LSDs

[Steve]

gotta name? all the importers I know if here seem to want big bucks for any aftermarket bits.

[Duncan]

I got mine from Powerplay in Sydney and they have at least 1 other there gathering dust

[(B1) MR_fanny]

all this reading on 2 way diffs has got me interested. so how noisy are these things compared to stock?? like would i be able to hear it in the cabin over an exhaust or outside if i stand on the streets??

[Jay95R33]

all this reading on 2 way diffs has got me interested.  so how noisy are these things compared to stock??  like would i be able to hear it in the cabin over an exhaust or outside if i stand on the streets??

They are only noisey when taking slow corners.

So taking off from the lights and doing a 90 degree left turn you'll be able to hear it. And so will the people standing close to the car. But if you go around the corner with netrual throttle (not accelerating and no deccelerating) there's no noise as the diff only locks up when accelerating or deccelrating.

Reverse parking can be a little noisey too, backing out of drive ways etc..

I also find that when the oil in the diff is cold (first thing in the morning) it's like a stock LSD. But once the oil is warm/hot it does it's thing

J

[fatz]

i think you will find a two way under hard braking kicks the tail out (entering a corner)

will help you set up for a corner

similar to a bit of a trail break

[GTRgeoff]

Late 60's F1 cars were set up with differing ramp angles on accelerate and trail for exactly that kind of handling.

[Jay95R33]

Late 60's F1 cars were set up with differing ramp angles on accelerate and trail for exactly that kind of handling.

And I think this is the difference between a 2 way and a 1.5 way. Eg. 1.5 way locks up faster in acceleration, and locks up slower in deacceleration. While a 2 way locks up the same either way.

Or should I say - the difference between the 2 and 1.5 ways is that the 1.5 ways don't lock up as fast in deaccelerating....

Anyone know for sure??

J

[Steve]

HUGE thanks to Duncan, got a 1 way off powerplay for $350 delivered to Adelaide:D:D:D

[(B1) MR_fanny]

thanks Jay95r33.....im sure i can live with that if it does its job in the end:D might have to find someone with one and go for a ride.

how much do these normally fetch for?? and is there any particular brand that stands out from others?? the hicas is totally eliminated too rite?? so i can scrap gettin the hicas removal bar and put that money into a 2 way diff rite??

[Jay95R33]

thanks Jay95r33.....im sure i can live with that if it does its job in the end:D  might have to find someone with one and go for a ride.  

how much do these normally fetch for?? and is there any particular brand that stands out from others??  the hicas is totally eliminated too rite?? so i can scrap gettin the hicas removal bar and put that money into a 2 way diff rite??

That's cool,

By the looks of it, secondhand ones go for around $500. Not sure what the differeces are between brands, but maybe stick with a big brand (Cusco, Nismo, ATS etc..) if your unsure.

Another thing is that your rear tyres will wear a little quicker than normal. This is due to the skipping, plus the fact that they are so fun to drift with

The HICAS is totally seperate to the diff, so you will still need the HICAS lock bar if you want to disable it.

J

[Steve]

$500 is a very, very good price for a decent second hand 2 way diff. Realistically expect to pay 800-1000 for a good one.

I have been looking for one for a while, cheapest (until now) I have seen is $850, dearest around 2K.

Did I mention I just picked up a 1 way for $350:D

[Jay95R33]

Steve - was I right about the differences between the 2 and 1.5 ways??

And what's the go with a 1 way? How are they different to the 2 and 1.5's ?

J

[Duncan]

$500 is a very, very good price for a decent second hand 2 way diff.  Realistically expect to pay 800-1000 for a good one.  

I have been looking for one for a while, cheapest (until now) I have seen is $850, dearest around 2K.

Did I mention I just picked up a 1 way for $350:D

hehe told you they want to get rid of them

1 way is just lock up under acceleration, no effect under braking.

I haven't tried a 1.5 or 2 way to compare, but the traction and predictability out of turns with the 1 way is *amazing*

[HKSgtst]

wow .. great info guys !

btw, i'm looking at buy a 2 way LSD. So if you have one or know a place that has one, please PM me..

[skids]

so what do you guys recommend for a street car that wont see a circuit? 1 way?

[Steve]

Jay, yep basically. If you could imagine the 'ways' referr to the locking characteristics of the diff, 1 locks one way, ie accelleration, 1.5 locks on accel, half locks on decel, 2 ways locks two ways accel and decel.

skids, really, 1 way is fine, very predictable when accelerating, but wont lock when you brake, so if for some reason you need to brake into a corner, less likely to kick the back out.

[GTRgeoff]

Just a note on the HICAS lock bar. I'm building one now and the threads are a 16mm x 1.0 thread pitch. Entirely uncommon in Oz but you can get a bottoming tap for a bargain $65......ouch. Oh well it is cheaper than the off the shelf items.

[Turbo Tits]

i would recomend a 2way for the street, depending on how you drive.

I have a 2way, and the thing i love most is that when the tail is out, and i get nervous and back off too suddenly or early, the back end sits firmly planted, with no snapping back, spinning round, or fishtailing. Its saved my arse a few times.

id only see a one way good for launches and power oversteer for the experienced.

[Turbo Tits]

steve you sound experienced so its ok for you

[Steve]

Update, diff arrived, and surprise surprise its a 2 way nismo:D:D:D so I reckon I got close to the bargian of the century - absolutely stoked.

I didnt realise quite how bad the stock diff is until I fitted this thing. especially noticeable when coming onto boost and taking off at the lights where I used to get the rears (or one rear) chirping all the time. Now I can just feed on the throttle as I move off and she just launches - heaps better, feels alot quicker.

The transition to oversteer is so much better too, no longer just snaps sideways, just gradually moves out and then comes back nicely (unless you just go nuts with the loud pedal).

If I knew how bad the stock diff really was, I would have upgraded along time ago.