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Needing Clutch.. Exedy Twin Disk?

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Old Apr 20, 2005 | 08:02 PM
  #1  
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Question Needing Clutch.. Exedy Twin Disk?

Hi, I have a 03' Evo with only 15K miles. The clutch is slipping bad. It will just up 500 RPM before turtling along. Its very sad. Is this a problem that other EVO's have?
I don't what to get a stock replacement fearing that I'll have to go through the trouble of changing it out again.... especially with the way I drive.

I need your input on the EXEDY twin plate. This seems to be the one that is mentioned in Modified magazine as being very driver-friendly. AMS also uses it in their feature car. The lightened flywheel that comes with the kit is also very nice. I'm going to go with this particular one intending to hop up the power one of these days. Right now the car is STOCK and the clutch is just about gone.

The lowest prices that I found so far (no throwout bearing):
EVOstore.com (407) 277-8423..... $1300
LogicPerformance.com (877) LOGIC-77.... $1395 shipped overnight
Z-1 Performance (631) 863-3820.... $1395
Gruppe-S Engineering (510) 783-5300..... $1499 shipped
LancerShop.com (800) 488-9174 .... $1395

Does anyone have any comment on its performance or have a shop that can beat these prices?

Last edited by fytin; May 16, 2005 at 07:48 PM.
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Old Apr 20, 2005 | 08:06 PM
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i think the one they all use is the twin hyper carbon one, if i'm not mistaken. I thought that one was much more.
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Old Apr 20, 2005 | 08:09 PM
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AMS almost definitly does... most of the mags I've seen have been using the regular twin-disk, and that's what the local shop recommends too.... but remember, you strengthen one part, more expensive ones might break (i.e. clutch wears out instead of TC and Tranny getting ripped apart)
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Old Apr 20, 2005 | 08:11 PM
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The Twin Metallic is a GREAT clutch for daily driving and racing.

Quick shifts, Big power capacity, and easy driving - can't ask for much more.

Modified, Car and Driver, Sport Compact Car, and a number of people can vouch for its superior performance and drivability.

True - AMS uses the Triple Carbon for their 10 second 1/4 miles runs... but when they were making less power the Twin Metallic was their weapon of choice.

Those prices are good... in fact a little *too* good.

But anyway - Im sure you'll love it. If you have questions, feel free to ask!
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Old Apr 20, 2005 | 08:13 PM
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Originally Posted by UT_Evo
AMS almost definitly does... most of the mags I've seen have been using the regular twin-disk, and that's what the local shop recommends too.... but remember, you strengthen one part, more expensive ones might break (i.e. clutch wears out instead of TC and Tranny getting ripped apart)
Personally, I haven't read of anyone breaking a TC while running the Exedy Twin.
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Old Apr 20, 2005 | 08:33 PM
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Weird, I went to the place I recently saw the lowest prices, turbowholesale.com, and they do not even list Exedy anymore. They used to have it listed for about $1250.

I also could not find it listed on Lancer Shop anymore?

Is it possible these companies are getting some backlash from Exedy for selling these clutches at too low of price? I know the list price for the Exedy Twin is around $1800.

What's up with that?

EVOlutionary
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Old Apr 20, 2005 | 08:39 PM
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Originally Posted by EVOlutionary
Weird, I went to the place I recently saw the lowest prices, turbowholesale.com, and they do not even list Exedy anymore. They used to have it listed for about $1250.

I also could not find it listed on Lancer Shop anymore?

Is it possible these companies are getting some backlash from Exedy for selling these clutches at too low of price? I know the list price for the Exedy Twin is around $1800.

What's up with that?

EVOlutionary
Our MAP on the Twin Metallic is $1680.

Those that advertise too low get a call with a warning.

We have yet to have someone not comply.. but it looks like my day will be busy tomorrow.

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Old Apr 20, 2005 | 09:01 PM
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fytin looks like you shot yourself in the foot.. ouch.. next time when you see a hot deal .. grab it. BTW it's hard not to notice the clutch problem. The nasty part is that some owners don't have the curse and blame it on the driver. You know the truth.
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Old Apr 20, 2005 | 10:48 PM
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Tons of threads on this topic. I don't think I would call the Exedy Twin Metallic a good street clutch. I am not sure what you are looking for but that's more of a race clutch if you ask me. For other recent opinions on clutches see this thread: https://www.evolutionm.net/forums/sh...d.php?t=126768
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Old Apr 21, 2005 | 05:56 AM
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Originally Posted by ACTman
Tons of threads on this topic. I don't think I would call the Exedy Twin Metallic a good street clutch. I am not sure what you are looking for but that's more of a race clutch if you ask me. For other recent opinions on clutches see this thread: https://www.evolutionm.net/forums/sh...d.php?t=126768



Streetability on our Twin Plates are top priority. Actually, on all our clutches, comfort and drivability take precident along side power capacity and quality.

The way we achieve this ideal feeling is through use of our patented "cushion" function that allows the clutch to have a half engaged "zone".



Ideal pedal effort is achieved as a result of a longer lever ratio of the diaphram spring coupled with the reaction force of the "cushion".

But don't take my word for it: http://www.sportcompactcarweb.com/te...ti2/index.html


For more information on how a clutch works, see here: http://www.exedyusa.com/technical/actuation.shtml


Hope this helps you make your decision, if you have questions please feel free to PM or e-mail me!
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Old Apr 21, 2005 | 06:46 AM
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What about the noise with the Exedy twin disk? If you could eliminate the noise I would consider the Exedy, but for now I'm going to have to go with the more street able ACT quieter clutch.
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Old Apr 21, 2005 | 07:03 AM
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Originally Posted by blitz118
What about the noise with the Exedy twin disk? If you could eliminate the noise I would consider the Exedy, but for now I'm going to have to go with the more street able ACT quieter clutch.
The noise is inherant for *any* aftermarket clutch.

Exedy's particular OE design (and similar designs to other OE companies) employs what they call a "Wide Angle Dampener" (WAD). The WAD has special characteristics and damper springs that are tuned to absorb noises that are transmitted from the motor to the gearbox and vise versa. It also absorbs and prevents other harmonic noises transmitted from the engine bay area. These tuned springs work together allow for 38 degrees of movement from the center of the disc, where a normal disc turns 8-11 degrees.

For Example: Every time the engine fires, it sends a vibration thru the crank. The harmonic balancer in the front of the engine absorbs half of this noise, and the other half of the noises travel thru the crank in to the gearbox. This has been apparent in the past decade since transversely mounted engines have greatly increased torque capacity in many applications (not only Mitsubishis, Supras and Subbies). Also the packet spacing in bell housings have been greatly reduced in the past decade, where the clutch is located, thus adding to the vibrations. The new WAD clutch is now OE in vehicles such as the Evo VIII, Subaru STI, Honda Civics and Accords, Chevy Cobalt, etc. This is a simple way of controlling the vibrations at the clutch disc (before reaching the gear box).

When we goto an aftermarket performance clutch, we build it with streetability and power capacity, so we have to forgo the WAD. This allows more vibration to transmit, but it is not dissimilar from any other aftermarket cluthc on the market.

True the floater discs adds some additional noise, but its a small price to pay for such a proven piece of work.

Personally, I would rather have the clutch noise then the squirrles living in my dash any day of the week.
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Old Apr 21, 2005 | 07:07 AM
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I had AMS put in the Exedy twin disk and I couldn't be happier. I actually like the sound that it produces. It did take me a while to get used to the feel but I like it and the peace of mind is awesome.
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Old Apr 21, 2005 | 07:39 AM
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they have it on hopupracing.com for 1399.00 shipped.


http://www.hopupracing.com/extwandtrplm.html
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Old Apr 21, 2005 | 09:26 AM
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i heard the HKS clutches don't make the noises because they didn't get rid of the WAD. Am i wrong?
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