The Voracity tuning thread

[paulfromtulsa]

LISTEN UP GUYS, I want to point something out. I've noticed some flex failures (mine hasn't yet) and I wanted to give you guys a piece of advice. Ose sells a upgraded flex cable. Highly recommended it if you plan on using more prop than the stock prop and/or you plan on running it on 6s all the time like a madman....even with the stock prop it would be good insurance if your running 6s a lot. These flexes look to me like they are good quality but you know how things are sometimes, if it's human made, it can fail.

Yes I have had 2 stock flex shaft fail. My ose one is still going strong. I have about 20 packs ran through the ose on so far!

[kfxguy]

Wondering if anyone has one fail with just running the stock prop only......

[shua]

I'm still running stock flex and I am testing larger, more aggressive props.

[paulfromtulsa]

Wondering if anyone has one fail with just running the stock prop only......

Yes mine did fail on the stock prop

[arrover]

To the guys that have had a flex fail, has the nose cone come off of your strut also? I'm wondering if the flex is rubbing on the nose cone, causing it to come off and also weaken the flex. That is what I think happened on my boat.

[Banzee]

After 10 runs , my flex look like that ! I got a OSE flex , no more problem .

[lucdesorel]

well, i have a spartan and ran it in 4 cell with a 3 blade all summer long, and my lipo are in super form.. no heat from esc and motor.. but i know that if you run it in 6 cell, your right.. i may have a part of the answer to my question, but please, take the time to read what him writting please... you make me look like him here to show off, and him not... i just want to know what are your experience and what you think about the setup him going to put on, or a suggestion you could give me... i want to run 4 cell setup, but with a motor that i have... simple...

[lucdesorel]

my friend flex did broke after 6 run with stock flex... and he had the be replace his hull because he crack in the back on the first run....

[arrover]

After 10 runs , my flex look like that ! I got a OSE flex , no more problem .

The damaged area of your flex is around the spot where the stuffing tube and nose cone of the strut meet. Again, makes me think the flexes are rubbing on the nose cone or end of the stuffing tube, causing the damage. This might also depend on the strut height. Edit: To be clear, this is where my HD flex broke and I lost the rear of the flex and a prop. My theory is that it's not the flexes fault. They fail because they are rubbing.

[arrover]

well, i have a spartan and ran it in 4 cell with a 3 blade all summer long, and my lipo are in super form.. no heat from esc and motor.. but i know that if you run it in 6 cell, your right.. i may have a part of the answer to my question, but please, take the time to read what him writting please... you make me look like him here to show off, and him not... i just want to know what are your experience and what you think about the setup him going to put on, or a suggestion you could give me... i want to run 4 cell setup, but with a motor that i have... simple...

I think you're going to have to try your setup and test it out because no one here has run a setup like a Spartan motor in a Voracity. Personally I would go with a higher amp ESC. Nothing against the new OSE ESC, just that you might need the extra amps at some point. I'm a little confused with the prop that you are describing because in one post you said it was a 44mm and another you said 46mm. Regardless, a three blade with a total pitch of 79mm (3.1") is a pretty darn aggressive prop. I would start with something smaller and work up to that prop if temps allow it. Get your boat set up and come back and report to us how it runs. Also, please tell us about this crack in the hull. Where is the crack? Did he hit anything?

[arrover]

I had a small amount of time to run an Octura x457 this morning. 66.6mph and 49.5 on 4S. The water was flat so there is probably a little more in this prop. Lots of torque roll if you get on it hard. This prop did cause some chine walking although it wasn't enough to make me get off of 100% throttle. I think slightly rougher water would probably have helped it have less chine walk.

[Banzee]

The damaged area of your flex is around the spot where the stuffing tube and nose cone of the strut meet. Again, makes me think the flexes are rubbing on the nose cone or end of the stuffing tube, causing the damage. This might also depend on the strut height. Edit: To be clear, this is where my HD flex broke and I lost the rear of the flex and a prop. My theory is that it's not the flexes fault. They fail because they are rubbing.

Maybe , i put the strut a bit too high and it rub . You might be right about it is not the flex but the setup ! After putting the new one , got no more issue

[Banzee]

I had a small amount of time to run an Octura x457 this morning. 66.6mph and 49.5 on 4S. The water was flat so there is probably a little more in this prop. Lots of torque roll if you get on it hard. This prop did cause some chine walking although it wasn't enough to make me get off of 100% throttle. I think slightly rougher water would probably have helped it have less chine walk.

[ATTACH=CONFIG]138976[/ATTACH] [ATTACH=CONFIG]138977[/ATTACH]

I can't see the attachment !! That's a very big prop for the boat , for sure you can't snap the throttle or the boat will roll almost over !! How did your strut and trim tab are set ?

[arrover]

Your strut might not be to high to make the boat run well. I think it could be that the stuffing tubes might be slightly to low. I bent/flexed my stuffing tube up JUST A TINY BIT. Don't bend it much. It seems pretty stout so it takes a little force. I measure my strut height by the amount of strut that sticks up above the strut bracket that is attached to the hull. I measure it with a digital caliper. I don't have my numbers in front of me at work but I believe the front of the strut is 1.7mm above the bracket and the rear is 1.9mm above. When my HD flex broke, I didn't have any issues with it previously either. Always greased before runs so I would have noticed a problem. Again, I don't think there is anything wrong with the HD flexes. I haven't had any problems since I slightly bent my stuffing tube up and my strut nose cone quit coming off. My tabs are level with the bottom. Batteries as far back as possible.

I don't know why those attachments didn't post normally. They still work if you click on them. Yes very big prop. Not my fastest so far.

[lucdesorel]

for ARROVER, you use a X457, so thats a 2 blade at 57mm and 79.8 pitch total... my 44mm is 61.6 pitch at 3 blade and the other blade are 46mm 3 blade at 64.4 pitch, 46 mm 3 blade at 82.8, and a 47mm 3 blade at 79.9. with the 44mm on my spartan i run it always on 4 cell.. the esc is a 80 amp... and it ran super. so with a 150 amp esc, its almost double amp... this is all the info i have and that i could give you... does prop are bought from a australien shop and are in aluminium high grade and quality.. ready to use... i wont link the site here... for good reason. with the stock esc and motor in the voracity, the esc is 120 amp and its take it all very good, so with the 150 amp and my motor that was connect to a 80 amp.. well i think its gonna be good... so with all that info, what do you think? him gonna go from the small prop and mesure with a gps all prop and i also have a temp probe on the boat... so... and for the crack, my friend send picture to horizon, and he have a new hull... there was a big problem with his... very cheap... the rear was so weak, my spartan was way stronger ....