Will SR differential work?

[RagingPanda]

I'm thinking about get an aftermarket LSD(Kaaz) and was wondering which LSD will also work for all three engine(CA, SR, and KA)? Because my motor is dying and I want to put it through some abuse before I'm getting a swap, don't know yet but probably CA, so I don't want to replace the LSD when I get the swap. I heard SR differential will fits in for all. Is this true? Basically I need a LSD for my KA24DE that will also works for SR and CA, mainly CA. THankss

[captain nismo]

AFAIK the LSD will work with any of the suggested engine sets.

[EazyBreazy]

you dont have to have an lsd to murder a motor. you can do it pegleged if you have too

[240marcuSX]

yes, the motor has no influence on which lsd will fit, same thing with driveshafts, as far as SRs and KAs go, i know that for sure. but i dont really know much about CA's but i cant imagine that it would be different, just dont want to post misinformation.

[Dattebayo]

If you live in the states, just go for a J30 diff. I know its not after market or whatever, but its cheap and it'll get you the experience you want to handle a lsd. You will have all that extra money left to spend on your CA.

[RagingPanda]

If the motor has nothing to do with which LSD can fit in the car, why do companies have different type for different engine? Just their marketing ways? thanks 240marcuSX but do anyone know for sure it doesn't matter when putting in the CA? he's probably right but I want to make sure because $1000 is a lot of money and frankly my pockets are extremely shallow.

[IvoryJ30t]

because different cars come with different engines.

just make sure you get the correct differential for your car.

the engine has nothing to do with the type of rear end your car has. the engine doesnt care.

[RagingPanda]

Thanks IvoryJ30t. I'm trying to save all the money I can for JIC MAGIC and CA swap so J30 LSD might be possible instead of Kaaz 1.5-way. What is a reasonable price for a J30 LSD. I will go to a junk yard and I don't want to get rip off. How can you tell if it's still in good condition or not? Is there a way or just guess.

[IvoryJ30t]

sorry, i skipped out for a little while. anyway, if you can hold out, its better to get the clutch type diff [1.5 way is best for street].

it will perform better. the viscous limited slip diffs wear out after a while. my j has 108K miles, and the viscous is getting weak. it still works, but not as strong as id like. junkyard j30 vlsd's go for a couple hundred.

the KAAZ 1.5 way is actually the diff im going with when i replace mine.

when you get it [if you dont get a j30 diff] make sure you specify the year of your car, and remember you have a R200 non-lsd rear end.

[RagingPanda]

I know that Kaaz 1.5 way work when you brake it kicks in and 2 way is always active, either the car is accelerating or braking. If 1.5 is best for street what about 2 way? Any personal experience and opinion on it? I've also heard about clutch type differential. Is that the same thing or somewhat different and more expensive? With that you can repair it( not really expensive) if it's broke.

[IvoryJ30t]

ok, KAAZ is a clutch type diff. like nismo and cusco.

a 1.5 way diff will lock on acceleration, open in neutral, and slightly apply in a downshift decel.

a 2 way will lock on accel, open in neutral, and lock in downshift decel.

the reason that 1.5 way is better on the street is because if a 2 way diff is used around a slippery corner with a downshift, it will cause you to oversteer. if your comfortable with the way it handles, a 2 way is fine for the street, but a 1.5 way is a little more optimal because its effects are greatest on acceleration which is when you need it the most.

it just makes day to day driving a little easier with a 1.5 way.

now, the clutch type diff can be rebuilt. a viscous type diff needs to be replaced.

a viscous type diff is quiet, and smooth in it operation.a clutch diff will chatter in parking lots and when taking sharp corners at low speed.

typically a clutch diff will last longer than a viscous. if you get a junkyard diff, half or more of its useful life has be expended.

your gonna pay twice as much for a clutch diff, and have a hard time installing it, or pay for it to be installed, but it is the better choice in the long run and in its performance value.

[RagingPanda]

Don't want to be a bother but one more question. If Kaaz is a clutch type LSD why does it said viscous for the LSD type when I looked in the product list? I have a 1990 S13. Most of their products are viscous. That's my only confusion. Thanks

[IvoryJ30t]

because theres a difference in the diff case between the open and viscous differentials. you need the diff for a non viscous case.

[RagingPanda]

So basically they're all clutch type like you've stated. The the LSD type on their product list is for the case and since I have open differential I should get one for open differential instead of viscous lsd? Just making sure. I still don't get why Kaaz posted different engine type since it doesn't matter what motor. For viscous lsd they posted for CA18DET and SR20DET but for my(open) it's for CA18DE and SR20DE....confused idiot like me. BTW which is better quality, NISMO or Kaaz. Thanks a lot IvoryJ30t

[IvoryJ30t]

kinda fell off the radar. anyway, the concensus is that the nismo and kaas are very similar units. i would go with the kaaz unit just for the difference in price. ill actually get you the exact part number you need [90 s13 open diff]

[IvoryJ30t]

its gonna be kaaz part # DBN2620 [1.5 way] or DAN2620 [2 way]

[IvoryJ30t]

but it also says you need the VLSD output shafts for it to work for you. i know there are some j30 output shafts that will bolt to your axles [gotta search, i think its 95-97 J30]

i forgot about that because i dont need output shafts because i have a vlsd diff in the first place.

to figure out the output shaft situation, look up the j30 diff in s13/14 information.

see what they do about it, because the output shafts that they use are the output shafts you will need with the kaaz.

and upon investigation, the kaaz/nismo units are on par with each other as some of the best.