DBXL Brushless Conversion.

[Tug]

Looking sweet, run it in this guise yet? 

 

For those asking, I find 8S more than enough at this scale. Ok, so I haven't any experience beyond 10S, but I'm more than happy with 8 cells. Even my X2 is fine on 8S with a 520kv motor. 

[mond]

I ran it for 2 minutes to see everything was good, as I also changed all the O rings and gaskets in the diffs. Waiting on some new straps to turn up, the supplied ones are literally unusable with the batteries I have. Also hunting for 4 more spacers so there's less stress on the trays and then I'll move the one near the motor further back. It's way too front heavy.

 

8S seems good enough.  I was tempted to go to 10S but I have a nice collection of 4S batteries and 10S means looking at ESCs which are way more expensive than the XL2. 

[Tug]

I ran an Alien on 10S, was ok, but since it died for no apparent reason I've stayed on 8S and that's fine. 

 

I think the DBXL was always front heavy if my memory serves, so yeah, if you can shift some weight to the rear, all the better. 

[mond]

The Alien arming process seemed pretty scary and the MGM ESC is more than the car. Would be nice if Castle, HW or even someone like Tekin made a 12S capable ESC. Large scale brushless will only get more popular. 

[Tug]

Indeed, especially as they can run in more places. Then we'll all need to wait for the next generation of cells, something with four times the energy density of lipo! Ho yes! Two hour runtimes please! 

[evssv]

On ‎08‎/‎08‎/‎2016 at 21:25, mond said:

https://www.mgm-controllers.com/cars/losi-dbxl/mgm-compro-conversion-kit-losi-dbxl.html

how much did they charge u for the mount??or didu buy the lot??

[mond]

I ended up with the whole kit and offered to pay them the difference.

[evssv]

so u paid list price?

[mond]

Yeah.

[evssv]

ithk I`ll e mail like u did and see if they`ll sell me jus the mount....how much did they say to for it?

[mond]

I think it was 170 Euros

[evssv]

ouch!!...after reading through this the Kershaw one is a no go....

[mond]

Your motor mount not good? 

[mond]

12 hours ago, evssv said:

ouch!!...after reading through this the Kershaw one is a no go....

I wouldnt' say it's a no go, but I honestly was worried that I'd see allot of wear on the spur and pinion as it didn't align easily and was only held in alignment by friction. It's ok sliding back and forth out of mesh if it happens,  but not at an angle where they meet. Also, that size motor only being held on by two M3 screws looked like weak point. That and the mount flexed and the rear of the motor had no support, so in a big bump, it would flex under the weight of the motor. As designs go, it had flaws. 

[evssv]

I wouldn't  wanna  risk  me motor  or esc tbh

[lazkopat]

Any updates on this car?

[mond]

Not much really. It's working great but only driven it a few times after I put in the MGM mount. Got distracted by monster trucks and puppies. 

[lazkopat]

Picture of it please

[mond]

It's still looking pretty much like 

Except it's got dirty a few times and has been cleaned and is sitting in the spare room on top of a chest of draws for the winter.  Muck off is a wonderful thing.

 

The only change since then is I added some retaining straps for the pins.

Edited November 21, 2016 by mond

[lazkopat]

What sort of a runtime do you get on 8s ? 

[mond]

About 15-20 on the 5800 mah Gens Ace. I've not really timed it. When the weather sorts itself out I want to try 4 SMC 9000 mah 2S and the 7200 4S pairs. I think that will do 20-25. 

[Noj]

15 to 20 mins on 5800? Must have a light throttle finger 

[lazkopat]

I need to buy few lipos at least then...

[mond]

2 hours ago, Noj said:

15 to 20 mins on 5800? Must have a light throttle finger 

As I say, I've never timed it.