hey guys quick questions when i was researching the clutch i got i came across an LSD for my car on SBR for only 188 (http://www.slowboyracing.com/more.php?id=1241&) but i was just browsing around and found another LSD from HPF for over 1K (http://www.horsepowerfreaks.com/pric...t/Limited_Slip) what's right??

 

The first one is bull****. Im not exactly sure what it does. but its not an LSD. Does that little rectangle box look like a differential to you? I think not. Real LSDs will always be expensive, because youre buying the whole differential.

 

and also, since you have awd already, lsd wont really be much of an upgrade, unless you are making a rally gsx, or you live somewhere where there is a lot of ice, or you just like offroading. PLUS you will also develop a larger turning circle, and thats never a good thing. I suggest just forgetting about the LSD.

 

i think the first one might be something you put into your diff to lock it into place, so you basically have positraction. that is bad.[sm=forgetit.gif]

 

i had no idea what a differential looked like that's why i was asking. but thanks for the info.

 

Well if you have a lot of time on your hands, and you love to learn about how cars work, check this out

http://auto.howstuffworks.com/differential.htm

 

that's where i learned most of what i know about cars i just never came across the differential one. but thtanks

 

Okay i did a little research, and found that the first "lsd" that was 188 bucks, actually does nothing more than completely lock your differential.

The little block "lsd", is to limited slip differentials
as
spring height adjustment sleeves, are to coilovers.



That thing will wear out your tires REALLY fast, because its basically like having a straight axle, without a differential, and it would pretty much be the same as this---


heres a picture of what it looks like inside your diff, with that piece in.


If your car is used only as a drag car, and youre only concerned with going really fast STRAIGHT FORWARD, no turning...Then yeah! go ahead and get it !

A real LSD has an assortment of springs and pins, which makes cornering a little better (but still worse than it would have been stock)
this is what one would look like.

 

"Limited-slip (or positraction) and locking differentials are traction-increasing devices. Locking differentials transfer all available torque to both wheels. The teeth of the spider assembly engage with those on the locker clutch, causing both axle shafts to operate as one. Locking differentials don't allow one drive wheel to spin while the other remains stationary. Instead, they keep both wheels in drive mode, but unlock to permit different wheel speeds when turning. The engaging and disengaging of the teeth on automatic locking differentials often causes a banging and clunking sound. Manual locking differentials usually use an electric motor or vacuum diaphragm to engage the locker, reducing this noise.

Limited-slip differentials allow different wheel speeds when turning, but when one wheel loses traction, greater torque is transferred to the wheel offering more resistance. Limited-slip differentials make use of friction between clutch plates, as opposed to the meshing teeth employed by locking differentials. Transferring less torque per side, limited-slip differentials are generally smoother and quieter than locking differentials, but still sometimes "chatter" when transferring torque to the wheel with traction."

-Ams oil website.