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Old 01-30-2013, 02:19 AM   #84
JMo (& piglet) OP
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Joined: Apr 2007
Location: Somewhere west of Laramie...
Oddometer: 3,940
Thanks Kasuyaho - that is good information!

It so happens that Rally Raid are just up the road from Cosworth Engineering in Northamptonshire (as many people know, that county is essentially the hub of F1 engineering in the UK) and John has already been talking with their development guys about exactly this issue.

He has a profile already mapped that ought to reinstate the compression ratio to where we want/need it, based on the new stroke characteristics, and will be machining a prototype piston on his own CNC machine in the next few days, together with the custom crank...

Nerdy photos of shiny metal to follow soon I hope!

Jx
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