Their selling me a LSD for a S5
just the pumpkin for 200.00 dollars
but is it difficult to install on your own

 

An NA LSD shouldn't go for over $100 usually unless the condition is really great. It's not hard but it is time consuming. Do a search for LSD install and you'll find some great info on here!

 

The S5 LSD sucks.. look for an S4 one. And yes, 200 bucks is expensive!

 

What kind of LSD do you guy's recommend then
if the s5 LSD sucks then i won't bother with it then
So an S4 LSD is better, I heard MIata LSD's are good LSD's for the rx7

o yeah i want the LSD so i could drift In the mountains here
the Mountain roads here are really deserted at night

 

Yeah, miata lsd's are good. There a bit of work that goes into swapping them in, though. Theres a writeup in the archives about it. They have a torsen diff, which is probably the best type for a street car. The s4 diff are also good, but require rebuildign periodically.

 

Does anyone know how good the miata lsd handle in a drift?
How much does a miata LSD cost?

 

I've seen miata diffs on ebay for around $150, but you need to dissasemble it and use your stock NA open diff housing for placing the internals from the miata diff in. Torsen diffs are nice, they don't require the maintenance of a clutch-type like FCs have.

The diff could handle drifting yes. My FD has a torsen, and I've not had complaints. The write-up in the archives will help you to understand what needs to be done to get the LSD miata diff inot an FC.

 

The miata diff only works in non-turbos. Not sure if you have a turbo or not, but I thought I'd let you know. The miata diff probably couldn't handle the torque from a turbo anyway, but is fine for a n/a car.

 

if its a s5 na lsd
get it for 200 bucks
cause s5 na lsd have 4.3 gears

 

I have made up my mind and am going to buy a Miata LSD for my rx7
Could someone post the link for the write up of the miata Diff
Thank you all for the information which led me to a better decision

 

My rx7 is a 1991 n/a,it is manual,Black on Black
i got my car yesterday from the shop
and drove it today it drives incredible only thing is i need to replace the slave cylinder, the transmission is a little noise but thats all

 

The only S5 i'm aware of having the 4.3 rear end was the GTUs, everything else got 4.1 (manual) or 3.9 (auto, except S5 verts i think). Read the FC Specs sticky, it tells all.

 

Is it just me, or...
When someone mentions "pumpkin", I'm thinking about the entire rear diff + case?
If so, all you do is just swap it with your original one...

No need to mess with the guts, backlash, and nasty gear oil!


-Ted

 

yeah

and the only S5 NA that has a LSD is the GTUs.

 

seriously, adjusting backlash is so stupid/annoying. you should add that to your site where it compares the s13 to the FC. just like 'by the way, installing an LSD on an FC SUCKS!'. on the s13 if you put it back together the same its a breeze!

/jealous of S13

 

its the same with all cars....
you have to adjust the lash if you want to install it properly.

you cant expect the LSD clog to be exactly the same as the na pumpkin down to the thousands... could ya?

 

Didn't the S5 GXL's have LSD as an option? I thought they were standard on the S4's, and an option on the S5's...

 

nope,

only these cars came with LSDs factory

S4
GTU, GXL, T2 all clutch type

S5
GTUs, T2 viscous


all the others were open diff

 

I read in the miata write up, that if your open diff on your s5 is to old then when you do the miata lsd
it would still work as a open diff
is this true

 

do yourself a favor and study the three main diff types: viscous, clutch, and torsen. look at the pro's and con's of each and then decide.

imo, you should get an s4 clutch type. it's cheap and repackable so you can control how much lockup easily. it also doesn't lose it's transfer if you raise a wheel. torsens are better when you need to get power to the ground as fast as possible and usually used in road racing applications for said reason. you aren't worried about that. you are worried about a controlled slide.

 

do FD lsd's fit into 89-91 non turbo FC's? a guy in japan is telling me to get an FD lsd.

 

My 87 gxl was an automatic, so it came with the 3.9 LSD. NOw that i did the conversion a while back it was recommended to use the 4.1 open diff i got from a 89 GTU.

Now i heard that there is a diff between the 3.9 LSD and a 4.1 LSD.

What changes can i notice with the 3.9 LSD versus the 4.1 LSD. I heard it affects acceleration, but is it noticable different or its a small thing to sacrifice for the added bonus of having a LSD?

Thankz

Jason NYC

 

the guy sent me this...

"i hear about mx5 and rx lsd's but im not 100% sure on this stuff cos i never try it all....

all i know is FD in FC
im nit sure if the FC non turbo has same tranny

all i know is the Miata mx5 lsd looks like a toy in front of RX7 LSD"

so is the non turbo punpkin different?

 

There is just so many things wrong with this reply, I just had to answer...

1) I got my FD3S Torsen off eBay for under $200 SHIPPED from Japan.
I call this a bargain for what you are getting.

2) I've hung my 1987 Turbo II with it's stock clutch-type LSD so many times I've lost count.
The clutch-type LSD will spin the wheel in the air if you manage to "three wheel" the car.

3) The Torsen has a linear lock-up - usually, much easier to control.

4) The Torsen uses no parts that can wear out, and it's cheaper and easier to maintain.
The clutch-type LSD *WILL* wear out, and you will need to rebuild it.
The Torsen cannot take as much abuse as some of the (aftermarket) clutch-type LSD's; it's not built for drag racing.


-Ted

 

He's wrong.
The FD3S diff will only fit into an FC *TURBO* rear end.

If you have a non-turbo FC3S, you need to get an LSD from a Miata if you keep the stock rear end.


-Ted