One last thing.
I noticed that the outer exaust cone changed color.
It is something like blue with violet.
The turbine wheel is very clean though.
Is this normal?
I also changed to a 8 cell GP3300 mah NiMh (good to 30 Amps tested)
and i lowered the glow plug power to compensate for the increased voltage.
That should spool it up like crazy...
Sorry for asking too many questions but believe me you know more than the local guys.
Chris