ok like my old cars i would go from 3.42 rear end gear ratio to 3.73 and 1/4 mile was cut almost in 1/2 SECOND. then went to 4.10 and from 3.42 to 4.10 1/4 mile was cut about a second

has anyone did rear end gear ratio changes on these cars?? i have a 6 speed.

WHAT IS THE STOCK REAR END GEAR RATIO?

<P ID="edit"><FONT class="small"><EM>Edited by NORCALSTI on 11/18/04 08:20 PM.</EM></FONT></P>

 

The stock 6MT final drive is 3.538 and you can lower it to 3.917 with 350EVO's final drive assembly.

http://www.350evo.com/catalog/produc...products_id=76

04' G35S 6MT Ivory Pearl, Willow, Premium
Z-Tube / NFC Y-Pipe / Custom Mid-Pipe / 350 EVO Rear Sway/ '03 350Z Shocks and Springs

 

or you can do what i did if you have an AT, swap in the MT diff for a 3.357 --> 3.538 gear ratio change. This was good for about 0.2 second 1/4 mile time.

G