Unless you want to spend big money, you will want what is available... which is usually a Torsen 2 LSD (which is very decent - it is certainly the most common option).
The ratio you may want to keep stock (4.1) or you could shorten (4.3) to keep the revs higher at a given speed (better acceleration) or lengthen (3.9 / 3.63) if you wanted to lower the rpm at any given speed, but this feels much less sporty and is more done for when you go turbo or have a 6 speed.
What torsen diff (lsd) to use on a 5 speed stock nb8a
Moderators: timk, Stu, zombie, Andrew, The American, Lokiel, -alex, miata, StanTheMan, greenMachine, ManiacLachy, Daffy
-
- Fast Driver
- Posts: 241
- Joined: Sat Mar 21, 2015 11:24 pm
- Vehicle: NB8B
- Location: Brisbane (southside), QLD
-
- Speed Racer
- Posts: 7468
- Joined: Fri Feb 11, 2011 12:49 pm
- Vehicle: NA6
- Location: Purga, QLD
Re: What torsen diff (lsd) to use on a 5 speed stock nb8a
Been said by many here, but upgrade the driver first before modding the car. It is cheaper and will give lasting benefits especially when you mod the car.
Notwithstanding, maybe this will help
https://www.youtube.com/watch?v=Hv0jYDWp0ZA&list=PL2ir4svMoaYim-RSNWEh-aIfdcM6plSly
Also does you car have any other mods, note that you plan to do skid/track with it.
Notwithstanding, maybe this will help
https://www.youtube.com/watch?v=Hv0jYDWp0ZA&list=PL2ir4svMoaYim-RSNWEh-aIfdcM6plSly
Also does you car have any other mods, note that you plan to do skid/track with it.
- hks_kansei
- Speed Racer
- Posts: 6154
- Joined: Tue Feb 03, 2009 10:43 am
- Vehicle: NB8A
- Location: Victoria
Re: What torsen diff (lsd) to use on a 5 speed stock nb8a
Torsen2 is stronger, and more easily available. (my recommendation would be this)
the Torsen1 is harder to find, and weaker, but supposedly is less likely to slip.
A clutch pack diff is more agressive for road use, but locks both wheels to have no slip (torsens work by torque transfer rather than locking)
The standard ratio in an NB8A is a 4.1
If you want it to accelerate quicker, but at the expense of higher RPM for each gear, you cna get a shorter ratio, like a 4.3 all the way to a 4.9
If you want lower RPM for a given speed, at the expense of some acceleration you can go for a taller ratio, like the 3.6 found in the NB8B
A Torsen2 with a 4.1 ratio will feel much the same as the stock car, except for during corners where the inside wheel won't want to spin under power (within reason)
the Torsen1 is harder to find, and weaker, but supposedly is less likely to slip.
A clutch pack diff is more agressive for road use, but locks both wheels to have no slip (torsens work by torque transfer rather than locking)
The standard ratio in an NB8A is a 4.1
If you want it to accelerate quicker, but at the expense of higher RPM for each gear, you cna get a shorter ratio, like a 4.3 all the way to a 4.9
If you want lower RPM for a given speed, at the expense of some acceleration you can go for a taller ratio, like the 3.6 found in the NB8B
A Torsen2 with a 4.1 ratio will feel much the same as the stock car, except for during corners where the inside wheel won't want to spin under power (within reason)
1999 Mazda MX5 - 1989 Honda CT110 (for sale) - 1994 Mazda 626 wagon (GF's)
-
- Speed Racer
- Posts: 7468
- Joined: Fri Feb 11, 2011 12:49 pm
- Vehicle: NA6
- Location: Purga, QLD
Re: What torsen diff (lsd) to use on a 5 speed stock nb8a
Torsen - if you lift a wheel off the ground it will act like an open diff.
Clutch pack - 3 types (1, 1.5 and 2 way). 1 way locks on acceleration, 1.5 on acceleration and partial deceleration, 2 way both directions.
Clutch pack - 3 types (1, 1.5 and 2 way). 1 way locks on acceleration, 1.5 on acceleration and partial deceleration, 2 way both directions.
Return to “MX5 Engines, Transmission & Final Drive”
Who is online
Users browsing this forum: No registered users and 66 guests