looks like i found the right thread, with respect to the op, everyone is going for after market diffs for the evos, what bout dropping in a j-spec or euro spec ayc rear diff and cross member?

pretty much have the car running the j spec evo 8 super ayc setup. is that possible for our cars considering needed mods to the rear end of business.

i looked up evo history and see that evo 4s and up came with ayc then acd came into the fold at evo 7. so the ayc was an older and more reliable setup for many years before acd came into play.

what im trying to do is get a used evo 7 helical lsd, and put in a super ayc from an older evo 7-6. what do you think as a setup?

 

This is with TOO much rear camber. FYI. Also my damper suck I know.

 

ayc doesn't fit in usdm cars. i literally dont know of a single usdm evo that's swapped in the ayc system. from what i hear from europe, aftermarket mechanicals in application work just as well

 

this video explains what i want to do to my car check it from 6 minute mark and the car i want to setup as similar to is the puma lancer.

http://www.youtube.com/watch?v=0YJ-9GE0Re0

 

read above post - ayc doesnt fit on our cars.

 

so you were understeering with the set up? i didn't think half a degree of camber in the back would make that much of a difference

 

Half a degree of camber is huge. Rare people understand that suspension geometry is measured in tenths and hundreds just because the amount of impact minimal changes can have...

 

Thats good for autox to help the car rotate. It will make the rear really unstable aat highway speeds or track events. I wouldnt recommend it for anything but autox.

 

right, i was just kind of surprised since i've been running close to that and i haven't had any issues with my set up - especially since our diffs let us apex/power oversteer so much better now

 

Yeah it screwed up corner entrance, steady state cornering, AND corner exit.

I had the car dialed in practice, but decided I wanted to make a change. I thought I was putting right back where it was...when I called the alignment shop to check what it was before we made changes... it was at .7 degrees of camber.

 

weird.. i just paid for an alignment but maybe i'll have them do it again

 

I recommend the Lifetime alignment at Brake Check for $120~. I've had my car aligned 3 times now, two times to my own spec, and it only costs me $3~ in tax each time I take it in now.

 

there are more variables you can adjust to get the car to balance than just rear camber and toe. happy tires make more force and you're selling yourself short if you're intentionally making the tires unhappy with crappy camber.

 

Ha! I've seen you guys drive. How can those tires possibly be happy?
--

other news::

My shep diff arrived yesterday and I installed it this morning. I filled it with OEM diaqueen. As I pulled out of my driveway for a test drive, noise consisted of:

*CLUNK*
*Clunk*
*...clunk*
>>SILENCE<<

I can't hear anything coming from back there in tight figure eight turns. I still have the OE bushings and brackets. My test drive only lasted 5 minutes. I had to park the car or I was going to get myself arrested! It's too easy and too much fun to drive the car sideways down neighborhood roads. It's _insanely_ easy to handle.

caveat: I have zzyzx coilovers with beefy springrates (>15k).

I'll post a real review after this weekends divisional solo event.

d

 

cant wait to hear your review!