Those temps are fine.


Mine runs 770-800 oC on boost.

650-750 on cruise, and 450 on idle. Egt sensor in Downpipe about 100mm from turbo.



but mine is running a modified xr2 timing setup, as a turbo carb, ignitiion timing is very reatarded on cruise, and below 4000 rpm on boost, and not as advance'd as it could be on idle. So running alot hotter than it could be if advanced.