What torsen diff (lsd) to use on a 5 speed stock nb8a

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joshuam
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Re: What torsen diff (lsd) to use on a 5 speed stock nb8a

Postby joshuam » Tue Mar 15, 2016 1:10 am

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.
'00 Midnight Blue NB8B - 4.1 Torsen 2 | Tein Flex-Z | Enkei RP01 :)
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Magpie
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Re: What torsen diff (lsd) to use on a 5 speed stock nb8a

Postby Magpie » Tue Mar 15, 2016 9:51 am

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.

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hks_kansei
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Re: What torsen diff (lsd) to use on a 5 speed stock nb8a

Postby hks_kansei » Tue Mar 15, 2016 12:49 pm

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)
1999 Mazda MX5 - 1989 Honda CT110 (for sale) - 1994 Mazda 626 wagon (GF's)

Magpie
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Joined: Fri Feb 11, 2011 12:49 pm
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Location: Purga, QLD

Re: What torsen diff (lsd) to use on a 5 speed stock nb8a

Postby Magpie » Tue Mar 15, 2016 12:57 pm

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.


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