370Z Factory LSD: This thing is worse than I remembered

spearfish25 · 02-08-2010, 08:28 AM

^pretty sure the Nismo 370Z has the same LSD as the sport package 'regular' 370Z. It just has a different diff cover.

Sharif@Forged · 02-08-2010, 08:59 AM

Quote:

Originally Posted by spearfish25

^pretty sure the Nismo 370Z has the same LSD as the sport package 'regular' 370Z. It just has a different diff cover.

The OEM LSD diff in the Nismo model 370Z is the same as the regular models.

For aftermarket, the best choices to consider are Carbonetic, and OS Giken, IMHO. There are others, but these two have the best performance and are least intrusive from a sound/grabbiness standpoint.

I am looking forward to trying out the OSG, since it doesn't require the very frequent fluid chances as needed by the Carbonetic diff. Might also be interesting to try the Carbonetic Metal diff, vs. the carbon diff that is popular.

B1nks · 02-08-2010, 09:13 AM

Quote:

Originally Posted by Sharif@Forged

The OEM LSD diff in the Nismo model 370Z is the same as the regular models.

For aftermarket, the best choices to consider are Carbonetic, and OS Giken, IMHO. There are others, but these two have the best performance and are least intrusive from a sound/grabbiness standpoint.

I am looking forward to trying out the OSG, since it doesn't require the very frequent fluid chances as needed by the Carbonetic diff. Might also be interesting to try the Carbonetic Metal diff, vs. the carbon diff that is popular.

True. That's the same line of thought that I have with OSG being my choice due to the lower maintenance and OSG NEVER having to service one of their models along with no break in required..just seems better choice. The low intrusiveness also is a plus but everyone that has the Carbonetic raves over it and loves it(minus the frequent oil change). I too would be curious about the metal diff..

blackflag · 02-08-2010, 10:30 AM

Quote:

Originally Posted by Sharif@Forged

The OEM LSD diff in the Nismo model 370Z is the same as the regular models.

But is the one in the Nismo model the same as the Nismo kit you can buy - the one with the adjustable settings?

Sharif@Forged · 02-08-2010, 02:41 PM

Quote:

Originally Posted by blackflag

But is the one in the Nismo model the same as the Nismo kit you can buy - the one with the adjustable settings?

No the Nismo aftermarket diff is a nasty race-like clutch style LSD. Pretty harsh and noisy so I don't recommend it for most people.

The OEM diff in my Nismo 370Z is the same as the other VLSD's on the 370Z. Nothing special to it.

37Z · 02-10-2010, 07:14 PM

Quote:

Originally Posted by Sharif@Forged

The OEM LSD diff in the Nismo model 370Z is the same as the regular models.

For aftermarket, the best choices to consider are Carbonetic, and OS Giken, IMHO. There are others, but these two have the best performance and are least intrusive from a sound/grabbiness standpoint.

I am looking forward to trying out the OSG, since it doesn't require the very frequent fluid chances as needed by the Carbonetic diff. Might also be interesting to try the Carbonetic Metal diff, vs. the carbon diff that is popular.

Yep... too bad Nissan only offers a base ,sport package instead of having the customer spec the Z! Likely Zs would come without radios, limited diffs, better/wider tires/wheels, springs/shocks/sways, BBK,etc.

modme · 02-08-2010, 11:57 AM

^agree

ZeeYouLater · 02-08-2010, 12:10 PM

CARBON CLUTCH - CARBONETIC - ACROSS Official Website

no curves

CARBON CLUTCH - CARBONETIC - ACROSS Official Website

no curves

and both look like they have only motor a cycle clutch inside --- cheap and heavy
after market desinged cnc stuff... maybe not bad.. who knows
and i think the carbon clutch is only for longer duration than normal motor cycle clutch types

if you make a lot of motor cylcle power weehlies from the light line the normal clutch burns out and loose the grip...thats all
by the way all europen cars are sold with VLSD and the big brakes (PACK or not)

Zsteve · 02-08-2010, 12:47 PM

So are the OS Giken more stock feeling the Quiafe? Also does anyone know what LSDs are out there for us 7AT guys? I have no lsd now so from what I can have found out that if I want to add a LSD and change gear ratios I would need to buy a 350Z pumkin too. If I just go LSD do I still need to buy the 350Z pumkin?

xiven · 02-08-2010, 01:05 PM

What mtn route did you go Sharif?

RCZ · 02-08-2010, 03:19 PM

Like I said in my journal ages ago, the stock lsd sucks, its just awful and completely unpredictable. One of my next mods is going to be that carbonetics 1.5 since some of you folks are having good luck with it.

Sharif@Forged · 02-08-2010, 05:00 PM

Quote:

Originally Posted by RCZ

Like I said in my journal ages ago, the stock lsd sucks, its just awful and completely unpredictable. One of my next mods is going to be that carbonetics 1.5 since some of you folks are having good luck with it.

I would not be surprised if you dropped a full second with the LSD installed.

spearfish25 · 02-08-2010, 03:47 PM

I inquired about a new diff the last time my mechanic worked on the car. He said "no problem" but noted that a diff change is a real PITA. Said it's one of his least favorite things to do. Apparently it takes a lot of trial-and-error with shims to get things aligned properly.

ChrisSlicks · 02-08-2010, 05:40 PM

Quote:

Originally Posted by spearfish25

I inquired about a new diff the last time my mechanic worked on the car. He said "no problem" but noted that a diff change is a real PITA. Said it's one of his least favorite things to do. Apparently it takes a lot of trial-and-error with shims to get things aligned properly.

Hmm, that's not what I want to here. Guess I'll be taking it to my mechanic for that one rather than attempting it myself.

The unpredictable grab and release behavior in the stock viscous unit is what I can't stand. I have one long sharp corner that I take on the way to work and if you push it a little it will grab and release 3 or 4 times. Not exactly confidence inspiring.

Sharif@Forged · 02-08-2010, 05:55 PM

Quote:

Originally Posted by spearfish25

I inquired about a new diff the last time my mechanic worked on the car. He said "no problem" but noted that a diff change is a real PITA. Said it's one of his least favorite things to do. Apparently it takes a lot of trial-and-error with shims to get things aligned properly.

The current aftermarket diffs are machined so precisely, that in only 1 case have we had to order different shims, especially given that everyone's OEM ring/pinion will be in low mileage/good condition. As long as he is experienced in working with rear ends, this isn't really that difficult of an install.

02-08-2010, 08:28 AM	#1 (permalink)
spearfish25 A True Z Fanatic Join Date: Mar 2009 Location: Naples, FL Posts: 4,117 Drives: to work Rep Power: 1857	^pretty sure the Nismo 370Z has the same LSD as the sport package 'regular' 370Z. It just has a different diff cover. __________________ 2013 Cadillac V-Wagon, RIP Z

02-08-2010, 12:47 PM	#9 (permalink)
Zsteve A True Z Fanatic Join Date: Sep 2009 Location: TX Posts: 3,298 Drives: the 2 balled club Rep Power: 22	So are the OS Giken more stock feeling the Quiafe? Also does anyone know what LSDs are out there for us 7AT guys? I have no lsd now so from what I can have found out that if I want to add a LSD and change gear ratios I would need to buy a 350Z pumkin too. If I just go LSD do I still need to buy the 350Z pumkin? __________________ 2010 LS3 C6 Silver coupe corvette

02-08-2010, 03:47 PM	#13 (permalink)
spearfish25 A True Z Fanatic Join Date: Mar 2009 Location: Naples, FL Posts: 4,117 Drives: to work Rep Power: 1857	I inquired about a new diff the last time my mechanic worked on the car. He said "no problem" but noted that a diff change is a real PITA. Said it's one of his least favorite things to do. Apparently it takes a lot of trial-and-error with shims to get things aligned properly. __________________ 2013 Cadillac V-Wagon, RIP Z

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02-08-2010, 11:57 AM	#7 (permalink)
modme Enthusiast Member Join Date: Mar 2009 Location: NY Posts: 345 Drives: G37 Rep Power: 17	^agree

02-08-2010, 01:05 PM	#10 (permalink)
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02-08-2010, 03:19 PM	#11 (permalink)
RCZ A True Z Fanatic Join Date: Nov 2008 Location: Miami Posts: 6,403 Drives: '09 370Z Rep Power: 1119	Like I said in my journal ages ago, the stock lsd sucks, its just awful and completely unpredictable. One of my next mods is going to be that carbonetics 1.5 since some of you folks are having good luck with it.