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Old 05-27-2004, 10:32 AM   #1
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What car to get and it's 4am and still not an answer in site :(

Greetings from New Zealand at 4.31 am.

Ok I'm looking at getting back into RC after a 12 year break (I'm sorry my bad it wont happen again lol). And I'm finding it rather hard deciding what 10th scale onroad car to get.

The problem is that here in NZ in the stock class (which I intend to stay in) the only motor allowed is a Mabuchi 540 and the only batteries are unmatched 1500 mah NiCads.

I don't have a problem with this as such only that my problem is finding a car that can A: take stick packs (I have 7 new ones from Tower hobbies) and B: be geared high enough for this motor.

I'll give you an example of my problem, yesterday I had a look at a Tamiya TA04 Trf kit which was very nice and it took stick packs but to get a suitable final ratio between 4 and 5 to 1 I would need to have a pinion and or spur gear that are just not made.

In this particular case I tried a 105 64p spur and a 51 tooth pinion and the two couldn't get close enough to mesh. And no I'm not prepared to machine out any slots or mounts to be able to do this (on this or any other car).

So the question is I'd like suggestions on cars that can and do take stick packs AND where suitable gearing can be obtained with available spurs and pinions that can be made to mesh.

Cheers in advance.
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Old 05-27-2004, 10:37 AM   #2
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i think most of the shatf drive cars liek the tc3 and cuda nd yok sd will be able to do that iv ran a 5.0 ratio in my cuda quite easily and thats with the limeted range of 48dp, hope this helps
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Old 05-27-2004, 10:40 AM   #3
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Welcome back to RC!!
If you really want the 415, use aftermarket spurs. Use 48pitch 70 tooth or below can bring you to the ratio you want.

If you want to stick with Tamiya, ou can also get the TAO-4 TRF, there is a wide range of ratios you can use it, because the spur gear sizeis not limited unlik in the 415.

What ever kit you choose, besure that there is abundant parts support.

the tb-02 can also bring you down to the gear ratios you like and so is a TL01, but you would'nt want that.

Check out also the Yokomo CGM if you have itthere!

Peace and Happy Building your new car!!!
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Old 05-27-2004, 10:45 AM   #4
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Thanks, it was the TRf ta 04 that I looked at not the 415 and as I said even with a 51 tooth pinion it would mesh with a 105 spur so I passed on that car.

As for the CGM yeah you can get them here too but I can find no info as to what spur size they can go down to, the largest pinion in 48p I've seen is 35t which is ok if it can match up to a 66t spur on the cgm that would give me a 4.5:1 ratio.
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Old 05-27-2004, 10:47 AM   #5
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Oops that's "wouldn't mesh" damn typos. lol
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Old 05-27-2004, 10:50 AM   #6
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I agree on the TC3, it can come pretty close to 5 to 1. Another idea, which I don't have any personal expierence with, would be the corally asassin (or however you spell it). In it's one configuration you have a direct drive to the rear with a belt to the front wheels. Should be able to get some pretty low gear ratios with that.
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Old 05-27-2004, 10:58 AM   #7
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Default Re: The corally sounds like an option....

so long as this rule from the NZRCA still applies...

6.5.1 Flat plan 1/10th and 1/12th scale chassis are not allowed. Chassis
must have independent suspension to all four wheels. Each driven
wheel must have flexible joint, eg universal joint.

?
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Old 05-27-2004, 11:02 AM   #8
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Quote:
Originally posted by Mabuchi540
Thanks, it was the TRf ta 04 that I looked at not the 415 and as I said even with a 51 tooth pinion it would mesh with a 105 spur so I passed on that car.

As for the CGM yeah you can get them here too but I can find no info as to what spur size they can go down to, the largest pinion in 48p I've seen is 35t which is ok if it can match up to a 66t spur on the cgm that would give me a 4.5:1 ratio.
Sorry for that mistake, getting sleepy at 1am here,

Okay The lowest you can go with the TAO4-TRF is 4.09!
You get a 100 Tooth Spur 64pitch and a 52 tooth pinion!!!!

Kawada makes them and you can get them at rainbowten,co,jp
KAWADA,PNB-52 SUPER HARD DURALUMINIUM PINION 64P 52T
KAWADA,S64-100T SUPER TOUGH SPUR GEAR 64P 100T

BUT!!!! you may have to modifythe mounting hole of the TAO4 to accomodate the gears.
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Old 05-27-2004, 11:11 AM   #9
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Yes that's the catch altering the motor mount as i checked it out I would have to mill into the heat sink fins to get it close enough and i'm looking for a kit where such a mod isn't required.

Thanks for the info tho.
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Old 05-27-2004, 11:21 AM   #10
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to make the spurs fit you have to lengthenthe holes of the motor mount. look at the pic and the "xx" mark

pinions go all the way up to 58t 64pitch (atlas makes them)

if you want to use the Tamiya .6module as shownin the picture the lowest you can go is 5.19 with a 34t .6module pinion
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File Type: jpg spur04.jpg (142.3 KB, 73 views)
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Old 05-27-2004, 11:23 AM   #11
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Quote:
Originally posted by Mabuchi540
Yes that's the catch altering the motor mount as i checked it out I would have to mill into the heat sink fins to get it close enough and i'm looking for a kit where such a mod isn't required.

Thanks for the info tho.
okay! goodluck with whatever kit you choose.
sorry was'nt much of a help.
Peace and Happy Racing!
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Old 05-27-2004, 11:24 AM   #12
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Save yourself a lot of time.... talk to the fast guys and see what they run for cars and ask them if they had to modify their cars to get in the gears they use. They would know what works best at your track.
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Old 05-27-2004, 11:34 AM   #13
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Xray...using the 1.77 pullies will give a much wider choice....
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Old 05-27-2004, 11:35 AM   #14
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i do like the idea of the corally assassin. if ever there were a class that it's design could excel in it is this one. a big complaint from drivers was that the pinions couldn't be small enough to run mod with. i would assume that a car that could not reach a high enough final drive ratio would have no problem going excessively low. but you didn't ask for assumptions. can anyone confirm that the assassin will reach these ratios?

oh, and ottoman is dead on. ask those who have already passed that obstacle.
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Old 05-27-2004, 11:40 AM   #15
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Default Re: Hello Again

Quote:
Originally posted by lem2
Sorry for that mistake, getting sleepy at 1am here,

Okay The lowest you can go with the TAO4-TRF is 4.09!
You get a 100 Tooth Spur 64pitch and a 52 tooth pinion!!!!

Kawada makes them and you can get them at rainbowten,co,jp
KAWADA,PNB-52 SUPER HARD DURALUMINIUM PINION 64P 52T
KAWADA,S64-100T SUPER TOUGH SPUR GEAR 64P 100T

BUT!!!! you may have to modifythe mounting hole of the TAO4 to accomodate the gears.
Why not use 98T? they are quite common for 1/12.....
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