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The reason they are mostly on SAU is, because most cars on here running strong clutches have the need for them. ie big power big launch big bang. Im sure the supra guys will feel our pain. Oh and SAU is massive and has a lot of info. But seriously if the clutch does take the gearbox there will be people that say I told you so.

this is what i get when I type "nismo clutch exploding"

http://www.skylinesaustralia.com/forums/topic/233996-clutch-housing-explosion-and-calatoral-damage/

Nothing found on nismo explosion and I couldnt seem to find anything under npc explosion

Interestingly, it looks as though the ring gear is a press fit to the flywheel and that it's not a single solid flywheel with the ring gear teeth milled into it. That's just asking for trouble. Especially at higher power levels.

Does anyone know when this happened roughly ? Also I take your point, I've looked again about the npc and nismo failures but it was comment s in response to jb failure. I know Jim reads this forum including this thread but I'm sure all clutch companies have failures of some description. Albeit that one above is terrible and must have been very scary . I'm sure there must have been a reason if love to hear what the insurance company had to say about that one. My concern now is not really about exploding as Jim says the covers used now are much better than the batch that was recalled and dis guarded but rather weather a single plate is driveable at all on the street. Time will tell I guess my only other problem is due to this thread can I ever really race without fear of explosion? I will talk it over with wifey.

Scott

Jim said these failures are subject to warrantee I think he said one repair was 16k that was spread between 3 companies, his, the supplier of pressure plate and I am not sure who the third one was, also full Monty clutch covers are now custom machined out of a billet material.

NPC lightweight flywheel is real nice too...few kilos lighter with cooling vanes to help keep your clutch cool...of course if you get a twin plate you don't need flywheel...I have no doubt their big single would handle 95% of what you are using it for....however its usually that other 5% that matters ;)...

Clutch was new when the car went to dyno, it's a carbon clutch , jez filmed it and above 360 kw it was clear the clutch was slipping as revs increased but speed didn't it actually started to decrease so jez just did cruise tune to avoid further damage

Interestingly, it looks as though the ring gear is a press fit to the flywheel and that it's not a single solid flywheel with the ring gear teeth milled into it. That's just asking for trouble. Especially at higher power levels.

Always 2 sides to every story... :rolleyes:

The clutch i was supplied is certainly nothing to worry about, looks pretty bloody solid too me!

Pics in here - http://www.skylinesaustralia.com/forums/topic/358438-34geeteetee-daily-track-project/page-21

Yes Jim reads the forums and he is not afraid to have a chat and explain why certain failures happen, neither of the ones i know about give him anything to hide from.

I am sure people like PJ etc would be someone to ask about JB clutches as it is one of the most well known cars on the street and has no issues.

Mine is so nice to drive with and cops a punishment, holding up with over 500rwhp no worries.

I was merely speculating based on the photos, due to the nature of the failure, it looks as though the ring gear has separated from the flywheel. But it certainly looks as though your flywheel is a single solid piece flywheel.

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