Originally Posted by
Bill Adair
Jim,
All Cox .049 engines have the same stroke, so the TD cylinder and piston should not require much in the way of head shims over a stock TD.
Here is a great article by Paul Gibeault that may help you to set up your GB properly. You will probably have to drill out the venturi to get the best performance.
http://coxengines.ca/files/MRP.pdf
Good luck with your hop up!
Bill
Bill thank you for that, that is a very good article, and i will try this information out.
Again thanks and take acre.
Jim