OS Giken Gear Set
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So in this months issue of Super Street they mention OS Giken has released a close ratio gear set for our gearbox. I've seen a bit about it around the forum but this seem like an official realease.
Any vendors have more info on it?
Any vendors have more info on it?
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Price, gear ratios, is it a direct swap from the factory gear set, any special modifications that might be needed, is it a gearbox that could be used regularly or is it purely for the track?
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Included Parts in the kit:
Countershaft, 1st main gear, 2nd main gear, 3rd main gear, 3rd counter gear, 4th main gear, 4th counter gear, 5th main gear with input shaft and 6th main gear
MSRP:
$4,190 as of 2010
gear ratio comparison:
OEM---1st 3.794, 2nd 2.324, 3rd 1.624, 4th 1.271, 5th 1, 6th 0.794
OS---1st 2.783, 2nd 1.961, 3rd 1.507, 4th 1.217, 5th 1, 6th 0.812
Construction is similar to their other gearsets, using steel alloy material, chemical heat treating, etc.
Countershaft, 1st main gear, 2nd main gear, 3rd main gear, 3rd counter gear, 4th main gear, 4th counter gear, 5th main gear with input shaft and 6th main gear
MSRP:
$4,190 as of 2010
gear ratio comparison:
OEM---1st 3.794, 2nd 2.324, 3rd 1.624, 4th 1.271, 5th 1, 6th 0.794
OS---1st 2.783, 2nd 1.961, 3rd 1.507, 4th 1.217, 5th 1, 6th 0.812
Construction is similar to their other gearsets, using steel alloy material, chemical heat treating, etc.
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That's an interesting choice of gear ratios. The OEM box has closer ratios than the supposed "close ratio box" from OS.
Do you know why they would have chosen the longer gears?
I suppose for the big power FI guys it makes the lower gears more useable.
Do you know why they would have chosen the longer gears?
I suppose for the big power FI guys it makes the lower gears more useable.
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Come to think of it it does actually make good sense. What they've done is make 1st a really long gear, and then just bunched the rest of them closer to each other.
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