RE: Too long WOT?
Actually the car/buggy engines are very simular to marine engines and as long as your car/buggy/truck is leaving a nice trail of smoke out the pipe while you are running wide open it is getting lubricated and will be just fine but you should know that as long as the throttle is "WOT" the engine temp will increase- how much depends on way too many different factors to list here. A marine engine does have the advantage of fresh cool water to help control the heat soak where a land driven engine does not. The best thing to do if you like to run WOT is start of with a at temp engine and make a pass no more than 3-5 secs. long and check your engine temp. Now make another pass only a little bit longer and check your temp. Keep doing this and you will learn what you can and cant do with your engine. By the way for most nitro engines 300 degrees is kinda hot, I do know the traxxas engines love to run hot, but most other engines will be much happier below 270-280. Most ABC (pinch) engines dont even get a good piston sleeve seal until 200-225 degrees and running them below operating temp will wear out a piston and sleeve really fast... Best of luck to ya!