Slee

So I Got a question in a straight line whats faster and g37s or a g37xs a question i haven't been able to find an answer to so I figured I ask the forums

Rochester

iTrader: (9)

I believe they are so similar as to not matter really. However the xS is certainly faster on mud and snow, whereas the RWD S with LSD is just more fun to drive.

Mboxer511

iTrader: (1)

I believe the AWD will have an advantage in the beginning as the power distribution is a 50/50 split from a dead stop, which transfers power to all wheels equally. However as the car gains speed the power moves towards the rear until its 100% rwd. At that point, the additional weight from the AWD system might stop it from reaching the same top speed as the RWD car.

Basically in a 1/4 mile race the AWD would be ahead in the beginning but might be .1 sec behind by the end. This is in a perfect situation where both drivers had the exact same timing with their driving, start to finish.

xorbitman

I have a 2012 xS Coupe and it has front and rear LSDs....and when I turn traction control off it doesn't completely turn the nanny off however it allows a bit of fun going around corners while accelerating....and produces a bit of controlled fish tailing.

Selym

Did you swap the front diff, or did it come with an LSD?

Rochester

iTrader: (9)

Somebody with more engineering chops than me can weigh in, however... the AWD G has what's called ABLS (Active Brake Limited Slip). So functionally, it's left-to-right side limited slip behavior. But mechanically speaking... nope. You don't have front & rear LSD.

Mboxer511

iTrader: (1)

If you have the 2012 xS (which I have too) the front and rear have a Viscous Limited Slip Differential (VLSD). Instead of gearing it uses liquid and clutches similar to a torque converter in an automatic transmission. It's all controlled by the electronic clutch pack (ATTESA E-TS) to transfer power front to back/back to front, and from there it uses 4-Wheel Limited Slip ABLS to transfer power from side to side. Only the S cars have LSD, and only in the rear.

Epiphany

VLSD is still LSD. I'm 99% sure there is no VLSD on any of the awd models, only a VLSD on the RWD models. AWD is open diffs front and rear fairly sure.

JSolo

iTrader: (14)

^^Agreed, I've never heard of any awd models having any sort of lsd/vlsd.

@Mboxer511 can you show some references?

SCRCMULL

Limited slip
330 hp
sport seats
different front fascia
19 inch wheels
akebono brakes

EcstaticG37XS

They're very similar in a straight line. I think the g37s being RWD will pull slowly away at higher speeds mainly because it's lighter.

If I didn't live in a snowy climate I would've preferred a G37S mainly due to the akebonos, LSD, and quick steering ratio.

Rochester

iTrader: (9)

The xS Coupe did come with the BBK, and limited slip was approximated through the ABLS system. But you're right about the steering ratio.

Here's the full features list: https://www.infinitihelp.com/models/...ifications.php

You know, if I were looking for a car today without a manual transmission, but with power and features, the xS Coupe would be a fantastic choice.

socketz67

I did not know this about the xS Coupe as I thought all xS models shipped with the smaller brake package. The AWD vs RWD Sport model feature list is a common source of confusion on the /g37 reddit sub.

This thread cites some references to VLSD being an option on the xS coupe as well: https://www.myg37.com/forums/engine-...-on-awd-g.html

I wonder how rare coupes are which possess the full sport feature set?

BULL

In that trim it seems like there are a few. It seems like this was a 2010-2013 trim, however they continued and possibly released the same or more in V36 Q60S AWD trim.

I think in my city I've seen 1 of these trims and Ake were there. It then threw me off when I started to see the sedan version of this trim did not and also some did not come with a front lip either.

@14Q60awdSPORT might have some more info for us.