John, it really depends on how much fuel you allow in, and how big the intercooler and how restrictive is the exhaust. My 80 never goes over 850F but the troopy is running with much more fuel in the IP and a much smaller intercooler so I can get it to 1050F on a steep long hill pushing it in 5th at 70 mph. All temps are pre-turbo.That is very cool! And the plastic surgery was amazing. Good for you for perservering.
Question: I see you have a nice intercooler on that FT. DId you happen to measure before and after temperatures? The Omani diesel 80 has an FT in it and I no matter how hard I punch it (weak clutch allowing; @cruisermatt just took it in for a HD clutch and a new steering box) I can not get the temp gauge to go over about 1/5 from the bottom and the EGT stays nice and cool.
The FT and T seem to be very cool running.
By the way the FT runs cooler than the T from my experience. Not much. And they all can use an intercooler. I’ve seen exhaust manifolds cracked on engines that I got.