Source for Quaife HLSDs? And Q about S15 diff.

[trackstar]

I will be in need of an LSD for my soon to be acquired open-diff S13, and in researching this site as well as others I have come to the conclusion that I need a helical LSD (road-racing/HPDEs).

If I opt to go for a Quaife, can anyone recommend a reputable vendor to purchase from? I have browsed a few Quaife dealers' webistes and they all list the unit at full list price ($1495.00!! Ouch!!).

I guess my other option is an S15 diff. Are there any differences between S15 diffs, or are they all the same? Is there anything else needed for install into an S13 other than the LSD unit and the 2 S15 output shafts? Also, does the S15 diff change the final drive ratio?

Thanks.

[OptionZero]

You want an S15 Spec-R differential, which came on the turbo, 6-spd models as well as the special Autech N/A 6-spd version.

Search for other S15 diff threads, I know Turdz posted pictures before. U should be able to look into the internals and see the helical cut gears.

Just take the internals, swap them into the open differential pumpkin, and bolt the whole thing back in, and viola, you got urself a badass diff for grip.

Combo with Falken Azenis Sports and you are on your way to pwnage.

But search for sure for s15 differential, there has been much discussion in recent months.

Quaife is very very expensive, unless you are hardcore racing it is probably not worth it. Some people also like the 1.5Way clutch type diffs for road racing, and they are probably also cheaper than Quaife.

[chmercer]

heilical diffs never wear out, and require no maintenance, because they dont work. save your money.

[OptionZero]

wha...? wtf are you talkin about?

[chmercer]

they suck ass?

[OptionZero]

oh yeah, of course. Yeah they suck, don't get one.

chmercer said so.

Don't get OEM aero either, they suck.

Don't forget to buy his stuff.

[ZK]

Yeah, HLSD suck .. for DRIFTING. When you want to maintain traction through a corner, you don't need/want full lock. If you want fast lap times, then it is plenty good.

There are better clutch type aftermarket units but for the $$ and the fact that they last, it can't be beat.

[trackstar]

I PM'd turdz for a pic so I can be sure I am looking at a genuine S15 helical diff. Can anyone confirm by the pics in this link?

Click me (http://cgi.ebay.com/ebaymotors/ws/eBayISAPI.dll?ViewItem&rd=1,1&item=7979081077&sspagename=STRK%3AMEWA%3AIT)

Any ideas on who sells the Quaife?

[SilviaDriver]

Don't get OEM aero either, they suck.


they do.

asdfasdfsadfsadfasdf

[TheSnail]

I just got s15 everything. I got the diff aswell, and for the price I see its worth, what will you pay for one with the whole diff, axles, and a fresh 19k on all?

[OptionZero]

i know. People only get OEM aero cuz they wnna be JDM tyte. No sense of style at all man.

I say if the kit doesn't scrap the ground, it's just not worth it.

who needs durability and fitment, much less personal preference.

[HaLo]

I just got s15 everything. I got the diff aswell, and for the price I see its worth, what will you pay for one with the whole diff, axles, and a fresh 19k on all?

ooh oooh!!! I want it!! how much?!!

[420sx]

Yeah, HLSD suck .. for DRIFTING. When you want to maintain traction through a corner, you don't need/want full lock. If you want fast lap times, then it is plenty good.

There are better clutch type aftermarket units but for the $$ and the fact that they last, it can't be beat.


wrong. 1.5 way 70% locking powe will own it any day. for traction. and clutch type isnt much more than u pay for a stupid helical.

dont forget u have to get output shafts. what? huh? you can find them cheap? fast? yea, i didnt think so. count overhead costs.

[ZK]

wrong. 1.5 way 70% locking powe will own it any day. for traction. and clutch type isnt much more than u pay for a stupid helical.

dont forget u have to get output shafts. what? huh? you can find them cheap? fast? yea, i didnt think so. count overhead costs.

Geez, take time to even finish reading my post! I said there are better clutch type aftermarket diffs that are better but they wear out and overall costs more $$.

Which you rather have? a $700 LSD that lasts the life of the car or a $1000 LSD that you have to rebuild every year or two? Personally I want to put something in and not have to worry about it. reliability counts.

[OptionZero]

Has it been definitively shown that a 1.5way clutch type is better than a helical? There was a big debate on FA a while ago, but didn't ever come to a conclusion

Plenty of quality cars have helicals: the Miata from' 94 up I believe, the STi, EVO, and SRT-4 all have helicals in front (and clutches in back), all Type-R's have helicals, the RX-7 and RX-8 i believe also have helicals

[BoroBoroS13]

I was going to get a HLSD the other day but my supplier was out of stock. I can get the whole diff and axles for about $400.

But yea, your going to need the output shafts and the diff itself. I wouldnt pay anything over $500 for everything though. If its gonna cost you more, save up a little extra cash and get a 1.5way. Also, if your into drifting at all dont get a HLSD.

[HaLo]

BoroBoroS13, where do you get them from? Nissan? I'd be interested in getting one from you if it's new and it includes the shafts..

[Angel]

I was going to get a HLSD the other day but my supplier was out of stock. I can get the whole diff and axles for about $400.

But yea, your going to need the output shafts and the diff itself. I wouldnt pay anything over $500 for everything though. If its gonna cost you more, save up a little extra cash and get a 1.5way. Also, if your into drifting at all dont get a HLSD.


Please share. This diff would be ideal for my needs and that sort of price would be great.

[A Spec Products]

:wiggle:

Shameless plug, but we're a Quaife dealer (who won't sell at full pop).

Shoot me a PM with questions etc.

[BoroBoroS13]

My hook up deals in used parts from Japan but right now they are out of stock and I need to check back with them to see if/when they will get more. I will let you guys know once I get more information from them and recive a diff for myself. :)

[ryan hagen]

another issue, if you do get one and have to order outputs like me, rare trick and i guess j-spec too will send you a pair of left side outputs, then you are like me, stuck with a h-lsd with 2 long side out puts so no go, i ve waited like 6 months+ for raretrick to send me a new short side out put but i doubt i will ever see it.

[OptionZero]

there's a guy on ebay that has 'em every month. Just under $700 shipped I believe, very reliable.

If you have any intention of going on road racing, auto X, or canyon carving, the HLSD is terrific

[withy]

this was posted on nico a month or 2 back

"The S15 helical (which comes from the spec-R car in japan) will go right into the R200 on an S13, or S14.
The diff has nothing to do with the drive ratio !!
The final drive gears consist of the pinion, and the ring gear.
There is no need to remove the pinion gear when changing the diff,
and the ring gear bolts to the diff.
So what ever gear ratio you have now, is the ratio you have after installing an S15 helical.
The only problem people get into is that if they buy an S15 helical without the output shafts.
They are larger than the standard R200 shafts.

I have one S15 helical in stock, and several in transit from Japan.
The one I have now does not have the shafts,
but I also have new shafts from a dealer in transit.

There is a shop in Walnut CA (J-spec USA) that is advertising new shafts, and I ordered in 2 sets, but it was a scam !!!

The S15, like most other Nissan diffs takes 2 different length shafts (side 'A', and side 'B').
When the shipment came in today, all that came was the side 'A'.
This Rip-Off joint will not return my calls or e-mails - so beware!!

So now I will have to order 4 more side 'B' shafts from Japan.

For the complete set (S15 helical & both shafts) I get $650.
And I will sell the new shafts (pair - left & right) for $350.

I expect these shafts to be hitting my door in about 6 weeks.

Thanks,
Gordon
Duax Machine Works
San Antonio, TX
(210) 653-9572"

[TurDz]

wrong. 1.5 way 70% locking powe will own it any day. for traction. and clutch type isnt much more than u pay for a stupid helical.

dont forget u have to get output shafts. what? huh? you can find them cheap? fast? yea, i didnt think so. count overhead costs.

haha, stupid helical. whatever.

the s15 diff + output shafts aren't as expensive as you think shipped from a japan, just gotta look in the right place.

[OptionZero]

yup, i got mine from Gordon the Duax guy. Terrific seller- u want a diff, he's ur man. He's got miata and Rx-7 diffs up the wazoo too.

[trackstar]

Cool, the duax place is the ebay link I posted up earlier in the thread...glad to hear he's reputable.

[hurleyboi514]

Helical is the shizzle... i remember i autox'd the weekend after i got my diff in, and it was a night and day difference. when i used to put on the power mid corner at any point, i would get wheel spin and no accelleration. afterwords, i could keep my foot planted post-apex all the way till the next braking point! i love it!! :)

[MadScientist]

There is a shop in Walnut CA (J-spec USA) that is advertising new shafts, and I ordered in 2 sets, but it was a scam !!!

The S15, like most other Nissan diffs takes 2 different length shafts (side 'A', and side 'B').
When the shipment came in today, all that came was the side 'A'.
This Rip-Off joint will not return my calls or e-mails - so beware!!

So now I will have to order 4 more side 'B' shafts from Japan.


Not nessecerily a Scam but OK...
Personally I was screwed into the same situation because of a Nissan Dealership that obviously doesn't know what they are selling... and it just so happens I turned the product over to the customer and now I have no real way to fix the problem. (as you can see from Ryan Hagen post).
My best option in this situation is to offer different Flanges off a Nismo GT LSD.

Several Companies are offering Left and Right Sides... but selling 2 Right Sides... Its not a Scam its ^$&% ignorant Nissan Dealers.

another issue, if you do get one and have to order outputs like me, rare trick and i guess j-spec too will send you a pair of left side outputs, then you are like me, stuck with a h-lsd with 2 long side out puts so no go, i ve waited like 6 months+ for raretrick to send me a new short side out put but i doubt i will ever see it.

Peace
Drew

[WILDACEX187]

i heard u need a sleeve of some sort for a bolt when swapping out internals. anybody hear about this?

[OptionZero]

i had no issues with any sleeve and had mine professionally done by a differential specialty shop

[ryan hagen]

hopefully these nismo gt shafts work, there must be a ton of the short side sitting in some wear house with every nissan employee laughing that they sold a thousand long sides and no one can use what they have.

[ryan hagen]

well good news bad news, a nismo gt stub wont work without machining, the splines are the same, but the shaft has a thicker part by the oil seal that starts too soon in the gt shafts and stops it from going in all the way, so pretty much i m stumped for what to do, i got both sets that almost work. i was thinking maybe have the machine shop do both of them and then they can tell me what they cut down and how much they cut down so every body can make these things work? i dont know that any of the safty clips will work but the oil seal areas should prevent leakage, they cant move taht much if at all.

[sykikchimp]

i heard u need a sleeve of some sort for a bolt when swapping out internals. anybody hear about this?

The S13 ring gear uses 12mm bolts. The HLSD ring gear flange has 13mm holes. When you bolt the ring gear to the lsd there is a 1mm of play around all the bolts that go through the flange and into the gear. When I installed my diff, I had a machine shop make me some 1/2mm thickness spacers to go in the ring gear flange to fill the space. They aren't really necessary though because the gear itself is centric to the lsd housing. The only thing that can (and will) happen is the gear can move around the housing 1mm in either direction when power is applied. This type of movement has no effect on the alignment of the hardware inside the diff so it doesn't really matter. One might consider having the spacers made if you were putting down a lot of power, and driving very hard all the time.

The HLSD is better than clutch diffs in every road course scenario, except when a drive wheel is lifted from the ground. Because of the way an HLSD works, it transfers 100% of power to the wheel with 0 resistance like an open diff. would. As long as both wheels are on the ground, the HLSD is superior.

Clutch type diffs have no ability to modulate power as necessary b/w rear wheels as traction changes due to surface irregularities. A helical will put more power on the wheel with more traction, and less where there is less traction.

HLSD's are better for daily driven cars as well due to low maintenance requirements, and the way they work in decel, and tight turning environments. No popping, or skipping/scrubbing of tires.

After having my HLSD in the car for almost 2 years, I will say I love it. I would have no other diff in my car except maybe a quaife.

The quaife is different that an s15 hlsd because the quaife is spring loaded, and therefore doesn't have as pronounced a deficiency in the "single wheel traction loss" scenario. In general, the quaife is a better diff, and has a lifetime warranty. I think Nopi.com may have decent prices on the quaife.

When I bought my diff I paid $500 for the diff and shafts, and thought that was expensive. Amazing what increased demand does to the prices.

have fun.
-Chimp

[sykikchimp]

well good news bad news, a nismo gt stub wont work without machining, the splines are the same, but the shaft has a thicker part by the oil seal that starts too soon in the gt shafts and stops it from going in all the way, so pretty much i m stumped for what to do, i got both sets that almost work. i was thinking maybe have the machine shop do both of them and then they can tell me what they cut down and how much they cut down so every body can make these things work? i dont know that any of the safty clips will work but the oil seal areas should prevent leakage, they cant move taht much if at all.

I had a hunch a while back the OBDII (96+) S14 LSD shafts might work. I haven't been able to compare directly, but from what I've read and seen, they look identical. Might be worth a try.

[OptionZero]

wow, its almost as if S15 diffs don't suck

[BobbyBoy]

So with all the talk of special output shafts needed for the S15 diff, what is needed for the quaife?

Nissan - R200 (280-300Z) fits both 10mm and 12mm ring gear bolts 44.309.150

This is the part they list that I believe will work for the 240SX, any special gear needed for this? Seems a quaife is the route that I am looking to go for my vehicle since I don't really care much for going sideways, I want to turn hot laps instead, and focus on better cornering, and less maintenence.

[kandyflip445]

According to SCC's article on it... http://www.sportcompactcarweb.com/projectcars/0309scc_projslivia/

[YellwMonky]

The HLSD is better than clutch diffs in every road course scenario, except when a drive wheel is lifted from the ground. Because of the way an HLSD works, it transfers 100% of power to the wheel with 0 resistance like an open diff. would. As long as both wheels are on the ground, the HLSD is superior.

So...that means if I went with a s15 diff. when I'm trying to go up a steep driveway and it lifts one of my rear wheels off of the ground I'm gonna be stuck just like I would be when I had an open diff?

[kandyflip445]

All you have to do is hold the brake down a little or pull the e-brake a little and it will distribute the power normally. ;)

[pepsicola]

when machining the spacers, the outer dia should be 13mm, inner dia should be 12mm, and how thick did u make the spacer to be? just 1/2 mm thick? woulnd't that be too weak?

[theicecreamdan]

whatever it takes so the bolts fit tightly in the holes. it wont be too weak because technically you dont even need the spacers.

[pepsicola]

why u don't need the spacer? wouldn't the ring has 1mm of space to slide?

[MakotoS13]

oh my god people.... i've been rockin this diff for months AND i made an in depth how to on it..

http://www.zilvia.net/f/showthread.php?t=89181&highlight=S15+helical

FUGGIN SEARCH

[pepsicola]

i did a search, and this post is what came up the most relevant. didn't see your one though, i use "hlsd in s13", "helical lsd", both didn't show ur post.

anyway, i know how to do it, but just a bit worrying about whether the spacer is necessary.