S2000 Under The Hood S2000 Technical and Mechanical discussions.

4.77 installed... what rpms @ 70mph

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Old 10-30-2014, 10:20 PM
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Originally Posted by xviper
This is why you need the Yellow Box - so that you can actually have the speedo "read" 70 mph when the car is going at a real world ground speed of 70 mph. NOW, once the speedo has been corrected with the YB and you drive at 70 mph, your rpm will display the corresponding 16.3% HIGHER rpm.

I just installed 4.777 ratio.

Is engine rpm being displayed false also?
Old 10-31-2014, 02:29 AM
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No, rpm is right.
Old 10-31-2014, 09:53 AM
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I have a stock AP2 ('04) and i sit at exactly 4k @ 75mph in 6th.. for the first few days i kept thinking i was in 5th.. idk 4k just seems high as balls for 6th gear.
Old 10-31-2014, 10:53 AM
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4.56 gears at 70 mph=4400 rpm.
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