Frog speed gearing on Monster Beetle!

[akemag]

Now this sounds like a good idea (given the tranny holds up)

Has it been done before? Dont know what ratios you can get from the frog gears, but i guess one of them should be speed-ish.

In light of the Frog rerelease they should be alot easier to score.

The idea just popped up, and wanted to share it and hear if it has been tried.

[DJTheo]

Imho the MB isnt really geared slow and with the Frog ratios it would be massively overgeared with those huge tires. Today its much easier to get a high rpm motor instead, if you want mad speed.

Cheers

[akemag]

Ok, i was thinking that hi torque motor like a SuperStock RZ could do it. But maybee higher RPM is a better way to go as you say.

[jimbo858]

what's the difference in gear ratio's anyways? I always thought that the internal gears for those trannies were the same and that just the motor pinion was different?

[mymonsterbeetleisbroken]

quote:Originally posted by jimbo858

what's the difference in gear ratio's anyways? I always thought that the internal gears for those trannies were the same and that just the motor pinion was different?

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i know monster beetle gears have "blackfoot" on them, not frog, so they could be different but i'm not 100% sure on that.

what i am sure of is that the "overall" ratio of the drive is different, due to the monster beetles wheels, which have a much larger diameter than the frogs rear wheels. thats why the MB has a 10 tooth pinion, to compensate for the larger wheels without loosing out on acelleration.

[T.C~Tamiya]

Yup, they are different gears to the Frog, I could count the teeth if anybody's interested.

And... If anybody wants a new Monster Beetle gear set, I've got one for sale.

[DJTheo]

Also Frog had 3 different spur gears for 3 different pinions, while only one existed for the MB.

Better stay with the stock MB gearing, should be as fast as it makes sense on such a car with a RZ.

Cheers

[jims hobby shop]

you could also find a vintage adjustable motor mount for the blackfoot style gearbox and play with pinion's.

i know jg mfg. made 1 and sure of other's .

jim

[akemag]

Would be nice to have one of those ajustable mounts.

Wonder why Tamiya didnt make any themself?

[europro975]

Also Robinson Racing made one

I have one for sale in my ebay store

http://stores.ebay.co.uk/Tonys-RC-Deals_Ro...1QQftidZ2QQtZkm

Antony

[kingeddie]

i have a gearbox that looks the same as monster beetle but is fixed axle not diff, anyone tried this in a MB to overcome common diff problem?

[akemag]

Thanks for the tip europro975, but im strapped for cash right now. I´ll be doing a resto of the tranny later this year, i´ll take a look if you still got it then.

Kingeddie, think it´s a Subaru Brat gearbox you got. I had one when they came out, and it didnt have a diff.