There’s one thing the 24 Hours of LeMons is adamant about: documenting your cheating. Any parts added to the car either need documentation or they’ll be assigned a value in inspections. If you swap “found” parts into an FD Mazda RX-7, you’re going to invoke the “Pratt & Miller Rule,” as this team did.

One team at Thunderhill Raceway Park this weekend decided to use a V8 out of a modern-era GM truck mated to a T-56 six-speed transmission from a ‘98 Camaro, and mistakenly pointed out that those were items picked up from the shop listed on the car. Let LeMons official Judge Phil explain why one does not just use “free parts” in crapcan racing:

Why is it the Pratt & Miller Rule? GM racing powerhouse is insanely good at what they do, with numerous 24 Hours of Le Mans wins to their name. Several employees once showed up to the 24 Hours of LeMons with a Camaro full of “parts lying around the shop,” and LeMons wasn’t having it.

Clearly, asking ex-Audi Le Mans hotshoe Emanuele Pirro if he wants to race is a more effective means of bending series’ rules in your favor than getting cast-off go-fast parts from work. (Hey, I have a 944. Offer’s open. I’m just sayin’.)

If you’d like to follow along with the race at Thunderhill this weekend, has twelve different cameras, both on cars as well as on the penalty box (where teams will be busted for other lemony offenses). Enjoy!