Series 1-2 LSD

[brooke]

After either a whole diff or the centre parts needed to make my stock series 1 a LSD!

[MaDaZ S1]

Goodluck!!!
Best bet would be to find a S3 26 spline LSD Disk to Disk as they are a hell of a lot stronger than the S1-2 24 Spline
But be warned as they are costly..
But give Graham at Boss Differantials a call and see if he can make something up.
Nothing but top quality workmanship with an honest price!
He did my whole rear end borg warner lsd conversion with panhard rod setup
Also worked on all of my commos! Wouldnt go anywhere else

[project2]

Bite the bullet and do a Borg Warner or hilux conversion. That,ll avoid the rare parts issue, and chances are you'll never have to replace it. Set and forget.

[MaDaZ S1]

^^^ Well said! Only way to go with the early first gens..
I lernt the hard way :-( Blew 4 Diffs before i went borg warner

[yelloS2Rx7]

$1800
S3 LSD dully rebuilt by selectmaz
disc to disc
axles been redrilled to suit 4/110
4.37

[13bwankel]

never broke a diff. bent one axle slightly but unlesss you're going to run 13bt and clutch dump it you'll be fine. I'm only going to run a stock diff in the 12at. That being said I've started a collection of diffs and axles.

[yelloS2Rx7]

never broke a diff. bent one axle slightly but unlesss you're going to run 13bt and clutch dump it you'll be fine. I'm only going to run a stock diff in the 12at. That being said I've started a collection of diffs and axles.
LSD best thing I ever did $$$$$/performance wise
just the S3 race diff won't stand up when I put TO4Z on..
Gotta go hilux!!!!

[Nuclear Rotection]

REVS (Pooraka) had some lsd centres advertised on ausrotary not long ago,give them a try.

Imo crazy burnouts is the only thing that kills mazda diffs

Ah yes the days of tyres lasting me about a month and diff centres about two months.....all that wasted money!!

[brooke]

What's involved I'n doing a bog Warner or hilux conversion?

My current diff may be on the way out, I'n which case a LSD would be the smart replacement

[7sinz]

hi there, i have a series two complete diff disc to disc that im pretty sure is lsd (i will check if your interested) for $990 will supply with hand brake cable for disc brake rear conversion
cheers

[13bwankel]

thats a cheap lsd if you're getting axles etc, You'd need to take the restrictor out of the master cylinder for the rear discs and nice cheap disc brake rear end upgrade as well.

[[ANG_RE]]

or suss a guru TBD diff, they are killa

[MaDaZ S1]

With the conversion they will get a diff and shorten it to length, new lsd unit, order some moser biller axels to suit, and upgrade to disc brakes at the same time..
oh and also customise the drive shaft to suit..
and if you really get into track work or heavy wheel spin worth getting a kaaz lsd center... pretty much unbreakable

[Triangle Going Sick]

Unless you're running a high Hp setup or at the drags, a diff conversion isn't always the answer.

The std 24 spline is fine for low end power applications and improved with an LSD. Obviously a S2 upgrade will give you rear discs. Both cheap and easy.

S/H Guru will set you back about $1000, bit scarce and no longer made.

S3 diff is a little stronger, but I'm pretty sure they're wider than a s1/2 diff, or mount differently - someone may be able to confirm this. Very hard to find GURU unit for 26 spline.

Still keeping away from standard diff conversions, you could go 28 spline torsen centre (which will fit your housing) for $500-$700 and modified borg warner 28 spline axles to fit - some bearing mods and fiddling to get this to work. Plenty of options that can work well without going straight for the heavy diff.

[brooke]

What kind of a difference will it make to the car, compared to putting In a standard open diff?

Car is a daily, running around 80Kw. Only reason I was thinking an LSD over an open diff is to make It that much better In the corners and make it a bit more tail happy :).

Will it make much of a difference In a relatively low powered daily?

[yelloS2Rx7]

By changing the ratio of the diff your car will accelerate much faster
in the old days guys would change the diff ratio in a old schooler and sell the car as having a worked motor!!!
Plus with LSD when apply too much right foot too soon you don't get that scary
"oh shit" snap let go and snap back the opposite way
it's just slides the rear all drifty controllable style so u can hang the ass out and power on thru, 1at gens are very snap happy open wheeling
and are hard to drive for most ppl
that's why lots of ppl say to remove the rear swaybar
because it makes the rear loafy and slower to react
but that's a bullshit fix for ppl who can't drive!!!
Other than my adjustable camber castor top strut plates
LSD best thing I ever did to my car!!!

[Triangle Going Sick]

What kind of a difference will it make to the car, compared to putting In a standard open diff?

Car is a daily, running around 80Kw. Only reason I was thinking an LSD over an open diff is to make It that much better In the corners and make it a bit more tail happy :).

Will it make much of a difference In a relatively low powered daily?

After reading that these are my thoughts; Direct replacement 4.4 ratio centre form a wrecker, open wheeler. Unless you don't mind blowing $600+ on an LSD I wouldn't bother. Always an upgrade option later.

There's more to be gained from firmer shock/spring combo, stiffer rubbers and potentially (I'd see how it goes first) rear swaybar. Don't go too hard on the springs, you'll go to the opposite extreme and end up with a difficult to handle car. Keep in mind the ride will be a little firmer and you'll feel juts in the road.

Take into account any taller rim/tyre combo is going to undo the ratio change BUT a lower profile will stiffen up the side wall and potentially improve handling on the road.

[the collector]

would be very interested to see if a wrecker here in sa has a bolt in 444 diff centre for a fair price!!
i would guess $275 pluuuuus
good luck
cheers

[13bwankel]

After reading that these are my thoughts; Direct replacement 4.4 ratio centre form a wrecker, open wheeler. Unless you don't mind blowing $600+ on an LSD I wouldn't bother. Always an upgrade option later.

There's more to be gained from firmer shock/spring combo, stiffer rubbers and potentially (I'd see how it goes first) rear swaybar. Don't go too hard on the springs, you'll go to the opposite extreme and end up with a difficult to handle car. Keep in mind the ride will be a little firmer and you'll feel juts in the road.

Take into account any taller rim/tyre combo is going to undo the ratio change BUT a lower profile will stiffen up the side wall and potentially improve handling on the road.

This is probably the most sensible post in this lot. LSD in my car made a difference, but sorting shagged bushes, better shocks, good brakes etc made my car alot faster round mallala than the diff did.

Remember 80rwkw doesn't need a hilux/borg warner/9inch diff people have well over 200 at the wheels and still have stock diffs and lots of ipra guys still run the stock diff housing/axles although all would have done something with the centre either locked, mazda lsd etc. although I supect most would using guru centres.

I'm going to stick with the stock housing and centre with a cig locker in the daytona and I'll be aiming for 200 plus mind you I've got a guru with 4.11's that i'll try as well and plenty of spare axles :lol:

If it's a story of pain and agony I'll go to a hilux or look into billet axles because the weight of the hilux is a fair bit more than the stock diff and I want to keep weight to a minium.

Now "If" I was to try to drag this car I'd be expecting to change a few diffs, but it's a circut car so I reckon I should be ok.

[Nuclear Rotection]

would be very interested to see if a wrecker here in sa has a bolt in 444 diff centre for a fair price!!
i would guess $275 pluuuuus
good luck
cheers
LOL Ray i bought a 4.44 locker off you for $100 or less...but that was probably bout 7 or 8 years ago now!

All this stuff will become harder and more expensive to get as time goes on:bheart:

[Triangle Going Sick]

would be very interested to see if a wrecker here in sa has a bolt in 444 diff centre for a fair price!!
i would guess $275 pluuuuus
good luck
cheers

If you're prepared to look around a little, smaller wreckers etc can be cheap. As long as they believe they're selling an old van centre, not a Mazda performance upgrade....or owned by Ferrari drivers.

[13bwankel]

I feel Ray would be pretty quailfied to say he knows what this stuff is worth, he spend more time looking at parts for sale than anyone I know. :)

[Triangle Going Sick]

Sorry, not questioning what they're worth. Rather that a bit of looking around and a backyard style wrecker might get some cheaper prices.

[the collector]

for sure you always need to look around and yes as i agree if the wrecker believes its only a van diff and not a sports car diff,but its also a commercial vehicle diff.it took me 3 weeks to find mine,i hotlined all the wreckers on the main 4 hotline groups,the 444 was the hardest ratio to locate as a direct repleacment.three times i went out to different wreckers who promised me yeah ive got one here mate and twice the splines were wrong and once the ratio was wrong.

advice for sure TAKE A SAMPLE AXLE WITH YOU AND DEFINATELY ASK THEM TO DOUBLE CHECK THE RATIO.EVEN PLAY DUMB AND GET THEM TO TELL YOU HOW THEY CALCULATE THE RATIO.this way youre more likely to get what you want first go.
gumtree is where i found mine after doing a search on ausrotary.there is a huge thread on what centres are interchangable, i could tell you but you will learn a shit load if you check out the "all you need to know about mazda diff thread"
Nuclear Rotection- did i?, i cant remember that one,lockers are fun but lots of ppl are scared of them or just dont like them for many reasons,mine is locked already,still havent got those flares on yet,will need to chop into them to suit the side skirts and large front bar.
good luck
cheers

[yelloS2Rx7]

This is probably the most sensible post in this lot. LSD in my car made a difference, but sorting shagged bushes, better shocks, good brakes etc made my car alot faster round mallala than the diff did.
I did everything else first, rebushed/rejointed/rebearinged whole car, springs, shocks,
then went LSD....
with an LSD the rear is completely controllable, without it, it bites
without a doubt the suspn makes it faster, sharper, easier to clip an apex blah
but the LSD and ratio change gives more acc and more grip and more rear control
there's nothin like an LSD in the wet too!!!!
As for lockers they work!!
But they tend to push the front and induce indersteer,
for a drag car or a burnout/circewoek/ringgy stupid fun car they're perfect and cheap as
but obviously a well setup LSD is a much better and more$$$ option
being smart and doin research can save cash at commercial wreckers
try find a S5 turbo gearbox yoke for a conv....rare as and $2-300+odd
gettin an e2000 yoke(heavier unis too) for $25 is much better!!! :)