Clifton Posted February 6, 2006 Share Posted February 6, 2006 Don't know if it will work ithe long nose R200 but it cheap. http://cgi.ebay.com/ebaymotors/OBX-LSD-HELICAL-DIFFERENTIAL-89-98-NISSAN-240SX-S13-S14_W0QQitemZ8036052129QQcategoryZ33601QQssPageNameZWD1VQQrdZ1QQcmdZViewItem Quote Link to comment Share on other sites More sharing options...
fastzcars Posted February 6, 2006 Share Posted February 6, 2006 I never heard of OBX? That's a good price for a helical gear'd LSD. Quote Link to comment Share on other sites More sharing options...
JMortensen Posted February 6, 2006 Share Posted February 6, 2006 Actually that's about what they SHOULD cost IMO. Used to sell Dana Trac-Loks for about that price, and I always felt the Quaife was priced about 300% high, and along with being hyper-overpriced it gained this mystique of the magical clutchless LSD. People seemed to assume that because it was so overpriced that it had to be in all ways superior to the clutch LSD. Kind of a pet peeve actually, especially since I could sell the American version for a Dana 80 (gigantic truck diff) for less than 1/2 the cost of the R200 unit. Here's a thread from another forum (thank god we are here and not there): http://www.zilvia.net/f/archive/index.php?t-96477.html If you can get past all the bickering it looks as though they are an exact copy of the Quaife. Some might have issues with that, as it's pretty underhanded to copy someone else's product exactly and sell it as your own. Then again "exact copy" comes from a forum for 240SX's, not from the manufacturer directly. It would be nice to know the torque bias ratio on that diff. Looks like the Honda guys haven't been breaking them, but they have some issues with fitment on the axles that has caused some serious problems (don't think that would be a problem for us based on the pics I looked at). Someone should try it. The price is right... Quote Link to comment Share on other sites More sharing options...
RB26powered74zcar Posted February 6, 2006 Share Posted February 6, 2006 hahaha... I like this guys opinion of this diff "Why pay $250 for a "Phony Grip"? ( or is that phantom-slip ? ) When you can have a Helical !! Or worse yet, Pay anything for a chinese LSD ! Oh we-Be junX They can't get their 1.6 Honda LSDs to stay in one piece, Just what is a 2.4L KA, or a 2L SR going to do to one of them ! Do you want a JDM Spec car, or a chinese rickshaw ??" http://cgi.ebay.com/ebaymotors/JDM-Nissan-Silvia-S-15-S15-Helical-LSD-240SX-S13-S14_W0QQitemZ8035789294QQcategoryZ33731QQtcZphotoQQrdZ1QQcmdZViewItem Quote Link to comment Share on other sites More sharing options...
240zwannabe Posted February 6, 2006 Share Posted February 6, 2006 i've never heard of OBX's differentials but i know that they're exhausts rust easy.... Quote Link to comment Share on other sites More sharing options...
Pop N Wood Posted February 6, 2006 Share Posted February 6, 2006 Do you want a JDM Spec car, or a chinese rickshaw ??" Kind of an amazing statement. 30 years ago "Made in Japan" was a euphemism for cheap, low quality junk. I suppose in 30 more years we will all be clamoring for the Chinee spec merchandise and not that cheap, Pakistani crap. Quote Link to comment Share on other sites More sharing options...
Clifton Posted February 6, 2006 Author Share Posted February 6, 2006 hahaha... I like this guys opinion of this diff "Why pay $250 for a "Phony Grip"? ( or is that phantom-slip ? ) When you can have a Helical !! Or worse yet' date=' Pay anything for a chinese LSD ! Oh we-Be junX They can't get their 1.6 Honda LSDs to stay in one piece, Just what is a 2.4L KA, or a 2L SR going to do to one of them ! Do you want a JDM Spec car, or a chinese rickshaw ??" http://cgi.ebay.com/ebaymotors/JDM-Nissan-Silvia-S-15-S15-Helical-LSD-240SX-S13-S14_W0QQitemZ8035789294QQcategoryZ33731QQtcZphotoQQrdZ1QQcmdZViewItem Ha, ha. He's a "good o'l boy" from Texas. Seems he doesn't like people from Syria, Iran, N. Korea, or - france either. So does anyone know if these work in the long diffs? I don't see why they won't if it's for a 12mm ring gear. Quote Link to comment Share on other sites More sharing options...
JMortensen Posted February 6, 2006 Share Posted February 6, 2006 Should fit right in. 240SX has two units. The regular, and the VLSD. As long as this one doesn't replace the VLSD (which I believe has a higher spline count on the CV) it should work. Quote Link to comment Share on other sites More sharing options...
goldenchild7801 Posted May 1, 2006 Share Posted May 1, 2006 Anyone try this yet Quote Link to comment Share on other sites More sharing options...
CU Zcar Posted August 8, 2006 Share Posted August 8, 2006 Sorry to revive this old thread, but it's the most recent I saw directly pertaining to the OBX diff. I was just clicking around for information on them, and found a thread on a Honda forum about a teardown: http://www.turbod16.com/viewtopic.php?t=18501 Someone in there I think mentions that the metal in the splined parts might be softer than in some of the more expensive diffs, which is why some users have had problems with axles getting stuck in. I somehow doubt OBX offers the lifetime guarantee that Quaife does Quote Link to comment Share on other sites More sharing options...
260DET Posted August 8, 2006 Share Posted August 8, 2006 Did a bit of a google on this OBX Racing Sports lot. Their website is 'under construction' and they are named as a knock off maker here http://wwwc.house.gov/smbiz/hearings/databaseDrivenHearingsSystem/displayTestimony.asp?hearingIdDateFormat=060720&testimonyId=594 Quote Link to comment Share on other sites More sharing options...
NZeder Posted November 8, 2006 Share Posted November 8, 2006 Time to drag an old thread back I found this while looking for info on the OBX diff. This has a good write up on the strip and re-assembly of these units. http://www.honda-tech.com/zerothread?id=1752849&page=1 Now I have purchase one of these OBX 240sx units and they are the 12mm type and the normal open diff spline setup ie 30mm with 29 splines. I have a long nose R200 12mm type (from a R30 Skyline) that I plan to install this unit into. But I am thinking I might just follow the above thread and strip and inspect to ensure the washers are in the correct order )()()( I will take pics also and post here also. Watch this space - also might take me a while work is nuts currently Quote Link to comment Share on other sites More sharing options...
Xander Posted November 8, 2006 Share Posted November 8, 2006 finally someone has the balls to just go out and buy one of these units. I need to finish my engine build first and than I am probably gonna try one aswell. Quote Link to comment Share on other sites More sharing options...
Tony D Posted November 8, 2006 Share Posted November 8, 2006 There was actually a Torsen-Gleason unit available in the JDM Z31Turbo models. I helped change one out in 89 before I rotated. That apparently was a Nissan unit (or so they said)---with Fuji Heavy Industries supplying the 2007 Legacy Turbo with an R200 Torsen-Gleason Torque Biasing Differential, it's only a matter of time till these units start showing up in the junkyards at junkyard prices...finally! It will be interesting to see what the diffy does when someone test it in "our application". Quote Link to comment Share on other sites More sharing options...
JMortensen Posted November 8, 2006 Share Posted November 8, 2006 The newer S15 supposedly also uses that same HLSD. Quote Link to comment Share on other sites More sharing options...
NZeder Posted November 8, 2006 Share Posted November 8, 2006 The newer S15 supposedly also uses that same HLSD. Correct the S15 6speed SR20DET Spec R locally have them. I believe they are made for Nissan by these guys. http://www.gkndriveline.com/gkn-driveline/jsp_en/solutions/tmd/hg.jsp The input spline might be different I'm not sure as I have not seen one yet but the ones that show up on evilbay (I am sure that is what the wife thinks) always have the shafts with them. A number of newer cars now come with these type of Helical Gear centers. S15 one example, MX5 another and I am sure many many more. I am sure that in the next few years more and more of these Torsen/Helical Gear centers will become available - however until then I will try this OBX unit I now have. Quote Link to comment Share on other sites More sharing options...
JMortensen Posted November 8, 2006 Share Posted November 8, 2006 That link shows more of a Quaife design than the Torsen design used previously in the R200. The Torsen that they used to make for the R200 looks like this: I'd be interested to see one of the S15 diffs with the cover off... Quote Link to comment Share on other sites More sharing options...
BlackBeaut Posted November 8, 2006 Share Posted November 8, 2006 I've got the S15 HLSD in my shortnose S13 diff (remember that thread? ) Looks like the GKN diff. It's got a 30 spline count on the output shafts and they're a little larger in diameter than the standard Nissan 29 spline shafts so it's a custom CV shaft set up all the way - you gotta make sure you get the correct output shafts! I'm pretty sure I got mine from the Ebay seller mentioned above, no problems with him, just took ages to get through customs here. Cheers, Rob Quote Link to comment Share on other sites More sharing options...
JMortensen Posted November 8, 2006 Share Posted November 8, 2006 I've got the S15 HLSD in my shortnose S13 diff (remember that thread? ) Looks like the GKN diff. It's got a 30 spline count on the output shafts and they're a little larger in diameter than the standard Nissan 29 spline shafts so it's a custom CV shaft set up all the way - you gotta make sure you get the correct output shafts! I'm pretty sure I got mine from the Ebay seller mentioned above, no problems with him, just took ages to get through customs here. I believe that the 88 SS shafts for the VLSD will work with that HLSD. I know they're larger diameter shafts with a greater spline count. I think since they're Z31T shafts that modern motorsport's CV adapters will work. This thread has related info: http://www.sr20forum.com/showthread.php?t=169151 EDIT-- I see you are correct, it does look like the GKN diff, not like the older Torsen. Quote Link to comment Share on other sites More sharing options...
BlackBeaut Posted November 8, 2006 Share Posted November 8, 2006 I believe that the 88 SS shafts for the VLSD will work with that HLSD. I know they're larger diameter shafts with a greater spline count. I think since they're Z31T shafts that modern motorsport's CV adapters will work. I wouldn't like to say yes to that without having the two types next to each other. The S15 shafts are the same lengths as the 280ZX CV shafts I've got i.e. both similar in length. When I pulled a S14 VLSD diff apart one of the shafts was much longer than the other. Unfortunately I got shot of the VLSD unit before the HLSD arrived so I didn't get a chance to see if the VLSD shafts would fit. One thing I remember about the VLSD unit is that you could see right the way through the shaft holes, handy as I had to hammer one of the shafts out using a big drift from the otherside, I can't remember if that's the same with the HLSD, if not then the VLSD shafts wouldn't work at all in it. I'll try and get some pics of the HLSD unit tomorrow, workshop is in a major state of flux though as I'm installing a milling machine. Cheers, Rob Quote Link to comment Share on other sites More sharing options...
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