Nissan 370Z Tech Forums banner

1 - 5 of 5 Posts

·
Registered
Joined
·
1,364 Posts
Discussion Starter #1
There has been a bit of debate (ok, alot) about which gear is most appropriate to dyno our cars in. From what I understand the car should be dyno'ed when the gear ration is 1:1 which in the Z is 5th gear.

My first dyno was completed in 4th but I'm having the car dyno'ed again on the weekend. Am I best to ask for 4th or 5th?

Only difference will be exhuast and air filter.
 

·
Moderator
Joined
·
4,328 Posts
5th.

You should always dyno at whatever ratio is 1:1. But... if you are looking for a direct before and after comparison, you will have to dyno in 4th again.

-Ronin Z
 

·
Registered
Joined
·
11 Posts
typically, 250-300+whp cars will dyno in 4th. Its unnecessary to use 5th and higher gears unless you make a whole bunch of power which buries the RPM needle real quick. Just unneeded stress on the motor thats going to display the same graph in a lower gear.
 
1 - 5 of 5 Posts
Top