I was beginning to think the Renesis swap was a mistake. Up until
now, the engine felt weak compared to the 4 port 2nd gen I've been flying
although I haven't really had a chance to test it's max output due to
cooling concerns.
Just got back from first flight test after making several
changes. Yes, I know that it is best to change one thing at a time so
the results can be accurately correlated but that must be balanced against
the time available. It takes me an average of 5 hours to do each
preparation/flight test/data evaluation and this does not include the
time required to make the changes.
Changes
Main change was: Replaced NACA scoop / SCAT duct
air inlet with ram-air inlet.
Other changes included adding an additional coolant temp
sensor before coolant passes exhaust ports, cleaner cooling air exit
from right rad and oil cooler (result of removing the SCAT duct) and
external stiffener on water pump inlet hose (to prevent collapse in the
event of negative pressure).
Allo Tracy. I have internal stiffener on my 1986
13B water pump inlet hose and this is the first time I hear about
external stiffener. I would like to try that. Where can I get it? Please.
Yvon.