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Barrykearley

Esprit S4 clutch

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Righto - come on chaps I'd like to bottom this out.

the clutch seems to be some kind of secret - and I'd just like it to be simple cross referenced 

I've bought a brand new one from SJ. It's a Valeo kit - 801299.

this has been somewhat hijacking @ian29gte thread - so here it is in its own topic

IMG_1917.PNG.05ae99919c88630e5094042a8617490a.PNGIMG_1916.PNG.39e145616cfff6ed43da4c6acb67fdc3.PNG

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The S4 & GT3 clutch pressure plate should be rated at 7000 N (I've seen one removed from an S4 marked 235 CP 7000) and the S4s & S300 rated at 8300 N.

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For reference, the discussion on S4/S4s/S300 clutches on Ian's thread starts here:

continues for about a page and ends here:

 

On 01/07/2017 at 07:41, sailorbob said:

The S4 & GT3 clutch pressure plate should be rated at 7000 N (I've seen one removed from an S4 marked 235 CP 7000) and the S4s & S300 rated at 8300 N.

So the one Barry bought from SJ is slightly underrated for an S4 then at 6500 N? Do we think it will suffice?

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It'll do till I breaks it.....

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Holy thread hijack Batman! I know this is old news but I am keen to bottom out the mystery of the UN1 clutch cross reference once and for all....

I found this info in a Valeo catalogue and thought I'd share:

 

 

 

Looks like either the 801299 or 801300 kits are both suitable.... !

 

image.png

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Fits, but the clamping force is too low.  You name it, I've tried it, PNM has the best solution in my opinion.

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Thanks for the advice but I'm still tempted to take a gamble on one just because I am quite tight and don't like paying "specialist" premiums.... Has anyone suffered any ill effects of a 6500nm clamping force?? Does it cause slip?

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I’ve posted this before - in the cross ref section.

the Valeo kit is what sj sell - I’ve booted the daylights out of mine and it’s not slipped yet

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Each to their own.  I'd always fit a kit proven by a specialist in preference to something designed for an old Renault 25.  And as a prospective buyer I'd be looking to pay less, knowing any out-of-spec components were fitted.

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The SJ kit has been fitted to hundreds of uk esprits - I’ve not seen much reference to issues with it. 

It is standard valeo stuff as well. 

Some of the other stuff SJ sells which doesn’t perform well - we all know about frankly - so I would consider this clutch to be fine or we would see topics everywhere

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I've had a clutch fail at c6000 miles on the lower clamping force BUT, the engine isn't standard, so some of that degradation of durability may be caused by the increase in torque.

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47 minutes ago, sailorbob said:

The Valeo 801300 kit's clutch pressure plate is only rated at 5500 N.

And that’s what you get from SJ 👍

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Yes - please see the very top post all the info is there.

you will also notice cp6500 stamped on the plate

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A straightforward Google shows that as being listed for various V6 Renaults (the 25 and GTA Alpine etc). How accurate that might be is unknown to me. 

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:cheers: Special Edition for a special boy. 

 

Is it ok to go off topic now the question has been resolved? :D 

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I ended up going for PNM Engineering PNMQ0014 kit for mine when I swapped it earlier in the year. My car has since been dyno'd at 301bhp and it seems fine. So that's another option. I didn't take a photo at the time of what the new clutch actually is though sadly.

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Lotus Esprit S4s/ Sport 300 Clutch Kit number is

PNMQ6070 .  Anyone has its clamping force & torque rating?

Edited by MrDangerUS

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6 hours ago, MrDangerUS said:
Lotus Esprit S4s/ Sport 300 Clutch Kit number is

PNMQ6070 .  Anyone has its clamping force & torque rating?

 

133602P5254701607AF.jpg

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