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Old 05-19-2013, 10:14 PM   #1
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Default 1.8L Exedy Stage 1 Clutch + PP

Info from me:

*** REDUCED TO $115 *** shipped to you and yours
Distance to rivets: 1.15mm (as measured with calipers from shop class sitting on my desk)
Purchased used from PO running a ~200hp setup, said it never slipped, I never installed.
Comes with clutch disc and pressure plate pictured.

On the Clutch I found the following markings:
TA047A OK13A (008)
On the Pressure plate I found the following markings:
OE12AG225F9 MADE IN JAPAN
These were confirmed with Steve Kaminski from Exedy to be genuine.


Info from them:

Exedy racing clutches only use premium friction materials that are resistant to slippage and burst. Increased clamp loads give the necessary capacity to handle modified engines. Stage 1 uses organice material for street and light track use, for up to 30% more torque than stock. Pedal efforts will be slightly higher because of the higher clamp loads. All of the clutch discs have spring center dampers to reduce drivetrain shock.

Increases clamping pressure by 52% and will take the abuse of autocross and track days and low boost applications. Like the ACT HD, this clutch will also give you a slightly stiffer clutch pedal (about 20% stiffer). But the EXEDY clutch gives a more stock-like release curve....very much like the factory clutch release curve!

BRIAN'S APPLICATION NOTES: This is my first choice for a Miata clutch upgrade for those who want better than stock but without harsh engagement. We use this clutch in our own 97 Miata. This Miata clutch is a great for stock Miatas, modified Miatas, autocrossers, track day Miatas, and even low boost Miatas.
Attached Thumbnails
1.8L Exedy Stage 1 Clutch + PP-2013-05-19_20-47-25_hdr.jpg   1.8L Exedy Stage 1 Clutch + PP-2013-05-19_20-47-46_hdr.jpg   1.8L Exedy Stage 1 Clutch + PP-img_20130519_204853_481.jpg   1.8L Exedy Stage 1 Clutch + PP-img_20130520_201958_144.jpg   1.8L Exedy Stage 1 Clutch + PP-img_20130520_202330_258.jpg  

1.8L Exedy Stage 1 Clutch + PP-img_20130520_202340_152.jpg   1.8L Exedy Stage 1 Clutch + PP-img_20130520_202504_127.jpg   1.8L Exedy Stage 1 Clutch + PP-img_20130520_202543_123.jpg  

Last edited by slammed200; 05-24-2013 at 02:01 PM.
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Old 05-20-2013, 06:29 AM   #2
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So these come stock at 24.3mm in width?
10805 Exedy Racing Stage 1 Clutch Mazda Miata 1994 2005 1 8L Free Shipping | eBay

How much life is left on this?
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Old 05-20-2013, 09:47 AM   #3
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Quote:
Originally Posted by X96naX View Post
So these come stock at 24.3mm in width?
10805 Exedy Racing Stage 1 Clutch Mazda Miata 1994 2005 1 8L Free Shipping | eBay

How much life is left on this?
These have the correct diameter to fit an OEM or aftermarket 1.8L flywheel, yes. As per the life, that's what the depth to rivets measurement is telling you. The OEM clutch is serviceable at 0.3mm, and an ACT HD is 0.2mm where I would assume this one to be comparable to since they are both Stage 1 and organic. A new clutch has around 2.0mm IIRC so there's plenty of life left here.

Last edited by slammed200; 05-20-2013 at 11:23 AM.
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Old 05-20-2013, 11:22 AM   #4
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Just wanted to get some others to weigh in on whether there's a crack near the center of the clutch disc:



Also just got an answer from Exedy:
"Thank you for your interest in Exedy products. The compressed thickness of the clutch disc assembly new is 7.8mm and has a wear life of 1.0mm. At 6.8mm the disc is considered worn out and the entire clutch kit would need to be replaced. When measuring the clutch disc thickness it is important to compress the two friction surfaces together to get a proper measurement. If you have any further questions feel free to contact me."
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1.8L Exedy Stage 1 Clutch + PP-d9f912f8-c973-4357-9958-1318f2b0b55e.jpg  
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Old 05-20-2013, 09:36 PM   #5
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Quote:
Originally Posted by X96naX View Post
Just wanted to get some others to weigh in on whether there's a crack near the center of the clutch disc:

Also just got an answer from Exedy:
"Thank you for your interest in Exedy products. The compressed thickness of the clutch disc assembly new is 7.8mm and has a wear life of 1.0mm. At 6.8mm the disc is considered worn out and the entire clutch kit would need to be replaced. When measuring the clutch disc thickness it is important to compress the two friction surfaces together to get a proper measurement. If you have any further questions feel free to contact me."
Updated the photos while cleaning the goo, after close up, and after whole disc. No cracks in the disc, I would never sell something I knew to be defect. Also added thickness uncompressed and thickness compressed. Let me know if you needed any other information!
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Old 05-22-2013, 04:38 PM   #6
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boling bumpers
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Old 05-23-2013, 10:29 PM   #7
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Price drop bump
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Old 05-24-2013, 02:00 PM   #8
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Get this outta my garage, further price drop
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Old 05-24-2013, 04:46 PM   #9
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Any throw out bearing or pilot bearing included? I'm thinking no, but figured I'd ask as most people change them out when doing a clutch.
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Old 05-25-2013, 11:23 AM   #10
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Quote:
Originally Posted by FRT_Fun View Post
Any throw out bearing or pilot bearing included? I'm thinking no, but figured I'd ask as most people change them out when doing a clutch.
No I'm not including one. Goodwin has one for around $25, selling this cheap enough and I would recommend replacing it while in there!
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Old 05-28-2013, 09:22 AM   #11
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ttt
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Old 05-31-2013, 01:41 PM   #12
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bump
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Old 06-10-2013, 12:13 AM   #13
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bump
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Old 06-21-2013, 09:17 AM   #14
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Final price drop to $105 shipped
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Old 06-21-2013, 11:51 AM   #15
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I'll take it. Send a paypal money request to

Last edited by 18psi; 02-24-2015 at 11:23 AM. Reason: removed email addy per mbr request
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Old 06-21-2013, 12:04 PM   #16
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Quote:
Originally Posted by Liquidog View Post
I'll take it. Send a paypal money request to:
Request for funds sent. Although it said you are not currently registered

Last edited by 18psi; 02-24-2015 at 11:23 AM. Reason: removed email addy per mbr request
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Old 06-21-2013, 12:18 PM   #17
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Cool. Check your email.
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Old 06-21-2013, 12:35 PM   #18
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SOLD pending funds
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