Ran the P5 in Truggy and Buggy this weekend.
9901/021 in truck
9886/021 in buggy
I was very surprised with this engine on a large out door track with big jumps. This engine held its own against some top engines. I did run on the lean side. Getting 9 mins in truck and 10 in buggy at 5000 feet up. I am very happy with these engines.