Exedy Hyper Twin Clutch Kit Acura NSX Pull-type

I just had this clutch put in. I havent driven it yet but my car should be delivered to me on Saturday. I will give you my driving impression after my first ride ;)
 
They offer the carbon or cerametallic, which one did you get?

I would be interested in your thoughts on the engagement properties. Because it's a floating plate design, there should be some chatter when disengaged, but at stoplights, you should leave the clutch engaged in neutral I believe anyways so that shouldn't really be an issue.

Thanks!

Dave
 
Well its apparent most exedy clutches (at least in the nsx) are the same. This is a strong clutch with a high engagement point. You have to rev match perfectly to prevent the jerking when pulling out of first gear. If the clutch pedal is engaged which in natural, you will hear chatter. that is normal. Lightened flywheel is noticed as your rev's are much quicker.

It does hold the power so if that is what you are concerned about, this is a very good clutch and not as heavy as the RPS.

Russell didnt like the Exedy clutch for normal use (He is NA) so he replaced it.

The funny thing is my buddy just got his clutch replaced in his G35 which has been built by forged performance. 535whp and he is running the exedy twin disc clutch...it drives like a normal DD. :confused:
 
I went OEM when I replaced mine a year and a half ago. They didn't have the science of speed clutch at that time - they do now. I would not go OEM again. I'm not satisfied with my OEM clutch. It works fine till you heat it up just driving normally around town - can't really use it when just pooting around in neighborhoods looking at things on a weekend - the clutch over warms and starts to slip. Very strange. So I would go to SOS and buy there clutch if I had to do it over unless I had an SC or TC then I might need something heavy duty as in racing clutch.

My 2 cents.
 
I have that clutch in my NSX. I have almost 700 RWHP and it holds the power well. It takes a little bit of getting used to but once you get it down, it becomes easier.
 
arfnsx said:
Well its apparent most exedy clutches (at least in the nsx) are the same.

The funny thing is my buddy just got his clutch replaced in his G35 which has been built by forged performance. 535whp and he is running the exedy twin disc clutch...it drives like a normal DD. :confused:
Click to expand...

Did you get the twin carbon or twin cerametallic (since they make both)?

I've heard the carbon is actually easier to modulate, that's why I'm asking.

Thanks,

Dave
 
Mac Attack said:
Did you get the twin carbon or twin cerametallic (since they make both)?

I've heard the carbon is actually easier to modulate, that's why I'm asking.

Thanks,

Dave
Click to expand...

i need to know the same thing dave. alex can you specify which one you purchased (or anyone else for that matter)? i would like to pull the trigger soon.

thanks!
 
Disclaimer, I have no personal knowledge/experience regarding the subject matter.


But I do remember reading a thread on here about clutches, particularly Exedy units. I was curious because I love Exedy clutches.

General consensus was that Exedy's carbon clutches for the NSX were known to chatter, whereas their regular cerametallic clutches had stock-like engagement (regardless of number of discs).


Unfortunately, Exedy's website does not list any sort of clutch for the NSX anymore. I know they did a few months back though.

Here are some model number differences just to list the variations.

Hyper Single Clutch
HH04SD1
http://www.clutchcityonline.com/products/Exedy/HH04SD1.shtml

Twin Plate Racing Clutch
HM012SD
http://www.clutchcityonline.com/products/Exedy/HM012SD.shtml

Hyper Carbon Single Clutch
HH04SBMC
http://www.importperformance.com/store/HH04SBMC

Hyper Carbon Twin Plate Clutch
HM012SBMC
http://www.importperformance.com/store/HM012SBMC


The two carbon clutches seem to be designated for C32B motors.
And of course, you have to switch the input shaft on a 97-05 if you want to use a twin disc clutch like the HM012SD (in regards to the switch from an OEM twin disc from 91-96 to an OEM single disc from 97-05).



And, djminatl, I believe all NSX clutches are pull type.


Hopefully, I was of some help.
 
JLCoolman said:
Disclaimer, I have no personal knowledge/experience regarding the subject matter.


But I do remember reading a thread on here about clutches, particularly Exedy units. I was curious because I love Exedy clutches.

General consensus was that Exedy's carbon clutches for the NSX were known to chatter, whereas their regular cerametallic clutches had stock-like engagement (regardless of number of discs).


Unfortunately, Exedy's website does not list any sort of clutch for the NSX anymore. I know they did a few months back though.

Here are some model number differences just to list the variations.

Hyper Single Clutch
HH04SD1
http://www.clutchcityonline.com/products/Exedy/HH04SD1.shtml

Twin Plate Racing Clutch
HM012SD
http://www.clutchcityonline.com/products/Exedy/HM012SD.shtml

Hyper Carbon Single Clutch
HH04SBMC
http://www.importperformance.com/store/HH04SBMC

Hyper Carbon Twin Plate Clutch
HM012SBMC
http://www.importperformance.com/store/HM012SBMC


The two carbon clutches seem to be designated for C32B motors.
And of course, you have to switch the input shaft on a 97-05 if you want to use a twin disc clutch like the HM012SD (in regards to the switch from an OEM twin disc from 91-96 to an OEM single disc from 97-05).



And, djminatl, I believe all NSX clutches are pull type.


Hopefully, I was of some help.
Click to expand...

tons. thanks coolman!
 
JLCoolman said:
Hey DJ,

What did you end up doing for a clutch?

Did you go with the Exedy HM012SD?

Any feedback if you did?


I'm really tempted to get this in advance even though I don't need a clutch yet.
http://nsxprime.com/forum/showthread.php?t=151690
Click to expand...

As I mentioned in the PM you just sent me about this clutch I have for sale, I think Exedy web designers are all confused about this particular clutch as their website is giving bad information.

It doesn't even have an application for the 91-96 NSX but it says you must switch the flywheel bolts on 97+ NSX to the 91-96 version? -Doesn't make sense.

It says you have to switch the input shaft to the 91-96 NSX version.-Doesn't make sense.

If you look up the NSX as an application, it says there is none! -Also doesn't make sense, lol.

This is probably why few people run this clutch setup. Come buy mine for the cheapest price out there and get a smoking deal
 
Soundeffects said:
As I mentioned in the PM you just sent me about this clutch I have for sale, I think Exedy web designers are all confused about this particular clutch as their website is giving bad information.

It doesn't even have an application for the 91-96 NSX but it says you must switch the flywheel bolts on 97+ NSX to the 91-96 version? -Doesn't make sense.

It says you have to switch the input shaft to the 91-96 NSX version.-Doesn't make sense.

If you look up the NSX as an application, it says there is none! -Also doesn't make sense, lol.

This is probably why few people run this clutch setup. Come buy mine for the cheapest price out there and get a smoking deal
Click to expand...

I don't believe anything is wrong with Exedy's website. I am assuming that since Exedy does not list any clutches for the NSX anymore that means they probably have stopped production of all clutches for the NSX.

I have sent you another PM stating that the input shaft must be changed to a 91-96 if a twin-disc is to be used on a 97-05. I even provided two links with proof that is the case.
Just from looking at diagrams/pictures of the two input shafts, I can tell the 91-96 has an additional section of teeth on the clutch side that accounts for twin-discs, where as the 97-05 has only one section of teeth on the clutch side. Use of the 91-96 crank flywheel bolts accounts for the differing thicknesses of a single vs. twin disc flywheel.
Now that is what I gathered from looking at parts diagrams/pictures.
And then, these two websites seem to backup what I am saying.
The first being of pretty good reputation when it comes to NSXs.
http://scienceofspeed.com/products/drivetrain_performance_products/NSX/Honda/6spd_twinplateclutch/
The second specifically referring to the clutch model in question.
http://www.importperformance.com/store/HM012SD


Now, I don't understand why you keep saying things don't make sense when everything you have stated from your source of information says to do it a certain way. But that is my take on the case. I was merely trying to offer some help to improve your sale.

And like I said in my PM, I am indeed interested in your clutch, but I am still thinking over it as well.
 
Last edited:

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