View Single Post
Old 12-24-2012, 10:02 AM   #11
Scooby Guru
Member#: 261612
Join Date: Oct 2010
Location: Minneapolis, MN
2002 WRX - 750WHP
9.5s @ 150mph


Originally Posted by SeeeeeYa View Post
To use VD it is important that all applicable parameters are absolutely correct. Enter the wrong final drive ratio, for example, and results will be significantly iincorrect. I have noted that the default numbers for my 2011 STi are not correct, so I created a profile that reflects my specific car.

Here are some numbers people may find useful:
Originally Posted by neorex View Post
so what FDR are you inputting...?
Originally Posted by SeeeeeYa View Post
The one that's in the service manual... 3.545. It is also in that list I posted.

FWIW, my default tire diameter is not correct either... nor is the vehicle weight.
The STI has a 1.1:1 center diff ratio. The front is a 3.9 and rear is a 3.54. Due to the center diff ratio the rear 3.54 matches the 3.9 of the front.

You need to use the 3.9 FD for Virtual Dyno.

I'll look into the tire diameter. It should be correct. I believe the vehicle weight is an average between the two trim levels.
* Registered users of the site do not see these ads.
xluben is offline   Reply With Quote