[QUOTE=MassiveMods;5558471]Go Engine Shimming 101

When the engine is new i recommend for the first 5 litres or first gal and a half ( for imperially impared ) Running .4 to .6 shim

Shims VS Heat Emissivity.

The more shims you run the lower the comp ratio, less tank time, and the cooler your head will run but this will give you hotter exhaust temps so if you are melting bodies thats why !

Less shims = higher comp = hotter head button and heat sink = Cooler exhaust temps = not melted body , better tank time..

I checked my engine shims in my MM5 7 port twice and found only 2 x 0.1mm copper shims ..so looking at the above info 0.5 total which with my 25% nitro would be fine ..but I was still melting bodies..Just took it apart again tonight and finally found the 0.3mm aluminium shim that was disguising itself as part of the top of the crankcases..DUH! That would make 0.5 total shims fitted for running in also as detailed above..Maybe I need glasses..

can't wait to fire this up at the weekend..I promise the photo's of me and the circuit will appear this weekend MM mark!!One last banked corner to shape and the circuit is officially open on saturday afternoon..man this winter seems to have lasted forever..