Not if you ask Weir.



I frequently keep my eye out for an S2k, still... I was thinking to pony up for the AP2 to get the better suspension.... is swapping the toe arms out all it takes to correct the AP1's short comings? Well, other than the oil pump issue, I mean

 

torsen actually does become open when one wheel is up. wavetrac apparently does not. helical does not. clutch types do not.

is clutch superior to helical? probably, but i also don't expect life changing or even suspension setup changing performance

 

00-05 is a nightmare to tune. 06+ ap2 is the way to go for track/modifications

 

torsen and helical are a similar thing... both do the locking thing by the virtue of sliding helical gears.. it is just the design that is different... both provide no real locking with one wheel in the air and both are a bit unpredictable in those situations.. hence, that is why you do not see torsens/helical diffs in racing situations... but they are much nicer on the road.. Plate diff in the FWD car is a nasty thing if you do not pay attention.. It will tend to pull in abruptly if you are too slow in a corner..

I drove the ralliart front and rear plated diff e9, but that was a full monty grN car so hard to draw conclusions. Predictability might be the main thing as it is more precise than the stock combo.. On my car we will try plated front ralliart diff (with lowered preload) with ACD and AYC rear... that might be weird..

 

biggest disappointment of my life... so glad it was a press car and not one I wanted to buy.. .heheheh

 

So,
Gr N Ralliart Equipped full pukka Evo 9:

how did it rotate without hand-brake?
Did it push or ? On Tarmac.

 

I honestly wouldn't be tuning the engine, anyway. Power levels would remain stock.

 

My buddy has a bone stock low mile 06 for sale right now. PM me if you are truly interested in one.

 

Already sounds like it's out of my price range.

 

I think he wants around $18k...

 

Hm. That's not bad at all. Please PM the info. I'm about to make either a MAJOR automotive purchase or go the fun S2k/FD route... I haven't decided. If a good deal, either way, fell into my lap..that would make the decision a LOT simpler LOL.

 

what's the appropriate setting for a front 1-way clutch for track, and for autox? 60% of plates activated?

 

There's no one correct answer. It depends on the driver style, how much power the car makes, how tight of turns you deal with most. That's a question best asked to the person building your diff.

 

The wavetrac is marketing hype on that preload. And the preload isnt like a multiplier to the lockup, its just straight added to it. So if you have one wheel in the air, no matter what style of diff it is you still only have the lockup torque being able to transfer power.

I would bias it to as little as you can get away with. Just know that if you do spin up an inside front, you're going to probably roast that inside edge and the bounce of the torque as the center locks up from slip (either ACD or viscous) may be a cause of inducing hop. I'll learn more though next year when Im logging wheel speed with my runs.

 

figures.. i think for me, on track, i should be able to get away with not using too much, and just be smoother with my throttle application post trail-brake.

if this is the case though, what's so transformative about having a front diff that people are talking about?