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Thread: FX500 chatter

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Posts: 61-68 of 68
2016-08-08 15:06:46
#61
We have done the same thing on used flywheels. We used stick on sandpaper and a machining table and just cleaned them up before install. For all the trouble I have seen with the single disc setups and turbo cars I'm surprised more people aren't going twin disc. I did the same thing on my mustang years back, I blew up 4 clutch sets before I just bit the bullet and went to a twin setup. A lot smother engagement also. I know it's a lot more money but when you pull a transmission 4 times it seems to be worth it
2016-08-08 16:09:19
#62
Originally Posted by eggman


Yes,its an odd failure,but not uncommon. There is another thread on here of the EXACT same failure...you will see I posted in that thread too and bumped it.
Also,I posted my pics on facebook and there was at least 2 others who posted pics of the same exact problem. The rivets in that disc are a joke.
I was looking at the fx400 sprung disc as a replacement to use since my PP is still pretty fresh,but I may just get a new clutch kit...still gathering pricing and options at this point.I am under 300whp and dont beat on or abuse my stuff,so unless there was some damage done before I got this car that was unnoticeable when I reinstalled this clutch,it just flat out Failed.
I was just cruising at 2000rpm when it let go.No warning nothing....NOT my fault ,and no way me scuffing it up slightly had ANYTHING to do with this failure,but I appreciate the input.



So yes, I have seen this failure before and it is nothing new. In the grand scheme of things (atleast from the online posting), it is well within the realm of "noise" in regards to the failure.

Also, I never said scuffing the clutch disc led to a failure. I just see it as an odd procedure as the clutch disc is a wear item and using any sort of foreign material to "scuff" it may alter it's engagement. Don't forget, the clutch material is "organic" (as in, not metallic but ceramic or the sorts) in nature

However, you mentioned earlier in the thread that..........

........ This same setup dynoed 330/298 on e85 @12lbs before I got the car Now its on a 12lb 93 tune ...so just guessing here....


So you have no idea on how many clutch drops the past owner or launch control procedures the previous owner did?? Hmmmmmm. Now, I am not insinuating the previous owner is what lead to the failure at all, but not knowing the prior usage it is tough to simply lay the entirety of the blame on the clutch company. Now, the rivets should not have failed and should have held up to much more torque than either of your produced.......no denying that. However, if the prior owner drag raced from light to light on slicks, well it sure as hell didn't do you any favors...........
2016-08-08 16:35:33
#63
Originally Posted by Boostlee
Originally Posted by eggman


Yes,its an odd failure,but not uncommon. There is another thread on here of the EXACT same failure...you will see I posted in that thread too and bumped it.
Also,I posted my pics on facebook and there was at least 2 others who posted pics of the same exact problem. The rivets in that disc are a joke.
I was looking at the fx400 sprung disc as a replacement to use since my PP is still pretty fresh,but I may just get a new clutch kit...still gathering pricing and options at this point.I am under 300whp and dont beat on or abuse my stuff,so unless there was some damage done before I got this car that was unnoticeable when I reinstalled this clutch,it just flat out Failed.
I was just cruising at 2000rpm when it let go.No warning nothing....NOT my fault ,and no way me scuffing it up slightly had ANYTHING to do with this failure,but I appreciate the input.



So yes, I have seen this failure before and it is nothing new. In the grand scheme of things (atleast from the online posting), it is well within the realm of "noise" in regards to the failure.

Also, I never said scuffing the clutch disc led to a failure. I just see it as an odd procedure as the clutch disc is a wear item and using any sort of foreign material to "scuff" it may alter it's engagement. Don't forget, the clutch material is "organic" (as in, not metallic but ceramic or the sorts) in nature

However, you mentioned earlier in the thread that..........

........ This same setup dynoed 330/298 on e85 @12lbs before I got the car Now its on a 12lb 93 tune ...so just guessing here....


So you have no idea on how many clutch drops the past owner or launch control procedures the previous owner did?? Hmmmmmm. Now, I am not insinuating the previous owner is what lead to the failure at all, but not knowing the prior usage it is tough to simply lay the entirety of the blame on the clutch company. Now, the rivets should not have failed and should have held up to much more torque than either of your produced.......no denying that. However, if the prior owner drag raced from light to light on slicks, well it sure as hell didn't do you any favors...........


The PO had supposedly just installed that clutch and it was barely broken in at the time of my purchase,and looked as such when removed to replace the motor..at least that is what my understanding was at the time. I have no reason to believe he was misleading me since most everything else about the car was what he said it was and hes an upstanding forum member. If he wants to chime in he can....but at this point,I am not trying to blame anyone.I am not sure if the clutch was installed before or after those dyno pulls he did on e85 to tune it,or after that. It really doesnt matter at this point,just beating a dead horse here.
It is what it is.Just trying to see how many others had this happen ,and/or if someone ever found a cause for theirs failing.
I would not expect clutchmasters to do anything,but they should be made aware of it(even though it make no difference.lol)
I know the manufacturer will laugh in my face if I tell them I bought this car with the clutch and expect them to do anything about replacing it.For that reason,I will just suck it up and shell out the money for a new clutch..it just wont be a clutch masters next time.One failure like this is enough for me to just try another option.
I am more upset/frustrated that I had to take the trans right back off 150 miles after getting this whole car back together...it was alot of work time and money .I put a new motor in,and fixed every single thing on this car from front to back over the last year,so I thought I had everything good to go for a while to not have to be wrenching on stuff for a bit..lol

Oh well,these are the joys of 20+ year old modified cars
2016-08-08 21:19:41
#64
given the rivet failures seen, id avoid an fx500.

Jay, just fyi... same shit happened to me. I ran out to autozone and picked up a duralast b15 clutch disc which was a valeo dual spring unit. Using the cm pp with it, no issues.
2016-08-08 23:07:17
#65
Originally Posted by zeneffect
given the rivet failures seen, id avoid an fx500.

Jay, just fyi... same shit happened to me. I ran out to autozone and picked up a duralast b15 clutch disc which was a valeo dual spring unit. Using the cm pp with it, no issues.


cool good to hear...I had good luck with a B15 disc on a JWT PP on a previous turbo car but it was like 220hp this ones a bit more
I ordered a new Action 6puck sprung today to use with the CM pp since its still relatively low miles.Should be here in a few days
2016-12-23 17:22:25
#66
I have the same problem now that fx500 smh how did the action hold up ???
2016-12-24 10:11:42
#67
@eggman
2016-12-24 16:40:50
#68
Originally Posted by RIP
I have the same problem now that fx500 smh how did the action hold up ???


I reused the fx500 pressure pate and TOB and installed a new sprung action MS disc....holding up to daiy abuse just fine about 2000 miles so far Nice and smooth no chatter and grips good over 300whp good modulation to its not like a lightswitch like unsprung was
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