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Post  Godsey3.0 Wed Feb 22, 2012 12:29 pm

I was sitting at my desk today looking at my Space Bug Jr. I just happened to gaze at it's version of a pick up tube and wondered what would happen if it were to be bored out. Does the size of the pick up tube change performance?
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Post  microflitedude Wed Feb 22, 2012 1:52 pm

Good question - I wonder if it would have the same effects of enlarging the venturi.....
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Post  Godsey3.0 Wed Feb 22, 2012 1:58 pm

I imagine like everything else there is an ideal range.
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Post  SuperDave Wed Feb 22, 2012 2:17 pm

I'd just trust LeRoy's judgement and leave the engine alone. There would be little to be gained by "messing" with it.
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Post  Godsey3.0 Wed Feb 22, 2012 2:28 pm

I never had any intention to (As You Say) "mess" with my ONLY Space Bug Jr. If I ever get a second one (which I will someday) I will attempt to experiment with it. Why not? Just because they are old does not exempt them from being hopefully improved.
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Post  nitroairplane Wed Feb 22, 2012 2:29 pm

I believe it would reduce the suction and therefore fuel draw.
If you want more fuel to go in run it richer you will get the same effect.
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Post  Godsey3.0 Wed Feb 22, 2012 2:32 pm

That is what I thought it would be like. It was the only result I could think up.
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Post  nitroairplane Wed Feb 22, 2012 2:38 pm

You would have far more luck enlarging the venturi but on a space bug please do not!
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Post  Godsey3.0 Wed Feb 22, 2012 2:40 pm

Nah. The venturi on the Space Bug is already pretty large. I do not think it could change much.
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Post  RknRusty Wed Feb 22, 2012 3:11 pm

Got the engineering bug, do ya? A little fluid dynamics, toss in some pneumatic action, all sorts of cool angles involved,,, Good for you. Stay curious.
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Post  Godsey3.0 Wed Feb 22, 2012 3:15 pm

I have plans of being a Mechanical and a Aeronautical Engineer.
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Post  nitroairplane Wed Feb 22, 2012 3:17 pm

Godsey3.0 wrote:I have plans of being a Mechanical and a Aeronautical Engineer.

If the funding's there do it!
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Post  Godsey3.0 Wed Feb 22, 2012 3:20 pm

Ya. I am seeing scholarships out the Wazoo.
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