Check out some previous clutch threads. What makes the stock clutch such a POS?If you want more power out of a brand new EVO engine, do you have to replace the engine, or possibly replace the turbo and turn up the boost? Likewise, the EVO clutch problems are not the fault of the clutch design. It is the same design as the Nissan Skyline, Subaru STI, Mazda TT RX7, etc. It just needs some more "boost".
I am not "sugar coating" it, just being honest. Don't throw the baby out with the bath water. I don't believe the stock clutch is a POS. First understand what the EVO clutch problems are.
I don't think gaining a 40% increase in clamp load, keeping the correct geometry, certifying the part to SFI specs., and improve shifting is "sugar coating" the stock clutch.
We could make our own clutch covers from scratch like we do for the Integra. In that case it made sense to invest the $100,000 or so, since we were already replacing just about everything in the clutch to correct the weakneses. That is just not the case with the EVO. Making our own covers for the EVO would be a waste of time and money from an engineering standpoint. From a marketing standpoint it may make sense, but that is not usually what drives our decisions.

 

"Making our own covers for the EVO would be a waste of time and money from an engineering standpoint. From a marketing standpoint it may make sense, but that is not usually what drives our decisions"

In light of that mindset, I think alot of EVO owners will make the same decision that I did and choose the EXEDY unit.

 

The Exedy Hyper clutch may be a great part for many applications if you don't mind the price tag, but I don't understand your "mindset" comment.
All I am saying is that we tend to look at it more from an design/engineering point of view (what the customer really needs, what makes sense), NOT from a marketing point of view, (what we can sell more of/profit the most from). Sure, if we made our own covers and made them look all fancy we could sell the idea of how cool and different they are, and how only we manufacture such an engineering wonder. In reality, there is not much to improve on from our current design and it would be just an advertising ploy. And to pay for the tooling, advertising, development, how much do you think our clutch would sell for?

 

If it's Japanese then it's HKS.
Dude just get the HKS twin disc.
BoostSolutions has it for $1279.00
For aftermarket part I get told time and time again
if you stick with HKS you can't go wrong.

 

"In reality, there is not much to improve on from our current design and it would be just an advertising ploy"

Your EVO unit is not even on the maket yet. Therefore, your reply to this post is no more than an "advertising ploy"

 

Cool play on words. Actually Road Race Engineering has been selling them for about three month now. We haven't been able to the get the Exedy parts out of Japan until now, so RRE was supplying us parts from their connections with Mitsu. and we were building them exclusively for them since the parts were theirs, and the Mitsu. connection was theirs.
For more clutch information than you want to hear, check out the 21 page thread about clutches called something like "did Mitsubishi screw up the clutch?". There is a lot of helpful information regarding clutches and the EVO clutch faults, photos, etc. I don't want to rehash old information on this thread for those who have stayed tuned.

 

I remember that thread, can't seem to find it now. Did a search and it didn't come up. Are you sure that was the name of the thread?

 

Dude I am lost now??? I need to buy a clutch now and I dont know which one I should get. I think I am going to call Rallyworks they are nice people and just buy theirs. They have a single plate with a fly wheel hope fully they are good.

 

Here is the link to the thread:
https://www.evolutionm.net/forums/sh...ghlight=clutch

 

Thanks.

 

well the cusco clutch is a exedy based clutch the internals are diffrent than the exedy its whats inside that counts = P plus the cusco has ability to let one disk catch and one slip from what ive been told which would seem like it would be less stress on tranny

 

I am also lost on which is better. I guess I will have to do more research. I guess in the future I will be looking at at very streetable clutch but be able to hold 300-400whp at the most. That is if and when my stock clutch goes out and my warranty is up. I dont want to here saying oh you upgraded the clutch now your warranty is voided on your whole car crap.

 

Changing your clutch should not void the warranty being that it is a maintenance item and more than usual is not warrantied anyway.

 

Your were told wrong! Both discs are attached to the same shaft so they have to go the same speed. All of the drive surfaces (flywheel, floater, pressure plate) are directly connected and driven at the same time as well. I am not saying it's a bad clutch. I haven't tested one so I don't really know. Anyone have links to photos of a Cusco so I can see what type of design you are talking about?

 

I have the Twin Plate Exedy, and YES...it is alot stronger than the stock clutch, YES, it has sustained all that Ive thrown @ it, and YES, I love my Exedy Twin Plate. :thumbsup:

Ken