OBX Helical LSD for S13 [Archive] - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

NismoSilvia270R

12-10-2005, 07:37 AM

I saw that yesterday too. ima buy one next week if bills and christmas shopping dont kill me first.

i read some of the posts by the civic guy running 500hp [turbo+nitrous] through it for daily driving and drag strip. after several passes and blowing 5 teeth off third gear, the diff was spottless and he liked it.

idc too much as long as it doesnt explode. but anythign is better than my opendiff, like wtf.

450shipped isnt bad at all, but im worried about finding diff bearings and shims. i can reuse the shims, but the bearings are just 'iffy'. plus i cant buy them from my work (national auto). burn

anyone else getting one give feedback

Xren17

12-10-2005, 09:14 AM

Why is it only for an S13? Haven't they always been interchangeable with S14 except that you have to switch the diff cover?

SoSideways

12-10-2005, 09:57 AM

Why is it only for an S13? Haven't they always been interchangeable with S14 except that you have to switch the diff cover?

I think you just answered your own question...

BigVinnie

12-10-2005, 11:08 AM

blackflag_Rms13

12-10-2005, 11:22 AM

Idunno about this. Haven't had that great of an experience with OBX... POS Short Shifter, glad I got rid of it... Price seems alright, but idunno, I never really trusted Ebay parts.

NismoSilvia270R

12-10-2005, 11:40 AM

Dunno know about that OBX or the seller.
It doesn't state if it is 1, 1.5, or 2 way, it just states that it is helix shaped (Helical).
There is no mention of how many clutch disc the LSD has, it seems pretty iffy, IMO....

'dunno know' why you didnt realize that you answered your own question. or that the description kind of hints that it isnt a clutch type, therefore no clutch discs.

Idunno about this. Haven't had that great of an experience with OBX... POS Short Shifter, glad I got rid of it... Price seems alright, but idunno, I never really trusted Ebay parts.

Idunno why you didnt correct him on this before i did. and IMO because they arent made by ebay or a no name brand or apc-like brand, its worth a shot. to me, OBX is a little better quality than, oh, ssac or that 'd-tuned', i think it is that makes suspension links(dont quote me on the d-tunedc thing, i cant remember what the company is called, but i hope you get my point).

i just think that the generic housing looks cheap when compared to other differentials. it looks like a diecast or pewter housing, lol. doesnt matter, im still in.

EDIT again: i love the new edit window. +1 for vb 3.5

sykikchimp

12-10-2005, 11:43 AM

Helical LSD's do not have clutch discs. They are all essentially 1-way lock. They can only operate as long as the drive train is engaged, otherwise they work exactly as an open differential would.

Helical lsd's don't work anything like a clutch type lsd.

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

Enjoy.

ThatGuy

12-10-2005, 11:43 AM

I think you shouldn't be posting links to EGay.

trsilvias13

12-10-2005, 11:49 AM

im going to ask my friend at obx to see if he can hook it up. i wonder what did they copy for this. I know obx diff are good. I know about 4 people running them on honda's drag racing them. 2 of them are daily driven 217hp and 244hp. two is track only with 627hp and 660hp. BOth broke axles. The only problem is installing them. Need someone who knows how to install and check shims.

NismoSilvia270R

12-10-2005, 11:54 AM

BigVinnie

12-10-2005, 11:54 AM

sykikchimp

12-10-2005, 12:16 PM

it depends completely on your situation.

by having the wheels locked together during decel you are hindering the cars ability to rotate unless you are generating an extreme amount of slip (>~5%) aka drifting.

Long story short..

HLSD = usually better for grip driving and nice street manners
Clutch type = better for drifting

RiversideS13

12-10-2005, 01:04 PM

I think you shouldn't be posting links to EGay.

sorry but there was the only resource to see the product. the seller looks like is obx's internet sells because he sells tons of obx products.

sideview_180sx

12-10-2005, 01:18 PM

so buy it and use it.

JigokuZ

12-10-2005, 02:47 PM

somebody hurry up and get it and post your result!!!!

that180guy

12-10-2005, 07:00 PM

i concur, honda folks swear by it. maybe it is good? but id still prefer a clutch type.

SoSideways

12-10-2005, 08:43 PM

I see..... The helical is a "1way locking" diff that uses gears instead of clutch types. What are the advantages if it only works like an OPEN diff when torque isnt delivered through the drive shaft??????
Wouldn't you want grip and power to both wheels like the clutch types?

I don't see what you're trying to ask...

But if you're wondering, a helical diff will put down power to the outside wheel in a corner, not the inside wheel with no grip, thus pushing you out of a corner and tightening your line when you accelerate at/after the apex.

ryan hagen

12-10-2005, 10:05 PM

i just got my s15 hlsd put together, took me 3 years to get all the parts for it, now this thing comes out, damn it woulda saved me some headache, i ll get one this spring for my 2nd 240sx.

ranisron

12-10-2005, 10:58 PM

ok... let's summarize this shit:

Unless someone is willing to buy this OBX HLVD unit and tell us whether it is good/bad, we are simply speculating...

so, someone buys this!! :p

oh, under the *bay description, it didn't say anything about output shaft... so....

WILDACEX187

12-10-2005, 11:15 PM

500 bux is the same price i paid for my s15 hellical shipped. i say go with wat works.

ranisron

12-10-2005, 11:40 PM

^now that's a pretty damn good deal.

WILDACEX187

12-11-2005, 02:15 AM

so that lsd uses the stock shafts too? thats kind of a plus if they ever break.

NismoSilvia270R

12-11-2005, 08:53 AM

whered you get the s15 one for 500?

ill be ordering an obx next payday, so keep speculating or whatever..

WILDACEX187

12-11-2005, 12:37 PM

i got it through a ebay seller that had one without the shafts. i emailed him and asked him to find me one with the shafts. he emailed me a week later with pix of it and price. he wanted 5 something but i got it down to 500 shipped :bow:

raging panda

12-11-2005, 01:07 PM

i am keeping an eye on this thread, someone please buy it!!

im too broke due to holidays otherwise i might get one

Driftek

12-11-2005, 01:25 PM

Dunno know about that OBX or the seller.
It doesn't state if it is 1, 1.5, or 2 way, it just states that it is helix shaped (Helical).
There is no mention of how many clutch disc the LSD has, it seems pretty iffy, IMO....

HLSD's dont work the same way VLSD's do...

If im not mistaken an HSLD is just a fancy name for a Torsen LSD http://auto.howstuffworks.com/differential10.htm

VLSD or viscous (im sure you allready know i was just clarifying for others) works with clutch packs.
http://auto.howstuffworks.com/differential9.htm

Clutch style LSD's are different as well but not as different as you may think....
http://auto.howstuffworks.com/differential8.htm

Hope this helps anyones desicion.... If I had the opp. to go back and not buy a 700 dollar S15 HLSD i would go with the 425 dollar version that OBX sell's (They dont make this product, they just sell it)

-Driftek

Silverbullet

12-11-2005, 01:31 PM

Dunno know about that OBX or the seller.
It doesn't state if it is 1, 1.5, or 2 way, it just states that it is helix shaped (Helical).
There is no mention of how many clutch disc the LSD has, it seems pretty iffy, IMO....

dawg. 1,1.5,2 way LSD are clutch types. A Helical LSD is the sme as a torsen or a gear type. They engage smoother since there is no clutch engaging and disengaging. They lock under acel, im not sure about deacel but im assuming it dosnt lock so its similar to a 1 way if that is the case. Also, you must have both wheels on the ground for it to work. If one wheel is the air, it acts like an open diff. Same with if one wheel is on ice. You will start to have haunting memories of one wheel wonder again hahaha!

Anyone got a link? Im willing to try this if it has a life time replacement contract.

//edit. DAMN i just noticed everyone called this post out LOL

BigVinnie

12-11-2005, 01:43 PM

dawg. A Helical LSD is the sme as a torsen or a gear type.

I've never heard it called a helical before... Always used the term locking diff or torsen, Helical is new too me..... Torsen is the name of the design that I am more familiar with. Appoligize for the questioning.......

Anyone got a link? Im willing to try this if it has a life time replacement contract.

Link was removed because it was an ebay link.......

go240

12-11-2005, 01:44 PM

interesting stuff, now i have to go on ebay and find it myself to see lol

Ian

12-11-2005, 03:40 PM

It's made by OBX...do you really want something made by OBX in your drivetrain?

seriously.

Driftek

12-11-2005, 07:11 PM

It's made by OBX...do you really want something made by OBX in your drivetrain?

seriously.

I doubt that OBX makes this.....

ThatGuy

12-11-2005, 07:15 PM

It is sold by OBX, not manufactured. That was already covered in this Thread.

Reading Rocks! :rawk:

driftstyre

12-11-2005, 07:26 PM

"VLSD or viscous (im sure you allready know i was just clarifying for others) works with clutch packs."

A viscous diff does not have clutch packs, it has a viscous coupling unit. In the VCU are plates and a very gooey goo. The diff is completely open until the plates start moving (one wheel spinning at a different rate than another)and heating up the goo. The goo expands and becomes solid until it cools again.
Viscous are open until slippage, clutch type is locked until a certain slippage is achieved, helical/gear type/quaife type are constantly varying, never locked or unlocked.
In the november issue of Option 2 they review the OBX HLSD in an Integra Type R and the guy is giving a thumbs up. I wish I could read his review.

Var

12-11-2005, 07:38 PM

i can't believe this. So many threads about which type of LSD does what and this turned intot the same thing.

ThatGuy

12-11-2005, 08:10 PM

Of course it did Var. In order for it not to have turned into this, people would've had to utilize the SEARCH function. Now why would they do that, when we have so many helpful individuals to spoon feed them? It's no fun to do things the hard way and find out on your own. Who needs experience when you have someone to guide you through everything.

Hahaha, there is nothing wrong with these questions though guys. Just busting your balls a bit. The more Threads we have full of this information, the easier it is to find it when you do search. :D :bow: :D

Silverbullet

12-12-2005, 01:00 AM

I've never heard it called a helical before... Always used the term locking diff or torsen, Helical is new too me..... Torsen is the name of the design that I am more familiar with. Appoligize for the questioning.......

The H in the HLSD stands for helical. It is the same thing as a torsen or gear type as some would refer to. Torsen is probably the most common name.

95Blue240sx

12-12-2005, 09:54 AM

With the torsen type lsd'd isnt it bad to lift one wheel off the ground? I though that doing that would break a torsen lsd.

SoSideways

12-12-2005, 01:25 PM

With the torsen type lsd'd isnt it bad to lift one wheel off the ground? I though that doing that would break a torsen lsd.

Uh.... no....

The diff wouldn't break, and if I can think straight at this moment, you shouldn't get stuck because the helical gears will put the power down to the wheel with more resistance, the exact opposite of the stock open diff.

allmotorKA

12-12-2005, 01:33 PM

Uh.... no....

The diff wouldn't break, and if I can think straight at this moment, you shouldn't get stuck because the helical gears will put the power down to the wheel with more resistance, the exact opposite of the stock open diff.

With one wheel lifted, the HLSD acts like on open diff...like Silverbullet already said.

ranisron

12-12-2005, 01:59 PM

someone buy the damn diff and tell us what he/she thinks please. This thread is turning into another "what diff is this?" or "how a diff would operate" or "what diff is superior".... :p

tastyratz

12-12-2005, 01:59 PM

whats the torque bias ratio on the obx, and whats it on the s15 in comparison?

SoSideways

12-12-2005, 03:00 PM

With one wheel lifted, the HLSD acts like on open diff...like Silverbullet already said.

Well that's fine, but he asked if it would break, and I said no.

So basically, I was right about the not breaking part, but wrong about the not getting stuck part.

Sorry.

Been awhile since I've read anything on helical diffs, since I don't really have any interest in getting one, everything I've learned about them is now getting blurry hahaha

Var

12-12-2005, 03:26 PM

whats the torque bias ratio on the obx, and whats it on the s15 in comparison?

a relevant question at last.

raging panda

12-13-2005, 12:11 AM

http://www.honda-tech.com/zerothread?id=1249085

just saw this link on nicoclub, i dont think ill be getting one

go240

12-13-2005, 12:13 AM

http://www.honda-tech.com/zerothread?id=1249085

just saw this link on nicoclub, i dont think ill be getting one
interesting :tweak:

RiversideS13

12-13-2005, 02:40 AM

all companies have defect products. i found most people's argument against it just because it is cheap. lol but we still dont know how good it is till someone has ball to buy it and share us the story.

ranisron

12-13-2005, 06:06 AM

^werd.

Just remember that as long as we are informed, we make our decisions based on our own risks.

good info and good find. at least I have a VLSD with output shafts sitting at home

240shorty

12-13-2005, 11:43 AM

I read that honda-tech thread. Are they talking about the circlips on the halfshafts getting stuck behind the non-beveled teeth? I can't see any company failing to plan for that. Even a crappy knock off company. Once the circlip clears the gear it's fixed there permanently?

They could probably get away with installing the shaft without circlip. Once everythings in place and bolted down those halfshafts don't have THAT much play right? It might work for awhile. If/when it fails, they can rest well knowing that one more Honda has claimed it's rightful place - in the SCRAPYARD.

tastyratz

12-13-2005, 01:03 PM

ya know ive read through all those pages
http://www.honda-tech.com/zerothread?id=1158172
http://www.honda-tech.com/zerothread?id=1196320
http://www.honda-tech.com/zerothread?id=1206925
http://www.honda-tech.com/zerothread?id=1249085

and all I can find on people really bitching is axels sticking in fwd applications. This doesnt really matter or apply to us as some of you may or may not know... were not fwd :-P
I actually called obx from info I received on one of those threads:

OBX Products (26371456O)
1550 Rollins Road Suite M
Burlingame, CA 94010
US
Phone: +1 650 697 8766
Fax: 999 999 9999

Domain Name: OBXRACINGSPORTS.COM

Administrative Contact :
Tan, David
(JL11603)
[email protected]
405 Victory Ave., Unit K
South San Francisco, CA 94080
US
Phone: +1 650-873-8800

The first number is dead but the last one reaches someone live. I asked if there is any literature on the rear end but they said "the website is receiving an overhaul so theres nothing up to read for right now".
I also asked if they produced the diff for any other rwd applications and he told me "the one for the 240sx is the first and only one at this time".
I then asked the torque bias ratio on it and he didnt know, but took down my phone number and said I should get a call back with the information.
If it is an EXACT copy of the quaife unit then it should have the same torque bias ratio. As research I also just called quaife and was told they wont release that information, that it constantly varies, and that there isnt a bias ratio in it saying the wheel with the most traction gets it, somewhat dodging when I asked about if one wheel is off the ground. The guy kept referring me to the website and saying its constantly variable.

What we need is a distributor that can hold both in their hands and take pictures, or hell even someone who is willing to take highly detailed photos and post them up so others can pipe in with quaife photos to compare. Stop sitting here bitching about previously produced products and asking what an lsd is, save that for threads that could use it or just search. even better, get up off your ass and lets see what we can just find out about this damn thing. The only place ive found to carry it is the ebay guy, has anyone found any websites listing these at all? maybe a single picture of the actual unit? Other diffs sold like the nismo are 2 different parts when installed in a vlsd diff and installed in an open diff. what makes the diff need to be different with the 2 and will this install in a vlsd housing. all information that should be around.

RiversideS13

12-13-2005, 01:10 PM

^^^ wait..so OBX guy say the one on the ebay was the prototype than? since he say it "the one for the 240sx is the first and only one at this time".

240shorty

12-13-2005, 01:16 PM

I applaud your effort ^^^. Does the 'one wheel off the ground' thing really matter to us. I know I don't offroad my 240. I thought you could work around that by applying the brakes a little with the throttle? I would also like to see more info and some peoples experiences with this, but I'm not sure that I'm guinea pig material. I do need something for traction. My brother just welded his diff, so I'm one step behind. I want something like this for grip driving, not a clutch unit or Weld lock.

Riverside. I read that as the 240 being the first application of the diff, not the actual one diff being the only unit available. Maybe I'M loco?

Silverbullet

12-13-2005, 01:26 PM

I applaud your effort ^^^. Does the 'one wheel off the ground' thing really matter to us. I know I don't offroad my 240.

How low is your car and how stiff is your suspension? Not very im assuming if you dont see this as a problem. I tend to get one wheel spin going up ramps that i have to get at an angle with.

tastyratz

12-13-2005, 01:30 PM

one wheel off the ground is an example of a wheel with a complete lack of traction which may also apply in some extreme situations with one wheel on solid ice and one not which is something alot of us WILL encounter.

riversides13: no im not talking only unit as in only one ever made, its the only rwd application they currently produce at this time.

Im trying to veer this thread from obx sux or pure speculation to research and facts

SaskS14

12-13-2005, 01:31 PM

tastyratz

12-13-2005, 01:53 PM

great, thanks for looking that up! now that we have that information lets search forums related to the applicable cars and see what the threads have for input in those applications. a 300zx rear end is similar and threads on z forums will probabbly be very helpful.
Edit: if possible post links to threads on other 240 forums so any useful information posted is not overlooked on this. I will be double posting with my local forums on http://forums.240sxone.com/index.php?showtopic=5524

trsilvias13

12-13-2005, 05:21 PM

Well teh OBX guy stating that the 240SX unit is the only RWD application that they have is a lie.

I have the OBX Product Catalogue infront of me and so far I have seen applications for:

Acura NSX
Honda S2000
Infiniti G35
Lexus IS300
Mazda RX7/RX8
Nissan 300ZX
Nissan 350Z
Nissan Skyline GTS
Toyota Supra
Toyota MR2

In my experiencs the OBX people on the other end of the line usually donlt have a sniff. They carry WAY too much product and have pretty much doubled their offering in the last little while.

I would take anything a rep says with a grain of salt.

most rep dont know the technical side of things. even though the mr2 and nsx arre rwd, those lsd dont belong in the diff, the lsd would go into the tranny, and they would still encounter the same problem. I know who is actually buying all these parts to copy. Copies are yes made in china or taiwan. But OBX did buy their own machine to make some things. Im pretty sure this one goes overseas to copy. FYI.. obx copied ball-bearing turbo, full face manifold, intake manifold, and so on. I made suggestion for them to copy stuff so i can use them too. They cannot replicate clutch type lsd... and if they can i am pretty sure they are finding a way.. we will see clutches and brake pads.

and for all scion owner, did you know when u buy accessories from the dealer, not sure if it world wide, but at least in the bay area.. guess who made your stuff OBX.

now what that website for the ka intake manifold again? i want one but not full price. :D

tastyratz

12-13-2005, 06:37 PM

Searched about 4 major 300zx forums and found nothing. also never got a callback from obx, for some reason I doubt I will...
||
V teh spewn feedenz

the following link is a thread on club240 that contains absolutely nothing useful at this time (but maybe it will?)
http://www.club240.com/forums/showthread.php?s=&threadid=28844&highlight=obx+lsd

I found nothing on nissansilvia.com forums

http://forums.nicoclub.com/zerothread?id=148718
above youll see a thread about it on nico,
heres one on 240sxforums:
http://www.240sxforums.com/forums/showthread.php?t=70127
it contains the usual bitching but has the following useful link:
http://sportcompactcarweb.com/projectcars/0309scc_projslivia/

that contains a good writeup of installing a quaife hlsd along with nicely detailed photos. Now,
Lets see a few to compare from what we have available to us for now (if you have better pics post em up!... anyone?):

obx:
http://fuzionetics.com/ebay/new/LSD10528_2.jpg
http://www.fuzionetics.com/ebay/new/LSD10528_3.jpg
http://www.fuzionetics.com/ebay/new/LSD10528_4.jpg

Quaife with bearings/gear already pressed on:
http://sportcompactcarweb.com/projectcars/0309scc_projslivia06_z.jpg
installed
http://sportcompactcarweb.com/projectcars/0309scc_projslivia01_z.jpg
side profile
http://sportcompactcarweb.com/projectcars/0309scc_projslivia04_z.jpg

I dont know if that guy on ebay will be pulling down his photos after the auction so get em while their hot! maybe some mod pull em down and rehost them then just edit my post to contain different img tags

for those who cant see it at work or if the auction goes offline when you read this post SEARCHING :p obx description on egay:
The OBX Helical Limited Slip Differential powers both drive wheels under nearly all conditions, instead of just one. With an ordinary open differential, standard on most cars, a lot of precious power is wasted during wheelspin under acceleration. This happens because the open differential shifts power to the wheel with less grip (along the path of least resistance). The OBX Helical Limited Slip Differential, however, does just the opposite. It senses which wheel has the better grip, and biases the power to that wheel. It does this smoothly and constantly, and without ever completely removing power from the other wheel. Power to the ground!

ryan hagen

12-13-2005, 07:04 PM

if you want a better understanding of this thing look it up as a torsen. it is a pure mechanical worm gear differential. the name torsen is drived from "torque sensing" "torsen" it has 2 helical gears that are connected to the axles and at least 3 pairs of worm gears mounted in the differential. they are called element gears. each element gear has a worm gear in the center and a spur gear on the outsides.the spur gears mesh with the element gears matting gears if one elemnt gear roatates within the case. it mate must rotate also. so all three pairs of element gears must rotate at the same time. thats what my auto tech text book said, courtesy of Zexel Torsen INC. so basically the worm gears never want to go backawards, when they never want to get spun backwards they make the other wheel spin also, unlike a open diff that one spider gear can be moving slowly if at all and the others will just rotate around it.

so in other words there is no bias numbers or specs to give you, bias depeneds on availabe torque and available traction and lack of tracktion on one wheel.

s2000's have them stock i am pretty sure, some gm blazers and stuff also had them and camaro guys rob them for their cars. it pretty popular but kinda expensive, it doesnt wear out as fast at clutch type or v-lsd rear ends.
keep it in good fluid nad they are pretty bullet proof.

just make sure there isnt and pinion runout orbearing issues on the 2 pinion bearings when you install these and they should be fine. this will be awesome for road race and pretty good for drag race, i havent heard of power levels that they can handle yet.

ryan hagen

12-13-2005, 07:28 PM

i read some good reviews from honda guys, and one nice one on the nico link, but there are 2 sellers with them on ebay now, only a matter of time before we are swimming in these and i ll have to buy one for my second car, and my s15 diff will give me no advantage, damn it!!!!

NismoSilvia270R

12-13-2005, 09:53 PM

tastyratz

12-13-2005, 10:14 PM

so in other words there is no bias numbers or specs to give you, bias depeneds on availabe torque and available traction and lack of tracktion on one wheel.

http://www.globalwest.net/torsen_traction_differential.htm

theres a pretty good explanation of helical bias ratios.

Theres alot of information floating around with helical lsds, and one thing ive had pounded into me would be a torque bias ratio. meaning for example a 5:1 helical diff is capable of delivering up to 5 times the horsepower to the wheel with the most traction. in a 600hp car taking a corner 500hp would be delivered to the outside wheel and 100hp to the inside wheel. make sense? a higher t.b. ratio is better for someone who is more into drag/autox. A lower t.b. ratio would be better for someone who may do the occasional drift session but is more autox oriented. t.b. ratio can also be tweaked a bit via preloading.

The reaction force only happens if there's some resistance to your shove, though. If there was no resistance in our door latch example, the doorframe would just fall over. If there's no resistance from the other gear, it will just turn. This is why, technically, a helical limited slip isn't really a limited slip. Put one wheel on ice and the other on pavement, and there won't be enough resistance to prevent all the power from going to the ice.

That is what made me think of one wheel in the air or one wheel on ice.

Var

12-13-2005, 11:07 PM

It looks like the OBX address is about 1/2 mile away from my shop, and probably even closer to Falkon240.

tastyratz

12-14-2005, 08:37 AM

maybe you should pay them a visit, if its a warehouse and they stock things maybe they will have a showroom.... and maybe you can take a look at one of the units.... even maybe get some spy photos for us of the guts :-)

ryan hagen

12-14-2005, 09:09 AM

not all helicals are designed that way, although the t2r does look alot like the s15 h-lsd, from the pic i cant tell how the obx one is designed. the pic in my book is differnt from the t2r and the quife so maybe nothing that i said was relevent, as my book for this year school still tells us tricks and tips for gm 4 speed manual transmissions from the 70's:gives: little out of date but the teacher looked at 8 text books and this one was the best :(

trsilvias13

12-14-2005, 11:41 AM

i'll ask my friend when i see him which lsd they they copy from.. that if i remember

tastyratz

12-14-2005, 01:47 PM

that would be beneficial if you would, as well as someone local going down to see if they can examin a unit, or even someone who purchased one to get some more in depth pictures. I sent the following to the 1 guy who won it on ebay:

hey,
Im not sure if your part of the 240 forums but theres a large debate on zilvia.net about the obx diff and we could really use some insight from someone who has held one of these in their hands. Heres a link to the post: http://www.zilvia.net/f/showthread.php?t=96477
Your reply would REALLY be appreciated... Thanks!!

I really hope he replies. Looks like these things are showing up in a few more places too, Im willing to bet its just going to get cheaper...
http://www.trendgear.net/auto/LSD_obx_tg.jpg

ya know even if I find out these things totally bomb, I'm glad they came out. This is going to be a cheaper helical alternative on the market and will probabbly force jdm importers to lower their prices on s15 rear ends. One way or another I'm getting a cheaper hlsd in a few months from now than I would have gotten.

I dont know if this will help to compare/contrast but heres some pics of a s15 rear end
http://www.petta.jp/ebay/dec%2001%20008.jpg
http://www.petta.jp/ebay/dec%2001%20010.jpg
http://www.petta.jp/ebay/dec%2001%20011.jpg
http://www.petta.jp/ebay/dec%2001%20012.jpg

tastyratz

12-15-2005, 11:44 AM

got a reply from that email:
sure - I'm hoping to have it by this weekend so I can put it in - I'll let you guys know what I think - registering there is free right?

so I sent him one back asking if he could take pics and told him its free to register. cross yer fingers guys

i8yourfwd

12-15-2005, 11:47 AM

I can't wait...

240shorty

12-15-2005, 08:12 PM

I am definately interested to know the quality of this product, just like the rest of you. For my money, a helical is the only diff for me. For all the people running tricked out, expensive suspension, I just don't see the allure of ruining your cars handling in corners with weld lock or a 2 way unless you intend to use it for drift only and no grip driving. 1.5 is even less desirable for the road couse.

Regarding the one wheel off the ground thing. I've personally had not experienced it, as my suspension is pretty mild (Tokico's) and my car is dropped only about 2". But when I was looking into a torsen a couple years back for my classic mustang (they are available in the ford ranger fx4 stage 3? with the 8.8" rear) I looked at alot of 4X4 websites. There was some discussion about using the brakes to provide resistance for the rear to work with, thus powering the opposite side wheel. It wouldn't be optimal, but for the few instances where it might be necessary, it could be an acceptable work around.

Surely someone here has owned a Torsen equipped car. There are several OEM applications. If you've experienced a torsen in the northern winters, speak up, how was the traction on ice?

For what it's worth, I don't think looking at pictures will really tell us much. Even if we determine the two LSD's to be identical looking, that cannot tell us anything about tolerances or alloys or quality issues. Someone just needs to bite the bullet and insert the unit into their rearend. < Heh. That's not how I roll- I'm out.

ryan hagen

12-16-2005, 07:44 AM

if you do a search there are several threads about the s15 h-lsd, i think i was or was one of the first person(s) to say with out a shadow of a doubt that the way j-spec and raretrick were selling the out put shafts with 2 longs sides wouldnt work. its winter here so my car is put away but i have my s15 h-lsd finally installed after about 3 years. i had a long side shaft cut down by a machineist, only problem is i dont know if the spiral oil carrying grooves will work properly after having it cut down, i think they might spiral the wrong way on the opposite side. also the gt spec nismo lsd output shafts dont work right either.

240shorty

12-16-2005, 10:41 PM

Checked my cash flow today. Looks pretty good. More money than I know what to do with. So I went ahead and pulled the trigger. Ordered up the Ebay special OBX POS helical. I suspect it'll come toward the end of next week and I can install it on the weekend. I'll post up my initial impressions after I try it out. My car isn't far from stock power wise (yet), so it will do little to tell us how much power it can handle, but at least we can tell if it works. Wish me luck.

I may need vlsd output shafts. The auction listing states this: Fits ALL 1989 to 1994 Nissan 240SX 2.4L models including: Base, SE and LE. It also says ALL S13 S14 in the title.

Now, I don't know my standard equipment offerings well, but... didn't the SE come with vlsd? If so, how can it fit both base and SE trim, if they use different output shafts? Or am I missing something here?

tastyratz

12-17-2005, 10:11 AM

im not sure, I know alot of other diffs like the nismo have 2 different versions, chances are the people buying one will be coming from an open diff and I bet thats what they modeled around.

Duncan

12-19-2005, 11:09 AM

vlsd only came with hicas - so if you have that just remove hicas and keep your vlsd

"I may need vlsd output shafts. The auction listing states this: Fits ALL 1989 to 1994 Nissan 240SX 2.4L models including: Base, SE and LE. It also says ALL S13 S14 in the title".

this unit does not affect your ourput shafts - you are taking out the spidergears and converting an open diff to a torsen style - installing this unit is much more difficult than swapping input shafts - if you don't know how to do this properly you will get poor performance and short life - I would suggest having someone install it for you

SaskS14

12-19-2005, 11:15 AM

vlsd only came with hicas

In S13's in the States.

In Canada it was an option. My bro's '91 hatch non-hicas, non-ABS has VLSD, my moms '93 le coupe has it (with ABS) and my canadian SE s14 (american base) has VLSD and ABS.

Duncan

12-19-2005, 11:47 AM

In this perticular scenario he is in the states, however; I appreciate the correction - I didn't know that was an option in Canada :)

drew935

12-21-2005, 04:45 PM

It looks like the OBX address is about 1/2 mile away from my shop, and probably even closer to Falkon240.
Hey Var,
pm me the address. When I buy it, I'll just pick it instead and make it a lil road trip. :bow:

Var

12-21-2005, 05:28 PM

Hey Var,
pm me the address. When I buy it, I'll just pick it instead and make it a lil road trip. :bow:

tastyratz posted the address on page 2 of this thread. I dunno if it will be shipping out of that location though. but here's a link to the post

http://www.zilvia.net/f/showpost.php?p=877603&postcount=51

drew935

12-21-2005, 05:32 PM

oh ok thanks. I missed that one...

krustindumm

12-28-2005, 07:03 PM

basicaly every new gas powered pickup (excluding the SRT-10) comes with a Helical/Torsen/Zexel Torsen/Torque biasing type differential. They have a note in the owners manual to ride the brakes if one tire is spinning (tire lifted/on ice/etc..) to preload the differential and apply torque to the other wheel.

I have an OBX diff in my civic, but haven't had a chance to drive on it yet.

drew935

12-28-2005, 10:57 PM

I hope it that it works and lasts as good as my stock helical lsd in my civic.

white smoke

01-02-2006, 08:23 PM

WOW, so there is still no one who has even installed on of these yet?

240shorty

01-02-2006, 10:01 PM

Well, I'm sure someone somewhere has probably installed one by now. Whether that someone is on Zylvia or not is another question. I WOULD HAVE installed mine by now (or at least tried), except UPS decided to take it halfway here and stop. I still haven't gotten a definitive answer as to whether it fits open or lsd. Answering emails is obviously not a priority to these folks. But I will be installing mine just as soon (probably same day) as it arrives. I'm not sure if anyone else on here has taken the plunge yet.

daconkiftador

01-08-2006, 07:34 PM

bump keep us updated!!

tastyratz

01-27-2006, 11:42 AM

its creepy.... its crawly.... and it goes........

BUMP

in the night :)

anyone have any updates?

240shorty

01-27-2006, 06:22 PM

I'm still waiting. Guy who sold to me said he finally got insurance papers from UPS and would be sending out a new diff yesterday. No tracking info yet.

Theres a guy on FA who is supposed to be installing one, but just posted today that he hasn't got a chance yet. So it looks like everyone is waiting... still.

EDIT: Just got new tracking info today. Give it a week, I'll be back in business...

TougeNinja

02-01-2006, 08:16 PM

while we are waitin... what do u guys think about drifting on one of these or any other hsld?

i8yourfwd

02-02-2006, 01:46 AM

search. Hlsd is really shitty for drifting... Way better off with a welded diff... HLSD is meant for autoX/road racing...

TougeNinja

02-02-2006, 12:35 PM

still i think it would be better then a vlsd or open diff for sure.

i8yourfwd

02-02-2006, 12:57 PM

For drifting? Didn't I tell you to search on how a HLSD works? A welded diff is way cheaper and is way more effective for drifting. Now fucking search and find out how a HLSD works like I told you the first time. Maybe then, you'll understand why it's probobly not the best choice to spend $500 on for drifting.

OptionZero

02-02-2006, 01:31 PM

yes, but not ideal, especially when you can go welded for equal cost

if you want to drift at least make a halfway decent effort to setup the car correctly

chmercer

02-02-2006, 02:25 PM

ive heard of people running thoes in hondas and the axle holes on the sides being poorly machined, so the axles will fit in, but the play in there will cause the axles to perma-jam into the diff.

tastyratz

02-02-2006, 05:05 PM

ive heard of people running thoes in hondas and the axle holes on the sides being poorly machined, so the axles will fit in, but the play in there will cause the axles to perma-jam into the diff.

Which does not really matter in our instances due to the fact that output shafts within the diff are not considered wearing/replaceable items. Who cares if they get stuck. The reason the hondas axles go in and dont come out isnt entirely poor machining, its a design flaw. The snapring slot isnt properly beveled on both edges making it very hard to get out once it gets in there.

while we are waitin... what do u guys think about drifting on one of these or any other hsld?

I truly hope nobody answers your question, blatent ignorance like that deserves complete disregard. There is plenty of information on setting your car up properly, I posted about torque bias ratio, and theres even a faq on this. were willing to help people in the right situation, but not spoonfeed the lazy

TougeNinja

02-02-2006, 08:43 PM

ok well a simple no would have done the job but flaming me to hell to please your all knowing godly intellects that i am not worthy of always works to. lol

i8yourfwd

02-03-2006, 05:01 AM

ok well a simple no would have done the job but flaming me to hell to please your all knowing godly intellects that i am not worthy of always works to. lol
search. Hlsd is really shitty for drifting... Way better off with a welded diff... HLSD is meant for autoX/road racing... You mean that simple NO that I gave you the first time you asked? Then you asked the same stupid question again w.o searching which is WHY we told your ass.

tastyratz

02-03-2006, 05:24 AM

ANYWAYS back to the topic at hand and not get into the impact of cheese on our economy or some shit making this thread more cluttered.

! -obx!

TougeNinja

02-03-2006, 03:38 PM

thx tasty rats i agree.

240shorty

02-03-2006, 05:42 PM

I got mine in yesterday. I'll be putting it in sometime the next couple of days. Unfortunately, I've got my supercharger project to worry about too. Not really unfortunate, but the timing sucks. Too many projects at once.

EDIT: Differential Installed. For the benefit of anyone searching, I made a new thread for the review of this differential into my S14. I didn't want people searching to have to wade through 4 or 5 pages of info to get to the review.

Link:

http://www.zilvia.net/f/showthread.php?t=101109