FSR ? FSR ! you mean t6he FSR . Lot of oiticals on Designs using them have two 1/4 bore outlets or ducts too the undercase area .
State the rpms on ground go up , after a lap or two the rpms drop ( with cooling ducts ) . So we thought we'd see what 's going ,
here .
Art for Arts sake . The inners about 3/4 to 1 in , with a 2 mm gap . peripheral intake .
The lower temp. should give better carge density , thus more Power . Tecnilogically .
A way to checkitout , if your spinner rings only say 1/4 " chord , would be to leave the spinner off for a few flights .
other FSR trick reputedly is to set tank down 1/8 " for even speed through manouvres .
unessesary in siberia in winter , but might help , in death valley in summertime .