Hi,
I use to have a Thunder tiger nitro buggy about 10 years ago, and I have just picked up a FTX Frenzy cheaply to get back into the hobby with me two boys. I also build and fly FPV racing drones, so I'm quite knowledgeable in the RC part of the hobby, but only have a basic understanding of Nitro engines.
Hope you all don't mind me picking your brains along the way, and hopefully I can help others.
Cheers,
Paul.