I was just wondering if u put a jdm final drive on a Usdm ITR would the top speed decrease and if it does to what speed. And also if you guys know the max speed in each gear before and after the final drive is installed I would appriciate it if u could post it or a link to where i can find out.................Thanks

 

http://www.autocrossing.com/cgi-bin/gearcalc.cgi

Gear ----- ShiftRPM ----- Speed @ 8500 RPM
1st ----- N/A ----- 37.3
2nd ----- 5539 ----- 57.2
3rd ----- 5887 ----- 82.6
4th ----- 6454 ----- 108.8
5th ----- 6511 ----- 142.1
RPM in top gear at 70mph: 4188

Thats with the JDM Final drive. Goto the link and click ITR tranny to find out what you want to know. Make sure to change the RPM Limit to yours.

 

USDM tranny with 4.400 USDM FD.

Gear ----- ShiftRPM ----- Speed @ 8500 RPM
1st ----- N/A ----- 40.6
2nd ----- 5539 ----- 62.2
3rd ----- 5887 ----- 89.9
4th ----- 6454 ----- 118.4
5th ----- 6511 ----- 154.5

 

Thanks you helped alot