Fiat Coupe Club UK

GTA clutch VS Stock clutch : wich is better?

Posted By: Anonymous

GTA clutch VS Stock clutch : wich is better? - 11/09/2008 18:28

Hi guys ;\)

I've just bought a complete clutch kit of ALFA 147 GTA for my 20V turbo. I bought it because you said me it is plug'n'play on our 20VT.

But someone tell me the 20VT clutch is more resistant than the GTA clutch \:o He tells me that the Fiat clutch can support more torque! \:o

I just want you to put me at rest. Are we wrong when we say that the GTA clutch is better than the Fiat clutch?

I hope i haven't bought it for nothing \:\(
Posted By: Anonymous

Re: GTA clutch VS Stock clutch : wich is better? - 11/09/2008 20:20

They are the same cover & release bearing but the GTA friction disc is bigger. Thats all.
Posted By: Anonymous

Re: GTA clutch VS Stock clutch : wich is better? - 11/09/2008 20:26

 Originally Posted By: TurboJ
They are the same cover & release bearing but the GTA friction disc is bigger. Thats all.


Ok TurboJ

So if the friction disc of the GTA is bigger it will accept more torque than the OE clutch

I don't understand why the guy i meet told me the Fiat is better! Maybe a jealous person \:D
Posted By: Anonymous

Re: GTA clutch VS Stock clutch : wich is better? - 11/09/2008 20:29

The covers/release bearing are the same part number.
More surface area = less slippage = more torque ;\)
Posted By: Anonymous

Re: GTA clutch VS Stock clutch : wich is better? - 11/09/2008 20:40

GTA should be a bit better - but not a world of difference.

As long as it holds your level of power then either would be fine.

They are also the same price, so take your pick IMO....
Posted By: Anonymous

Re: GTA clutch VS Stock clutch : wich is better? - 11/09/2008 21:02

Thanks guys

In France the price of the GTA is smaller than the price of the Fiat clutch ;\)

So : better price and better grip! That's a good deal \:D

Happy to know i've made the good choice ;\)
Posted By: Anonymous

Re: GTA clutch VS Stock clutch : wich is better? - 11/09/2008 21:24

Sorry to hijack the thread but will the GTA clutch work on all 20VT's, or is it just 5 speed or just 6 speed cars etc...

Cheers, Simon.
Posted By: Anonymous

Re: GTA clutch VS Stock clutch : wich is better? - 11/09/2008 21:54

 Originally Posted By: TurboJ
The covers/release bearing are the same part number.
More surface area = less slippage = more torque ;\)


It all depends of the clamping force of the cover.
If i'm not mistaking a GTA disc accepts less torque than a standard disc but wears slower.
Posted By: Anonymous

Re: GTA clutch VS Stock clutch : wich is better? - 11/09/2008 22:25

 Originally Posted By: dink
 Originally Posted By: TurboJ
The covers/release bearing are the same part number.
More surface area = less slippage = more torque ;\)


If i'm not mistaking a GTA disc accepts less torque than a standard disc but wears slower.


That's exactly what the guy i met told me \:o

Hum... where is the truth \:\?
Posted By: Anonymous

Re: GTA clutch VS Stock clutch : wich is better? - 11/09/2008 22:44

Who cares - with your mods either will do the job no probs!
Posted By: Anonymous

Re: GTA clutch VS Stock clutch : wich is better? - 11/09/2008 23:10

 Originally Posted By: suba
Who cares - with your mods either will do the job no probs!


I care... because of the mod i'm going to do in the next weeks \:D

Big Hybrid T28 is coming from England (stock size for the turbine, trim 64 for the compressor... i know this is experimental... i hope it will be fine ;))

FMIC is ready to be on my coop too \:#

I've heard that standard clutch can support 320/330 hp! Hope that's right because i want this power \:D
Posted By: Kelv27

Re: GTA clutch VS Stock clutch : wich is better? - 11/09/2008 23:18

For clutches, it is measured in torque so bhp figure don't matter. Even with a hybrid turbo, the standard and GTA clutches will do the job sufficiently well. Youre probably only gonna get 250-270 lb/ft of torque with that sort of mods anyway.
Posted By: Anonymous

Re: GTA clutch VS Stock clutch : wich is better? - 12/09/2008 06:09

 Originally Posted By: Kelv27
For clutches, it is measured in torque so bhp figure don't matter. Even with a hybrid turbo, the standard and GTA clutches will do the job sufficiently well. Youre probably only gonna get 250-270 lb/ft of torque with that sort of mods anyway.


Fine ;\)

Thanks again
Posted By: Gaz

Re: GTA clutch VS Stock clutch : wich is better? - 12/09/2008 07:35

 Originally Posted By: symonh2000
Sorry to hijack the thread but will the GTA clutch work on all 20VT's, or is it just 5 speed or just 6 speed cars etc...

Cheers, Simon.



It will fit all 20vt models and the 16vt as well.
Posted By: Anonymous

Re: GTA clutch VS Stock clutch : wich is better? - 12/09/2008 08:17

 Originally Posted By: Gaz
 Originally Posted By: symonh2000
Sorry to hijack the thread but will the GTA clutch work on all 20VT's, or is it just 5 speed or just 6 speed cars etc...

Cheers, Simon.



It will fit all 20vt models and the 16vt as well.


Thanks again Gaz. \:D
Posted By: Anonymous

Re: GTA clutch VS Stock clutch : wich is better? - 12/09/2008 15:17

 Originally Posted By: dink


It all depends of the clamping force of the cover.
If i'm not mistaking a GTA disc accepts less torque than a standard disc but wears slower.


Yes increased clamping force increases torque rating but so does the surface area of the friction disc since both covers are the same only the surface area matters. The GTA disc is bigger than the coupe one.
Posted By: Mark_S

Re: GTA clutch VS Stock clutch : wich is better? - 12/09/2008 18:57

I would go for a Helix organic clutch, don't think GTA significantly better, whereas Helix will give you a big safety margin
Posted By: Anonymous

Re: GTA clutch VS Stock clutch : wich is better? - 12/09/2008 21:10

....but it cost just a tiny bit more than a gta clutch.... \:o
Posted By: MCMike

Re: GTA clutch VS Stock clutch : wich is better? - 12/09/2008 21:48

Do it once, do it right - I fried 3 clutches before I saw sense and went for a Helix.
Posted By: Anonymous

Re: GTA clutch VS Stock clutch : wich is better? - 13/09/2008 00:04

Minipit, pourquoi tu vas si loin pour trouver une réponse?
Tu sais que delta il est partout \:\)


p.s. sorry boys, but me and minipit know eachother, altough he diden't realise before \:D


I've tried all of them and my conslusion i make is:
- stock clutch: 400Nm of peak torque ok but fast wear rate.
- Walkers organic : 400Nm max torque as well but lasts longer
- Helix: really good stuff but haven't been able to finsih one. It does accepts 400Nm sustained torque for sure.


Nobody ever metions skimming the flywheel is primordial on a new clutch.
Posted By: Anonymous

Re: GTA clutch VS Stock clutch : wich is better? - 14/09/2008 23:07

 Originally Posted By: dink
Minipit, pourquoi tu vas si loin pour trouver une réponse?
Tu sais que delta il est partout \:\)


p.s. sorry boys, but me and minipit know eachother, altough he diden't realise before \:D


I've tried all of them and my conslusion i make is:
- stock clutch: 400Nm of peak torque ok but fast wear rate.
- Walkers organic : 400Nm max torque as well but lasts longer
- Helix: really good stuff but haven't been able to finsih one. It does accepts 400Nm sustained torque for sure.


Nobody ever metions skimming the flywheel is primordial on a new clutch.


C'est toi! Trop fort \:D \:D

What do you mean by skimming?
Posted By: Gunzi

Re: GTA clutch VS Stock clutch : wich is better? - 15/09/2008 08:23

You "skim" a small amount of the surface of the flywheel off, to ensure it's totally flat before fitting the new clutch \:\)
Posted By: Jamiepm

Re: GTA clutch VS Stock clutch : wich is better? - 15/10/2023 17:46

No, but use this link instead as these are better

https://clutch-specialists.co.uk/collections/fiat/coupe
Posted By: Countrycruising

Re: GTA clutch VS Stock clutch : wich is better? - 16/10/2023 08:06

Originally Posted by mkmotorsport
Has anyone a buy link for the GTA Clutch?


Autodoc part number 826319
Posted By: paul

Re: GTA clutch VS Stock clutch : wich is better? - 18/10/2023 07:16

Originally Posted by Mark_S
I would go for a Helix organic clutch, don't think GTA significantly better, whereas Helix will give you a big safety margin



yup I agree -- I run @400bhp , helix organic clutch been in the car for years , ok not doing a high mileage , but well up for the job wink
Posted By: Begbie

Re: GTA clutch VS Stock clutch : wich is better? - 18/10/2023 07:43

/insert usual statement

Clutches are rated for torque, not BHP

tongue
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