Originally Posted by
kyosho17
You want.18-.25 on your squish point are at least that's what I've read and been told! The mabma comes ready for 30% which is .20ths one shim so if u run 25% you could drop that some without hurting engine. Always remember to check the pistion doesn't hit bottom of head button hope this helps some.
Thank you, that helps.
Problem is that there is only 0.1 and 0.2mm shims to buy from Axe Rossi, could try a 0.1mm shims, that would give a total squish clearance of 0.45mm. A colder plug could help to.
Not my engine, helping a friend so I want to get it as right as possible from the start.
