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hay guys i am trying to choose what diff to use in my r33 gtst. i want the diff for street and track work. so i don't want a 2 way mechanical lsd. i didnt know weather to rebuild my std one and shim it up a bit tighter, or go for a 1.5 way mechanical lsd? my house mate has a 1.5 way in his 180sx and it tends to push the car into the corner and make it understeer a little. what to do?

what experiances have you guys had?

what ratio's are you all running? i also want to make my car a little taller (more top speed)

what ratio do i have std?

cheers,

boz

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That slight understeer with the 1.5 way may not be diff related, and probably fixable with adjusting suspension / swaybar settings a bit.

I'd suggest a 1.5way mech, but if you don't like it, rebuilt stocky or maybe a 1way might be the go. Unless you're drifting, for a street car occasional track drive, a good stocky does the job.

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im using a 2-way on the street and for track which isnt the best idea....il probly screw it up soon, but i enjoy it, its fun. Ryan from Kansai uses a cusco 1.5way and it doesnt knock and shutter too much in his daily street use and is relatively good on the track, so maybe go a 1.5 way mechanical

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A 1.5 way LSD will understeer a little more on turn-in than an open diff, but it will be noticably better than a 2 way.

As other people have said, you can probably dial out most of that turn-in understeer by adjusting your other suspension components and the benefits of having a LSD outweigh the turn-in response of an open one.

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While you can shim up a standard viscous LSD it wont make it much better, the centre still opens up over time.

If you want a good diif without the understeer, and you dont drift, its simple, get a 1 way mechanical centre. Used to have one in my 33 and it was brilliant! A bit too tight for shopping centres but it was great on the track :(

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thanks mate what is the difference between a 1 and a 1.5way mechanical lsd? when will the 1 way lock up? i thought the 1.5 locked under power but not on coast?

cheers,

boz

While you can shim up a standard viscous LSD it wont make it much better, the centre still opens up over time.

If you want a good diif without the understeer, and you dont drift, its simple, get a 1 way mechanical centre.  Used to have one in my 33 and it was brilliant! A bit too tight for shopping centres but it was great on the track :P

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