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coolhead 20cc domes ,do i need to weld my crank

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forwheel
50cc nipper


Joined: 14 Dec 2009
Posts: 16
Location: sydney

PostPosted: Wed Dec 23, 2009 9:48 am Post subject: coolhead 20cc domes ,do i need to weld my crank Reply with quote Back to top

would i need to weld my crank if i ran 20cc domes ? and would 98 octane be ok to run with this setup?
 
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4stroker



Joined: 15 Jan 2007
Posts: 1420
Location: North Queensland

PostPosted: Thu Dec 24, 2009 3:35 pm Post subject: Reply with quote Back to top

no to welded crank and yes 98 fuel ok
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4stroker



Joined: 15 Jan 2007
Posts: 1420
Location: North Queensland

PostPosted: Thu Dec 24, 2009 3:36 pm Post subject: Reply with quote Back to top

actually if they are pro design domes then im not so sure on the fuel being ok... if they are noss then you can run up to 19cc with only 98 octane fuel
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forwheel
50cc nipper


Joined: 14 Dec 2009
Posts: 16
Location: sydney

PostPosted: Thu Dec 24, 2009 4:38 pm Post subject: 20cc domes Reply with quote Back to top

thanks for the info, just out of interest what would be the difference with pro's and noss 20cc , would'nt the compression ratio still be the same?
 
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