The DEX410 has shown me the light.... race quality (well machined, shimmed) sealable metal gear diffs will put down ALL the power your brushless can dish out, not most/some of it as with ball diffs FACT. and they are set (with various grade oils) and forget.. lovely
I intend to (with some fettling ) drop a mini inferno 09 metal geared diff into a Vendetta soon ...
__________________
Schumacher CAT SWB, XLS, ProCAT, SX Lipo:
1/18th:Duratrax; Vendetta Buggy, ST, Rally~LRP;S18 TC FT
Team Durango DEX410
Butt monkey if you do succeed with fitting a geared diff with steel gears into the Detta then i will be very interested in your mod.
I am going to try speaking to a company about getting some steel gears machined for the stock Detta Geared diff but i am worried about cost.
I'm not sure about the standard diffs ability to hold the diff oil/grease but i have been told that it stays in there quite well considering they are not sealed.
Some people use there ball diffs as a slipper clutch.
If that were so they've been doing it wrong.
Quote:
Originally Posted by leeleefocus
It's a shame you don't know about the benefits of gear diffs they are superior in my opinion.
Looks like you still have a little to learn about the dynamics of a drive train.
LOL. You are welcome to your opinion, but it seems as if you have a little to learn about the history of RC cars. We had gear-diffs long before ball diffs were ever a gleam in someone's eye.
You might view me as an idiot, but I know enough about "dynamics of a drivetrain" to know for a fact that all that extra rotating weight would slow a car down along with putting extra drain on the electrics.
Quote:
Originally Posted by leeleefocus
If you want to keep striiping your truck down when there are potentially better ways of doing things then you are a fool.
As you are a fool, IMHO, if you think a gear-diff is a set-it and forget-it item.
fyi - thetoys.com has been making a metal gear diff for the vendetta for over a year now, and they've yet to proven themselves a worthy option for the racers that actually maintain their cars
I'm running ball diffs with no problems, 10.5T Mongoose racing for over 1 and a half seasons now. Just tighten them up every so often and they work brilliantly. I'm using the LRP competition ball diffs.
I'm not sure about the standard diffs ability to hold the diff oil/grease but i have been told that it stays in there quite well considering they are not sealed.
So you're saying you don't even have any personal experience with the vehicles?
In the future, perhaps it more appropriate if you were to contact the manufacturer directly if you have an "idea" instead of chastising them openly on discussion forums which seems terribly inappropriate and totally un-called for.
Butt monkey if you do succeed with fitting a geared diff with steel gears into the Detta then i will be very interested in your mod.
I am going to try speaking to a company about getting some steel gears machined for the stock Detta Geared diff but i am worried about cost.
I'm not sure about the standard diffs ability to hold the diff oil/grease but i have been told that it stays in there quite well considering they are not sealed.
Hey Lee,
...thanks for the interest mate,...I'll post up the out come in a month or so.. watch this space.....
__________________
Schumacher CAT SWB, XLS, ProCAT, SX Lipo:
1/18th:Duratrax; Vendetta Buggy, ST, Rally~LRP;S18 TC FT
Team Durango DEX410
You don't seem to be able to understand alot really.
The toyz do not do internal steel gears(spider gears) for the geared diff they only do the bevel gears for the ball diff.
The gear diffs of old were fragile and basically only designed for the modest power of old battery technology and brushed motors. They were also limited by cost of machining and cost of materials which brought about the ball diff. Now that it is possible to produce a geared diff with the correct materials and design at a cost that is feasable then i want them.(The use of cad has transformed the design of RC in every aspect). If you researched correctly and really did understand about the dynamics then you could understand how the geared diff is superior but i am not willing to give you a lesson on the reasons. If you are to ignorant to want to believe that there is a better solution to the ball diff then carry on but if everyone thought like you the hobby would stand still. You are correct on one thing and that is the ball diff has less rotating mass but i believe that the other positives out way this by a large margin.
If you want an example of how a well designed geared diff works then look at the DEX 410. Like buttmonkey said they really are a work of art and devastatingly effective and strong.
I own a factory shark along with a blaze that is modified to almost the same spec. But i can only use the ball diffs because the geared diffs are unable to handle the power.
I'm getting tired of correcting you now so you can say what you want and make as many assumptions as you want(you do seem to make alot of assumptions). I've wasted enough time replying to you now and i'm not going to waste anymore.
I hope Duratrax don't sue me as i seem to have chastised them publicly.
Anyway i can't wait to get the longer chassis and fit all the ST suspension. Should make an already stable truck even better. I just hope that it doesn't hurt the tight turns to much but i don't think it will.
Last edited by leeleefocus; 11-04-2009 at 04:35 AM.
FYI - all the problems with metal gear diffs blowing up and being non-adjustable, at least in part, is the reason someone invented the ball diff. Proper maintenance is what racing, and RC, is all about - if you want to keep your stuff running. Maybe an RC-shopping cart is more your speed.
I guess that's why all those competition level buggies and MTs have planetary gear diffs that are tunable with oils.
Don't get all snippy with people "dude"......you are the one that inserted your foot into your mouth before anyone else called you out. It's obvious that you are unfamiliar with the topic at hand so you ought to stay out of it rather then spouting inconsistent info or getting abusive.
I guess that's why all those competition level buggies and MTs have planetary gear diffs that are tunable with oils.
Don't get all snippy with people "dude"......you are the one that inserted your foot into your mouth before anyone else called you out. It's obvious that you are unfamiliar with the topic at hand so you ought to stay out of it rather then spouting inconsistent info or getting abusive.
I guess they have to be maintained too?
maybe you should check again, "Vinny," and get your own facts straight before getting all snippy and yippy
I'm sure I could do without the abuse, as well as the manufacturer bashing that seemed inappropriate in this thread.
maybe you should check again, "Vinny," and get your own facts straight before getting all snippy and yippy
I'm sure I could do without the abuse, as well as the manufacturer bashing that seemed inappropriate in this thread
Leelee just stated that he would like some gear diff options for the Vendetta. Your response was to basically tell him he doesn't know what he's doing and that gear diffs are antequated. Both are untrue.
You also responded to his desire for metal gears with the fact that thetoyz carries metal gears ("which are yet to be tested") according to you.
1) these are a ring and pinion gear for the ball diff, not plantary gears
2) they have been tested extensively by a few here with good reports
If you're so experienced, what races have you won? Mini Nationals? Snowbirds? ECCs?
Basically your whole argument is based on the fact that you think every car nowadays should sport a ball diff as they are far superior to a gear diff which is just not true on so many levels. Now go check some facts of your own and figure out how your head got so far up there......
Your response was to basically tell him he doesn't know what he's doing and that gear diffs are antequated. Both are untrue.
I never said such a thing.
Quote:
Originally Posted by Dieselpower
You also responded to his desire for metal gears with the fact that thetoyz carries metal gears ("which are yet to be tested") according to you.
Again, I never said such a thing, though I did run with the idea that "racers" weren't using them. Ergo, proving my point.
Quote:
Originally Posted by Dieselpower
If you're so experienced, what races have you won? Mini Nationals? Snowbirds? ECCs?
Where's your wins resume, vinny?
Just 'cause you "attended" doesn't count.
Quote:
Originally Posted by Dieselpower
Basically your whole argument is based on the fact that you think every car nowadays should sport a ball diff as they are far superior to a gear diff which is just not true on so many levels. Now go check some facts of your own and figure out how your head got so far up there......
AGAIN, I never said any such thing. Before you go jumping down my neck you should be back and read the thread again.....remove your head first, of course.
After you check back in, after checking the facts and your RC history, you'll find that my point was that "gear diffs have been used on RCs much longer than ball diffs, but that ball diffs took over in the smaller scales because of their adjustability and durability" PERIOD!
Your obnoxiousness is particularly offending this morning. No coffee?
Chill dude!
Hey look! rocket-motorsports aka rocketrob40 aka rocket-mtrsprts aka oldschoolracer aka RERacing aka szakcajaru aka Rob Engle aka many other user names is back on rctech flaming people again!
justanotherdude? More like just another alias for the message board cancer known as Rob Engle....
Maybe an RC-shopping cart is more your speed. 
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