Originally posted by dino.tw
The D5 coming with total 0.5mm shims.It is optimized for 25-30% Nitro. I suggest you to use low %(5-15%) nitro to break-in your engine.If you plan to use 25-30%Nitro,you don't need to take out shims when breaking in.
hi dino...so do u mean we have 2 take out the shims when using 15% or lower when breaking in it?