Do all the 07 G35's come stock with limited slip or just the sport?

 

Just the sport. AWD on the x

 

Limited slip is standard on all 2007 G35 Sedans, with the base and journey having 2-wheel ABLS, the G35X having 4-wheel ABLS, and the sport having a viscous limited slip rear differential VLSD.

 

The million $ question is can the VLSD be put in the X. More than likely it can on the Journey, but I'm curious on the X since that's what I have.

 

Viscous Limited-Slip Differential (VLSD) only comes on the sport model of the 07 G35 sedan.

 

Sorry for my ignorance... but what is the difference between all this. In fact, what what does a limited slip differential do? I assume it stops sending power to the wheels when they slip?? So, what is the difference between ABLS and VLSD (and what do those acronyms mean?)

 

Viscous Limited slip sends power to the wheel with the most traction. So on hard launches.. power is transferred to both wheels for better traction. Without limited slip, you just spin one wheel and mostly slip.
Limited slip really shines in corners. If you power out of a tight turn, without LSD the inside wheel lifts and you lose traction and speed. Limited slip would transfer power to the outside wheel and no traction is lost.

ABLS uses the ABS system to limit wheel slip. It does nothing to transfer power

 

ABLS is just enhanced traction traction. Audi peddles the same thing as EDL, "electronic differential lock." All it means is that the brake stops the spinning wheel, forcing the diff to transfer power to the other wheel. The differential does no actual locking.

ABLS/EDL probably does not operate in corners. And, as with traction control in general, applying a brake takes away from the power the engine is producing, limiting acceleration.

 

an lsd provides power to both wheels, even without traction, but also allows for the inner and outher wheels to rotate at a different rate of speed through a corner, giving best possible grip. Without LSD, drifting wouldn't be as fun, or easy!

 

Hmmm .... not quite ....
The job of ANY differential (whether it is LSD or not) is to allow for the driven wheel to spin at different rates when needed (like when on a curve).
This is nothing special to lsd -- every differential would do the same basic job of
(1) powering the wheels
(2) allowing for diff. speeds.

 

Are we sure that the non-sports have LSD? I dont see it listed in any of the Infiniti documents.

However if the Journeys have ABLS as noted above, does this still mean that both wheels will get power (positraction) or does that mean when leaving the line hard that only one wheel will go up in smoke?

In my opinion a true LSD will allow power to both wheels as well as allowing the inside wheel to turn at a different speed.