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Home > Help Needed / General Tech Chat > Clutch Confirmation

JonnyAlpha

28 Posts
Member #: 12124
Member

South West

2nd Dec, 2021 at 08:30:49pm

Hi,
I am building a 1310 that will start out as a Normally Aspirated engine, but am hoping to add an SC in the future and therefore want to ensure that I don’t need to strip the engine to make the conversion.
The NA engine will push out around 80ft/lbs torque, when I convert to SC the CR will be 8.5 with 10PSI with an anticipated output of around 130 ft/lbs at 4000/6000 RPM.

Currently I have a MED ST1 Lightened Flywheel and Clutch kit. I have been told that this is only good for about 70ft/lb.

I’d like to upgrade this clutch by fitting an extra 988 spring but don’t have a clue where to get one from? All the ones on MiniSpares for instance don’t seem to be differentiated.

So can anyone advise on which additional spring to fit so that the clutch does not slip and still has a good feel.

Thanks

Speed is just a question of money, so, how fast do ya wanna go?

wolfie

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8215 Posts
Member #: 90
Post Whore

Somewhere around Swindon

2nd Dec, 2021 at 11:12:25pm

You cant add a spring on the pre verto, you would need to change the blue clutch diaphragm to an orange.

Crystal Sound Audio said:
Why wolfie...you should have your name as Fuckfaceshithead !


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JonnyAlpha

28 Posts
Member #: 12124
Member

South West

3rd Dec, 2021 at 08:19:14am

Sorry, I should have mentioned this is a Verto clutch and all the clutch mechanism is Verto (short arm).

Speed is just a question of money, so, how fast do ya wanna go?
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