ClutchNet disc, Time to replace
 

When I pulled the motor and trans again (6speed going in finally), I stripped off the clutch and flywheel to throw the motor on the stand and I shouldn't really say I was surprised but my clutch net disc (6 puck sprung) is done.

I doubt I have 10k km on it, 2 summers of driving, maybe half a dozen track days.

Is this wear excessive?

Should I replace it with another of the same?

No significant hot spots on the flywheel or anything so it doesn't look like I abused it that much.

My Spec Stage 2 (half kevlar half organic) only lasted 30k miles.

I bought an FM 1 clutch.

What pressure plate are you using?

6 speed FTW..............go ACT!

Red, I think thats there strongest pp and the disc, IIRC it was supposed to hold 400ft/lbs or maybe it was 300...Something like that.

Lol and yes go 6 speed indeed, no more swapping trannies 3 times a week haha, and time to put down some real power:drool:

what are you going to do bout your diff gearing?

4.10, 3.9, or 3.63?

Just for you sweetheart I'll brave the minus whatever cold as fuck it is outside and get a pic.

UH OH! :makeout: :giggle:

Having rebuild my lsd more times then I care to remember trying to get the right slip, its staying how it is until a change is necessary. Its a 4.10 with rx7 lsd.

first gear will be kinda short!

there are folks running 6 speed and 4.10's without complaints, but i recomend trying to get ahold of a torsen 3.9 out of a 01, 02, or 04 (makes them gear a tad bit longer) :bigtu:

fail.

I'll pick up a 3.6 when I finish school and have more money to spend, I never use first gear anyway, its completely useless as is.

Pics are uploading, dial up ftl

Pics: Attachment 200961

Attachment 200962

Attachment 200963

Rivets are basiclly flush with the friction pads. Wear looks pretty normal I'm thinking..

3.6 is even better! Rotornut was running 6 speed and 3.63's that was tah sex!

That's normal wear, esspecially wth the track days. Plus its a puck disc, less surrface area equals greater wear faster. I know dsm guys that drag/street race, they bang through 1 clutch a season.

they don't have much friction material from the start, the rivets are like 1mm inset from the surface new.


http://www.boostedmiata.com/gallery2...serialNumber=2


http://www.boostedmiata.com/gallery2...serialNumber=2

Werd werd, I just wanted to make sure that the clutch net disc its self (as in construction material of the pads) wasn't the reason for the quick wear out.

Like I said, flywheel looks really good, no hot spots or excessive wear patterns.

Do you have a local clutch shop? You can save yourself some dough and get new friction pads installed. IMO that's a very well constructed street disc- more robust that anything I found as far as the hub structure. I paid my local clutch shop just over $50 to add new material to a four puck disc.

Any idea what friction material was on it new? Did it look like this?
http://i158.photobucket.com/albums/t...utchnet2-1.jpg
That is the copper ceramic friction material- and rated at 400ftlbs with the sprung hub. The next step down was carbon fiber rated at 300ftlbs. If your disc has copper ceramic, it shouldn't wear like that if truly unabused. That looks like a slipping disc to me. Odd the flywheel doesn't show it.

I bet DC would break a torsen within a week of install. ;)

I believe I ordered the 400ft/lbs disc as I anticipated making 350rwhp, so yes it should be the copper ceramic. It def wasn't the carbon fiber, I remember hearing overheating stories and stayed away from it.

Who said my clutch WASN'T abused?;) I beat the shit out of my car on a regular basis, ie) downshifting on the highway and laying rubber @ 100kph lol

I just thought it might last alittle longer at that abuse level.

I probably can get the pads replaced locally, great idea M2.

Ya, the flywheel has alittle bit of heat marking but nothing significant (Ya I'll get a pic before anyone asks)

As for the Torsen...lol

Braineack: Werd on the pad depth, might aswell replace them now that its out though, thanks for the pics.


-Dean

That's normal wear, esspecially wth the track days. Plus its a puck disc, less surrface area equals greater wear faster. I know dsm guys that drag/street race, they bang through 1 clutch a season.