OBX Helical LSD

[Jean]

I am going to have to give this a second thought, maybe pick up a medium case rear diff open or lsd and then go from there with the addon obx or quaife...maybe there are other options out there.

Thanks guys

[2002maniac]

It does not list the lock % though.... anybody know ?

100%

that is the beauty of the quaife.

[Jean]

Quaife for e30 is $1400?? wow, a friend of mine who autox with me has one on his rsx-s and it was much much cheaper than that brand new.

I tried to find a price online for it, 693 pounds http://www.quaife.co.uk/BMW-325i-E30...B-differential

It does not list the lock % though.... anybody know ?

[BrandC]

I think this is supposed to be a cheaper (probably chinese) copy of the Quaife differential.

What I'm afraid of is that this is a case of, "You get what you pay for"

OBX has been around a while now, so they have to at least know how to cheat people or copy high-quality products very well.

I suppose if you ask OBX what kinds of materials they use to make the housing and spider gears you could compare it to a Quaife unit. The expensive part of the Quaife is the engineering and research that goes into making a helical unit. It's much more complicated than clutch-pack differentials in that they are designed not to wear very much/at all.

[matt]

I think this is supposed to be a cheaper (probably chinese) copy of the Quaife differential.

If it offers true quaife performance at that price I would definately buy one. The real thing is ~$1400 IIRC

What I'm afraid of is that this is a case of, "You get what you pay for"

Ditto.

Then again, for $400... I'm thinking about it.

[2002maniac]

I think this is supposed to be a cheaper (probably chinese) copy of the Quaife differential.

If it offers true quaife performance at that price I would definately buy one. The real thing is ~$1400 IIRC

What I'm afraid of is that this is a case of, "You get what you pay for"

[matt]

the iX diff is Viscous, not helical.

[backtrail69]

Both Jon Volk of 666 Fab and my friend Sam (mechanic/honda nut) said that people have been using them in drag hondas for quite a while and they have worked extremely well. You just have to replace the hardware with higher grade ARP bolts or something and to make sure everything was torqued correctly. I personally would rather not deal with setting backlash and all that stuff when you are setting up a diff. I would leave that stuff the the professionals. So, bolting in a used diff works for me.

[Jean]

I didn't see where it said Only for IX but you might be right. I am just thinking if a used rear end with a tired and old lsd is worth 200-400 or if it makes more sense to look for a new LSD instead if one is available that is.

[Mike325]

Aren't these the ones out of the ix?

[Jean]

There are a number of these on ebay for e30, new items for about $400 when you are taking a gamble with a 100-200k on a used stock S diff for $200 and up.

Are these junk ?