+1

I am going Wavetrac. Seems like the best all around technology. This is a great page that explains why it excels vs others. Obviously it is written by Wavetrac so keep that in mind.

Wavetrac Technical Info

Outstanding my friend, you will not be disappointed! :D

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I'm still deciding between the Wavetrac and the Cusco RS 1.5. :icon14:

I have the cusco 1.5 RS and it's savage on the street. low speed turns sound like the titanic sinking (I like a noisy car). When arriving to car meets, be prepared for the "one of your coils is blown" comments.

The diff completely changed the feel of the Z. My next track event is this saturday, so I can report back with my impressions, if you'd like.

Yeah, Hojin stated that was the main reason he switched from a clutch type diff to the Wavetrac and he said the clutch type is slightly better under hard driving conditions but given that he drives the Z more than just to hot rod or go to the track he thinks it's better overall and way less maintenance to worry about.

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What about the tomei?

First autox with the new diff is Sunday. You're definitely right about it being harsh on the street though.

Out of curiousity Crux, how many springs and what % lock did you go with on yours?

OS Giken

/thread

OS Giken discontinued products for AT. Wavetrac was my first choice, but they don't support AT either.

100% was recommended to me and what I am currently running. I don't remember how many springs were used. Depending how the event goes this weekend, I may opt to have it backed down a bit during the next service interval.

My first track event with the new differential was this past weekend at Summit Point. At first, I thought the differential was going to be too much. I thought I was going to be sideways for most of the course. I couldn't be more wrong.

The differential was predictable and I felt a level of control over the car I didn't think was possible. Instant power delivery, facilitated throttle steering, consistent power delivery over the hairiest of bumps/uneven asphalt, and it felt like it kept me going straight in threshold braking (occasionally it felt like the rear wanted to step out, but the slightest of counter-steering settled everything instantly). The cusco 1.5 way RS is a good choice if you're looking for a differential for track use

YMMV, but my setup includes: bridgestone RE-11's 265f and 305r, powertrix coils, solid engine mounts/urethane transmission mounts/ SPL solid diff bushings, and some aero modifications.

Lot of Ohio guys here, where did you guys get it installed? I've never done a diff before.

Solid engine? :confused:

edited for clarification, but yep - Z1 solid engine mounts.

Pure Tuning in Toledo put mine in.

I LOVE my poly tranny mount for the sounds and feeling but I've had poly mounts in a WRX before and it was insane! How bad are the solids in a Z? Any video of a cold start up? Or a drive?