Tweet
how fast do you want to go i run mine with a 440/3 prop fastest its gone is 47 and the prop isn't even balanced it runs 3 or 4 min full thottle and i get two runs out of the one 4s 4800 mah i just bought a m445 from steve sharpen and balanced im gonna see how fast i can get it to go with the m445 but im waitng till the wind dies down its been windy the last couple of days
-
-
2008 NAMBA P-Mono & P-Offshore Nat'l 2-Lap Record Holder; '15 P-Cat, P-Ltd Cat 2-Lap
2009/2010 NAMBA P-Sport Hydro Nat'l 2-Lap Record Holder, '13 SCSTA P-Ltd Cat High Points
'11 NAMBA [P-Ltd] : Mono, Offshore, OPC, Sport Hydro; '06 LSO, '12,'13,'14 P Ltd Cat /MonoComment
-
Douggies right. The stock cable/bushing interface is pretty loose to begin with & mine wore the bushing after @ 15 runs. And my props are well balanced. Replaced with Octura .150 cable { stronger & way less windup} and the Speedmaster STRUT bushing [ not the STINGER bushing]. Had to shorten it and slim it down some. Available here at OSE. Way less power robbing vibrations
Cool Runnings, Bro2008 NAMBA P-Mono & P-Offshore Nat'l 2-Lap Record Holder; '15 P-Cat, P-Ltd Cat 2-Lap
2009/2010 NAMBA P-Sport Hydro Nat'l 2-Lap Record Holder, '13 SCSTA P-Ltd Cat High Points
'11 NAMBA [P-Ltd] : Mono, Offshore, OPC, Sport Hydro; '06 LSO, '12,'13,'14 P Ltd Cat /MonoComment
-
I found that my strut bushing was binding on the stock stub shaft badlly too.Comment
-
I have also observed that the original cable drive system is not of high quality. But to be fair this is a RTR boat and you get what you pay for.
Grrim, after all is said and done ...BRAVO ... to your design.
DouggieComment
-
I've been waiting on some one to get upgraded cables in stock...such as...OSE Upgraded AquaCraft UL-1 Cable. Any idea when this is going to happen or do I need to just forget it and upgrade to the Octura?
Guess I need to check my strut bushing too! It has plenty of runs on it....probably around 50 or so. What exactly do I look for here?Comment
-
i was going to run 10s in mine with a tweaked prop but then figured that 160MPH maybe a little quick. will just go with 8s
returning to boats after a big break
Comment
-
[QUOTE=yudruln8;75159]the m445 i bought from steve is sharpend and balanced[/QUOTE
You ran your drivetrain as you stated with a prop that was not balanced. You may have damaged the motor and all other drive components.
DouggieComment
-
Use an Octura, it's likely what the upgraded UL-1 is, although you'll need to cut it to the proper length.
Wiggle the prop up & down & see how loose it wiggles. The tighter the better without binding. A few SHORT blips on the bench should tell the tale; if it buzzes loudly you may want to re-bush. The fit & clearance of the Octura shaft & Aeromarine strut bushing is just perfect in my experience. A well balanced prop makes a big difference as well.2008 NAMBA P-Mono & P-Offshore Nat'l 2-Lap Record Holder; '15 P-Cat, P-Ltd Cat 2-Lap
2009/2010 NAMBA P-Sport Hydro Nat'l 2-Lap Record Holder, '13 SCSTA P-Ltd Cat High Points
'11 NAMBA [P-Ltd] : Mono, Offshore, OPC, Sport Hydro; '06 LSO, '12,'13,'14 P Ltd Cat /MonoComment
-
2008 NAMBA P-Mono & P-Offshore Nat'l 2-Lap Record Holder; '15 P-Cat, P-Ltd Cat 2-Lap
2009/2010 NAMBA P-Sport Hydro Nat'l 2-Lap Record Holder, '13 SCSTA P-Ltd Cat High Points
'11 NAMBA [P-Ltd] : Mono, Offshore, OPC, Sport Hydro; '06 LSO, '12,'13,'14 P Ltd Cat /MonoComment
-
Crash, I would look for any "over abundance" of slop at the prop end of the strut and strut bushing. There is no hard fast rule that the bushing is wore out.
Too tight of a fit and you’ll be binding the drive line. This will decrease RPM, speed, etc... Too loose and the vibration will start to "oval" out the bushing surface.
With all of that being said, a properly lubricated flex shaft (including stub), strut bushing, and B/S propeller this system should last for a LONG time. You mentioned 50 runs. I have no reason to believe anything needs replacing, as long as everything has been properly lubricated.Comment
-
Thanks guys...I pulled the bushing last night and it does have a little side to side slop and appears to be slightly out of round. I keep my drive shaft well lubed. Do I need to pull the bushing each time and lube the outside of it too? With the holes in it, I would think it already gets it's fair share. I probably will need a new bushing real soon...but I hate to place these 1 part orders where the shipping cost more than the part.
Ha...the shaft is out of stock....what's new!Comment
-
Again,
Are we talking about 1/32" or 1/8" movement???? I would expect 1/32" maybe 1/16"
This is my rule of thumb. I lube before race day. Our race days include 3 heats. A lot depends on the viscosity of the lube you’re using. I have seen some use ATF (Automatic Transmission Fluid). That stuff is pretty runny. I would be re-applying that lube after every run. People like to use that because it is "lighter". The theory is its less resistance on the drive.
Now I use something that is thicker http://www.lubriplate.com/products/auto-and-marine.html But, I can run 3-4 times before I reapply.
Don't get me wrong, there are many many products that will work fine. Just make sure you use it. (I am saying this for everyone’s benefit not directly at Crash)
Check out this website http://woodrcboatproducts.com/ Steve Wood makes an oil reservoir that attaches to your stuffing tube that automatically oils the shaft. Different strokes for different folks.
I will come down to a maintenance thing. If it’s done on a regular basis then you should be fine.Comment
Comment