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Need advice on installing Ogura metal clutch/flywheel set
I'm new to the RX8 as I have just bought a pre-owned pre FL RX8. It has done about 38k miles and the clutch is about due for replacement as it occasionally slipped during low-gear engagements.
While browsing the forum on clutch/flywheel I somehow favor the Ogura metallic clutch set, which comes as an integral unit. However, perhaps some of you who are knowledgeable about after-market clutch/flywheels may be able to advise, do I need a counter-weight (similar to those used with RB or Act flywheels) to be installed with the Ogura set? Your advice will be most appreciated.
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Metallic clutches are awesome for street cars and engines with relatively low torque output because they reach optimal coefficient of friction at a high temperature. That way, when you pull stumps during landscaping gigs and slip the clutch during mudbogging, your flywheel friction faces will be absolutely destroyed.
As for the counterweight question; I wonder if Ogura knows anything about that.........
Last edited by Charles R. Hill; 05-30-2011 at 10:37 AM.
you will need a counterweight if the stock flywheel is not used
The Ogura assy comes with the flywheel, disk and pressure plate (and counterweight??) all bolted into one enclosed piece. The Ogura site claims that the carbon clutch is excellent for both street and track use but costs a bunch.
I wonder if anyone who has installed such an Ogura in their ride can advise apart from the need of a counterweight how appropriate is its application in a stock RX8. Much obliged.
Metallic clutch discs are unpredictable when cold, grabby when hot, noisy, and they trash the flywheel friction faces. Some carbon discs can be nice but they also tend to be grabby and even moreso as they get hotter. To this day, there is not a Renesis engine coupled with a proper driver tbat the Exedy 10803A or ACT ZM8-HDSS cannot handle.
After you ignore this advice, feel free to also ignore what I have to say about release bearings.
I certainly will heed the kind advice from you guys on the application bit. Guess I should be looking into other alternatives (Exedy?) of the same hardwares. Thanks, guys!
I certainly will heed the kind advice from you guys on the application bit. Guess I should be looking into other alternatives (Exedy?) of the same hardwares. Thanks, guys!
As long as you stay in the "Stage 1" category, you should be fine as long as the pressure plate has the same (or minimally higher) pressure plate clamping force, the clutch disc has a little bit of copper stranding in it (as the 10803A, 10803AHD, and ZM8-HDSS do) so as to deal with heat a little better than the OEM disc, and the release bearing included is not simply the OEM/Koyo offering. You may also want to ask whomever your chosen retailer is to be sure that you get a pilot bearing seal, as well, because not all kits do.
As long as you stay in the "Stage 1" category, you should be fine as long as the pressure plate has the same (or minimally higher) pressure plate clamping force, the clutch disc has a little bit of copper stranding in it (as the 10803A, 10803AHD, and ZM8-HDSS do) so as to deal with heat a little better than the OEM disc, and the release bearing included is not simply the OEM/Koyo offering. You may also want to ask whomever your chosen retailer is to be sure that you get a pilot bearing seal, as well, because not all kits do.
As usual, very apt advice. Thank you! Btw, Charles, I'm from Singapore and, am probably restricted to the few vendors here if I should need the clutch/flywheel urgently.
I am glad the replacement I sent you was fine, but I installed your returned item on my own car (since I could not sell it as a brand-new item) and it is working perfectly.
The well-known point about release bearings is that the VKC 3600 is a very nice heavy-duty bearing that Exedy currently includes in their 10803A and AHD clutches while ACT uses the less-than-optimal OEM/Koyo bearing, which is why BHR includes the VKC 3600 with the ACT clutches we sell.
What is the latest on that 
I`m sure that was a dud...the other one was fine
Linear Mode
