My pistons? lol
I bought the pistons that are in my motor in a hurry, and there's always something that I've wondered since. They are listed as 9.2:1 for a DET with 45cc head. What does that mean for me lol? What is my actual compression? Here's the link for my pistons though it doesn't have much info.
Race Engineering - Pistons
Race Engineering - Pistons