eBay OBX Helical Diff? Anyone Tried?
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Joined: Nov 2006
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From: Atlanta, GA
eBay OBX Helical Diff? Anyone Tried?
Has anyone tried the OBX eBay diffs? or heard anything from anyone who has? good?bad? waste of money? worth the money? just curious, got a buddy whos got an fc and wants to know...asked me and i honestly have never encountered anyone whos used one, so curiosity struck and here i am...also got the wheels turnin (no pun intended), would it work in a -se rear end...?
Those will not work in our cars ... just because it says 85 - 92 .. that is actually wrong it is meant only for the 2nd gen which techincally started in 86. they have IRS in the back ... we dont
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Joined: Jun 2006
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From: Reading PA
yeh for the 2nd gens.. and yes they are strong. the honda guys are using them. theres a guy whos been using it for drag racing his hatch around 650whp and countless others.
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From: North Kakalakee
are there any other options other than parting out an SE to get a LSD rear end? I would really like to get rid of my one wheel peel but I dont have a place to store a parts car and I cant find any rear ends around these parts.
LSD's are also found in GSL cars too not just the GSL-SE, there was a thread last year going how a Kia sportage I think it was differential would also fit our cars. The torsen ones are the better more expensive ones usually.
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From: Ottawa, Soviet Canuckistan
Just by hanging around, here are the options I've seen:
- Miata torsen diff (just the diff mounted in our housing)
- Ford rear end (the entire rear end with the granny's kit)
- GSL or GSL-SE LSD diff (I'd take the whole rear but you can just swap innards)
I still haven't heard anyone conclusively say that they have a Miata Torsen diff in theirs, with details of which part it is exactly.
From what I can tell, a '99 Miata torsen diff will fit inside our housing, but there seems to be confusion as to which years/models of miata diff will work exactly.
And I want one.
Grannys makes a kit to put an entire ford rear end in your car, but that's pretty extreme. It seems to be the popular option with people making a lot of power, because although it's much heavier, it's also more heavy-duty, so it can handle power pretty good from what I've heard. I probably wouldn't go with it, but some do.
And you can always swap a Limited Slip Diff from a GSL or GSL-SE if you have just a base model 7. It's probably the easiest and most accessible of all the options.
Other than that, I found a *crazy* aftermarket diff from a rotary shop in Australia... but it's expensive as hell even before shipping, customs, brokerage, etc... and I can't remember where I found it.
Jon
- Miata torsen diff (just the diff mounted in our housing)
- Ford rear end (the entire rear end with the granny's kit)
- GSL or GSL-SE LSD diff (I'd take the whole rear but you can just swap innards)
I still haven't heard anyone conclusively say that they have a Miata Torsen diff in theirs, with details of which part it is exactly.
From what I can tell, a '99 Miata torsen diff will fit inside our housing, but there seems to be confusion as to which years/models of miata diff will work exactly.
And I want one.
Grannys makes a kit to put an entire ford rear end in your car, but that's pretty extreme. It seems to be the popular option with people making a lot of power, because although it's much heavier, it's also more heavy-duty, so it can handle power pretty good from what I've heard. I probably wouldn't go with it, but some do.
And you can always swap a Limited Slip Diff from a GSL or GSL-SE if you have just a base model 7. It's probably the easiest and most accessible of all the options.
Other than that, I found a *crazy* aftermarket diff from a rotary shop in Australia... but it's expensive as hell even before shipping, customs, brokerage, etc... and I can't remember where I found it.
Jon
Joined: May 2002
Posts: 5,972
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From: Ottawa, Soviet Canuckistan
Oh yeah, I forgot about the Kia ones.
From what I remember, you had to be careful because 4x4 Kias obviously have 2 diffs (all 4x4s do) and you wanted specifically one of the two (I think the front?)
Also, I remember some contention as to whether they were open diff or limited slip. It did seem to be a better option for a different gear ratio, even if it was just open diff. I mean, who buys kia parts form junkyards anyway, they ought to be pretty cheap I would think.
Jon
From what I remember, you had to be careful because 4x4 Kias obviously have 2 diffs (all 4x4s do) and you wanted specifically one of the two (I think the front?)
Also, I remember some contention as to whether they were open diff or limited slip. It did seem to be a better option for a different gear ratio, even if it was just open diff. I mean, who buys kia parts form junkyards anyway, they ought to be pretty cheap I would think.
Jon
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From: Atlanta, GA
ha or you could go kinda neck on it and weld the spider gears in the open one wheel peeler....who doesnt like chirping into parking spaces?? but yea i dont recommend it. good to hear though, ill let him know, he was curious about getting one, and didnt know if they were junk as eBay is sometimes known for...but good deal! thanks guys!
Just by hanging around, here are the options I've seen:
- Miata torsen diff (just the diff mounted in our housing)
- Ford rear end (the entire rear end with the granny's kit)
- GSL or GSL-SE LSD diff (I'd take the whole rear but you can just swap innards)
I still haven't heard anyone conclusively say that they have a Miata Torsen diff in theirs, with details of which part it is exactly.
From what I can tell, a '99 Miata torsen diff will fit inside our housing, but there seems to be confusion as to which years/models of miata diff will work exactly.
And I want one.
Grannys makes a kit to put an entire ford rear end in your car, but that's pretty extreme. It seems to be the popular option with people making a lot of power, because although it's much heavier, it's also more heavy-duty, so it can handle power pretty good from what I've heard. I probably wouldn't go with it, but some do.
And you can always swap a Limited Slip Diff from a GSL or GSL-SE if you have just a base model 7. It's probably the easiest and most accessible of all the options.
Other than that, I found a *crazy* aftermarket diff from a rotary shop in Australia... but it's expensive as hell even before shipping, customs, brokerage, etc... and I can't remember where I found it.
Jon
- Miata torsen diff (just the diff mounted in our housing)
- Ford rear end (the entire rear end with the granny's kit)
- GSL or GSL-SE LSD diff (I'd take the whole rear but you can just swap innards)
I still haven't heard anyone conclusively say that they have a Miata Torsen diff in theirs, with details of which part it is exactly.
From what I can tell, a '99 Miata torsen diff will fit inside our housing, but there seems to be confusion as to which years/models of miata diff will work exactly.
And I want one.
Grannys makes a kit to put an entire ford rear end in your car, but that's pretty extreme. It seems to be the popular option with people making a lot of power, because although it's much heavier, it's also more heavy-duty, so it can handle power pretty good from what I've heard. I probably wouldn't go with it, but some do.
And you can always swap a Limited Slip Diff from a GSL or GSL-SE if you have just a base model 7. It's probably the easiest and most accessible of all the options.
Other than that, I found a *crazy* aftermarket diff from a rotary shop in Australia... but it's expensive as hell even before shipping, customs, brokerage, etc... and I can't remember where I found it.
Jon
http://www.wankel.net/DavidLane/
ok its not davids write up its jim rothes wirte up here it is and some more info on it
http://www.jimrothe.com/mazda/torsen.html
http://www.rx7.org/jes/axles.html
http://www.jimrothe.com/mazda/torsen.html
http://www.rx7.org/jes/axles.html
They have some nice stuff. They used to offer an entire floater rear end setup, which I had planned to use someday : (.
