The Nova is a sweet engine. I will be breaking mine in this weekend possibly.
Some videos I pulled from YouTube -
Big Red LST2:
https://youtu.be/Cno3CVUL-ic
LRP .28:
https://youtu.be/eMS0yWJJuAk
Novarossi Legend 28-8 in an LST XXL:
https://youtu.be/SH9TMB4tNIo (note the engine exhaust note compared to the other videos. You can tune the Rossi much sharper than you can any of the SH variants. This is one of those minute details you can't read about or see with the naked eye. The Rossi does use turbo glow plugs which are a little more expensive than standard plugs, but they take more abuse, last longer, and make more power.
Another from the same guy.
https://youtu.be/Ihuc7OX6kdQ
Pictures below of my pair of LST2 trucks. Nova Rex Legend 28-8RT in one and Picco P3 .28 in the other. The Picco P3 is discontinued; replaced by the Picco Boost line. I got the P3 NOS from my LHS for $184 which is a
steal. I found a NOS piston/liner for $50 too, so I have backup parts for it. After experiencing these engines, I'll never buy another SH based engine. I guess I'm an engine snob now.