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James NC30
11-28-2011, 04:24 PM
Hello all,

Im looking for some of the internal dimensions of the engine, Have found the obvious bore,stoke and various valve lift data. Came across quite a useful pdf although struggling to find more in depth details.

Wondered if anyone had a link to a workshop manual or technical drawings with valve or port dimensions?

Any help would be much appreciated :worship:

usherp_250
11-28-2011, 04:53 PM
This could help
http://slorider.com/Aprilia/
Of not I'm sure someone here WILL help out
Good luck

James NC30
11-28-2011, 05:32 PM
Thanks for that link there is a wealth of information there! Gained some of the valve information from the limit values ie valve seat width. Still missing valve diameter, also stem diameter would be good so if anyone can shed any light would be great.

Looking at developing a solidworks model of the engine to develop a intake manifold/ plenum for use on a single seater race car. Not got hold of an engine to take measurements yet so its all simulations to begin with.

Also whats the market place like for uprated parts like considering larger valves, high compression pistons etc.