I understand.
I like you and all, but what are you trying to figure out or prove? If a sled with an equal hp/weight ratio as a car is faster or slower than the car?
FWIW, I was never really impressed with my turbo RX1. I ran it on AVGAS and it made about 260 horsepower. Can’t imagine it without the turbo (I bought it, rode it into the garage, and turbo’ed it). Sure, I know yours is faster, but still.
Look up Clay Rafferty. He’s a huge name in sled racing and lives about 15 minutes from me. My father ran “Team Kyotee” in the 80’s, a very successful race team.