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Kirkham Motorsports

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  #16 (permalink)  
Old 08-23-2015, 03:59 PM
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Join Date: Aug 2009
Location: Adelaide, SA
Cobra Make, Engine: AP 289FIA 'English' spec.
Posts: 13,152
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Quote:
Originally Posted by Rossba View Post
Glen

Just checking. Your 5.0 shoukld have a 157 tooth 50 oz flywheel and a 3 bolt passenger side starter motor from factory with a 10.5 inc clutch and a cable oreating the clutch fork onto the thrust bearing.
It sounds like you have a bell housing out of a earlier Falcon with the 2 bolt starter on drivers side which would need the 164 tooth fly wheel which were 28 oz and a hydraulic operated clutch fork.
From I can see you may need to get a 164 tooth fly wheel made with 50 oz balance.
My Cobra is running a AU XR8 5.0 which was a auto. I had to get a flywheel, bell housing and clutch. The gearbox is a 6 cylinder T5 which is the same gearbox as a V8 but with a shorter input shaft.
All our gear came from Castelmain Rod Shop except the motor and gearbox. It is the same as stock apart from the clutch kit. Which is RPM 111N
I found this the easiest. The hole set up works fine. Only done 1 track day at Winton and no drag racing yet.
Hi Ross,
My 5.0 is a Tickford 220kW engine, and it came to me with a flexplate still attached which is why I'm asking questions about flywheels and clutches and HTOBs.
In addition, what I already have is a QuickTime RM-6063 scattershield and a WR Toploader, so it's a very late 5 litre SBF matched to a 50 year old gearbox.
The flywheel must be a 157 tooth, and of course, 50 ounce imbalance. Clutch must be a 10.5" max. Starter is a 3 bolt, not 2 bolt.

So....you have a Clutch Industries RPM R111N? That's one I have under consideration; the other is an Australian Clutch Services (local Adelaide) "Xtreme" brand KFD27001-1A
Both are 268mm dia. x 10 spline x 27.0mm (1-1/16")
Suitable flywheel is an Xtreme chrome moly steel FFD001CL

Both of these clutches are (I think) similar to the OEM unit which is more than adequate for such a light car.

Last thing under consideration is a hydraulic throw out bearing. I have to use one of these because there is not sufficient tunnel room for a protruding clutch fork.

Sounds like you're happey enough with your RPM 111N clutch?

Cheers,
Glen
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