Bravo derivative to handle 750HP
04-03-2013, 02:32 AM
#31
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too bad someone just want cut some bravo gears out of a stronger metal. what would happen if a person could buy gears for their imco scx upper and sc lower with gears made from Titanium, inconel or even Tungsten carbide? i know they would be very pricey but strong as heck, the last very$. there are many other very strong metals that would fit the bill. i would pay 3 times (or more) $ for hard gears! if the gears are the major weak point, build them stronger. maybe im just missing something and should buy the scx lower thats shaped like a sperm whales head! someone please set me straight
What you are missing is that XR gearsets made of titanium, inconnel, unobtanium etc, are like unicorns, atlantis, and girlfriends that actually earn money.
They dont exist.
You can cryo and rem polish but it is what it is.
It takes an unbelievable amount of money to make gear-sets or you'd see them ripped off a lot more.
Uncle Dave
Last edited by Uncle Dave; 04-03-2013 at 02:37 AM.
04-03-2013, 03:18 AM
#32
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Great idea....
What you are missing is that XR gearsets made of titanium, inconnel, unobtanium etc, are like unicorns, atlantis, and girlfriends that actually earn money.
They dont exist.
You can cryo and rem polish but it is what it is.
It takes an unbelievable amount of money to make gear-sets or you'd see them ripped off a lot more.
Uncle Dave
What you are missing is that XR gearsets made of titanium, inconnel, unobtanium etc, are like unicorns, atlantis, and girlfriends that actually earn money.
They dont exist.
You can cryo and rem polish but it is what it is.
It takes an unbelievable amount of money to make gear-sets or you'd see them ripped off a lot more.
Uncle Dave
i have done some research on the net (which is usually BS) about some companys that can copy gears in different metals and will follow up on it. but im not having a good gut feeling on it. we shall see. thx
04-03-2013, 05:08 AM
#33
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smitty on here is working on stronger XR gears and hopes to have them out by the end of june at the earliest. I hope so because my Imco Sc's could use stronger upper and lower gears, or its Arneson or SCX for me also.
04-03-2013, 06:09 PM
#34
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04-04-2013, 09:20 AM
#35
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(not directed at you Johnny)
This is my favorite quote that shows up in all "bravo" threads.
...if you bought a corvette, would you baby it?
...if you bought a ferrari, would you baby it?
Every time I get in my boat I slap the sticks forward and hope for the best. The last time out in 3 footers I never overrevved the engines once, not even a blip in RPM and I still broke a tooth in flat water when I cam back in the intracoastal. There is more to it than babying the throttles, the gears just plain suck. (mine were even cryoed)
This is my favorite quote that shows up in all "bravo" threads.
...if you bought a corvette, would you baby it?
...if you bought a ferrari, would you baby it?
Every time I get in my boat I slap the sticks forward and hope for the best. The last time out in 3 footers I never overrevved the engines once, not even a blip in RPM and I still broke a tooth in flat water when I cam back in the intracoastal. There is more to it than babying the throttles, the gears just plain suck. (mine were even cryoed)
04-04-2013, 11:34 AM
#36
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There is some great CNC technology that can be used to cut new gears, the problem is we need a good set of data to work from. I checked on using some of the latest surface scanning technology but it doesn't provide a smooth surface, it's stepped. So creating a working model is a lot of work. If someone can get me a set of good gears, I can get them scanned if someone wants to spend hours smoothing all the surfaces of each tooth. I will be glad to help in any way I can I have some money I would be willing to spend on this. I have a number of gear manufacturers in the Southeast Michigan area that might be able to do this reasonably. I've talked to some guys who know their metallurgy and they recommend billet S7 with a Nitride treatment. I am open to any ideas anyone has at this point
04-04-2013, 12:16 PM
#37
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I've never chipped a tooth, but have broke a bunch of floors on stock bravos, so any improvement there would be great. I'm the same I drive my boat like its a race boat throttle hard but I pick my moments and keep a spare drive ready at all times just incase I need it
04-04-2013, 02:16 PM
#38
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too bad someone just want cut some bravo gears out of a stronger metal. what would happen if a person could buy gears for their imco scx upper and sc lower with gears made from Titanium, inconel or even Tungsten carbide? i know they would be very pricey but strong as heck, the last very$. there are many other very strong metals that would fit the bill. i would pay 3 times (or more) $ for hard gears! if the gears are the major weak point, build them stronger. maybe im just missing something and should buy the scx lower thats shaped like a sperm whales head! someone please set me straight
Cheers,
Waid
04-04-2013, 11:57 PM
#39
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None of those will work well for a gear set. S7 tool steel would be a good place to start. I also don't believe it would be hard to make a set. With the latest CNC mill turns it would be easy the make, however getting a good working 3D model to program from is the hard part.
Cheers,
Waid
Cheers,
Waid
