did my engine bay last night at said carwash above.. i gues one thing that helps is i keep it running do the engine bay first them the rest of the car so by the time i'm done most has evaporated/dried...

no supercharger on mine either it's an 01 ss pace car

 

I read an artical years back, say 10. They recomond you never ever power wash your engine. To many wires attatchments to come loose. Especially when you have a stubborn spot. Get up close and blast it. Personaly I try to wash my motor once a month. Engine cleaner, tooth brush, rags and elbow grease with a garden hose with out a pressure handle. Some sprayers are so strong I'm thinking they could tear through vacuum hoses.

 

Yeah vacuum lines can become brittle after a few years and spraying with high pressure sound like YOUR ASKING FOR IT but CLEANING THE MOTOR MAKES A GOOD SHOW PIECE