Tamiya TT-02B Project: Tamiya TT-02 Hop-Up Heaven! (Episode 8)
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- Опубліковано 26 чер 2021
- Tamiya TT-02 High Speed Gear Set, TT-02 Aluminum Motor Heat Sink & TT-02 Aluminum Prop Shaft & Joints! 4 x original and essential Tamiya Hop-Up Options and Metal Upgrades for the Tamiya TT-02 and TT-02B 1/10 4WD Buggy - that I actually believe will add a lot more value to the TT-02 than just the 'bling-bling' factor!
Thank you for watching!
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NOTE: In the video I mistakenly inform that the combination of the new 68T spur gear with the new 19T pinion gear have the same gear ratio as the combination of the stock 70T spur and stock 17T pinion. Of course the 68/19 combo has a much higher gear ratio than the 70/17 combo. Otherwise it would be a little pointless 'High Speed Gear Set'. What I think I meant in the video was that with the new 68/19 you use the same settings on the motor mount as the stock 70/17. But of course a smaller spur or/and larger pinion equals a lower gear ratio, less acceleration, less torque and more top speed. Here are the correct gear ratios for the two set-ups in the video:
Stock 70/17 = 4.118 with a total gear ratio of 10.71:1
High Speed 68/19 = 3.579 with a total gear ratio of 9.31:1
The benefits of the high gear spur gear set are multiple. As seen in this video you can go up in the pinion size using the same slots in the stock motor mount, which means you can reach lower gear ratios. The included alloy spur gear mount also means you can mount a 64T spur from Tamiya - or - of they fit - mount other non-metric spur gears from other manufacturers (with other non-metric non-0.6 mod pinion gears). This requires a freely adjustable TT-02 motor mount such as the ones from Fastrax (as seen in the video) or Yeah Racing.
The TT-02B in the video was born as a Tamiya Dual Ridge XB (Ready To Run), item no. 57876 released in 2014. You can watch it bone-stock in previous episodes and find the full stock specifications in the description box of the previous episodes.
Upgrades and optional items (so far):
- Tamiya TT-01E Ball Bearing Set (54025/OP-1025)
- Tamiya DF-02 Assembly Universal Shaft (53791/OP-791)
- Tamiya TT-02 High Speed Gear Set (OP-1500/54500)
- Tamiya TT-02 Aluminum Propeller Shaft (Op-1501/54501)
- Tamiya TT-02 Aluminum Propeller Joint (Op-1502/54502)
- Tamiya TT-02 Aluminum Motor Heat Sink (Op-1571/54571)
- Fasttrax Tamiya TT02B Aluminium Adjustable Motor Mount (FTTA020B)
- Fasttrax Tamiya TT02B Aluminium Front Steering Block (FTTA034B)
- Fasttrax Tamiya TT02B Aluminium Front C-Hub Carrier (FTTA035B)
- Fasttrax Tamiya TT02B Aluminium Rear Hub Carrier (FTTA036B)
- Carson 19T 0.6 Mod Steel Pinion
The Tamiya TT-02B Project Episodes (so far):
- Ep. 1: Stock TT-02B Speed Test: • Tamiya TT-02B Project:...
- Ep. 2: Upgrade: Tamiya Ball Bearings: • Tamiya TT-02B Project:...
- Ep. 3: Upgrade: Fastrax TT-02B Metal Parts: • Tamiya TT-02B Project:...
- Ep. 4: Upgrade: Fastrax TT-02B Metal Motor Mount: • Tamiya TT-02B Project:...
- Ep. 5: Off Road Test Run: • Tamiya TT-02B Project:...
- Ep. 6: On Road Speed Test: • Tamiya TT-02B Project ...
- Ep. 7: Upgrade: Tamiya DF-02 Axles & Outdrives: • Tamiya TT-02B Project:...
- Ep. 8: Upgrade: Tamiya TT-02 Gear & Metal Upgrades: • Tamiya TT-02B Project:...
More episodes coming up!
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#NordicRCVisions Statement:
This video features homemade footage of my own #RcCar #Tamiya #TamiyaRC #TamiyaRCCar #TamiyaTT02B #TamiyaBuggy from my personal #RC collection. All rights reserved.
All #RcCars and RC parts in this video are hobby-grade and intended for adults and ages +14 years.
Goddag, Mikael - she's really coming together now! Fantastic upgrades and very well presented by your good self. One thing, though. The instructions for the gearing are very misleading. It does appear to show that the 17/70 and 19/68 pinion/spur offer the same gearing, but that cannot be correct. If you work it out:
For a single turn of the spur gear the 17/70 option will need the pinion to turn 4.117 times.
For a single turn of the spur gear the 19/68 option will need the pinion to turn 3.58 times.
Therefore for the same rpm of the motor, and hence the pinion, the spur gear and hence the wheels are spinning faster with the 19/68 option.
It took a while to get my old head around it, but I'm sure it's right! I'm sure someone will comment if I'm wrong!
Wishing you a great Sunday, my mate! :O)
Goddag, Mark! Thank you! Uhh, you saved it all! I think my head was too occupied with the editing (had to edit this extremely fast) so didn’t even think about it too much and didn’t even calculate. I don’t think the list on the instructions is meant to show it has the same gear ratio though. It just shows the new gear ratio with the new spur - and then what holes to use on the motor mount. That’s what I used it for anyway. But yeah, thought about my own comment (‘same gear ratio’) now and calculated - and you’re absolutely right. What a mistake I made in the video. I get the same numbers, calculating the external gear ratio, 17/70 and 19/68. And the logic is clear anyways: Larger pinion = more speed/turns. Smaller spur = more speed/turns. So putting on both a larger pinion and a smaller spur at the same time will definitely not produce the same gear ratio 😅😅😅 Of course we’ve gone up in speed with 4 tooth. Me Stupid. THANK YOU for saving the day, Mark! Good thing I have you to save me all the time, my friend 🤭👍🏻🙂 Hope people will read your comment that I pinned now.
@@NordicRC Hi mate - I think the instructions are very unclear, yes I think they are supposed to show the new holes the pinions are to use with the new 68T spur, but it also reads as if the ratios are the same! You know that I definitely don't think you are stupid, far from it my friend. I know how it is when time is short and you want to get a video uploaded. When I'm in a rush, all goes wrong, and to make things worse, at those moments my internet connection always seems to crash in the middle of an upload, making everything worse! We call it "Sod's Law" here in the UK, if one thing goes wrong, more problems usually follow! Anyway, sorry for the rambling! Thanks for the pin, mate - you are a good guy! 😎👍
Ha ha, ‘Sod’s law’ … so cool you actually got a name for it. Yeah, one problem often feed other problems. This time around it wasn’t due to technical problems (which often is the case), but just bad planning and lack of time. Yeah, my mind that was in a hurry was probably influenced by the instructions. But funny I could even think that, since it would be a very very bad ‘High Speed Gear Set’ if going up two tooth in pinion size would produce the same gear ratio as before 😅😅😅 But thanks for the save my mate. Really appreciate it 🙂👍🏻
@@MarkBryanRC Hiya guys, here in the States, we call it "Murphy's Law", what can go wrong, will. Yup Yup, smaller spur/bigger pinion yields faster speeds, but also harder on the motor & battery (not too bad unless ya go extreme with it). Have a good week guys!!!
I had some more time now and added a little note in the description box that I see fitting as a comment here too. Hope I got it all right this time (if not, I expect Mark to save me again):
"In the video I mistakenly inform that the combination of the new 68T spur gear with the new 19T pinion gear have the same gear ratio as the combination of the stock 70T spur and stock 17T pinion. Of course the 68/19 combo has a much higher gear ratio than the 70/17 combo. Otherwise it would be a little pointless 'High Speed Gear Set'. What I think I meant in the video was that with the new 68/19 you use the same settings on the motor mount as the stock 70/17. But of course a smaller spur or/and larger pinion equals a lower gear ratio, less acceleration, less torque and more top speed. Here are the correct gear ratios for the two set-ups in the video:
Stock 70/17 = 4.118 with a total gear ratio of 10.71:1
High Speed 68/19 = 3.579 with a total gear ratio of 9.31:1
The benefits of the high gear spur gear set are multiple. As seen in this video you can go up in the pinion size using the same slots in the stock motor mount, which means you can reach lower gear ratios. The included alloy spur gear mount also means you can mount a 64T spur from Tamiya - or - of they fit - mount other non-metric spur gears from other manufacturers (with other non-metric non-0.6 mod pinion gears). This requires a freely adjustable TT-02 motor mount such as the ones from Fastrax (as seen in the video) or Yeah Racing"
Its looks amazing brother 😱 don't you just love hop ups and putting it together to look like that 🥰 carnt wait to see it Rip around 🤗 have a wonderful day my good friend 👍😎🥰👍
Thank you, Tony! Yeah, just love having a project - the project is the reward itself 🙂 Have a great day too, Tony
@@NordicRC I love this hobby 😛 take care bro 🙏😛🙏
Me too 🙂👍🏻
Your closeup shots of the parts are so clean and well done!
Glad it is appreciated!
Oh, that's so nice! I really want to get started on mine soon, I really gotta find the time! That motor mount, I'll be installing one of those ribbed ones, so it was really good to see they "leak" into the gearbox, I need to try seal it up somehow, maybe solder it...
Already looking forward to the carbon episode!
Hi Mads! Good to read you. He he, yeah, time is a real issue for me too. But just taking it step by step. No rush. My TT-02B project will probably be finished at the end of 2030 😅 Don’t rush yours. Yeah, well, I think the mounts with the cooling fins (GPM, Fastrax) are alright, but they definitely do not seem to like sand combined with me cleaning with my air compressor. If you do not use an air compressor I think you could seal it with just some grease. And Tamiya’s own alloy motor mount seems very similar to the stock one, so I think that one is sealed more. But of course that limits the spur and pinion to the metric and 0.6 mod. But personally I’m not gonna use anything else so that’s fine with me 🙂
Love it, I just have a fan on my motor 👍🏻
Thanks bro! Yeah, a fan will be very effective!
Definitely some nice hop ups
Thank you, brother!
Awesome video again man, loving the swag you have going into that buggy, Great work, keep going!!!!
Thank you, Bob! Projects are so much fun!
This project is going nuts and i love it :)
I love projects and seeing the car change slowly 🙂 The project is the reward itself
Awesome build so far,looks great
Thank you, Duke!
👍 Wow it's coming out real nice!
Thank you, Steve!
Hiya Mikael. Nice upgrades and a great edit as ever. Things like the motor plate letting in dirt are really annoying! Apart from that, all good stuff. You need to get hold of the GPM metal ring gear and bevel gears. I might have already said that. Expensive mind you. Look forward to the carbon bits. Cheers for now :-)
Hiya Pete! Thank you! Yeah, I was really liking the motor mount … but dislike dirt and sand in the gear box even more. I think most of it is due to my air compressor cleaning, but since I probably will clean it again with that one, I need something that can take it. I might get the Tamiya alloy motor mount. Looks like the only one that doesn’t have the cooling fins exposing everything. Ahh, yeah, I remember our talk, and believe me, I’ve looked at those several times. Steel. A full set will cost me about 80€. And I already got 3-500€ spend on this. So I think I’ll have to wait changing the gears until they brake 🙂😅 Cheers for now my mate
@@NordicRC well if you've spent that much already then what's another €80 ? 😁
Ha ha, I think I will use that argument when speaking to the wife about raising my RC allowance 😅🙂👍🏻
Loving the build series on the trusty TT02
Thank you for following along, James! I’m having fun 😊
Very nice job 👍
Thank you, Ronnie!
Great video. I waited for the main propeller shaft upgrade. Steering links are next?
Thank you, bro! Yeah, quite essential, that shaft and spur gear, if one wants to play around with larger pinions and more powerful motors in the future. Definitely will do the steering links at some point, just unsure what I will chose. Would love the original Tamiya ones, but the package with the high torque servo is so expensive. Maybe GPM Racing instead. Next up will be shocks, turn-buckles and shock towers.
Hello friend, is it easy to assemble this tamiya tt 02B kit? Greetings from Mexico

Yeah! No problems there. And the typical Tamiya manual that will guide you through it.
The hop up options are created at the same time as the original plastic blue prints but why ?😂🤣
Why not heat sink with electric ventilator? I have That on mine.
What do you think of the new td-4 super avante are you going to get one?
Looks great! Not sure yet. Still got a couple of kits I would like to build first
The metal motor mounts a bit poor at keeping dirt out.
Yeah, I definitely think it must come in that way. But I also think my cleaning with an air compressor has something to do with the amount of dirt 🙂😅 But it will be better with the stock motor mount.
Why is it still seem like the shaft is jumping?
Jumping?
@@NordicRC when you were rotating the spur gear it looked like it wasn't staying put it wanted to move up and down meaning the shaft was doing that.
@@bradkalman2353 I don’t see any, but maybe you mean before the gear cover was on? It’s holding the bearings. So quite normal. It isn’t attached yet but just loosely placed. But it’s always good to check if everything is spinning during each step