tires.if i put a lower profile tire(215/55-16) on,this will change my final drive ratio from 4.111 to 4.250.if i put a 50 series tire the ratio will go from 4.111 to 4.4.the 99 spec wrx had a ratio of 3.9,while the 99 spec sti had a 4.444 ratio.what effect will a taller ratio have?eg)will it rev harder at the same speed compared to the original etc.......
reasons for lower profile include:
ultra high performance tires are available in 55 series and lower
performance
aesthetics

oh yeah.....im aware of the issues involved with speedo accuracy(easy fix)
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