Get the Sierra gear and don't muck about with it.
I ran my FG90 on the weekend for the first time, it had already been broken in by Ray English when he did the mods. It is a beast! 6400 RPM but it was getting hot pretty quickly so had to pull throttle back. Might be a calibration issues with my telemtery system so will buy a laser temp gun from auto store to confirm the temps.
It was running on a test stand with no baffles so expect it to be cooler with baffles.
Last edited by planenutzz; 11-29-2021 at 12:13 PM.