Page 1 of 1
diff ratios
Posted: Wed Jan 31, 2007 5:49 pm
by mossy
I'm in the process of looking for a 1.8 diff upgrade for my 91 mx5, I've found a low km 2002 diff with torsen but I don't know the ratio, should I be lloking for an earlier diff?
Re: diff ratios
Posted: Wed Jan 31, 2007 5:52 pm
by Craig
mossy wrote:I'm in the process of looking for a 1.8 diff upgrade for my 91 mx5, I've found a low km 2002 diff with torsen but I don't know the ratio, should I be lloking for an earlier diff?
It'll be a 3.636 ratio in a 2002 6 speeder. Your ratio in the 91 is a 4.3 so your best off chasing a 4.1 out of a NA Clubman or an imported NB 98-2000 5 speed.
Posted: Wed Jan 31, 2007 8:44 pm
by mossy
Thanks Craig, they had a few standard diffs there can a lsd be put into any NA8 diff?
Re:
Posted: Wed Jan 31, 2007 8:48 pm
by Craig
mossy wrote:Thanks Craig, they had a few standard diffs there can a lsd be put into any NA8 diff?
The LSD centres can be pulled and replaced in all the 1.8 diffs, not sure about the SE though as it's got a different centre, as the one I had was a hell of a lot beefier than the Torsens were.
Re:
Posted: Wed Jan 31, 2007 8:53 pm
by Sean
Craig wrote:mossy wrote:Thanks Craig, they had a few standard diffs there can a lsd be put into any NA8 diff?
The LSD centres can be pulled and replaced in all the 1.8 diffs, not sure about the SE though as it's got a different centre, as the one I had was a hell of a lot beefier than the Torsens were.
The SE LSD is a Bosch unit, very tough bit of gear, but totally incompatible with the "normal" MX5 diffs, you'd need the entire carrier and shafting set-up from an SE to do the conversion, you can probably liken it to a 1.6 to 1.8 type of conversion.
Posted: Fri Feb 02, 2007 2:02 pm
by mossy
I ended up buying the diff and a 6 speed to go with it!!
Re:
Posted: Fri Feb 02, 2007 2:03 pm
by Craig
mossy wrote:I ended up buying the diff and a 6 speed to go with it!!
Might as well get the NB8B engine too then!
Posted: Fri Feb 02, 2007 2:24 pm
by Benny
And the extra bracing!