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draven
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Epping, Sydney
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May 2002

how much clamping pressure is enough?	Thu, 13 January 2005 00:38

I got a quote for a 6 button clutch with 1500kg clamping pressure (a bit expensive, but this is what the guy recommended for my setup) how would this go handling 250rwkw? 300rwkw? [Report message to a moderator]

CrUZsida
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November 2003

Re: how much clamping pressure is enough?	Thu, 13 January 2005 00:43

Sounds about right I have 1000kg full face organic clutch. Handles 180rwkw and 1uz torque no problems. Would prolly fail before 250rwkw though. [Report message to a moderator]

draven
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Re: how much clamping pressure is enough?	Thu, 13 January 2005 00:53

how much did you pay for it? [Report message to a moderator]

bbaacchhyy
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Adelaide
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September 2003

Re: how much clamping pressure is enough?	Thu, 13 January 2005 00:59

Greg, My pressure plate is rated at about 2000 lb and I had the sprung centre button clutch made to suit. I asked for something to hold 200 - 250 rwkW. Charged $240 to test the PP, machine the 7M flywheel and build and supply the clutch plate Cheers Michael B [Report message to a moderator]

draven
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Re: how much clamping pressure is enough?	Thu, 13 January 2005 01:06

well, that's about the cheapest I've ever heard a setup like that going for [Report message to a moderator]

CrUZsida
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Re: how much clamping pressure is enough?

Thu, 13 January 2005 01:08

draven wrote on Thu, 13 January 2005 08:53

how much did you pay for it?

It was either $495 or $450, can't remember.
But its not a puck, so its more expensive.

You can drive the car like a 4cylinder though, its VERY forgiving.

http://www.oz-enet.com.au/~peewee/uz2/clutch_plate.jpg

http://www.oz-enet.com.au/~peewee/uz2/pressure_pla te_1.jpg
http://www.oz-enet.com.au/~peewee/uz2/pressure_pla te_2.jpg

[Report message to a moderator]

CrUZsida
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Re: how much clamping pressure is enough?

Thu, 13 January 2005 01:09

draven wrote on Thu, 13 January 2005 09:06

well, that's about the cheapest I've ever heard a setup like that going for Razz

bbaacchhyy's didn't include a new pressure plate though.

[Report message to a moderator]

justcallmefrank
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Re: how much clamping pressure is enough?	Thu, 13 January 2005 01:10

I'll vouch for that, his is like stepping on a marshmellow. Mine was $418, heavy duty clutch plate, uprated 2300lb pressure plate, machined flywheel and new thrust bearing. [Report message to a moderator]

bbaacchhyy
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Adelaide
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September 2003

Re: how much clamping pressure is enough?

Thu, 13 January 2005 01:29

CrUZsida wrote on Thu, 13 January 2005 11:39

draven wrote on Thu, 13 January 2005 09:06

well, that's about the cheapest I've ever heard a setup like that going for Razz

bbaacchhyy's didn't include a new pressure plate though.

Correct - Clutch and flywheel machining only, PP was purchased through a fellow toymodder.

[Report message to a moderator]

draven
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Re: how much clamping pressure is enough?	Thu, 13 January 2005 01:33

right still, I was quoted $800 from a nameless online performance shop... of course, I just wanted to know what sort of setup they'd recommend. mike - how's the ol' w58 holding up behind that more brutal clutch? [Report message to a moderator]

justcallmefrank
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Re: how much clamping pressure is enough?

Thu, 13 January 2005 01:34

draven wrote on Thu, 13 January 2005 09:33

mike - how's the ol' w58 holding up behind that more brutal clutch?

You assume hes driving it around Laughing

[Report message to a moderator]

draven
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Re: how much clamping pressure is enough?	Thu, 13 January 2005 01:36

ah... so it's in the same state as mine having a full time job + social life makes it suprisingly hard to get a car done quickly! (add to that underlings, and I'd imagine it'd be even tougher!) [Report message to a moderator]

justcallmefrank
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Re: how much clamping pressure is enough?	Thu, 13 January 2005 01:37

Haha, even not having a full-time job, cars seem to be a never ending cycle of holdups and setbacks. [Report message to a moderator]

bbaacchhyy
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Adelaide
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September 2003

Re: how much clamping pressure is enough?

Thu, 13 January 2005 01:38

justcallmefrank wrote on Thu, 13 January 2005 12:04

draven wrote on Thu, 13 January 2005 09:33

mike - how's the ol' w58 holding up behind that more brutal clutch?

You assume hes driving it around Laughing

Smartass !!!

Mind you, mine will get on the road sooner !!!! Twisted Evil

Just.

Oh and Greg, I'd personally go to a place that you can actually look/touch/feel the item, rather than an electronic shop.

[Updated on: Thu, 13 January 2005 01:39]

[Report message to a moderator]

justcallmefrank
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Re: how much clamping pressure is enough?

Thu, 13 January 2005 01:40

bbaacchhyy wrote on Thu, 13 January 2005 09:38

justcallmefrank wrote on Thu, 13 January 2005 12:04

draven wrote on Thu, 13 January 2005 09:33

mike - how's the ol' w58 holding up behind that more brutal clutch?

You assume hes driving it around Laughing

Smartass !!!

Mind you, mine will get on the road sooner !!!! Twisted Evil

Just.

Hey, I'm fine with mine, not called Project Decade for nothing Smile

After I get it running, it has to go back to the spray painters for them to finish it off properly.

And just to remain on topic...here is a random uttering of the word...clutch.

[Report message to a moderator]

bbaacchhyy
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Adelaide
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Re: how much clamping pressure is enough?

Thu, 13 January 2005 01:42

draven wrote on Thu, 13 January 2005 12:06

ah... so it's in the same state as mine Razz

having a full time job + social life makes it suprisingly hard to get a car done quickly! (add to that underlings, and I'd imagine it'd be even tougher!)

Yes. Include house rennovations (we were painting till 9:45pm last night, and for the next two weeks I'll be doing 13 hour shifts, one week days Confused

, and one week nights Crying or Very Sad

Oh well, at least there is O/T and penalty rates... and more tax Mad

[Report message to a moderator]

Skip
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Location:
Perth
Registered:
October 2003

Re: how much clamping pressure is enough?	Thu, 13 January 2005 01:44

My first clutch behind my 1J was full face organic sprung centre with 1500kg clamping force, lasted about 400km My second clutch is a semi puck style (has about 8 or so friction pads) ceramic and sprung centre, clamping force has been upgraded to 2000kg. This clutch works a treat, it is still well and truly slippable, only problem being is it kills your left leg to drive, i put the box into neutral ASAP when stopping. Im putting out just over 190rwkw but my injectors are nearly maxxed out so id say if my engine was in a pooprah or soarer it would be putting out 220+rwkw. My car is also a lard arse @ 1760kg dry. [Report message to a moderator]

bbaacchhyy
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Adelaide
Registered:
September 2003

Re: how much clamping pressure is enough?

Thu, 13 January 2005 01:44

justcallmefrank wrote on Thu, 13 January 2005 12:10

And just to remain on topic...here is a random uttering of the word...clutch.

Clutch and PP Rolling

[Report message to a moderator]

justcallmefrank
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Re: how much clamping pressure is enough?	Thu, 13 January 2005 01:46

On a side note though, my CLUTCH-less Truetrac is almost ready [Report message to a moderator]

draven
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Re: how much clamping pressure is enough?	Thu, 13 January 2005 01:50

2000 seems overkill for my needs... little skinny arsed supra will not put near as much stress on it... but as a matter of interest, how much did you pay for yours skip? [Report message to a moderator]

Skip
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Location:
Perth
Registered:
October 2003

Re: how much clamping pressure is enough?	Thu, 13 January 2005 02:11

Now you're testing the old memory. First clutch and pressure plate would have been about $400 i think. Then the organic material was taken off the pressure plate and the ceramic face put on and modified, and the original pressure plate was modded for the extra clamping force about $250. So about $650 atm but would have been cheaper if I had got the right thing in the first place. Plus: Second hand engine $1000 Dentist bill to fix up my chipped front teeth when gearbox fell on my face $70 My labour 25 hours @ $100 an hour = $2500 Miscellanious $200 = $4420 - $400 bits sold off my second engine = $4020 at the moment [Updated on: Thu, 13 January 2005 02:12] [Report message to a moderator]

CrUZsida
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Australia
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November 2003

Re: how much clamping pressure is enough?	Thu, 13 January 2005 02:19

How did your first clutch only last 400km's? I thought mine was dead after about 1000, but it ended up being the front of the gearbox was leaking and it covered it in oil. [Report message to a moderator]

Skip
Forums Junkie

Location:
Perth
Registered:
October 2003

Re: how much clamping pressure is enough?	Thu, 13 January 2005 03:37

It was slipping at little but a trip to the motorplex was the straw that broke the camels back. Sometimes traction can be a bitch, especially on boderline clutches. When i pulled it out there was asbestos hanging off it everywhere [Report message to a moderator]

Norbie
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Location:
Brisbane
Registered:
May 2002

Re: how much clamping pressure is enough?	Thu, 13 January 2005 08:58

My clutch is an uprated pressure plate (can't recall the actual clamping pressure but it's nothing extreme) with a 5-puck ceramic sprung centre. Total cost was $500 from Direct Clutch in Brisbane. [Report message to a moderator]

4agte
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Location:
Toronto, Downtown
Registered:
September 2004

Re: how much clamping pressure is enough?	Thu, 13 January 2005 10:53

I have a 3 puc ceramic button clutch which is supposed to be rated at 360hp at 6000rpm according to exeedy have yet to test it at anything more than 150hp but dam does it bite. Cost me 700 including the pressure plate and thrust bearing. Installed it myself (wont be doing that again) the clutch pedal is quite heavy and its allready managed to rip my rear n/a engine mount off the chassis so it is quite brutal. The s/c one will be going on asap. [Updated on: Thu, 13 January 2005 10:56] [Report message to a moderator]

draven
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Epping, Sydney
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Re: how much clamping pressure is enough?	Thu, 13 January 2005 11:25

3 button is definitly not what I'm after - my pissy little gbox and diff will fall apart, even without considering future upgrades. I might have to investigate direct clutch, or their sydney alternative (any suggestions here? everyone has offered great places in far away places) thrust bearing is something I'll have to remember too.. mine is already a bit noisy. [Report message to a moderator]

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