Exedy 5 Puck Button

[Granthem]

Took delivery of my Exedy Heavy Heavy Duty Button clutch today. Hopefully the thing will allow me lots of fun with zero slip.

Anyhow I noticed the pucks are quite thin on their 'meat'. Not alot of room for wear (especially considering the rivets will start hitting well before the whole button is worn down)

I was wondering whether other brands of button clutches have thicker pucks.

Anyway, I took some picks to show how thin the material is, for those who might be interested.

I used the match stick as a reference, it was spare of the moment ok

Edited May 7, 2010 by Granthem

[wlspn]

Had one of these in my car a while ago & although the friction material is very thin, it holds up ok.

Lasted 2 or 3 years in my car, thrashing the date out of it & only failed in the end because the pivot broke, the clutch fork moved & I tried to drive with no clutch... Very easy to drive with too. Overall nice clutch I think.

Due to the fact that you shouldn't slip it taking off (you'll get used to it...) it shouldn't wear a lot which I suppose is how you get away with such a thin lining. Haven't seen any other similar clutches to compare thickness

[Granthem]

Had one of these in my car a while ago & although the friction material is very thin, it holds up ok.

Lasted 2 or 3 years in my car, thrashing the date out of it & only failed in the end because the pivot broke, the clutch fork moved & I tried to drive with no clutch... Very easy to drive with too. Overall nice clutch I think.

Due to the fact that you shouldn't slip it taking off (you'll get used to it...) it shouldn't wear a lot which I suppose is how you get away with such a thin lining. Haven't seen any other similar clutches to compare thickness

Yeht thats what I expected. The way its meant to be used I guess there isnt much meat needed. I was suprised tho, I expected a little more beef on the pucks. I was just wondering if any of the Xtreme clutches for example have more meat on the pucks.

I also bought a Nismo Pivot too... so that mine doesnt snap like yours, fingers crossed!

[wlspn]

The nismo pivot is good security. I snapped 2 pivots which caused 2 buggered slaves as well & broke the pedal box once. Probably mainly to do with driving style but...

[lachlanw]

means you can change gear faster

[Granthem]

Well here is my old Exedy Cushioned Button Clutch

[HEKT1K]

Grant is your part number nsk-7056HHDB? i have just had one of these installed last week.. and sorry to hijack your thread, but how the hell do you drive these things?!

are these button types definitely the ones you aren't meant to slip/ride? perhaps i should have gone cushioned button

[Granthem]

Hey Ric,

Yeh thats the model! My old rooted clutch you see above was a cushioned button. It served its purpose well, I think 5 years of driving it took before it wore down like that. The killer for it was limiter launching at the drags on semi slicks.

As for the new button, you will get used to it! My mate has a twin plate nismo clutch and he can use it like a normal clutch, you wouldnt even know. Give it a few weeks, you will adapt to the severity of it.

Definitely dont slip or ride it. Basically learn the revs that it seems to engage with best, and you should be fine. You just cant get lazy with them... because they will snap your neck off if you stuff it up lol!

How much power does your car have? If it is a near standard 33 gtst, the cushioned button would have probably been a better option

[HEKT1K]

yeah i'm hoping i get used to it.. the heavy pedal (my old one was feather light) already feels normal

car will soon be around 250rwkw, i'm planning to take it to the drags a bit so i think i've made the right choice as far as thrashability is concerned

[Granthem]

Well yeh if that is your plans then I think you made the right choice.

My cushioned button didnt like abuse (althought it may have been on its last legs when I started the abuse, not sure)

Did you upgrade your pivot?

[HEKT1K]

No i read a bit about it but didn't end up getting one... do you think it's worthwhile? I'll speak to my tuner soon and see what he thinks

[bubba]

Definitely get the Nismo pivot, I've snapped a pivot but it wasn't as bad as the guy above, I was able to drive my car to the workshop by rev matching (it snapped at like 3am cruising home after some heavy abuse on a cruise) and didn't f**k the clutch or slave cylinder.

[Granthem]

Well I got mine back yesterday. Its got some bite!

However, I dont think its too bad. I find blip to 2500-3000rpm and quick drop seems to get it off the line ok.

[Interloper]

Well I got mine back yesterday. Its got some bite!

However, I dont think its too bad. I find blip to 2500-3000rpm and quick drop seems to get it off the line ok.

are you using the stock flywheel and did you need to get it machined or anything to clean it up?

I'm about to make a decision between the exedy HD Button like you have and a Exedy Racing Clutch Stage 1 sports ceramic, which is only $270 more....

http://www.kudosmotorsports.com/catalog/ex...23334-p-82.html

[joeyjoejoejuniorshabadoo]

i'm running an HHDB and its easy to daily... you just need to spend more km in traffic to get used to it

[HEKT1K]

it's growing on me.. but i'm just a bit worried i'm riding it too much, even though i always make a conscious effort to get off it asap. is minimal slip ok or do i need to rev it up and dump every single time?

[Granthem]

are you using the stock flywheel and did you need to get it machined or anything to clean it up?

I'm about to make a decision between the exedy HD Button like you have and a Exedy Racing Clutch Stage 1 sports ceramic, which is only $270 more....

http://www.kudosmotorsports.com/catalog/ex...23334-p-82.html

Im using a cusco chrome moly flywheel. It needed to be machined yes.

it's growing on me.. but i'm just a bit worried i'm riding it too much, even though i always make a conscious effort to get off it asap. is minimal slip ok or do i need to rev it up and dump every single time?

Yeh I know what you mean. Mine engages so quickly I dont think there is any chance of riding it really. It goes from nothing to grip in .0001 of a second. At the moment, im trying to get a hint of wheel spin off the line, therefore I know its engaging quickly. My tires dont "chirp", its more just small scrape of the rear wheels and Im off. '

Thats how I am making sure its not being 'ridden' on take off.

[Dose Pipe Sutututu]

Should have gone for the 3 Puk Sports Ceramic for a tad more, there's more friction material and no rivots to worry aboyut.

I ended up getting the Sports Ceramic for a GTS-t using a R32 GT-R Push type pressure plate (rated at 1.1 tonnes).. and upgraded to a Nismo Big Bore Slave...

Car drives pretty easy

[Granthem]

Just a small update... the clutch is well and truely worn in now. A few hard launches, hard changes etc.

I dont know if im getting used to it, or whether its just bedded in now, but its very easy to drive with. In fact, it hardly seems like a button at all.

Here's to hopeing its just me getting used to it... and not already losing its bite!

[joeyjoejoejuniorshabadoo]

your just getting used to it

i'll bet if you cruise in second and kick it a few times your head will go through the windscreen