Hydra drive for RC-10 any good?

[Shodog]

I was able to pick up a hydra drive kit for the RC-10. It is basically replaces the gear spur and pinion with a belt drive. The kit consists of three belts, three spurs and about 5 or 6 pinion gears. I know these were somewhat popular back in the day but were they any good.

Jim

[Gilby]

I remember seeing those, what did you pay if you don't mind?

[vintagejack]

Personally I love belt drive and it should be more efficient than gears, however with fine pitch spur gears the difference is small if any, I saw a few of these used in racing, the car sure sounded much smoother than normal.. wisper quiet.. but changing ratios was more of a hassle for obvious reasons, so this allied to cost restricted the popularity of this idea..

[quincey]

quote:

Originally posted by Shodog

I was able to pick up a hydra drive kit for the RC-10. It is basically replaces the gear spur and pinion with a belt drive. The kit consists of three belts, three spurs and about 5 or 6 pinion gears. I know these were somewhat popular back in the day but were they any good.

Jim

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id="quote">id="quote">its a hyper drive not a hydra drive the hydra was used in the losi xx

[Shodog]

Quincey, your right it is called a Hyper Drive. Here are some pics of the kit.

I have already installed a spur belt and pinion on my Graphite RC-10. I will try to take some pics of it installed. since it comes with three spurs I am probably going to put a set on my RC-10 CE also.

I can't believe anyone would pay $89.95 for this kit. That's probably the reason there were not very popular.

Jim

[vintagejack]

It was expensive, however you get all the ratios you could need at the time so if you take out the cost of having to buy at leat 3 spur gears and 6 pinions for normal racing (say 50 dollars?) it does not seem quite as bad..

[vintagejack]

HOwever Old gearbox which these seem to be for has the defect of wobbly uncentered spur gears because the diff is housed in it, so I`m not sure how this set up could be adjusted to work properly considering it would be almosty impossible to get consiostent belt tension..

I love the idea though..

[Shodog]

I believe these were made for the old six gear Tranny in mind. The spur sits on a collar so the hole is suported. And since you pop the balls into it is would be no different than a standard spur gear. I took some updated photos of my RC-10 Here they are

http://www.tamiyaclub.com/showroom_model.asp?cid=6906&id=34

JKim

[El Mexican]

quote:its a hyper drive not a hydra drive the hydra was used in the losi xx

id="quote">id="quote">

I think it was used way before that, quincey, probably around the Jrx-Pro (1992?).

[Hellbilly]

My Losi XX has a Hydradrive.