S2000 Under The Hood S2000 Technical and Mechanical discussions.

aftermarket final drive ratio

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Old 10-20-2014, 04:56 PM
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Default aftermarket final drive ratio

Not sure if this is the right location for this thread but:

Been a long time since I've posted anything on this site. Hope you're all well. I've had my (Sherwin's) S2K garaged for 2 years and recently brought it out of mothballs and wanted to see if it was a reasonable car to drive semi-frequently.

Anyways: Sherwin changed the final drive ratio and it's unbearable for a car that is going to be driven around town, though it's awesome for a track car (I'm using my BRZ for track duty, I can't see abusing my brother's car like that). The speedometer is WAY off and cruising on the freeway is at almost 5000rpm.

All the original parts are gone, and frankly I don't even know what he did exactly. Speedometer reads 82mph when real speed is 70. This is all I know in terms of what "gears" he put in the car.

Any ideas how to reverse this? I guess I'm willing to trade for someone's stock gears as long as it isn't too much of a hassle
Old 10-21-2014, 06:43 AM
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Yellow Jacket from Modifry


https://modifry.com/products/yj/index.htm
Old 10-21-2014, 09:15 AM
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Originally Posted by hamlet9634
All the original parts are gone, and frankly I don't even know what he did exactly. Speedometer reads 82mph when real speed is 70. This is all I know in terms of what "gears" he put in the car.

Any ideas how to reverse this? I guess I'm willing to trade for someone's stock gears as long as it isn't too much of a hassle
Sounds like it has 4.77s in it now. Full pumpkin swap would be the easiest way to go to get it back to stock.
Old 10-21-2014, 10:24 AM
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yeah it sounds like a 4.77.
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