Saito 72 Specs
(http://horizon.hobbyshopnow.com/prod...ptab=tech#tabs)
-------------------
Displacement:
11.8 cc
Weight w/ muffler:
470g (16.58 oz)
RPM:
9,800 - 10,200
HP:
1.2

OS 46FX Specs
(http://www.osengines.com/engines/fx.html)
-------------------
Displacement:
0.455
Weight: (not specified as with or w/o muffler)
13.2 oz
RPM:
2,000-17,000
HP:
1.59 @ 16,000


I only submitt these details to raise the issue of horse-power... If the 46FX has roughly 4/10's (almost half a HP more) without the pre-tuned pipe, is the Saito 72 faster after all?

-Tink