Tips on TT-01 Spur Gear Please
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  1. #1
    R/C Newbie unknownmember is on a distinguished road unknownmember's Avatar
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    Talking Tips on TT-01 Spur Gear Please

    Hi there,

    I've got myself a TT-01 couple months ago and been plain enjoying it but it's seen better days, well not completely. The suspension arms and steering linkage has become more loose and gearing is ruined. I don't know but when I bought the brushless system Hobbywing EZRUN 8.5T 4300Kv that very night I messed up the spur gear. I took off the spur & pinion gear cover bit at roll the car to get the gears moving and I noticed the spur gear is.. bent and the pin thing mechanism that locks the spur gear to the shaft has come off. So I put everything back together, the pin thing that locks the spur gear to the shaft also slided the circular piece on to the spur gear then re mounted the motor and same thing happened very soon after. Now the gears won't even allow the car to roll backwards, me mate told me to get the 21T pinion gear because that 19T with my motor is too much for the spur gear to handle. No idea what that means but i'm getting a new 55, 58 and 61T spur gear set and a 20, 21T pinion gear set. So I was wondering what combination do you guys recommend? The boys are just messing around with drag races for now so i'm looking for high end speed, how about a 55 spur & 21 pinion?

    Thanks

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  3. #2
    R/C God RatsacK is on a distinguished road RatsacK's Avatar
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    I'm guessing you're using the stock tub, if so, your gearing options are kinda limited. Here's the gearing chart for the TT01;


    Also, I don't really understand what you're trying to say about the spur gear. But, the little/shorter shaft that goes through the spur gear to the main shaft and rear diff housing, have you checked that the little gear inside the diff housing is still on that shaft? Apart from that, I don't really know what else it could be.
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    R/C Apprentice tdunster is on a distinguished road tdunster's Avatar
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    I have a 4300kv EZrun in my TT-01 and I have had no troubles at all running the standard gearing of 19t / 61t.


    In fact I'd say it's about right for that motor on a 2s Lipo given that I can bash it around a track flat stick for 20mins without any heat issues.

    cheers.

  5. #4
    R/C Newbie unknownmember is on a distinguished road unknownmember's Avatar
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    Sorry for the late reply, completely forgot about it.

    Ratsack - I think you actually did know what I meant about the spur gear. It's that little silver pin that sits in the shaft joint and you slide the spur gear towards it so the pin sits in the spur gear's groove that looks like a + symbol. That pin thing dislodge from the shaft and was sitting in the gear box when it all went wrong. It probably became lose when I changed the drive shaft to alluminium and didn't noticed it. Thanks alot for the gear chart by the way, been looking around for it quite some time but only ever found those web based R/C gearing calculators.

    tdunster - lol. Thanks for letting me know tho coz I really thought I had it right all along.

    But i'm getting the 3Racing graphite conversion soon and all the other bling out stuff like silver suspension arms. Will post some pics when done and hopefully I won't mess it up this time.

  6. #5
    R/C Guru fastbaja5b is on a distinguished road fastbaja5b's Avatar
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    To be honest you're better off finding a TB-02 or a TA-05 than throwing big $$ on a TT-01. Speaking from experience

    The TA-05 handles well, is built like a tank and it's a LOT more adjustable.
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  7. #6
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    zoomer will become famous soon enough zoomer's Avatar
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    hope you've got full ballbearings in your chassis

    buy a STEEL non-Tamiya pinion in the right size

    19/61 gearing is sweet for 9T ezrun

    you can gearup with bigger pinion for speedruns but motor will run hotter
    and car will be less drivable away from the dragstrip

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  8. #7
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    Quote Originally Posted by fastbaja5b View Post
    To be honest you're better off finding a TB-02 or a TA-05 than throwing big $$ on a TT-01. Speaking from experience

    The TA-05 handles well, is built like a tank and it's a LOT more adjustable.

    Bit too late, paid for the parts only just yesterday. -_-!!! But I won't be entering any comps so i'm not too phase. I did also looked at the HotBodies Cyclone TC and other high end belt kits but I know crap all about RCs so I decided to just bling out and gather knowledge around the TT-01 until i'm atleast fluent in this hobby and hopefully I'll pick it up as easy as I did with PCs...such an expensive hobby it was.... $700 for a GPU. I could of bought a sweet arse chassis and a monsterous motor.
    Last edited by unknownmember; 25-08-2010 at 01:33 AM. Reason: TYPO

  9. #8
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    Quote Originally Posted by zoomer View Post
    hope you've got full ballbearings in your chassis

    buy a STEEL non-Tamiya pinion in the right size

    19/61 gearing is sweet for 9T ezrun

    you can gearup with bigger pinion for speedruns but motor will run hotter
    and car will be less drivable away from the dragstrip

    Yep, got me a 3Racing bearing set from RCHobbies.com. Can't wait for the parts now.

  10. #9
    R/C Apprentice tdunster is on a distinguished road tdunster's Avatar
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    Quote Originally Posted by unknownmember View Post
    Quote Originally Posted by fastbaja5b View Post
    To be honest you're better off finding a TB-02 or a TA-05 than throwing big $$ on a TT-01. Speaking from experience

    The TA-05 handles well, is built like a tank and it's a LOT more adjustable.

    Bit too late, paid for the parts only just yesterday. -_-!!! But I won't be entering any comps so i'm not too phase. I did also looked at the HotBodies Cyclone TC and other high end belt kits but I know crap all about RCs so I decided to just bling out and gather knowledge around the TT-01 until i'm atleast fluent in this hobby and hopefully I'll pick it up as easy as I did with PCs...such an expensive hobby it was.... $700 for a GPU. I could of bought a sweet arse chassis and a monsterous motor.
    I started with a TT-01 and I don't regret it for a second. Sure given my time again I would have gone more upmarket. But as a learning tool it's been very good.

    The dampers / shocks on a tt-01 are the same size as on TA-05 and TB-03. So TRF shocks and the like can be bought for the tt-01 knowing that you can use them on a better vehicle later on if you wish to ever upgrade.

    And the bearings are pretty much the same.

    The rims / tires are the same

    Bodies are the same

    radio gear / servos can go from one to the other .... and so on.

    engine / esc are transferable

    A lot of what you can upgrade on a tt-01 can go into a later build.


    So it's all good

  11. #10
    R/C Novice tapz is on a distinguished road tapz's Avatar
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    I had a 5T brushless in the TT-01 using stock front & rear diffs & 19T/61T gear set....the 5T would make the diffs spin so fast the car would not go anywhere, it would be slipping internally, I think anything faster than a 6/7T for a TT-01 is overkill, unless you go carbon fibre chassis & higher gear ratio.

  12. #11
    R/C Newbie unknownmember is on a distinguished road unknownmember's Avatar
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    Thanks for all the advice and replies guys, just been really busy with work and haven't touched my TT since I backed into a wall and saying good by to the whole rear right end; hub, arms and universal -_-!!!!. But the new goodies should be here by next week and will upload some pictures when done, forgot to put up some when it wasn't broken. Anyways, this will be rather off topic but my car does what's known as and if referring to the issue correct is that it " cogs ". When I feather the throttle, it stutters and as you increase the throttle it runs as normal. Why is this? My current setup is 4300KV 9T, 23 pinion, 61 spur, 35A ESC and 5000mah 25C.

    Thanks
    Last edited by unknownmember; 26-09-2010 at 12:38 AM. Reason: Typo

  13. #12
    R/C Apprentice tdunster is on a distinguished road tdunster's Avatar
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    Quote Originally Posted by unknownmember View Post
    my car does what's known as and if referring to the issue correct is that it " cogs ". When I feather the throttle, it stutters and as you increase the throttle it runs as normal. Why is this? My current setup is 4300KV 9T, 23 pinion, 61 spur, 35A ESC and 5000mah 25C.

    Thanks
    Welcome to the wonderful world of low-end sensorless ESC's. If you replace the 23t pinion with a 19t it should be less noticable - although the cogging will still occur.

    Other than getting a better quality ESC or a sensored ESC / motor combo I can only think of one solution.

    Solution : Just drive flat out all the time. It's more fun that way.

  14. #13
    R/C Novice cielo1889 is on a distinguished road
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    how long have u had the motor for? cos that happens to my novak and i ignore it a couple of times till it stop turning, lol.
    i almost buy a new motor just to replace it but then i was bored so i open the motor case and check the bearings.
    it turn up to be the front bearings is pretty much dead and not turning anymore. so, i changed it and it goes back to normal =)
    not sure if urs has the same problem, but try to check the front and rear motor bearings
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  15. #14
    R/C Newbie unknownmember is on a distinguished road unknownmember's Avatar
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    Quote Originally Posted by cielo1889 View Post
    how long have u had the motor for? cos that happens to my novak and i ignore it a couple of times till it stop turning, lol.
    i almost buy a new motor just to replace it but then i was bored so i open the motor case and check the bearings.
    it turn up to be the front bearings is pretty much dead and not turning anymore. so, i changed it and it goes back to normal =)
    not sure if urs has the same problem, but try to check the front and rear motor bearings
    Well till I noticed it, probably only a month. But I'm not so comfortable opening up a motor though, can't even solder for crap. lol But was actually thinking of getting a Novak myself, a Velociti 3.5R GTB ESC combo....$250 including postage ( $430 at RCHobbies.com.au ...-_-!!!!!!!!!! ) Though Tapz mentioned above that anything above 6-7T is overkill which I don't doubt one bit but if it is that severe I'll just save it for my next build. Because i'm pretty sure it slips internally even with the 9T EZRUN, I've checked my gear mesh and there's about 0.1mm gap between the gears and when I spin the wheels, all wheels and trans spin freely no sign of too tight gear mesh. But I'll give opening the motor a try and see if the bearing is the issue.

    Thanks dude

  16. #15
    R/C Apprentice G-VWOW is on a distinguished road G-VWOW's Avatar
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    if i were you, i'd be betting my hands on the 3racing or yeah racing (can't remember which company) delrin tt01 spur gear set in 52, 55, 58 and 61t and some stainless steel (non tamiya) pinion gears, that will be absolutely bulletproof by then as delrin doesn't wear out as quickly as the normal nylon gears, and is also a bit quieter meshed against steel gears, and you don't need to grease it all unlike the tamiya gears, which wear out a lot quicker if you grease it.

  17. #16
    R/C Novice cielo1889 is on a distinguished road
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    how'd u go with the car? all good? if u need tamiya pinions i have a couple of them.
    i don't use my tt01 anymore so they r my spares that i don't use at all.
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  18. #17
    R/C Newbie unknownmember is on a distinguished road unknownmember's Avatar
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    Crap to be honest LOL. I didn't mentioned that very week on Monday I had mistakenly handed my cousin the radio and he basically trashed it. He managed to take out the rear right hub, upper and lower arm, swing shaft, steering arms and maybe even my rear alloy wheel....T T So now he can **** off and get his own car! But I'm all god for pinions, thanks a lot dude. Got from 19 to 25T. But if you are looking to sell your TT-01 send me some pictures because I wouldn't mind having a semi-basher TT for the pavement. I have another TT sitting around but it's in such a bad shape that I plan to use it for off-road bashing.

  19. #18
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    Quote Originally Posted by G-VWOW View Post
    if i were you, i'd be betting................
    Just got myself a 60T Delrin, oh and it's by GPM by the way. It's $10 which for A gear is a bit steep but how can I talk when I've spent so much on my TT that only about $100 of the $700+ actually makes a difference excluding the electronics and motor. But I'm enjoying it, it costs me a lot but I just love putting things together, tinkering, tuning all that.
    Last edited by unknownmember; 12-10-2010 at 11:00 PM. Reason: Typo

  20. #19
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    Quote Originally Posted by tdunster View Post

    Solution : Just drive flat out all the time. It's more fun that way.

    I did...in my mind I did. My cousin did the actual driving and he trashed it so now he can **** off. Also I tried the gearing and it did reduce actually but I changed it back LOL, didn't really need the low end power anyways, was going for high top speed. But it helped anyways, thanks man.

  21. #20
    R/C Novice cielo1889 is on a distinguished road
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    i wish i have it with me but i left it at my parent's in my room there, lol. i left it there to hold a rare replica shell of my real car, lol.
    well, i still have some tt01 parts with me if u do want it. i can try to find them and probably sell it to u cheap cos i dont really use them anymore.
    i can take pics of whatever i have for tt01 and send it over by tomorrow night.
    Custom midguard chassis - axial gears, 55T
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