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Old 02-17-2012, 10:55 AM   #28
old greg
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Quote:
Originally Posted by serialk11r View Post
Hey guys I noticed that on the S2000 for example they list primary reduction ratio for the gearbox, but on Toyota cars you can't find this.
I'd imagine that's because there isn't one. I'm assuming that the S2000's primary reduction is at the gearset that links the input shaft to the countershaft. On most transmissions it's simply a one to one ratio and if more reduction is needed it happens at the ring/pinion. I'd assume that a 1:1 gearset with the 9000 rpm redline would have caused some bearing or shaft to spin faster than the engineers were comfortable with.
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