240mm "home made" clutch

Post by **dareo** » Thu Jan 22, 2004 8:45 pm

WTG man, im impressed. Just think, when its all done and working you can race somebody and beat them and then say "my clutch is made out of a saw blade and i still owned you!"

Post by **C-Kwik** » Thu Jan 22, 2004 8:45 pm

dareo wrote:WTG man, im impressed. Just think, when its all done and working you can race somebody and beat them and then say "my clutch is made out of a saw blade and i still owned you!"

I'm not sure I'd want to have to explain that statement everytime...

Post by **huguetpj** » Thu Jan 22, 2004 8:45 pm

You guys should have seen me buying the saw blade. The guys at the hardware store kept asking what was I going to cut, if I needed teeth or abrassive. Then I arrived at the machine shop (machine shop, not clutch guys) with the clutch assembly and a saw blade. It took me about 30 mins just to explain what the saw blade was for :pface .

So I'm gonna be buying some rivets or screws today to put my pressure plate back together. Hopefully my car will be ready for testing by Thursday or Saturday.

Post by **offtheline** » Thu Jan 22, 2004 8:45 pm

Oh maan, this is *****ing awesome. Good luck with it!

Post by **JJ240** » Thu Jan 22, 2004 8:45 pm

What did the machine shop say after they finally understood what you wanted done to it?

Post by **Sykikchimp** » Thu Jan 22, 2004 8:45 pm

Have you thought about the fact that the OEM clutch IS much smaller and more flimsy and WHY it might have been made that way??

I'm just saying I would run a scatter shield b/w me and the bell housing with that thing.

Post by **huguetpj** » Thu Jan 22, 2004 8:45 pm

JJ240 wrote:What did the machine shop say after they finally understood what you wanted done to it?

Not much. They do weird DIY things all the time, hey it's a third world country... what did you expect?

Post by **huguetpj** » Thu Jan 22, 2004 8:45 pm

Sykikchimp wrote:Have you thought about the fact that the OEM clutch IS much smaller and more flimsy and WHY it might have been made that way??

I'm just saying I would run a scatter shield b/w me and the bell housing with that thing.

Hmmm... good point. Although the flimsy part is more probably due to aid the springs give a more smooth engagement and cost reduction. A balanced disc shouldn't have high loads ripping it apart. The biggest load would be when engaging the clutch, and that is not centrifugal but circular and spread evenly on the OEM fiber disc. And aftermarket clutch discs are way more sturdy also...

And it doesn't seem they require scatter shields. But I'm just playing devil's advocate here, I will consider the scatter shield possibilty, although $$$ are running thin.

Post by **Sykikchimp** » Thu Jan 22, 2004 8:45 pm

I guess that makes sense. just another angle to look at. The more variable you account for, the more likely you will suceed.

Post by **ryans13** » Thu Jan 22, 2004 8:45 pm

would the disc even have enough weight to brake through the bellhousing? the pressure plate and fly wheel i dont think would shatter but the disc its self might? a saw-disc like that might be a stiffer harder metal, they tend to shatter easier than softer flimsy metals.......but i think he did mention that otehr people had done something similiar?

Post by **nightwalker** » Thu Jan 22, 2004 8:45 pm

can't wait to hear about it when you install the beast. Keep us updated!!!

Post by **huguetpj** » Thu Jan 22, 2004 8:45 pm

ryans13 wrote:would the disc even have enough weight to brake through the bellhousing? the pressure plate and fly wheel i dont think would shatter but the disc its self might? a saw-disc like that might be a stiffer harder metal, they tend to shatter easier than softer flimsy metals.......but i think he did mention that otehr people had done something similiar?

With enough centrifugal force it might, but it has to go through the pressure plate first before getting to the bellhousing. Stiffer metals will shatter easily because of sudden impacts since they break instead of bend, centrifugal force shouldn't do it. I will probably cut some relieves between pucks to reduce heat build up. This should also reduce rigidity.

And yes, people here have been doing this for a while with thinner saw discs, and only 4 pucks instead of 6. 6 pucks should even out forces a bit more.

Post by **Charlie240sxt** » Thu Jan 22, 2004 8:45 pm

When you putting it in?? Date?? i want to hear about this thing

Post by **huguetpj** » Thu Jan 22, 2004 8:45 pm

The plan is to have it installed and tested by tomorrow night (Thursday Jan 29th). If something would prevent me from doing it tomorrow, then this weekend, the latest. Need to go to inspection on Monday.

Post by **Gridlocked** » Thu Jan 22, 2004 8:45 pm

Fisrst post on this forum...

Building an 86 Vw GTI for rally- this made my day...

Post by **Nathan** » Thu Jan 22, 2004 8:45 pm

Call me crazy but I think you need a new clutch/pressure plate/oh hell replace everything

Post by **MECPInstaller** » Thu Jan 22, 2004 8:45 pm

Gridlocked wrote:Fisrst post on this forum...

Building an 86 Vw GTI for rally- this made my day...

Just curious did you drive that V-Dub alittle hard?:D i haven't seen a clutch assembly blown apart like that before lol

Post by **MECPInstaller** » Thu Jan 22, 2004 8:45 pm

Make sure to keep us updated with the homemade clutch hope everything works out right and nobody gets hurt i got faith in ya though

Post by **Gridlocked** » Thu Jan 22, 2004 8:45 pm

I didn't get to be the one to blow up the clutch, but as I am getting further and further into the car, I am finding stuff that just makes me want to drink. ha ha.

I've only driven the car up and down the block since I bought it in October. When it would run with the clutch pedal out, it soudned like there was a marble in the flywheel. When you pressed the clutch, the noise went away.

I've replaced everything :Clutch plate, flywheel, transmission casing, sincros, welded up the diff (better for gravel corners) clutch cable, blah blah...

I have kept track of everything I have done to the car including dollar ammounts since I started...

check this link...http://www.section8rally.com/teds_project_home_page.htm May have had a beer before this one...

Post by **RobertspecV** » Thu Jan 22, 2004 8:45 pm

Actually the hub springs fail all the time. That is the main reason racing discs don't have them.

Also, a sprung hub does nothing for either chatter or harsh engagement. That is the job of motor mounts and marcel (the wavy stock metal plate between the friction surfaces), respectively.

I hope they did a good job of machining those pp bolt holes. Less than .001 and you will be sorry, the vibration could rip the flywheel apart.

Other than that, I gotta admire your creativity!

Post by **mister3** » Thu Jan 22, 2004 8:45 pm

hope all goes well and you don't lose a leg

shoulda just bought a SPEC clutch -- they will make them any way you like -- all kinds of hybrid stuff done there -- also have alot of billet aluminum nissan pressure plate clytch kits with a very high clamp load without the stiff pedal feel.

FYI -- the stage3 SPEC clutches are a puck style sprung hub and IMO are absolutly unbeatable

email me at the_mister3 for more info if you'd like -- i'll hook the nissan brothers up!!

Post by **iamaprofessional** » Thu Jan 22, 2004 8:45 pm

sooo...did u try it? Did It work?

Post by **TrunkMonkey** » Thu Jan 22, 2004 8:45 pm

just some fyi...yes, i did delete some of the posts in this thread. voicing an opinion about the "home made" clutch is one thing, but having a behavior more ridiculous than the thing you're trying to ridicule is something else.

bottom line...flaming/bashing other members is not tolerated.

-demetrius

240mm "home made" clutch

Here is what I found when I opened my transmission up.

Re: Here is what I found when I opened my transmission up.

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