Guinness
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| posted on 8/9/06 at 02:32 PM |
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What is a Lockup Clutch?
(and is it worth getting one?)
Whilst I have my spare engines in bits, I'm looking at potential mods / upgrades.
Anyone ever used a lock up clutch? Would it be useful or a hinderance in a BEC?
Cheers
Mike
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mb893
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| posted on 8/9/06 at 03:15 PM |
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I use one... Fine for my application and works very well. Been in the car for a year or so with no probs...
Have a look: Clicky for piccy
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Guinness
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| posted on 8/9/06 at 03:25 PM |
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Thanks, but what do they actually do?
Sorry if I'm being thick!
P.S. Love the Prototype front downforce plate and turning vane!!!!!
[img]http://www.best-guess.co.uk/westfield_turboblade/2005_images/apr/[/img]
Mike
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mb893
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| posted on 8/9/06 at 03:37 PM |
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Oohps, sorry - forgot that bit...
The pawls are thrown out by centrepetal (?) force and 'push' the clutch plates together... Just a flash name for a centrifugal clutch
really.
To increase the force on the clutch you add washers to the nut/bolt arrangement - up to 6 per pawl, which would probably push the back of the engine
out of it's case!
Currently I'm running with soft springs (about twice the rate of Barnett/honda ones) and one washer per. I have run with very heavy springs that
were four times the rate of Barnett/Honda jobbies and no washers - but was a tad over kill.
"P.S. Love the Prototype front downforce plate and turning vane!!!!!"
I know, what was I thinking 
[Edited on 8/9/06 by mb893]
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Guinness
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| posted on 8/9/06 at 03:56 PM |
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Thanks!
So it stops clutch slip! Cool. But does it make the clutch harder to open? I already have a set of EBC uprated springs ready to go in.
Do the aero aids work? Mine lifts like a ba57ard at high speed (officer)!
Mike
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G.Man
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| posted on 8/9/06 at 04:38 PM |
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LUV-001 Lockup Clutch ZX12 w/spacer $527.00
mmmmm might save me some clutch plates... lol
Opinions are like backsides..
Everyone has one, nobody wants to hear it and only other peoples stink!
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mb893
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| posted on 8/9/06 at 05:32 PM |
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Only at high revs and then not too much. When I had the special HD spring I sorted out the clutch was a bit 'stiff'... much more comfy
with the softer springs.
When pulling away the lockup really isn't doing a lot... I can feel my one pushing back at you from around 6000 - 8000rpm but I tend not to use
the clutch on up changes for 3/4/5/6 and only dip it on the downs.
My experience of EBC/Barnett springs/frictions is 'not a good one'. I came away from using them with the feeling they were made from
plasticine 
A full Barnett jobbie lasted 12 laps of Bruntingthorpe before melting... while the current clutch has been in the car for over a year!
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