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  #11 (permalink)  
Old 12-12-2010, 05:39 AM
Outwest34au's Avatar
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Join Date: Oct 2007
Location: Near Emerald, Qld
Cobra Make, Engine: Evans kit, 6 litre, 6 speed, Jag F/R,
Posts: 366
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Stumpy, found your clutch post.

What Is 5/8 In mm? 15.875
15.875 x 30 mm = 23761.473214285692

3/4 in mm is 19.05 in your modded cylinder x 30 mm stroke = 34216.5214285714

7/8 in mm is 22.225 mm
Wilwood 7/8 dia, 1.2 inch (30.48 mm ) stroke yields 47317.64729999997

1 inch is of course 25.4 mm for our needs, I think the wilwood 1" is also 1" stroke which would be 25.4 x 25.4 = 51502.2011428571.

results are in cubic millimetres as per calculator at http://www.online-calculators.co.uk/...ndervolume.php

If you have limited pedal throw go for the 1" type, will be a bit heavier naturally, 7/8" gives a good pedal and got the resistance I like. Some nissans had a 7/8" dia but not sure of the stroke I went for the known quantity. Getting sick of buying multiple parts/ running upgrades.

You do the maths. (facepalm) been done for you
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Ya get that on big jobs.

Last edited by Outwest34au; 12-12-2010 at 05:56 AM.. Reason: Changed the word thread to post
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