LSD Question

[240Knightrider]

Im a little confused on LSD. Im pretty sure I dont have it counting on the fact, 92, manual locks, windows, no abs. I have read a lot of searches but havent found an answer to my question.

I have read if you have lsd the two following things will happen1. You will leave two (2) tire marks if you do a burn out.2. when jacked up and a rear wheel is turned by hand the tire will spin in the same direction.

My question.Number 2 does not happen for me but number 1 does. Are all cars like this and those post were wrong or is my car just a one of a kind type deal.

[corn322]

mine leaves 2 marks. open diff.

[scruffy63]

i could have sworn i had an open differential but every now and then I see 2 rubber marks after a burnout. is this possible with an open differential?

[sixxdeuce]

yes its possible and very common. jack the car up and spin one wheel by hand the other will spin the same direction if its a vlsd.

[jab11185]

1. You will leave two (2) tire marks if you do a burn out.

sometimes....i know for sure cause i have an open diff and i killed my old tires the other day (new rims and tires:D ) it's definately possible to get both tires spinning to leave two strips....

[240Knightrider]

Yeah its possible, I know becuase I have an open diff and am forever leaving two tire marks, if I dont put but a lil' bit of power only one spins, most most of the the time both will. Lets just say low tread the back, ok time to rotate. lol

[D1SR240]

i usually leave two, but the only time i ever brake torqued my car or what ever you call it i only left one, infact only that one wheel spun the other didn't even spin. but it the mark is still on the street and its been about 9 months, but yes you can still make two marks with an open diff.

~swave

[jab11185]

i usually leave two, but the only time i ever brake torqued my car or what ever you call it i only left one, infact only that one wheel spun the other didn't even spin. but it the mark is still on the street and its been about 9 months, but yes you can still make two marks with an open diff.

~swave

i noticed that too....when i powerbrake there's only one strip....

[Shift_Oversteer]

correct... when the clutch is dumped you leave two; however when drifting or brake torqueing (torqueing??) you will only spin one tire most of the time...

[Onizuka]

yes its possible and very common. jack the car up and spin one wheel by hand the other will spin the same direction if its a vlsd.

No, VLSD acts exactly like a open differential until the silicon in it heats up enough to lock both sides.

If both tires have the same amount of grip, an open differential will peel out just like a LSD. The best way to test (in my opinion) is to hammer the throttle in a tight turn, and feel that one wheel spin. Probably 93% of all 240sx owners have open differentials, and probably 98% of S13s have open differentials.

[ahbongkeo]

what is the different between 2 way differential and 1.5? which one is better? Im also looking at the nismo lsd for the 240sx, any opinion on it?

[whiterps13]

2 way locks up fully under acceleration and braking. 1 way locks up only under acceleration. 1.5 way lock up fully under acceleration bue partially under braking. i would go for a 1.5 way if it is a street driven car. for the money, i would reccomend a kaaz or cusco unit over the nismo one. the kaaz is also adjustable by re-arranging the plates..

[ahbongkeo]

i been looking on the internet and both kaaz and nismo run for about the same price. i was told that clutch and Helical lsd is better than vlsd. who makes clutch/Helical lsd and where can i find it for my 240?what kind of lsd is nismo?

[sixxdeuce]

No, VLSD acts exactly like a open differential until the silicon in it heats up enough to lock both sides.

my viscous spins both tires in the air the same direction when cold, even tested it when it was first installed in the car before it was ran, no way it could have been heated up.

[D-UNIT]

^^ yup!!!

[ahbongkeo]

wut type of lsd is nismo

[k6kicker]

nismo = viscous (vlsd)kaaz = clutch?im not sure who (if anyone) that makes a helical unit but i know the s15's had one (as an option, not all had lsds but the ones that did had them, but they aren't the driect bolt on the others were and had gearing we dont want...somethiung along the lines of a 3.4~3.3 or so right?)

[k6kicker]

for general reference, a street driven car doesn't really need much more then a vsld...the clutch and helical types arent used stock due to noise...someone that autoXs for fun is well suited with one also, but domoene who is serious about drifting or racing should look into a clutch or helical type as they are more durable and work better (don't get me wrong, the stock vlsd on my 300z hold the massive power im putting down quite well and i don't "feel it heating up" or the need for any of that stuff) so in closing, if you are getting it for snow/rain traction, pay the 200 bucks and get the viscous and under no circumstance overpay for the nismo unit (get it cheap sure why not but dont spend as much as you would for a kaaz) my apolgies for a drawn out drunk post but i think it still is useful

[ahbongkeo]

k6kicker, thanks for the input man

[sixxdeuce]

I thought the nismo unit was a really nice fully adjustable clutch type lsd

[mellojoe]

THe NISMO unit is a clutch type. Its the same as the Kaaz.

Yes, a VLSD will rotate both tires in the same direction if the rear is jacked up and the car is in gear. The viscous fluid is fairly thick. It actually takes quite a bit of force to move the two wheels in opposite directions.

[ahbongkeo]

how is the kaaz lsd compare to the nismo lsd. if i get kaaz lsd what other parts or modification do i need to do inorder for it for fit? or is it a bolt on? i have a 95 240sx w/o lsd

[k6kicker]

dude im almost 100% certain that the nismo is viscous *checks website*

[k6kicker]

well i'll be damned, you were right, the nismo is a clutch type BUT its toned down a bit and made to be silent, so more like a serious road car...its generally seen as inferior to the kaaz unit for hardcore usage

[LSB_11]

i have been told that even the clutch style is weak, as in, i cannot do a brake stand for more then 15 second or it will hurt it. and what about fully mechanical lsd, as in no clutches or vlsd? and is mechanical and clutch style lsd the same thing? and if NOT, then what is this.

http://www.courtesyparts.com/M...RS661

[Dattebayo]

thats pretty cheap, no matter how you look at it...but it says "nismo non-viscous mechanical type" LSD application.sounds like a clutch to me. especially since the name for it is R200 not R200V.

[LSB_11]

ok, but do you think another company, say like PG would make one just like the clutch styles and just use gears, no clutches, and sitll put it in the R200 application? as in, is that the case code, or actually differential size, either way, wouldnt they all be called R200 so you fit it in the right application?

[ahbongkeo]

whats a 240sx w/sr?

[240Knightrider]

A 240SX with an SR

[ahbongkeo]

good answer