flak monkey
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| posted on 1/9/09 at 08:45 PM |
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Clutch options
What are my clutch options for 300+bhp?
I can re drill my flywheel to suit a HD clutch (I know a 220mm zetec clutch cover will fit straight on it without mods) but is one of these likely to
take over 300bhp and 220lbft of torque?
Or am I into the realms of 7.25" race clutches? And lots of cash? 
Sera
http://www.motosera.com
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whitestu
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| posted on 1/9/09 at 08:57 PM |
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Will a diesel clutch fit? That should take the torque.
Stu
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owelly
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| posted on 1/9/09 at 09:06 PM |
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What he said^^^^^^
I looked on here.. http://www.national-auto.co.uk/cata.htm
found a clutch the right size for a DERV and got them to send one to my local National stockist. The pressure plate was £20!
http://www.ppcmag.co.uk
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MikeRJ
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| posted on 1/9/09 at 10:08 PM |
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Are derv clutches happy to spin at 7000 RPM?
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coozer
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| posted on 1/9/09 at 10:16 PM |
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quote:
Originally posted by MikeRJ
Are derv clutches happy to spin at 7000 RPM?
Of course, they are just heavy duty petrol items...
I wouldn't worry to much about the power figures as its the movement of mass/initial inertia that kills clutches. The car is a lot lighter than
the porky Mondeo and easier to get off the line.
Unless you want to be side stepping the pedal at every light a standard or heavy duty clutch may just cope OK.
1972 V8 Jago
1980 Z750
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flak monkey
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| posted on 2/9/09 at 05:42 PM |
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Look like what I need is a CP5360-2 coverplate from AP Racing.
220mm pressure plate which will fit on my flywheel without any other mods. Its meant to use a sintered paddle plate, but unless I can find a 220mm one
with the right centre, then I will just use my std organic one and see what happens.
Its rated to 230lbft of torque so should be enough! 
These are fitted to xr3 and rs turbo escorts apparently. 
[Edited on 2/9/09 by flak monkey]
Sera
http://www.motosera.com
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goaty
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| posted on 2/9/09 at 08:47 PM |
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http://www.raceco.com/dura.html
some clutches avliable here...
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flak monkey
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| posted on 3/9/09 at 07:00 AM |
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I am not using a normal aftermarket duratec flywheel though. Mine is from a 1.8 (zetec i think having done some more digging) and as such the
performance duratec clutches wont fit and they wont take the torque either sadly.
David
Sera
http://www.motosera.com
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MikeRJ
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| posted on 3/9/09 at 08:38 AM |
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quote:
Originally posted by coozer
quote:
Originally posted by MikeRJ
Are derv clutches happy to spin at 7000 RPM?
Of course, they are just heavy duty petrol items...
They tend to be heavy full stop. Having seen the friction plate on a tractor burst due to over-speeding I was just wondering is car diesel clutches
are rated to the same RPM.
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goaty
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| posted on 10/9/09 at 05:46 PM |
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have you got any further on this issue??
i now have an AP friction plate just need a pressure plate. What did you end up with as yours is different to mine due to the flywheel me
thinks....
Also, are you getting your crank keyed?? i was looking to use SBD for mine as they fairly local....
cheers again
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flak monkey
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| posted on 10/9/09 at 05:53 PM |
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I ended up with an uprated AP race plate from an RS Turbo, rated to 320lbft. Fits straight on my flywheel but the fitment will be different to
yours.
I did find out during my digging that the 'special' duratec flywheel and clutch combo all the tuning companies sell is the same clutch
plate as fitted to one of the newer MG's.
I am also going to be getting my crank keyed. I will be using scholar as they are my local place. £50 for the crank and pulley to be keyed, much
cheaper than SBD!
Sera
http://www.motosera.com
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goaty
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| posted on 10/9/09 at 06:00 PM |
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jesus, thats far cheaper. Where are they based?? i may have an issue with the dry sump pumps drive pulley too.
And i need to hunt a pressure plate to suit, may have a word with the guy i got the sump off, caterham built a 330hp duratec S so he may have an idea,
i have the same friction plate they used.
The one you have should be able to cope fine i recon, not much weight to move. I need to find out more about the diff between my flywheel and yours.
Need to wait for mine to arrive.
thanks
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goaty
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| posted on 10/9/09 at 06:03 PM |
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just found there website, email is on its way. Bit of a treck away from me though
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goaty
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| posted on 11/9/09 at 04:24 PM |
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got the quote through already which i am bloody impressed by, nothign from SBD yet.
Scholar though to bore/hone the block for oversize, balance whole bottom end and do the key service all for under £300 including vat.
Time to find a pressure plate and make a trip to them 
Thanks for the info on them Flak 
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