2003 nissan 350z gear ratio

Nissan 350z / Nissan 370z technical discussion forum: Maintenance, performance, installations, modifications, how-to's and troubleshooting.
bokannon
Posts: 1
Joined: Tue Jun 20, 2017 1:01 pm
Car: 2003 Nissan 350z

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I just bough a 2003 Nissan 350z two days ago. The previous owner told me it had lower gears installed, but doesn't remember what gear. Without pull the rear end, I could use help figuring out the gear ratio. In sixth gear im turning 2,650 rpm at 70mph. in sixth gear I'm turning 3,000 rpm at 80mph. Anyone have a similar gear or know rpm of stock 350z? Thanks


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evildky
Posts: 14713
Joined: Sat Jan 31, 2004 9:23 pm
Car: 71 240ZT, 87 300ZXN/A-T, 06 350Z GT, Tundra TRD RW
Location: Louisville, KY
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use a gps based speedometer to compare to your dash readings, if the readings are within a couple mph chances are the seller was an idiot and the gearing is stock, also look at the rear tire size and compare it to stock, I'm running a smaller than stock diameter rear tire and my speedo is off by about 5 mph at 70


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