Originally Posted by
Riketsu
Can someone tell me how many shims do I need for a Novarossi 353 and a 12-3SCT if I use 20% fuel???
Not sure about the 353. but I measured my 3SCT tuned and with no shims; it has a real head clearance of a .20mm so for 20% i would add .25mm shim. the engine comes with a .30mm shim. I install an additional .1mm with the .30mm shim for 25% which gives me a total head clearance of .60mm. A little fat for 25% but better to be safe.
Pass you soon...