Aftermarket LSD's and you:
 

Anyone see the article in SCC this month comparing the Quaife, Nismo, stock, and open diffs for the G35?

I really liked what I read about the quaife unit, however, anyone have better insight on them or comparison experience? It appears the Quaife is a bit better suited for road racing than the nismo, but some of the data doesn't support that. However, the Nismo is said to be louder than the quaife.

Yeah I saw that article, and if i remember correctly didnt it say that most people like the Nismo 1.5 for drifting?

Did they make comparisons for drag? I was considering the quaife because I have a base model and I heard its the only one that will bolt in with the base stub axles.

The Nismo LSD comes with the correct stub axles.

I don't get SCC and the article isn't online, can anybody scan it or give the gist of what it said? From what you've listed, its a comparison of the 4 predominant types of differentials; clutch, open, viscous and helical.

I've posted up my thoughts on them before, but if you have a direct question I can answer it. I had the VLSD, have the Quaife and have been in vehicles with the Nismo and open; so I'm pretty familiar with all 4 setups and the particular details between each one.

and you are also a nice guy :D

I will pick up the mag tonight... thanks for the heads up guys.... I am looking at a Nismo right now possibly.

i always got the impression the nismo was actually one of the physically stronger LSD's also - can take more abuse etc aside from maybe the ATS carbon ones

not sure if it's true though

I'm not a road racer, but, FWIW...

The Quaife unit is completely silent. It transitions from right-side to left-side bias instantaneously, seamlessly and smoothly. It's very strong; It has a lifetime, transferable warranty, even with racing and "unlimited" horse power applications. It requires no maintenance other than the normally scheduled differential fluid changes. If you completely lose traction to one rear tire (zero traction on that side), then zero torque is sent or "biased" to the other side. This could be a detriment in some situations, such as when/if a rear tire comes up off the ground in a hard corner. As long as both rear tires are touching the ground, you should be OK, except on snow and/or ice.

I'll be able to answer your question fairly soon, as I have the Nismo LSD, kicks like hell :D especially when you do a slow turn. :D

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are you using sythetic oil and redline friction modifier? - makes a HUGE HUGE HUGE HUGE oh and HUGE difference with the nismo lsd

Not really certain, what's being used as the axle lub.

I'll be replacing the stock shaft with L2 1/2 shafts

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Too bad they didnt throw in the ATS Carbon in that comparo. Comparing the Quaife to the Nismo is a poor comparison, IMHO. They are complete opposites.

how much lighter is the ATS than say the nismo?

wonder if there'd be less parasitic losses with the ATS

subscribing

Not sure if there is a hug weight savings, but the carbon discs will be lighter.

The real benifit, is the super smooth transition for unluck to 100% lock. You can barely feel it on the ATS Carbon.

it wasn't really a comparo as much as it was showing the differences in how different LSD systems work......clutch type vs. gear vs. viscous

what I got out of that article is

the nismo seems best for drifting
the quaife is smoother and a more linear engagement, so probably better for tracking

the stock VLSD is sorta ok, but slow to react to anything you do

the open diff kinda sucks, but if you know how to drive, you can make due with it and make it work out alright as far as lap times


What I primarily noticed when I added my LSD (nismo), is that going in a straight line is much more confident inspiring. The car hardly ever fishtails or at least not nearly as much. And also there seems to be more control when cornering. Throttle inputs actually seem like they do more or are more sensitive than before (compared to when I had the VLSD)

after upping the tires and rim size, making a turn from a stop I get wheel spin. (I have base, open Diff) I am getting a Nismo, so we will see if this is the fix I think.

and as Sentry said, straighline is hairy sometimes... not as stable as I would like.

How about the cusco LSD?

Seems like it's been getting good reviews from people.

Z-1 auto has (or had) a Cusco RS... they liked it. seemed like a close match to the Nismo. they would be able to give a good analysis