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Gtr Diff Nismo 1.5 Or 2.0 Way?

Travis Trayhern
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djr81 Grand Master

djr81

Posted
Posted (edited)

The 1.5 way diff isn't really a 1.5 way, but anyway.

You wont need a 2 way for a hill climb, in fact you would be better off without it.

As for track work a 1.5 is better anyway.

Remember the Nismo diffs have adjustable presets.

Check the nismo website www.nismo.co.jp

Edited by djr81
djr81 Grand Master

djr81

Posted
Posted
so a 1.5 way will be better for my situation, and 2 way are good for dragging?

No a 2 way is not for dragging. Which is not to say you can't succesfully use one.

You need to understand what the 1 way, 2 way means. Best off doing a search, but roughly they work as follows.

Basically they are mechanical limited slip differential where the engine torque helps clamp the friction plates in the diff. A one way only does so under acceleration. A two way acts under acceleration but also on the over run. Hence it is useless for drag racing. A one & a half way is supposedly in between but in reality the ramp angles on the over run on the Nismo diff are square so it is a bit of marketing bullshit.

Remember that the pre-load gives you an LSD function without any engine torque. The more aggressive of the Nismo LSDs are a nasty thing on the road. You cannot gently turn a corner with any engine torque without the diff locking/clunking. Look to the pro lsd tt version if you use the thing on the road.

Travis Trayhern Proficient

Travis Trayhern

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Posted

got it so 2 way would give you to much understeer in tight corners and would like to push, and the tt version for the nismo isnt avaliable at nengun whats the differance between that and just pro

djr81 Grand Master

djr81

Posted
Posted
got it so 2 way would give you to much understeer in tight corners and would like to push

The two way will lock when you have torque transmitted via the engine on the over run, ie when the motor is slowing the car down. This commonly occurs on corner entry and yes it makes the back end reluctant to turn = push understeer.

the tt version for the nismo isnt avaliable at nengun whats the differance between that and just pro

Check the Nismo site as the TT version for the GT-R's is only a new addition. Rather than just believe the website send them (Or another of the importers...) an email to check. They should be readilly available in Australia.

The difference in the two versions is basically the ramp angle. TT Pro is more gentle and is better if you want to use it on the road. Don't use a 2 way on the street.

joeyjoejoejuniorshabadoo Grand Master

joeyjoejoejuniorshabadoo

Posted
Posted

so with a 2 way you really need to heel toe on gearing down....

and a 1 / 1.5 way you dont....

cool i get it :D

might be going a nismo gt lsd pro 1.5 then as my stocker is spinning the right too much :P

djr81 Grand Master

djr81

Posted
Posted
so with a 2 way you really need to heel toe on gearing down....

and a 1 / 1.5 way you dont....

cool i get it :D

might be going a nismo gt lsd pro 1.5 then as my stocker is spinning the right too much :P

Heal & toe. Sort of. It will stop the diff locking on clutch release, but probably not as the engine drops revs by itself.

Nismo do upgrade kits for the stock diffs as well as the stuff listed so far. There is another thread not dissimilar to this one which is worth looking through.

joeyjoejoejuniorshabadoo Grand Master

joeyjoejoejuniorshabadoo

Posted
Posted
Nismo do upgrade kits for the stock diffs as well as the stuff listed so far. There is another thread not dissimilar to this one which is worth looking through.

i thought these were the upgrade kits.... ?

car is for a daily... occasional drift, drag and circuit (track, so reasonably well abused)

would a nismo gt lsd tt pro 1.5 be the best bet?

i can get for around $1300 landed

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