Nissan 370Z Forum
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Nissan 370Z Forum (http://www.the370z.com/)
-   Engine & Drivetrain (http://www.the370z.com/engine-drivetrain/)
-   -   The Definitive Differential Thread (http://www.the370z.com/engine-drivetrain/89251-definitive-differential-thread.html)

Own3d 01-12-2017 07:23 AM
Quote:
Originally Posted by jchammond (Post 3601523)
If you have the complete pumpkin (stub shafts & all) i'm pretty sure you just bolt it in,,,though i would R&R rear crossmember bushing & you say you have the bushings.
Also,Think about an up-graded rear cover w/higher capacity from Z1 Motorsports.
Ver Nice piece.
Also,,,if you phone them-they could give you a definite answer about compatibility.
I'm thinking where people are having issues;is when the try to swap internal parts from a normally open base diff/to a diff from a manual....as myself chose to install the Quaife Helical Locker in mine-designed for the base & retaining my 3.357:1 gearing.
Hope this helps,as the 2 speed sensor's are located on the rear cover & read off of the toner ring's on the stub shaft's...therefore speedo will be accurate & abs,cruise, etc.. will work properly. Z1's# (770)838-7777
Yep, replaced the bushings with Whiteline bushings and went ahead and replaced the sway bar with a whiteline sway bar as well. Love the upgrade so far. Thanks for the clarification. It bolted right in without any issues.

The reason I came here is because my 6th gear cruise control does not engage. I was wondering if I was missing a part or something that would cause that to happen, or if I needed to do a relearn of some sort. I am tuned with UpRev.

Hotrodz 01-12-2017 08:07 AM
Quote:
Originally Posted by ChaseZ (Post 3601502)
Really? My cruise and VDC still work regardless which map I'm running.
You are correct they will work regardless of what map you are using however if you have them enabled the ecutek function may not work.

King 01-25-2017 01:50 AM
I have been considering the Tomei Technical Trax and noticed it missing here when i discovered this thread,

Tomei Technical Trax

Tomei Technical Trax PRO Kit

pro kit comes with 3.9 gears.
Any input from people more knowledgeable than myself on this LSD? Any reviews or horror stories?
It looked like the better of the units I looked at, even though it seems very wallet friendly.

jchammond 01-25-2017 03:41 AM
Quote:
Originally Posted by King (Post 3607556)
I have been considering the Tomei Technical Trax and noticed it missing here when i discovered this thread,

Tomei Technical Trax

Tomei Technical Trax PRO Kit

pro kit comes with 3.9 gears.
Any input from people more knowledgeable than myself on this LSD? Any reviews or horror stories?
It looked like the better of the units I looked at, even though it seems very wallet friendly.
When i clicked on the hyper-link & seen Z1 Motorsport's,,,you're good;as they will stand behind their products.
Very Good People! Just let them know your driving style & they can match you up w/the one that will work best.

B&W_Evader 01-25-2017 08:23 AM
@Own3d, What are you trying to fix with a stock VLSD? It probably won't fix it... Put a real LSD in there if your already going in that deep.

fmayi1101 01-31-2017 02:19 AM
pardon my noob on diffs but is it worth it to upgrade lad on nismo models? and what about the tomei diff weird no mention?

xxAGAVExx 01-31-2017 06:00 AM
Quote:
Originally Posted by fmayi1101 (Post 3609833)
pardon my noob on diffs but is it worth it to upgrade lad on nismo models? and what about the tomei diff weird no mention?


If you are asking probably not, it depends on what you are doing with it. If you track your car, you can heat up the fluid and the vlsd will feel like an open diff, if it's just street use, you should be fine.


Sent from my iPhone using Tapatalk

fmayi1101 01-31-2017 07:57 PM
Quote:
Originally Posted by xxAGAVExx (Post 3609852)
If you are asking probably not, it depends on what you are doing with it. If you track your car, you can heat up the fluid and the vlsd will feel like an open diff, if it's just street use, you should be fine.


Sent from my iPhone using Tapatalk
occasional track use.

Spooler 01-31-2017 09:25 PM
Quote:
Originally Posted by fmayi1101 (Post 3610133)
occasional track use.
Skip it and get a Wavetrac, Quaife, OS Giken, etc. The stock VLSD is not very good.

BlackZeda 02-01-2017 06:33 AM
Quote:
Originally Posted by fmayi1101 (Post 3609833)
pardon my noob on diffs but is it worth it to upgrade lad on nismo models? and what about the tomei diff weird no mention?
I have a Wavetrac in my NISMO and yes, it is a significant upgrade even for street use. Generally traction is all around improved and since I DD in the winter, it feels like I have 300% better traction in the rain and snow. It really tames the VDC.

It is a top 5 mod IMO.

Hotrodz 02-01-2017 08:22 AM
Quote:
Originally Posted by Spooler (Post 3610188)
Skip it and get a Wavetrac, Quaife, OS Giken, etc. The stock VLSD is not very good.
These three are proven upgrades and often debate as to which are the best. OS Giken generally comes on top for tracking and the other two for both track and street use. If you have an manual I would opt for the Wavetrac because it will lock more so than the Quaife when one of the rear tires leave the ground. Quaife is solid and a proven product on the racing circuits.

Spooler 02-01-2017 06:22 PM
Quote:
Originally Posted by Hotrodz (Post 3610343)
These three are proven upgrades and often debate as to which are the best. OS Giken generally comes on top for tracking and the other two for both track and street use. If you have an manual I would opt for the Wavetrac because it will lock more so than the Quaife when one of the rear tires leave the ground. Quaife is solid and a proven product on the racing circuits.
I am getting the Wavetrac. Like stock maintenance. Just waiting a bit before placing the order.

Hotrodz 02-01-2017 06:23 PM
I love mine!

Sent from my SM-N910P using Tapatalk

fmayi1101 02-01-2017 09:07 PM
future upgrade for sure, wavetrac or os given for me.

robway 04-04-2017 09:35 PM
I may be reviving dying thread, but some of the terms used in these kind of threads are unclear to me. when people talk about swapping pumpkins(differentials?)are they simply referring to carrier assembly, or are there other parts necessary? can i simply swap my base auto carrier with the mt vlsd carrier and then install the 4.08 gears

Optimiser 04-04-2017 10:02 PM
Quote:
Originally Posted by Hotrodz (Post 3610343)
These three are proven upgrades and often debate as to which are the best. OS Giken generally comes on top for tracking and the other two for both track and street use. If you have an manual I would opt for the Wavetrac because it will lock more so than the Quaife when one of the rear tires leave the ground. Quaife is solid and a proven product on the racing circuits.
The best LSD for tracking is CUSCO. The downside is it's a clunky LCD for daily driving. :driving:

LateShow24 04-04-2017 10:12 PM
Whats need to run a wavetrac and what slave ill be running a bp performance kit so external is not a option

jchammond 04-04-2017 10:14 PM
Quote:
Originally Posted by robway (Post 3636497)
I may be reviving dying thread, but some of the terms used in these kind of threads are unclear to me. when people talk about swapping pumpkins(differentials?)are they simply referring to carrier assembly, or are there other parts necessary? can i simply swap my base auto carrier with the mt vlsd carrier and then install the 4.08 gears
You posted on 2 threads,, I gave a description on other one. Also can call Z1 Motorsports & confirm needed parts for swap

Hotrodz 04-04-2017 11:24 PM
Quote:
Originally Posted by Optimiser (Post 3636508)
The best LSD for tracking is CUSCO. The downside is it's a clunky LCD for daily driving. :driving:
LMAO, the Cusco is a good unit no doubt but saying it is the best is debatable. I would go with OS Giken over Cusco if my Z was a dedicated track machine. That being said my Wavetrac does a damn good job for me and my skill level. The bottom line, it is about what suits your own personal needs.

Optimiser 04-04-2017 11:44 PM
Quote:
Originally Posted by Hotrodz (Post 3636545)
LMAO, the Cusco is a good unit no doubt but saying it is the best is debatable. I would go with OS Giken over Cusco if my Z was a dedicated track machine. That being said my Wavetrac does a damn good job for me and my skill level. The bottom line, it is about what suits your own personal needs.
That quote I took from you was referring to the best LCD, not personal preference. :driving:

Hotrodz 04-05-2017 08:46 AM
Quote:
Originally Posted by Optimiser (Post 3636551)
That quote I took from you was referring to the best LCD, not personal preference. :driving:
I still stand by what I said OS Giken trumps Cusco and I'm glad you like yours!:tiphat:

B&W_Evader 04-05-2017 09:14 AM
Love my OS Giken, I paid the extra for it because my research told me it was the best available.

Spooler 05-08-2017 10:48 AM
WaveTrac was not available. I had the OS Giken installed. It is very quite for a clutch diff. My car will come off a corner now like never before. This should be number one on the upgrade list before any suspension work.

Hotrodz 05-08-2017 12:15 PM
Quote:
Originally Posted by Spooler (Post 3650405)
WaveTrac was not available. I had the OS Giken installed. It is very quite for a clutch diff. My car will come off a corner now like never before. This should be number one on the upgrade list before any suspension work.
I tell people this all the time and they say they want to wait or it's not worth it...well I waited to do when I did my final suspension upgrades and was pleasantly surprised at the difference it made and would have made it one of my first suspension upgrades with hind sight being 20:20!

Sent from my SM-N910P using Tapatalk

Spooler 05-08-2017 02:25 PM
Quote:
Originally Posted by Hotrodz (Post 3650445)
I tell people this all the time and they say they want to wait or it's not worth it...well I waited to do when I did my final suspension upgrades and was pleasantly surprised at the difference it made and would have made it one of my first suspension upgrades with hind sight being 20:20!

Sent from my SM-N910P using Tapatalk
You and me both. I feel stupid now.

Own3d 05-09-2017 08:11 AM
Quote:
Originally Posted by B&W_Evader (Post 3607608)
@Own3d, What are you trying to fix with a stock VLSD? It probably won't fix it... Put a real LSD in there if your already going in that deep.
Thanks for the recommendation, but that's not something I am looking to do right now. This was a $300 upgrade (with bushings and fluid) over the Open Diff. I am much happier with the VLSD over the Base Diff. :driving:

Spooler 05-12-2017 07:04 PM
Here is an update on the OS Giken. Yes, it can get clunky on ya with warm RE11's and tight turns. I am running Motul 75w140 fluid. I may try the OS Giken fluid later if it get's on my nerves.

B&W_Evader 08-22-2017 02:46 PM
Mine only makes noise when I'm driving normal, slow sharp corners, never when I'm pushing it.

shadow85 09-07-2017 01:56 AM
OS Giken or Quaife for DD Automatic TT 370Z, which one is better for this scenario?

jchammond 09-07-2017 02:10 AM
Quote:
Originally Posted by shadow85 (Post 3691223)
OS Giken or Quaife for DD Automatic TT 370Z, which one is better for this scenario?
I have the Quaife in my base/touring,,,as i'm thinking it was about my only option with the factory 3.357 gearing.
I was told that if you lift a rear wheel (teeter it) while tuning up/down pretty sharp incline/decline...that the lifted wheel would only pull. As a Wavetrac unit won't do this.
Quaife is helical & no maintenance/while OS Giken is conventional clutch type & probably require a bit more frequent oil changes.
Gotta see what's available for your's.
My Quaife will draw even black lines as desired & make's 0 noise.....but i'm sure an OS Giken can be shimmed up tighter & potentially chirp a tire on very sharp turn's,,,as it's a more True posi unit.

jchammond 09-07-2017 02:19 AM
Quote:
Originally Posted by Own3d (Post 3650825)
Thanks for the recommendation, but that's not something I am looking to do right now. This was a $300 upgrade (with bushings and fluid) over the Open Diff. I am much happier with the VLSD over the Base Diff. :driving:
Mine had the open in it,,,as they can be very dangerous after adding additional power & disconnecting all traction control.
One wheel can get spinning way faster than other & then when things grab-You can make an un-expected lane change....not good.
That thing was replaced rather quickly afterwards w/Quaife helical,,,as this was my best option at the time.
Looking to pick up another pumpkin & have a second w/lower gearing & possibly a Wavetrac unit...but no problem's with the Quaife thus far.

B&W_Evader 09-07-2017 09:15 AM
I'd think with TT you'd want the OSG. They change it to a 2 way and adjust the split torque. Pop them an email, they're very responsive and will help you get the best setup.

shadow85 09-07-2017 09:15 PM
CZP and Z1 have both stated Quaife is the best for me. RevZone here in Australia reccommended Cusco RS 1.5 over the Quaife because the Cusco is a full mechanical where as the Quaife is a helical. Not sure if they are just trying to sell me the product because they have them readily available.

I may go with OS Giken because I can get it much cheaper here locally including the Output flanges.

Hotrodz 09-07-2017 11:26 PM
Cusco is a damn good rear diff as well...Quaife has built rear diffs for F1 cars so you can't go wrong with any of them.

Driftomodachi 09-08-2017 01:00 AM
Anyone have the Kaaz Super Q? The clutch plates are WPC treated so it is supposed to be super smooth and super quiet

shadow85 09-08-2017 04:55 AM
Quote:
Originally Posted by Hotrodz (Post 3691529)
Cusco is a damn good rear diff as well...Quaife has built rear diffs for F1 cars so you can't go wrong with any of them.
Hmm such a hard choice here, lol.

Cusco RS 1.5, Quaife or OSG!?
Guess ill just get whichever I can get cheapest, they all seem to be pretty highly rated.

radix023 09-08-2017 07:48 AM
Quote:
Originally Posted by shadow85 (Post 3691563)
Hmm such a hard choice here, lol.

Cusco RS 1.5, Quaife or OSG!?
Guess ill just get whichever I can get cheapest, they all seem to be pretty highly rated.
I was reading this thread and did some further research. Of the three:
OSGI (Shipping & Returns)
Cusco (HOME - Cusco LSD)
Quaife (Quaife Limited Slip Differential)

Only the Quaife offers any warranty at all. (limited lifetime)

Still your call, but something to consider.

shadow85 09-08-2017 08:21 AM
Quote:
Originally Posted by radix023 (Post 3691595)
I was reading this thread and did some further research. Of the three:
OSGI (Shipping & Returns)
Cusco (HOME - Cusco LSD)
Quaife (Quaife Limited Slip Differential)

Only the Quaife offers any warranty at all. (limited lifetime)

Still your call, but something to consider.
Hmm yeah that is something that makes it stand out from the crowd. But which one puts power to the ground the best for TT, and also is comfortable to drive daily?

Hotrodz 09-08-2017 09:03 AM
Quote:
Originally Posted by shadow85 (Post 3691610)
Hmm yeah that is something that makes it stand out from the crowd. But which one puts power to the ground the best for TT, and also is comfortable to drive daily?
I would go with whatever is cheapest and easiest to get serviced in your area. They all make a big improvement in mechanical grip. They real deal as mentioned in the thread about on braking is the tires or tyres you choose to run.

Driftomodachi 09-08-2017 02:00 PM
Reason OS Giken is so bad *** is because it has MORE CLUTCH PLATES than Cusco so it runs smoother and lasts longer. Reason I like Kaaz super q is because it is like a Cusco but the plates are WPC COATED and have very low friction surface so it is QUIET and also lasts longer. It is also about $400 less than the OS Giken. Quaife will suck on ice or if the car gets airborne because it is dependent on ONE wheel slipping so it won't be good for drifting only road racing.


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