enyaengine

Does anyone know about an OS 46 "pumper" engine, apparently that pumps fuel into the carb rather than just letting it suck the fuel? If so does anyone know how much they retail at or any details on them? I can't find any info anywhere on the net!

Big feet

Have you considered using an unpumped engine but adding a perry pump or something simular?

s. wallace

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OS sold a pumped version of the 46SF in the late 80's thru early 90's. Unlike their 60 size pumped pattern engines the 46 used a remote pump system, so in effect a Perry pump with any 46 2 cycle engine would give you roughly the same thing.

P-40 DRIVER

That .46 SF pump motor had a different carb and a remote pump, you could still buy the pump and carb from tower untill recently. It worked extremely well. A .46 AX and a Cline regulater would do almost the same thing.

Wild Foamy

Ho-bao make a Hyper .21 8 port buggy engine with whats called a boost chamber, i think it basically just dumps the fuel straight into the crank, however ive never tried on of these (cant use a starterbox with MT's)

ive seen some pumped OS four strokes around... time to get googling methinks :P

gunfighterII

Here's a couple pictures of my O.S. 46SF ABC-P. A very nice engine with the pipe. This motor probably has over 1,000 flights with only a bearing change 2 years ago. I bought this engine in 1991 and I think it retailed for $159.99.