The V8 Owners Forum -

hello all,

Got the opportunity to change from my present 9.5ins clutch to a 10.5ins size clutch, in my westfield on my 4.6 v8.

But what benefits would this give me?

I done about 475miles on the 9.5ins clutch and cant say I didn't do the job, even with close to 300bhp.....so do I need to 10.5ins clutch?....would it be worth changing.

Present GEMS flywheel is drilled for 9.5ins & 10.5 clutch, so not much work to do to change, maybe a re-balance.

cheers

scott

What exactly is the problem with the current clutch ?

9.5" still isnt small, and is ample diameter for any lightweight vehicle.

Maybe you would get a lighter clutch pedal?

Chris.

nothing wrong with my 9.5ins clutch, worked fine in the passed.

Clutch plate does hang off internal diameter of flywheel by about 5mm, as its meant to have a 10.5ins clutch.

I'm having some other engine work done, which will end up in a re-balance, so thought do I now fit a bigger clutch, as i'm also changing to a T5 gearbox, so I can now fit one in.

Nothing worse than wishing I have done something.......after the engine is done......

Thought I better ask and satisfy my own curiosity.....

regards

scott

If the current clutch is fine, grips, drives nicely etc etc, then I really cannot see any reason to change.

All you're doing is adding a heavier friction disc for the synchros to deal with, and also through diameter alone adding weight to the flywheel/clutch combined mass, and weight at the outer diameters that can be felt the most ( although to be fair it is probably such a small amount it'd hardly make much odds )

But in a lightweight vehicle, why add mass for no reason ?

Lots of guys sticking 300/330 through AP Racing 9.5" clutches (TVR 500 spec) reasonably light too

I'm putting over 400 through mine,
it does get a little slippy after a good days racing at the pod, but that's due to the slicks lol,
its fine on the way back home again, think mine gets a little hot lol.

cheers all,

its a question I needed to know the answer too.

I'll keep it all as it is then, no problem, one less thing to worry about.

Waiting for pistons to get valve cutouts, then engine balance...then finally rebuild time......

regards

scott

SimpleSimon wrote:Lots of guys sticking 300/330 through AP Racing 9.5" clutches (TVR 500 spec) reasonably light too

what specs are they mate ???

Would you need to re-balance the engine with a new clutch?
I thought they were a balanced item so effectively they could be bolted on in any orientation?

Tom.

Chesman's have now pocketed my pistons...

and in 3 wks I'm taking the rest for a re-balance.

was done a few years back at a place in York, but I want to make sure this rebuild is as good as it can be.

Which is why I asked about the clutch in the first place, I'm spending a lot of money on this build about 4k.....and what to make sure I get what I want out of it.....

for the moment I am sticking with the 9.5ins clutch I have.

scott