RE: New Jett engine?
Nope... its real.
It is a bad boy engine. Somewhat unknown, but it has been around informally for a while ... and it costs the most of all the options. I put it on the website a few months ago with the price updates.
Dub built the first one for someone who wanted the ultimate power in this GP Toni. Seemed to fit the bill.
The extra displacement give it a bit more torque than the 90LX. But that is tempered by some rpm limits... it needs more prop... it will not run like a fan engine. It really likes a 12x9.
The 90LX is more comfortable with higher rpms running 11x8, 12x6 and 10x10 props.