Anyone have a Carbonetics LSD?
 

I've read a couple of threads on limited slips and there isn't too many. I was wondering if anyone who has one on their Z could give a brief review. :tup:

I have the OS Giken and I love it so far. I've only managed to get the "popping" sound to happen once and I tried again the other day to show a buddy of mine but wasn't able to make it happen. It's a great unit and I could tell a difference immediately. I do recommend getting the OS Giken fluid with it because I've spoke with someone else who has it and used the Motul fluid and got a whine when cruising down the highway for a little while but I haven't had that issue. I would like to drive a Carbonetics and Quaife just to feel the difference if any though. Would be nice to have a comparison for a write up !

u can send a pm to Red 370...he has the carbonetics lsd

Thanks for the input! Did you have the sport package in your car before the OS Giken? Notice any different in street driving and/or track driving?

I have the Carbonetic LSD in my car and LOVE it. Not only is it one of the best performing diffs I have ever driven on the track, but it is also one of the most streetable diffs I have ever driven. Just as streetable as stock. The only catch is you HAVE to use Carbonetic diff oil since its a special formula made for the carbon discs. If you don't, it will be loud and might wear differently. I have also heard the OS Giken diffs are awesome as well and will be driving a car equipped with one here in a few weeks, although not a 370Z. Long story short, Carbonetic right now is my all-time favorite diff that I have tried, and I have tried a bunch in various different cars.

Thanks mike! So would you say its a night and day difference than the sports package viscous LSD?

I would say that would be an understatement. The stock LSD is complete garbage.

I had mine installed a good week ago, at first it was a bit whiny, but i guess its broken in a bit and its quieted significantly. I cant compare it to others because i've never used an aftermarket LSD, and I havent tracked the car yet, havent really noticed much of a difference in daily driving, however I've always been told carbonetic LSDs are the best hands down and last forever, as Mike can attest.

I have a Carbonetics LSD. It doesn't work very well at the moment as it is decorating my garage floor. I plan to get it installed in the next few weeks hopefully.

I dont have a LSD on my car, so if I were to go with an aftermarket one, would I feel any difference in daily driving? I wont track the car but maybe a 1/4 track here and there. Will it help with off the line starts since I dont have one at all? And will I feel it on turns during spirited driving?

It will make a big difference in comparison to an open diff in every situation except normal mild driving where there is no tire slip.

So now the question would be is it worth the money for spirited daily driving? I dont race but I do come off the line quick at times and things like that. You know "passing" those who are jealous and all.

Probably not. Depends on how badly you want to be the fastest at the stoplight I suppose. If having an open diff insn't really annoying you now, then chances are you would probably be more happy spending that money on other parts of the car.

probably so, I really want a SC right now.

Unfortunately after you go SC it will be quickly apparent how annoying your open diff really is. :D

Well I need to win the damn lottery then.

So if one were to want to purchase a Carbonetic diff, which sponsoring vendor sells 'em?

I think Z1 performance sells them.

Thx bud. +rep

TH Motorsports, or Z1 I believe are the current sponsors selling them.

Yeah Z1 has them, also I haven't tracked mine but I felt I was able to tell a large difference in spirited driving from the open diff without a doubt. It is complete night/day difference yes and even when just running through the gears on an on ramp it's much more confidence inspiring. I like the extra grip and less tire slip when drag racing also although I haven't launched mine..just some highway runs(I KNOW FORE SHAME !!!!).

PS: Also I think Forged Performance may sell some Diffs and I looked at Carbonetic also but the frequent oil changes swayed me away. The OS Giken is not nearly as frequent from the sound of things. If your car is a daily and rarely sees the track you can change it every 2-3 oil changes and be fine from what I've read. Also OS Giken has never had to service one of their diffs..ever. In the private for sale section I have a thread started about someone selling one brand new for a killer price.

I really really want one! All the threads about LSD's make me angry in the pants. Maybe I should just take the plunge and get it...

ya forged proformance sells it

I had a nismo diff in my g35, and it was so obnoxiously loud around slow turns, but the performance was incredable. Car hit gears harder and just felt way better all of the time. I swapped my pumpkin back in only a week after putting it in ( traded with someone to see if I could stand it ) BUT I would 100% want a diff like the quaife or carbonetics that do not come with all the noise and skips and bangs. The nismo is not something I would reccomend to anyone who drives on the street. But a good LSD is a great mod.

Any shop could change your final drive during that process too , saving a lot on labor if done at once.

I forget, but since were on topic, why change the final drive, and to what?

ya why change final gear ratio? higher hp and torque? what is the best final drive ratio?

I think chuck meant that since you're opening up the pumpkin anyways, it might be a good time to swap out the final drive as well since it will save you on labor. Most final drive swaps are for quicker acceleration. A final drive changes the effective gearing, making acceleration a little quicker. The trade-off would be reduced top speed (in extreme instances), however the majority of daily drivers would only realize higher RPMs at cruising speeds.

Z emimator has 4.08s in his auto. It's all preference but if gears are on your mind , the time to do it is when your diff is already out and open.

Red370 what parts were required for your base z other than the LSD ?

Did you follow the break-in procedure of figure 8's? I think they also recommend a diff oil change after 200 miles of break-in.

My LSD recommended either 800 or 1800 on the first oil change..need to check on that.

I have a carbonetics lsd that I bought from forged performance. I track my car and push to the limits as best i can. I occasionally drive my z on the street as well. Agree with comments that it is very street'able. And the performance at the track is night and day. I can roll on the gas mid-corner and I get predictable response and better hookup every single time. Agree with the comment that anyone adding HP through SC or whatever, or anyone taking weight off, is going to need a rear diff. A real one. In fact, I'd go so far as to say that a carbonetics rear diff should prob be the FIRST MOD you do when you get this car! Finally, you don't have to run the expensive carbonetics gear oil... I've talked with several folks that run this instead. I use it. Just make sure you use the thicker version of motul gear oil and there won't be any noise from the diff.

http://d5otzd52uv6zz.cloudfront.net/...fd29d5-350.jpg

I've been thinking about this. Drag racers like a bigger final drive gear (http://www.the370z.com/engine-drivet...-9-4-08-a.html). I think for road courses it is better to shift less often and on the tracks I run I find myself shifting near the end of a straight b/c I need another 5-10 mph out of 2nd and 3rd. So for me, perhaps a lower 3.3:1 final drive ratio. In my car, that would bring 2nd gear at redline from 69mph to 77 and 3rd gear from 99mph to 111. The risk would be not having enough torque for low speed 2nd gear work in a slow hairpin... but then there's 1st gear!

So it really depends on what you're trying to do. If you want to drag race, go with a bigger gear and improve your 1/4 mile. Otherwise leave it alone or go with a smaller gear even.