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View Full Version : 2 way or 1.5 LSD?


cumbewong
12-24-2009, 01:57 PM
I've searched but I haven't really quite found the answer I'm looking for.

I basically want to know which is better to DD with, 2way or 1.5?
-less tire wear?
-less oil management?

I know that 2way performs better for drifting, but I drift every here and there. And I know that 1.5 will do the job just fine.

killer240
12-24-2009, 02:00 PM
open diff is good for dd
weld is not bad for dd
go 1.5

Sonic Motor
12-24-2009, 02:02 PM
I've searched but I haven't really quite found the answer I'm looking for.

I basically want to know which is better to DD with, 2way or 1.5?
-less tire wear?
-less oil management?

I know that 2way performs better for drifting, but I drift every here and there. And I know that 1.5 will do the job just fine.

You pretty much answered your own questions. haha. Open diff is best for daily, but shitty for performance.

2 way is great for drift and daily, but is really noisy. 1.5 sounds like it suites you best.

cumbewong
12-24-2009, 02:08 PM
yeah, its just really hard to decide.

so 2way you have to change the oil more often right?

2way
change oil often
makes more noise
good to dd
excellent for drifting
1.5
good to dd
not as much noise
good for drifting but not as good as 2way

i don't really mind the "noise" so i think i'll go with 2way? ahhh idk! LOL

LayNLow
12-24-2009, 02:16 PM
Any clutch diff youll have to change the oil more often than others, it doesnt really matter if its 1.5way or 2way.

s13gebala
12-24-2009, 02:17 PM
ull start minding the noise when ur cars clunking around parking lots

g6civcx
12-24-2009, 02:59 PM
The noise goes away after proper break-in and about 5k miles. Using the correct fluid also helps a lot.

tkocrewsr
12-24-2009, 08:36 PM
2way is full lock on accel and decel
1.5way is full lock on accel and partial lock on decel
I got a carbonetic for quite operation and i am more of a road race guy,but any diff does recommend often fluid changes.

240sxfamily
12-24-2009, 08:39 PM
weld your diff, cheaper.

ericcastro
12-24-2009, 11:03 PM
1.5 for you.
if you drift pretty rarely, then i will assume you lifting means you want to exit a drift before a spinout or you hit something.
a 2 way wont let you out of a drift as fast as a 1.5

DataXUnknown
12-24-2009, 11:56 PM
I have a nice tomei trax advance diff, it's a 2-way and extremely aggresive. It's set to full lock and it was DD as well as tracked. I mean if your creating a great drift car build to compete with, i would go 2-way, otherwise just simply do 1.5 way. You won't really need much more if your not going to go crazy with it and compete and such.

But if you do decide to go with a 2-way, PM me and I'll give you a good price on the Tomei.

Black_Demon
12-25-2009, 12:37 AM
the open diff. is a really good daily driver. i use to run that until people kept telling me about bumps...
as of right now, I am currently running on a welded diff.
but correct me if i am wrong, but i have heard some of my friends who drive with a open diff. and it is lowered and some slammed and pretty stiff, and they sometimes get stuck on driveways, bumps, etc. where they had to get some help to push their car. This they say is due to the open diff. having only one tire spin.
has that happen to you guys yet?

HYPNOTIK
12-25-2009, 03:06 AM
With subframe spacers, and solid motor/tranny mounts you can't even tell my car has a diff. If you can't dd a car because the diff makes a little noise then don't drive a modded car, get a Cadillac.

cumbewong
12-25-2009, 03:22 AM
1.5 for you.
if you drift pretty rarely, then i will assume you lifting means you want to exit a drift before a spinout or you hit something.
a 2 way wont let you out of a drift as fast as a 1.5

thankyou. so i've decided to get a 1.5. what's brand do you guys recommend? :boink:

S13 curtis
12-25-2009, 03:39 AM
go 1.5 way.

2 way, you might as well do a welded diff
2 way clunks like a motherfucker around turns my buddy had a kaaz 2 way and its pretty loud around turns.

DriftReady_S14
12-25-2009, 03:50 AM
the open diff. is a really good daily driver. i use to run that until people kept telling me about bumps...
as of right now, I am currently running on a welded diff.
but correct me if i am wrong, but i have heard some of my friends who drive with a open diff. and it is lowered and some slammed and pretty stiff, and they sometimes get stuck on driveways, bumps, etc. where they had to get some help to push their car. This they say is due to the open diff. having only one tire spin.
has that happen to you guys yet?

Yes, this has happened to me a few times. One scenario is I was dropping off my girl to work and as I pull to the drive way slowly cuz my car is pretty low but not as slammed as most on here, the wheel that had traction was up in the air so I got stuck and couldn't reverse or go forward. I had to get out the car and push it.

smelly240
12-25-2009, 07:03 AM
my kaaz 2 way is clunky and loud and poppity pop poppity pop.

it locks ultra hard tho.

g6civcx
12-25-2009, 09:27 AM
1.5 for you.
if you drift pretty rarely, then i will assume you lifting means you want to exit a drift before a spinout or you hit something.
a 2 way wont let you out of a drift as fast as a 1.5

Best advice in the whole thread.

Lifting on a 2way is just about the same as yanking the handbrake.

Dousan_PG
12-25-2009, 10:29 AM
I far prefer a 1.5 way for drifitng
it feels fantastic
flybert drove my car, he's changing to it now
and azndoc loves his 1.5 way as well!

I use a cusco
flybert tomei
azndoc os giken

ericcastro
12-25-2009, 11:27 AM
I far prefer a 1.5 way for drifitng
it feels fantastic
flybert drove my car, he's changing to it now
and azndoc loves his 1.5 way as well!

I use a cusco
flybert tomei
azndoc os giken

/thread




and to the guy somewhere above in this thread,
yes, open diffs can get stuck when a car has coils and tries to angle up a drive.
BTW, i ran a VLSD for a year.
Hooks as the drag guys say.
Good take off speed.
Drifts pretty good and will let you out when you lift.
doesnt chatter on corners.
will let you maintain corner grip during autocross.
i would rather have a 1.5 2way, but if the economy gets you,
VLSD is great for daily.

articdragon192
12-25-2009, 11:35 AM
So question... how do you pull out of a drift with a 2 way lsd?

ericcastro
12-25-2009, 11:42 AM
So question... how do you pull out of a drift with a 2 way lsd?
im on a welded, lol

lift, clutch in, fingers crossed ??
just guessing :)


i think you get used to how early you need to lift and get the car weight coming back

95KA-Turbo
12-25-2009, 12:01 PM
I far prefer a 1.5 way for drifitng
it feels fantastic
flybert drove my car, he's changing to it now
and azndoc loves his 1.5 way as well!

I use a cusco
flybert tomei
azndoc os giken


I have a OS Giken 1.5way as well. It is by far the best diff I've experienced ever! It virtually makes no noise and is like driving around on an open diff until you either clutch kick it or mat the gas. My car feels extremely stable in wet weather, I feel like I can grip drive it easier, but I drift my car and it is wonderful with that too.

NMs14.5kouki
12-25-2009, 12:47 PM
I far prefer a 1.5 way for drifitng
it feels fantastic
flybert drove my car, he's changing to it now
and azndoc loves his 1.5 way as well!

I use a cusco
flybert tomei
azndoc os giken

i have a kaaz 1.5 way, i love it for drifting and grip driving. great control from them while drifting as well.

Dousan_PG
12-25-2009, 12:53 PM
So question... how do you pull out of a drift with a 2 way lsd?

drifting is just car control
depends on the situation and your car setup
i think 'pulling out of a drift' is easy but ive been driving for some time. im no expert but it depends on whats going on and how fast your going, angle, etc etc

brndck
12-26-2009, 11:41 AM
after having a kaaz 2 way i switched to a carbonetics 1.5 and i much prefer the 1.5 way.
the lockup is less aggressive and i feel it allows me to have a smoother style when drifting. the carbonetics one also clunks less than the kaaz one did and the life of the clutch plates is longer than the kaaz unit also.

i would recommend 1.5 way unless its a track only car. just my .02

!Zar!
12-26-2009, 12:36 PM
I've only run welded and 2way, so I can't comment on the 1.5, but from what it seems like, all the "pro" drifters run 1.5 like the Falken cars and what not. So I'll probably end up trying it out to see what all the hype is.

BlitzRPS13
12-26-2009, 12:46 PM
Any clutch diff youll have to change the oil more often than others, it doesnt really matter if its 1.5way or 2way.

Truth.

I have a nismo 2 way... really agressive and clunks like crazy around sharp corners when i'm going slow.. but it locks up super fucking hard when i want it to. I don't really care about the noise... just like my osgiken clutch.. super noisey but you learn to appreciate the sounds of a car like this as you always know what's going on.

lilrusty
12-26-2009, 02:58 PM
im running a nismo 1.5 and its way better than a vlsd and open for the street. not as noisy as a welded when i had one but you do feel it lock on acceleration. stick to 1.5 or vlsd for the street and some track.

nathanong87
12-26-2009, 03:44 PM
i personally run a kaaz 2way, it clunked, it locks hard, does it's job i suppose. never used a 1.5 way, so i can't compare them, but i'm not dissapointed with a 2way in any way.

Future240
12-26-2009, 03:55 PM
This thread has some nice info in it. Subscribed.

word sux
12-26-2009, 07:21 PM
can't most or at least some 1.5 ways be changed to a 2way? i think the nismo can. in that case you can always go to a 2 way if you change your mind. the best way to decide is to drive a car with a 2 way. I prefer the tomei 2 way technical trax. I had one in my old coupe and loved it. But on the other hand i tryed my freinds car with a kazaa 2 way and didn't really like the feel as much.

mmdb
12-26-2009, 08:02 PM
Either a 1.5 or 2 way clutch type cause additional tire wear. The wear could be trimmed or lessened by adjusting the initial torque setting. You will most likely get clunking from any clutch type out there. I have personal experience with Kaaz set to 80% lock and it wasn't pleasant to drive at all on the street. Although, another user on Nissanforums.com said he noticed very little or no clunking when he set his lock to ~60%. Currently, I'm using an OS Giken unit and it is very, very smooth and drivable. I do get an occasional clunk here and there, but it's almost rare that it happens.

Another thing I noticed using the Kaaz 1.5 with treated plates vs. the OS Giken is how quickly the unit locked. Kaaz makes its presence known with a harsh and quick "clunk" whereas the OS Giken is very smooth and seamless. Keep in mind the OS Giken is maybe $300-400 more than a standard Kaaz unit. Also, All clutch type units will require oil to be changed after hard driving, etc. Another issue is clutch plates will eventually wear out. Both companies do offer a rebuild option, and I'm sure others do as well. So keep that in mind. Though, speaking with professional drivers and various shops, the OS Giken LSDs work perfect after 3+ years of abuse.

Also you might want to read THIS LINK (http://74.125.95.132/search?q=cache:jSvOpxa418QJ:grassrootsmotorsports. com/articles/whats-diff/+os+giken+grassroots+motorsports&cd=1&hl=en&ct=clnk&gl=us&client=firefox-a) to get a better idea of the different types of LSDs out there and their respective reviews.

rb25_s13*CHUKI
12-26-2009, 08:13 PM
Get nismo gt 1.5-2-way adjustable. Its great! Makes aboslutly no noise what so ever. no clunking nothing. Locks up just as good as my friends cusco 2-way. the only noise you'll get Is your gonna hear your tires hugging in parking lots.

Slide~or~die
12-26-2009, 08:45 PM
Im not expert just and experienced user lol

i have a welded lsd in my 240 and a tomei 2 way in my 350z.

and the 2way is kind of like a welded in the sense that when there no pressure from the drive train its not locked(like welded)

If ur not on good tires(life) then in the rain both will be a little hairy! (more so welded) but a 2way will have some give, u just have to learn to be easy in the wet corners.

Tomei= aggressive which in return gives a lot of clunking!(w/ tomei oil) and it will sound like some one is hitting ur car with a hammer but only in like hard turns(like u turns or sharpish turns)

Clucking isnt so bad untill after the oil gets a few miles in it thats when the tomei seems to get loud? lol havent tried with other oils but am going to this time because tomei oil is expensive and cost stupid money to get shipped.(its biohazared)

GL, and remember any diff will need attention and just drive smart!

Shadowhunter
12-26-2009, 09:21 PM
I run a Kaaz Super Q 2 way for a daily. It is aggressive yet predictable. It is easy to induce oversteer and like others were saying it's hard to get it to quit sometimes. I must admit fucking around in the rain will easily Send your rear end out and keep it out leading to some close calls.
I would say it really depends on where you live, if you live in a place like Cali then it's dry 90% of the time here so I am not so worried about rain driving, and when I have to I am super conservative with the throttle. I really cannot compare with a 1.5 way but I am happy with the aggressive nature of the LSD as it is great for track and yet very predictable for the street. Do with it what you will.

word sux
12-26-2009, 11:53 PM
kinda off topic but funny still. my buddies coupe has a kaaz that is set up around 80% lock and clunks alot. recently he got a set of stance coilovers and theres somthing wrong with the mount, the spring keeps spining and clunking when he turns. so now when hes driving through a parking lot it sounds like a hes being attacked by children with hammers everytime he makes a turn.

tkocrewsr
12-27-2009, 12:11 AM
Im not expert just and experienced user lol

i have a welded lsd in my 240

I wish i had one of those.

azndoc
12-27-2009, 01:50 AM
I don't know about you pussies.

But I actually love the clunking noise.

Or people riding in it who don't know what it is and think your car is falling apart in the rear.

But yes I have an OS Giken. Its pretty cool.

Slide~or~die
12-27-2009, 08:07 AM
Originally Posted by Slide~or~die http://zilvia.net/f/images/zilvia/buttons/viewpost.gif (http://zilvia.net/f/296805-2-way-1-5-lsd-2.html#post3204532)
Im not expert just and experienced user lol

i have a welded lsd in my 240 AND A TOMEI 2WAY in my 350Z



(tkocrewsr (http://zilvia.net/f/members/tkocrewsr.html))I wish i had one of those.


FIXED that for u! :rofl:

cumbewong
12-27-2009, 08:28 AM
wow! i got alot more info than i asked. thanks guys, i learned alot. :D

Future240
12-27-2009, 10:38 AM
^Likewise. Perhaps this one should be a sticky.

Mike_GruiZinga
01-20-2010, 06:30 PM
I run a Kaaz Super Q 2 way for a daily. .

I havn't read many reviews or comments on the new Super Q Kaaz.

How does it behave on the street during normal driving? Does it chatter and clunk in parking lots and sharp turns? It's advertised on being much quieter than there old diff. Do you agree?

San Diego Kouki
01-08-2013, 11:12 PM
In the spirit of not making a new thread. I'm installing my Tomei 2 way pretty soon and after break in you're supposed to change the oil. Is the oil container that comes with the diff enough for both the break in and the oil change immediately after?

EDacIouSX
01-08-2013, 11:29 PM
In the spirit of not making a new thread. I'm installing my Tomei 2 way pretty soon and after break in you're supposed to change the oil. Is the oil container that comes with the diff enough for both the break in and the oil change immediately after?

iirc its one can per change.

brndck
01-08-2013, 11:40 PM
In the spirit of not making a new thread. I'm installing my Tomei 2 way pretty soon and after break in you're supposed to change the oil. Is the oil container that comes with the diff enough for both the break in and the oil change immediately after?

get a second can. worst that will happen is you'll have extra. iirc one can is not enough for two changes.

derass
01-09-2013, 12:25 AM
open diff cover takes 1.3L vlsd takes 1.5L how much is in that can, 2L?

also, a good alternative for that $50 specialty oil, recommended by a kaaz rep, is any mineral (non-synthetic) GL-5 80w90 (i use Castrol Hypoid C) with a bottle of ford traction modifier. comes in handy, because you should be changing the oil on a mechanical diff frequently. i usually do mine every 2-3 events and it still comes out clear and without too much debris. with every engine oil change should be good when street driving.

San Diego Kouki
01-14-2013, 03:16 AM
Cool thanks for the info, I'm definitely buying another can before the install.

godsmack
01-14-2013, 05:09 PM
I've drifted and daily driven on all but an open diff. VLSD was the best for daily driving and my favorite for daily and track purposes was the 1.5 way. I got a nismo 1.5 way and I wouldn't go back to the 2-way that I had. Drifting with it, in best terms, felt more predictable and controllable. 1-way wasn't bad at all but felt more like a VLSD than anything.

San Diego Kouki
01-21-2013, 02:20 PM
What hardware should be replaced when installing a new lsd? I see aluminum diff bushings, lower mounting stoppers, the gasket and the side seal.

derass
01-23-2013, 02:53 PM
2 way is certainly the best choice if you want to do any serious drifting (and get better at it). the lock under deceleration is key for doing big initiations and maintaining drift. i switched from vlsd after lifting the throttle would send me the way i was countersteered. not good. if you watch drift bible they compare vlsd vs mechanical in a miata, and the mechanical is able to do much tighter donuts because of its stronger lock characteristics.

people will argue that that welded is just as good or even better than a 2 way. but they are wrong. the fact that they are constantly locked make vehicle rotation difficult. i have spoken with multiple drifters who describe to me how you have to fight the car to turn in and transition. welded is cheap but certainly not the best.

1.5 is good for road racing because it offers maximum traction at corner exit and helps decelerate the car when entereing the corner without creating oversteer.

in response to the OPs question, 1.5 would be only marginally better than 2 way when steet drving in terms of noise and tire wear. the 1.5 will clunk less when coasting (in gear) around a turn. other than that they will behave the same.

dudermagee
01-23-2013, 03:00 PM
old thread is old
but I love my s15 helical diff for daily duties

Rampage
12-09-2013, 10:08 AM
I detect a lot of trolls about to flame for this question, but here is my situation. I DD my Kouki and don't plan to go too serious with drifting as of now. I just want to know if a 1.5 way will lock up when a wheel is in the air on a drive way or something like that. My own driveway is hell, and I shoulda taken that into consideration before I slammed it lol Please guys, I know a 2way would work but this isn't my drift slut!

Rampage
12-21-2013, 11:43 AM
Anyone? Lol I reaaaalllly don't wanna start a new thread for this

Future240
12-21-2013, 12:13 PM
A 1.5 will. A torsen (helical) wont. You don't need a 2way for a daily.

Rampage
12-26-2013, 09:39 PM
A 1.5 way will get the job done you say? Thank you for your help, Future! I was hoping it would work..