Final Drive Dyno
#1
Banned
Thread Starter
iTrader: (3)
Join Date: Apr 2008
Location: St. Mary's, Georgia
Posts: 195
Likes: 0
Received 0 Likes
on
0 Posts
![Default](https://my350z.com/forum/images/icons/icon1.gif)
Does changing out your final drive to 3.9 or 4.0 change your numbers on the dyno or does the power just come on a lot sooner? I would love ot see a dyno sheet before and after to see how it changes the numbers.
#3
Registered User
iTrader: (5)
Join Date: Nov 2007
Location: Santa Clara, Ca
Posts: 1,670
Likes: 0
Received 0 Likes
on
0 Posts
![Default](https://my350z.com/forum/images/icons/icon1.gif)
you will see a difference in the chart though. typically, a lower gear will give you lower HP ratings and a smoother curve. if you were to, say, dyno in 3rd and then 4th back to back, you would get the same curve shape, but 4th will give you a higher HP number (same with 1-2, 2-3, 4-5 or w/e you want to pick). essentially, the gears are making your drive shorter, so what is now 4th is more like 3.75 (lol) before the gears. you should se a small loss but not much. nothing significant and the shape will be the same. the power doesnt really come on earlier on the dyno either, it just gets there faster. well i guess it does come earlier time-wise, just not RPM-wise
Thread
Thread Starter
Forum
Replies
Last Post