Blew my clutch to pieces....HUGE FAIL! Lots of carnage

[tricky_ab]

Originally Posted by wangan_cruiser

after all that i would invest a scattered plate just like the other member said.


better safe than sorry.

Quoted for truth!

[WagDatto]

I'm not sure if this was brought up, or even if it's true of S chassis cars..

My buddy Kelly (XeroX on this forum) had a similar problem with his Fidanza flywheel in his 510. Turns out the OEM bolts for the pressure plate are the wrong thread for the Fidanza. This caused them to work their way out, swing the PP around and knock about a quarter sized hole in the flywheel at DD speeds.

Again, not sure if the same holds true for a 240sx, but always check and double check your shit!!

[S14DB]

If the pp bolts went the PP would have just popped off the clutch and free spun.

From the picture it looks like the PP separated from the diaphragm ring and ripped it from the flywheel. Notice how the diaphragm is splayed out.

[s14unimog]

Originally Posted by projectRDM

Aluminum flywheels aren't meant to see constant tightening/loosening of the pressure plate, if you've gone through a few clutches and each time you put them in too tight (very easy to do) and without loctite, it's installer error.

I'm also guessing you're not easy on the car, you don't shift it easily so the amount of torque applied to the clutch when slamming it into gear would shred anything anyway, the clutch isn't rated for that kind of abuse.

The FSM doesn't outline using thread locker on the PP bolts...I don't agree with the last statement, The combined shear strength of the PP bolts is not the weak point. If it wasn't rated for that high of a torque spike, we would see the hub fail or the plates slip. I'm guessing the problem lies within the aluminum threading, like you said in the first place.

Originally Posted by S14DB

From the picture it looks like the PP separated from the diaphragm ring and ripped it from the flywheel. Notice how the diaphragm is splayed out.

That's a good point too...

[projectRDM]

Originally Posted by s14unimog

The FSM doesn't outline using thread locker on the PP bolts...I don't agree with the last statement, The combined shear strength of the PP bolts is not the weak point. If it wasn't rated for that high of a torque spike, we would see the hub fail or the plates slip. I'm guessing the problem lies within the aluminum threading, like you said in the first place.

The FSM doesn't specify thread locker because the OE flywheel isn't aluminum. The threat of the bolts backing out after final torque isn't as great, nor is the possibility of the threads becoming damaged from overuse on an OE flywheel.

[Matej]

Oh no. Even though I only have a slow KA, now I am scared to buy an aluminum flywheel. I was just about to order the Fidanza. Maybe I will buy the XTD chromoly flywheel instead, and save money as well.

[Shadowhunter]

Dayum, Heard of this stuff on happening on high HP drag cars. That's nut's make sure you use red threadlocker when you get it all back together again,just in case some bolts decided to loosen up on ya.

[ZX88]

wow boom!ll,l,

[NISNPWR]

Yeah thanks for all the imput guys.
Im looking into new options now. I can't decide to go twin disc on an sr20 trans with a hardend input shaft. or to save for awhile and go with a z32 tranny.
but then the other option is to do a 2speed power glide and posibly do some wheelies at the track.

[NISNPWR]

Does anyone have a block for sale? and/or a SR20DET bell housing?

[mattro]

god damn. i have a CC clutch but the oe flywheel. im still going to get a shield for it though, i like my legs.

[SR_Vlurs]

SHIT that would have hurt man glad ur ok bro

[reccakun08]

Originally Posted by g-via

jesus you're lucky it didn't rip thru the floor and into your LEGS.

god damn!

those were my thoughts as well

[prang11]

Holy shit.....

[flamebag16]

and this is why you dont helicoil your flywheel..... shits epic.... sticky material

[$nicklefritz]

God damn.... Mutha fucker

[tek_88]

dude.....same exact thing happened to me two days ago, except all my flywheel bolts broke off and sent the flywheel+clutch flying to destroy my tranny. And worst of all it all happened with the car under no load just free revving at idle.

[BigVinnie]

Personally I wouldn't use a fidanza after 400HP. That's just outright not smart.
I mean to make a 2 hp gain on a 500+HP car seems ridiculous to me. At that point its accelerate/hp attribute don't matter like it does for engines under 400HP. Just sounds like some people are greedy when it comes to HP.

I would stick with a chromoly or stock lightened flywheel to be safe.

[Teambadrun]

Dude that shit if farked up hardcore!
lol at some replys


"your motor and tranny needs a cliff" hahahha best call ever


Do you realise Twin Disc OS Giken clutchs are only rated to 480HP?? i.e 400RWHP. you could probs scretch this to 500-520HP. ~430-440rwhp.

You must be reading on some wack dyno ... any single plate clutch will slip with anymore then ~400rwhp.. even that is pushing it

so i wouldnt be suprised this piece of junk chinese clutch blew up in your face hahah

What turbo are you using for your power figures?

[SILVIA_KIDs14.5]

two words scatter sheild

[NISNPWR]

Originally Posted by flamebag16

and this is why you dont helicoil your flywheel..... shits epic.... sticky material

Who ever said I helicoiled my flywheel?
Because I never did.

Originally Posted by Teambadrun

Dude that shit if farked up hardcore!
lol at some replys


"your motor and tranny needs a cliff" hahahha best call ever

Do you realise Twin Disc OS Giken clutchs are only rated to 480HP?? i.e 400RWHP. you could probs scretch this to 500-520HP. ~430-440rwhp.

You must be reading on some wack dyno ... any single plate clutch will slip with anymore then ~400rwhp.. even that is pushing it

so i wouldnt be suprised this piece of junk chinese clutch blew up in your face hahah

What turbo are you using for your power figures?

I have ran this clutch on one of my other cars also that ran 480rwhp all day and had over 100 launches on it and it never slipped at all.
Plus I have had it on this car for 2 years at 575rwhp driving it daily and going to the track several times and It never slipped on me once. I dont know where your finding your info but I know from using it that it held just fine.

[steve shadows]

Originally Posted by bardabe

yeah steel or chromolly flywheels for that kind of power please, I would NEVER run an aluminum flywheel with that kind of power, you are lucky to not be hurt, I'm running a JUN Chromolly Flywheel, with an RPS Clutch, good for 728ftlbs of torque. never had a problem i absolutely love the set up.

Beat me too it...

STILL THOUGH...

The types of claims that Fidenza always makes about how indestructable their gear is and why it's worth the extra spend I would still take it up with them and see what they say.

That is obviously some sort of Design Failure not User Install error, as long as you are telling us the truth.

[mbmbmb23]

Glad you're okay.

[kalypso123]

wow the flywheel looks like it was shot with bullets... unbelievable.

[Om1kron]

Originally Posted by GSXRJJordan

First thing's first, grammar and spelling make me wonder if it was installed right. Just saying, impressions and all.

I love you man... I seriously was going to post the same exact thing

[Teambadrun]

Originally Posted by NISNPWR

Who ever said I helicoiled my flywheel?
Because I never did.



I have ran this clutch on one of my other cars also that ran 480rwhp all day and had over 100 launches on it and it never slipped at all.
Plus I have had it on this car for 2 years at 575rwhp driving it daily and going to the track several times and It never slipped on me once. I dont know where your finding your info but I know from using it that it held just fine.

I believe you. i know some guys who have 5 puck clutches ( exedy ) and are making huge power
but there cars dont run such large/grippy tyres
maybe this comes into affect allot more.. then the power you are making?
Cheers

[240sxvaj]

Crazy shit!

[NISNPWR]

Originally Posted by Teambadrun

I believe you. i know some guys who have 5 puck clutches ( exedy ) and are making huge power
but there cars dont run such large/grippy tyres
maybe this comes into affect allot more.. then the power you are making?
Cheers

The tires I was runing that night were a 235/60/15 MT street radial. They hook like no other.

The car made 578rwhp and 446tq at 27psi.

The night I broke it I was only running 22psi. That is about 450whp.

Originally Posted by Om1kron

I love you man... I seriously was going to post the same exact thing

Ok I get it, my spelling and grammar could use some work. But whatevs....