Originally Posted by Tabushi
Hey amigo, onde voce esta correndo (altura do nivel do mar) para usar .62 de shimming einn ? ... abraço amigo ...
Hey ... where are you running (mts over the sea ?) to be using .62 of shimming ?
cya !
Hey Pato...how are you
He ¡s probably using 0.60mm of shimming, because the Picco, Mega and LRP engines have 0 mm difference between piston at TDC and head button, so chamber volume is direct related to shims in this engines.
From the factory they come with 0.40mm (0.20 + 0.10 + 0.10), which is good enough for 20% Nitro. For 16% Nitro you may get away with 0.30mm. For 25% nitro 0.50mm and for 30% nitro 0.60mm, and I know some drivers even use 0.70mm with 30% Nitro to be on the safe side and with more high end.
Of course all of this measurements at sea level altitude.
AFM