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LSD/ Diff question

fat313
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fat313 Contributor

fat313

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I have finally got my car few days ago. However, I have one problem… whenever I turn full right or left, there are noises like “pluk, pluk, pluk pluk…..” and the car jerks a little. Anyone knows what might be the cause? I suspect the ex owner lock the diff / LSD… Anyway, is it safe to drive at this setup?

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Boostzor Grand Master

Boostzor

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Sounds like ure spot on there mate.

It wont be fully locked or ud know about it. EEEE round every corner hehe.

Should be ok to drive but it kills ure tyres reel fast which can be annoying but u have a real drift moblie there now:D

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fat313 Contributor

fat313

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the sound + jerk only appear when i release the cluch + turning... Cannot notice any problem when i hold down my cluch when turning... BTW whats the logic/theory behind it?

Another problem i am facing now is that when i am crusing at low speed, i can hear "gluk.. gluk... gluk..." from rear (sounds like from suspention). What might be the cause?

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meggala Grand Master

meggala

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yeah fat if you want I'll swap you with a perfectly good normal one :-)

Btw the chances are you car has a 2 way diff which is a much tigher locking one. they take some gettign used to and are used on track cars etc they make it eaiser to drift as well.

seriously if you do want to swp I'll swap with you

meggala

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Jay95R33 Grand Master

Jay95R33

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Meggala,

Funny you should say that.... I've got a mechanical Cusco??? in mine and I'm thinking about swapping it for a normal one.....But if they are as good as I hear they are I might hang onto it .

It's hard for me to compare the difference betweena normal LSD R33 and a mechanical (performance wise) cause my R33 is the only one I've driven ;)

Are they THAT much better than the stock ones?

Thanks

J

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fat313 Contributor

fat313

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Damn, now i am soo confuse... Tim from RPM told me that my diff is gone (base on the sound/ jerking) and required a replacement ($1600) but i dont think he suspect my diff might be machanical diff (btw he didnt really test my car yet.)... If i dont replace it, my car will brake down soon!! However, when i went to another machanic shop (A1), they suspect my car has diff lock like what you guys suggested, but they need an appointment to really check the car... Blah soo confuse i am.

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ix9 Grand Master

ix9

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Just drove a car with a VERY tight LSD... not nissan lsd if that's what you mean...

CLICK CLUNCK CLICK/ JERK / and on gravel all you hear is ksschcchhhh...

They grip like shit to a blanket. very nice stuff.

Don't take what I say for gospel, but it sounds like the diff's fine. just locked....

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Boostzor Grand Master

Boostzor

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When u go round a corner your inside wheel turns slower than the outside.

If your diff was fully locked ure inside wheel would spin every corner cause the diff would be "locked" together so both wheels would be rotating the same speed.

Good for straight lines cause u get 'even' power but not good for corners and control.

Most lsd:limited slip diff cars have a viscous fluid which transferrs power but some of the hardcore fellas have mechanical which i think work something like a clutch so u actually have metal on metal whiuch would exsplain the pluk pluk pluk (the sounbd of the diff moving against itself.

Hey all the actual mechs outthere correct me if im wrong:uh-huh:

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Boostzor Grand Master

Boostzor

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Originally posted by Boostzor

Most lsd:limited slip diff cars have a viscous fluid which transferrs power but some of the hardcore fellas have mechanical which i think work something like a clutch so u actually have metal on metal which would explain the pluk pluk pluk (the sound of the diff moving against itself.

Its a mechanical thing a welder can lock a diff just fine:)

Get a ball point pen that "kliks" notice the little piece of plastic that wont move when pushed "twist" lightly but will when u push"twist" hard.I think thats how it works

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