[michaelvanle]

I was actually thinking of getting a decent priced auto tt pumpkin (or at least the lsd). But I don't want to be limited to my selections. I have heard a few people have the KAAZ 2 way LSD (whatever 2 way means) and have great experience with it. At the same time, many TT guys upgrade to the TRD LSD from their stock ones.

The KAAZ and TRD are priced about the same (if I buy from Curt). I was wondering which one would I guess be better performance. Any comments or thoughts are appreciated.

 

[theman]

All depends on how and where you drive the car the most.
Of these choices the KAAZ 2 way will give you the most absolute control over both rear wheels under accel/deceleration (excellent for track use, and tossing the rear around a lot;-). The stock turbo LSD works very well though, and the TRD will hold up a bit better while given a bit more definite control while still forgiving of non-perfect driver input moreso than the KAAZ.

 

[pepsitt]

how do you know if you have the TRD LSD in there? is there a test or something? The guy who I got the car from told me it has the TRD LSD in there...just wondering what I can do to test it and make sure its in there.

 

[Syed Shah]

TRD. You DO NOT want a 2-way diff in your car.

 

[theman]

I agree with the preference for the TRD for most people running around on the street with Supras... But if you're after a specific goal, such as for drift use or other track events then the 2 way may be what you want. Just be aware they benefit the experienced driver and can be hard on the unfamiliar.

 

[michaelvanle]

What exactly is a 2 way LSD?

 

[Syed Shah]

http://www.takakaira.com/asp/template.asp?cat=2&id=496&prodID=OPpLmMmhjIkgnJi

Basically, 2-way: Locks under load and no load (acceleration and braking)

1-way: Locks only with acceleration.

1.5-way: Locks partly upon braking.

 

[michaelvanle]

http://www.takakaira.com/asp/template.asp?cat=2&id=496&prodID=OPpLmMmhjIkgnJi

Basically, 2-way: Locks under load and no load (acceleration and braking)

1-way: Locks only with acceleration.

1.5-way: Locks partly upon braking.

So I guess the 1.5-way is very good then? Wouldn't you want it to lock up under deceleration too? so the car I guess stops in a straight line (if you brake hard enough for the tires to skid).

Cause without the locking up during deceleration, the car might have greater power to one wheel and "fishtail"?

 

[quick]

You DO NOT want a 2-way diff in your car.

Could you please explain your rationale for this statement?

btw, Kaaz offers 1.5-way LSDs for our cars as well IIRC.

 

[Syed Shah]

Reasons:

1. Read the link provided, it explains it. Understeer into corners, compromised lines etc.

2. More important to me, I was told I didn't want a 2-way for any sort of road/track car by somebody very experienced in these matters. I took his advice.

 

[michaelvanle]

This is mostly for street use. I'm actually looking into an LSD because my NA-T fishtails like crazy when I wot on high boost. I'm hoping an LSD can keep the car in a straight line. It's weird as fuck because on high boost I'm only making 350rwhp.

If I set it on low boost (~280rwhp) the car accelerates fine. I guess a TRD one is plenty good right? Would I be better of going with a 1.5?

 

[Syed Shah]

Get the TRD, it cures what you describe, as well as being a gem through corners. I have one, no regrets.

 

[michaelvanle]

While we are on the subject, would a stock tt auto lsd be that bad? I'm actually more interested in the tt auto lsd because:
1. it's cheaper
2. I may be able to get a package for the whole pumpkin

 

[quick]

The gears are shorter in the auto -- it may be a good combination for your car... you should calculate the ratios and speeds to make a decision.

 

[SparcoSupra]

2way is for track use only ... it helps in locking the rear wheels under decelaration in tight corners ... 1.5way is more sutable for road racing but still its stiff and well be locking the deff in the very slow full turns ...

Both are good for drag racing though