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240 or 270mm clutch?

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240 or 270mm clutch?

Postby Retrohowla » Tue Jun 12, 2018 5:37 pm

Afternoon chaps, a little advice if you'd all be so kind please.
I have a 94/95 2.5td, 100ps and mt75 in my MK2, manual Bosch pump, boost and fuelling wound up, intercooled, 255/70/16 all terrain tyres and a 4.11 diff, she'll pull a ton without too much bother. Average weight 3-3.2t
She's running a 270mm clutch.
I need to replace the clutch as it judders like a sod.
The trouble is, I'm struggling to find a good quality, fairly priced 270mm clutch kit anywhere. Local factors want £250 for an Luk.
Is anyone running a tuned turbo DI In a lwb, through a 240mm clutch without issues?
Any input would be greatfully received.
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Re: 240 or 270mm clutch?

Postby Retrohowla » Wed Jun 13, 2018 8:43 am

Sorted now, managed to source a 270mm through Ralph.
It would still be good to know for future reference if the 240mm would handle my set-up.
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Re: 240 or 270mm clutch?

Postby cherniy_chack » Thu Jun 14, 2018 5:59 pm

High power requires a large contact area of friction clutch discs.
In your circumstances, the service life / mileage of the clutch 240 mm will be half as much as the 270 mm clutch.
You need a sudden repair with a loss of money-put a clutch 240 mm.
But you already put 270 mm.
It is right!
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Re: 240 or 270mm clutch?

Postby gotgcoalman » Thu Jun 14, 2018 6:04 pm

cherniy_chack wrote:High power requires a large contact area of friction clutch discs.
In your circumstances, the service life / mileage of the clutch 240 mm will be half as much as the 270 mm clutch.
You need a sudden repair with a loss of money-put a clutch 240 mm.
But you already put 270 mm.
It is right!


+1
agree with cherniy.
Using an under rated clutch =

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Re: 240 or 270mm clutch?

Postby MinorMatt » Thu Jun 14, 2018 8:03 pm

Defender V8 clutch is the same. I buy plates and covers seperately. AP racing ones about £120 the pair
96 N 120 Turbo'd DI SWB Low
96 P 150 TD (100PS EPIC) LWB Hi-Top
97 P 150 76PS Di SWB low ex essex police

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Re: 240 or 270mm clutch?

Postby MinorMatt » Thu Jun 14, 2018 8:08 pm

Actually much cheaper than that

CP5077-14 and CP5077-15.

Just bought a plate and cover (AP racing) for £60
96 N 120 Turbo'd DI SWB Low
96 P 150 TD (100PS EPIC) LWB Hi-Top
97 P 150 76PS Di SWB low ex essex police

Lucas laser 2000 & IDS onwner

Gaffa tape is like the force - it has a light side, a dark side, and it holds the universe together.
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Re: 240 or 270mm clutch?

Postby Retrohowla » Sat Jun 16, 2018 1:06 pm

Nice one thanks for this info, everywhere seemed to suggest the 240mm was fine for TD applications, even the Jumbo's, but I had my doubts it would with my setup, hence my search for a 270mm.
Matt thanks for the heads up there, I'll check them out
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Re: 240 or 270mm clutch?

Postby Frag » Sat Jun 16, 2018 4:21 pm

My old '92 mk4 150s, had the bigger turbo spec clutch fitted from the factory as an svo option.
It was AA van new,and had the 80ps banana engine with the 5:13 diff.
Good idea knowing the towing use it would get working for the AA.
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