Brushless quick drive Thunder Dragon

[wolfdogstinkus]

This is what you are left with when you remove the old servo and circuit board..

If you want to keep originality but gain reliability,, keep the original motor and just fit a cheap brushed ESC, 2s lipo, servo and receiver.. plenty of space inside..

I think the standard motor should be good for 3s which will give a big increase in performance..

[wolfdogstinkus]

Got some new tyres.

From the SW-01.

Bigger profile than the bald originals.

Narrower and taller..but much more "buggy" than the rally blocks..

 

 

[wolfdogstinkus]

Had an idea ages ago to fix my melted gearbox, the motor got too hot, melted and moved destroying the gearbox.

Hacksaw the end off the old original motor.

It's a perfect fit, screw holes perfectly line up.

Had to shape it a bit to clear the gears, might file it a bit more, but it's looking like a good fix 

[Kukkuluuruu]

Thanks @wolfdogstinkus for all the information. I have been too busy with work lately and I'm trying to read your posts later.  I'm sure that I will have additional questions for you

[wolfdogstinkus]

I had a problem with my repaired gearbox.

I bolted it all up with it locked in high gear 

Squeezed the trigger a little and it spun the wheels, got to half way, still no problems.

I had the gearbox in my hand at this point, not attached to the car, just wired up. 

Squeezed the trigger full blast, and the gearbox exploded in half breaking all 3 screw holes..  oops..

I also managed to snap 2 motor shafts by having the mesh too tight I guess?. So not a good weekends testing.

 

Got a mark 2 up and running and still got the old one minus a gearbox, (I have a spare somewhere so will rebuild at some point.)

But to add more bad news,.... I think the smaller rally block tyres are faster but I haven't confirmed yet because it's been too wet..

[wolfdogstinkus]

Currently fitted a Goolrc 2435 can size 4000kv motor. It fits perfectly and you can even get the heatsink in there, I've fitted it since taking this picture.

25kg steering servo, total overkill but it's all I had.

35amp EZRUN ESC, runs 3s lipo and fully programmable..

Flysky receiver 2.4ghz.

3s lipo. 

Steering servo saver taken from kit parts.. 

Tie rods made with a cut down M3 bolt and 5mm Tamiya adjusters and 5mm brass ball ends.. 

I like to cable tie stuff down but it's up to you how you fix it all in..

[wolfdogstinkus]

Battery box is currently empty.

But these fit in there perfectly, and I could easy get 2 in there.......

 I'll have to do some maths and see if the brushed motor will get close to the rpm of the 7800kv EZRUN motor, 

I don't think it will. Lol.

Naaaaa, don't think so, will probably just get another brushless motor for it..

 

 

 

 

[wolfdogstinkus]

I just found some new tyres..

Perfect fit and still soft..

And here's the part number,.

 

[Frog Jumper]

I accidentally bought some ThunderShot QD gears. They are free to the first person who claims them. You pay shipping from US...

Terry

 

 

 

[wolfdogstinkus]

Kyosho tyres, then mini lunchbox, then rally blocks for comparison.

[wolfdogstinkus]

Going to screw these onto the heatsink, it gets hot on 3s lipo.. lol

 

 

[Jimbothejetsetter]

Hi Terry,

Thanks for the kind offer, however I think postage costs to the UK would be more than the parts.

Jimbo

 

[Jimbothejetsetter]

4 hours ago, wolfdogstinkus said:

Kyosho tyres, then mini lunchbox, then rally blocks for comparison.

Hey Wolfdog, thanks for the tyre photo. The Kyosho tyres look ace. Where can I get them?

Thanks 

jimbo

[wolfdogstinkus]

3 hours ago, Jimbothejetsetter said:

Hey Wolfdog, thanks for the tyre photo. The Kyosho tyres look ace. Where can I get them?

Thanks 

jimbo

I found them on eBay. They did come up on a search for Tamiya quick drive.

Must be very close to the originals.

[wolfdogstinkus]

4 hours ago, Jimbothejetsetter said:

Hey Wolfdog, thanks for the tyre photo. The Kyosho tyres look ace. Where can I get them?

Thanks 

jimbo

https://www.ebay.co.uk/itm/313287842976

 

£6 a pair, cheapest tyres I've bought.. bargain..

 

Apparently only 9 available, get them while you can, I bought 3 pairs and just ordered 2 more.

[wolfdogstinkus]

I got 2 new motors, because I broke 2 during my last maintenance..

It's a "Surpass hobby 2430 4 pole 8200kv"

On paper, it's the fastest motor I've had so far,,,, but it's only rated for 2s lipo,....

My ESC will take 3s and the motors are cheap enough to sacrifice for a speed run..

[wolfdogstinkus]

So I spent some time yesterday making up two runners from all the spares I've collected..

 

 

 

I have one with a Goolrc 4000kv, and the other with the surpass hobby 8200kv.

 

 

 

[wolfdogstinkus]

Modified heat sink,,.. don't know if it will make any difference but the heat sink got really hot with the goolrc on 3s..

[wolfdogstinkus]

Fits well.

[wolfdogstinkus]

Just been out for a run on a wet road..

Did manage a 30mph run which was good considering the conditions..

Then,, this happened,...

I warn you that there may be swearing but it's in Scottish so you might not realise anyway.. lol

 

 

[wolfdogstinkus]

For anyone under 18 who can't see the video on YouTube..

[wolfdogstinkus]

I think it's just the ESC, the battery wires were melted by the time I managed to locate them within all the smoke.. 

I liked this ESC and it is rated for 3s..

[wolfdogstinkus]

This was it's final run before it decided to take up smoking..

 

[wolfdogstinkus]

The damage,. Mostly hot glue and melted esc, maybe I shouldn't use hot glue on electronics?

This'll polish out,,

[wolfdogstinkus]

It got hot enough to warp the battery compartment..