Hmm.

IF you want to test how you engine will run with the extra power, why not
simply up the nitro to 50%??

At least you will see what extra power will be like in the engine. I'm not saying the engine will survive for a long time with the increased power, but, you should at least get to see what the additional power feels like.

I think if you really want to see what crazy power feels like, run an electric buggy on a 6 cell lipo. Now that's some seriously stupid power. If you can control it.