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Old 2006.05.16, 08:44 AM   #1
fastskater21
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Join Date: Apr 2006
Location: Waterford Mich.
Posts: 34
Faster, Longer running, Mini-Z Formula Boats

Hello, This shows my surface drive modification to the Formula boats series.
It involves removing the power robbing strut propshaft assm and putting
the prop directly on the output shaft. This gives the prop more
RPM closer to the surface and allows the motor to run at a more
effient pace. I then made a styrene rudder that is much thinner than
the stock piece. I have noticed some cavitation at times, but man
does it run alot longer and is faster than the stock setup.
it also has the Aquaspeed motor and prop sets that I am still experimenting
with. I still have some hull tuning to do as well. My goal is to make these
boat run faster, longer and better without anyone having to invest outside
the orignal parts variety to keep cost and complexity down. I will post any
new funtional developments as I try them out and they work to my
desired levels.
Attached Images
File Type: jpg side new.jpg (298.0 KB, 425 views)
File Type: jpg rear new.jpg (285.9 KB, 350 views)
File Type: jpg side new2.jpg (303.3 KB, 329 views)
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Old 2006.05.16, 09:00 PM   #2
herman
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Join Date: Nov 2001
Location: makati, philippines
Posts: 8,702
cool mods...

can you post pics on the old parts (stock) vs. the modified? or before and after shots?
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Old 2006.09.04, 05:11 PM   #3
tmmulloy
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Join Date: Sep 2006
Posts: 1
Mini Boat

Hello , I noticed your posts on the mini For. boat and I wanted to ask you if you think there is a hop up battery ? I wondered if a LIPO or LION battery could be used if so what kind . I also wanted to ask you where a improved propeller could be bought. Thank You Tim
email Tmmulloy2002@yahoo.com

Quote:
Originally Posted by fastskater21
Hello, This shows my surface drive modification to the Formula boats series.
It involves removing the power robbing strut propshaft assm and putting
the prop directly on the output shaft. This gives the prop more
RPM closer to the surface and allows the motor to run at a more
effient pace. I then made a styrene rudder that is much thinner than
the stock piece. I have noticed some cavitation at times, but man
does it run alot longer and is faster than the stock setup.
it also has the Aquaspeed motor and prop sets that I am still experimenting
with. I still have some hull tuning to do as well. My goal is to make these
boat run faster, longer and better without anyone having to invest outside
the orignal parts variety to keep cost and complexity down. I will post any
new funtional developments as I try them out and they work to my
desired levels.
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Old 2007.11.18, 10:50 AM   #4
Yeap
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Join Date: Jul 2003
Posts: 46
Quote:
Originally Posted by fastskater21
Hello, This shows my surface drive modification to the Formula boats series.
It involves removing the power robbing strut propshaft assm and putting
the prop directly on the output shaft. This gives the prop more
RPM closer to the surface and allows the motor to run at a more
effient pace. I then made a styrene rudder that is much thinner than
the stock piece. I have noticed some cavitation at times, but man
does it run alot longer and is faster than the stock setup.
it also has the Aquaspeed motor and prop sets that I am still experimenting
with. I still have some hull tuning to do as well. My goal is to make these
boat run faster, longer and better without anyone having to invest outside
the orignal parts variety to keep cost and complexity down. I will post any
new funtional developments as I try them out and they work to my
desired levels.
hi there..

i've tried the suggested modification. the efficiency of the motor increases, run time increases. but i can't seemed to have the boat going faster that the stock setup. as a matter of fact it's actually slower
any possible reason for that?
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Old 2007.11.23, 04:27 PM   #5
mikez
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cool mod
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Old 2007.11.28, 02:12 PM   #6
marc
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Join Date: Oct 2003
Location: Colorado, USA!
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The boats are nice, but only good if you live near a pond.
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