Project: RWD/FM TB-03 Conversion

This is gonna be a long project..

Main Chassis = TB-03D
Will be using M-chassis gear set




Let me know what you think..

looks promising lance

i think it would be easier to use the graphite or carbon flat chassis to do this conversion ... the tub just seems it has so much plastic in the way

which can all be cleared off by a dremel

strawb wrote:

which can all be cleared off by a dremel

This is where you and your dremel come into play..

I'll try it out on the tub first.. If all's not well, then it's time to get a lower deck..


Thanks!

Hmmm.... I'm looking forward for this conversion.....

That is why i'm still holding on to my TB-03D up to now....... Hard to let go...

Scrap the mini gearset bollox....

Just shove THIS up front

Thanks Jarwin! Where are you?!


@andy, That is some sick mother lovin' machine!
Well worthy of its price but just a little out of my budget..

Thanks for sharing though..

The main reason I'm opting to use M-chassis gear set is to mount the motor in the centerline and as low as possible without having to use a smaller spur/pinion combo.

Doing some maths.
It looks like I'll need to gear up the TB-03's rear differential.

Since the M-chassis gears are pretty much set, I need to adjust on the rear IDR.
I'm looking for an ideal FDR of 7.0 and I'll try as much as possible to put it near that.
Looking at brushed motor/ESC combo.. Nothing fancy. Atleast not yet.


Diff Gear = 39T
Counter Gear = 27/16
Spur Gear = 37/21

TB-o3D IDR = 2.438

With these numbers, I'm gonna be needing a 40T, 0.6P pinion.
Where do you get this much of a pinion?!

But if I gear up the rear diff to 1.5, it'll only require a 24~25T pinion..



Still on the design stage.
Will keep you updated with the progress (hopefully)..

Solution found:



http://banzaihobby.com/index.php?main_page=product_info&cPath=18_67_517_521&products_id=12043


Paging JJ..

if it's RWD only i think you dont need to use that TB-O3 OD parts

the stock gear will do to minimized the thermal problem

@jon, thanks for the input..

I'm starting to consider other options like FF-03/Sakura FF gear set instead of the Mini's.

The reason why I might opt for this OD gears is that the M-chassis gear set are already geared down. Having a 20T pinion in a Mini gives you an FDR of 5.8. Considering the Mini's IDR, multiplied by the TB-03's IDR and you get a really high FDR = 10.521 with a 27T pinion. As I mentioned above, If I wanted a 7.0 FDR, I will need a 40T, 0.6p pinion.

This is starting to get a little harder than the Sakura Conversion..

LaNcE wrote:

@jon, thanks for the input..

I'm starting to consider other options like FF-03/Sakura FF gear set instead of the Mini's.

The reason why I might opt for this OD gears is that the M-chassis gear set are already geared down. Having a 20T pinion in a Mini gives you an FDR of 5.8. Considering the Mini's IDR, multiplied by the TB-03's IDR and you get a really high FDR = 10.521 with a 27T pinion. As I mentioned above, If I wanted a 7.0 FDR, I will need a 40T, 0.6p pinion.

This is starting to get a little harder than the Sakura Conversion..

I have a shelved TB03 project years back like yours using an electrifly GD600.
I dont want to mess up my chassis. If there is any free donor for prototyping.
I can revive this project

Another great project Sir! Idol!

I hope you get a donor..

I think the motor is sitting a bit too high and may touch the bonnet of the body.
Can it not be set lower?

Hi Lance

Yes it can be lowered by removing a lot of materials from the donnor chassis
and mounting the motor below. But this will make the prop line not level.
Or I am thinking of making a flat chassis out of 3 mm black acrylic ,
With matching motor mount. Inshallah during my next vacation.
I may need a lot of motivation and input from you.

hmmnn..

tomriv wrote:

LaNcE wrote:

@jon, thanks for the input..

I'm starting to consider other options like FF-03/Sakura FF gear set instead of the Mini's.

The reason why I might opt for this OD gears is that the M-chassis gear set are already geared down. Having a 20T pinion in a Mini gives you an FDR of 5.8. Considering the Mini's IDR, multiplied by the TB-03's IDR and you get a really high FDR = 10.521 with a 27T pinion. As I mentioned above, If I wanted a 7.0 FDR, I will need a 40T, 0.6p pinion.

This is starting to get a little harder than the Sakura Conversion..

I have a shelved TB03 project years back like yours using an electrifly GD600.
I dont want to mess up my chassis. If there is any free donor for prototyping.
I can revive this project

please man, can you revive the topic about TB03 RWD conversion? I'm almost getting one for really cheap, but first I want 2 do a RWD conversion(just like above pictures), since I've already an front motor CS chassis, I thought it could be a good one mod. such as the Wrap Up Next FR-D conversion chassis for the yoke mr4-tc Drift package (type-c)... but in FR-D chassis it have 4 pinion gears, but the gearcase it's just like these one, isn't?? I would say identical hahaha (sorry about my awful english) Well my good mate, can you help this rookie drifter??? =)

If you're referring to TomRiv's project, I'm not sure where he is right now. But he's not been around for quite some time now.



If it were of my project, thanks for the interest. I've swapped my TB-03D for a TA-05v2 since I have another car for drifting. The whole project was scrapped.

Yes, it is 'identical' to the FR-D conversion from Wrap-Up Next. Basically the same principles in gearing down and keeping the prop in line with the rear diffs. But I think the FR-D Conversion is going to be very noisy with all the metal gears.

You probably can take measurements and work with what you have. Just make sure the propeller shaft is straight and everything is running smooth. Gear mesh is very important.

Let me know how you progress and maybe I'd be able to help you with my limited knowledge.

personally i don't think there's enough benefit for having motor directly at front axle
vs work/engineering required

best manufactured solution is Eagle's TB03 GRT conversion:-



TBs can also be DIY flipped for not much effort...



TB03 can be source for parts for custom RWD chassis... here's one using TB EvoIV:-