4.08 or 3.90 gear questions...

Originally Posted by dimitarm Is this mod affecting idle rpm's? no, its the final drive ratio. Only effects the mechanical advantage of power through the driveline when the car is

		Nissan 370Z Forum > Nissan 370Z Tech Area > Engine & Drivetrain
4.08 or 3.90 gear questions...

19Likes

LinkBack

Thread Tools

Display Modes

07-06-2014, 09:15 AM

#1 (permalink)

chii370

Track Member

Join Date: Jul 2010

Location: .

Posts: 642

Drives: .

Rep Power: 17

Quote:

Originally Posted by dimitarm

Is this mod affecting idle rpm's?

no, its the final drive ratio. Only effects the mechanical advantage of power through the driveline when the car is in gear. engine/flywheel/clutch or torque converter if your auto/transmission/drive shaft, rear diff "where FD is located"

The final drive determines the ratio of how many revolutions the driveshaft makes to turn the rear differential or tires one turn, or 1 foot radius to be more precise. if its a 4.08 to 1 the drive gear rotates 4.08 times and the driven gear rotates once.

Last edited by chii370; 07-06-2014 at 09:19 AM.

Bookmarks

« Previous Thread | Next Thread »

Posting Rules
You may not post new threads You may not post replies You may not post attachments You may not edit your posts BB code is On Smilies are On [IMG] code is On HTML code is Off Trackbacks are On Pingbacks are On Refbacks are On Forum Rules

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
Top Gear	SHIROZE	Mid-Atlantic Region	17	12-02-2010 09:31 AM
1st Gear F'd	tooohip	Mid-Atlantic Region	20	09-23-2010 12:08 AM
Questions, questions and more questions for a potential 370z buyer!	tag824	Nissan 370Z General Discussions	67	09-18-2010 12:07 AM
Questions about oil cooler and differential gear oil	Rhett	Engine & Drivetrain	4	04-17-2010 12:45 PM
Lag from 2nd to 3rd gear	G37sHKS	Engine & Drivetrain	2	02-20-2010 10:17 PM

All times are GMT -5. The time now is 03:58 PM.