Losi XX modern runner build

[Lavigna]

I love my XX Kinwald Trinity buggy so much I really wanted to build another. I'm planning to build this up into a high end runner with real performance potential, and modern electronics. I am also considering using some parts from the current 22 line, such as shocks. This is still up for debate though.

I'm starting with a beautiful new Standard length Graphite chassis. I am excited to use these beautiful Rusti Designs CF pieces.

I am still deciding on which combination of rear arms and Trinity rear block to use. The older pre-CR arms are longer, and therefore can be used with the more narrow XXX Trinity rear block. Decisions...

[Lavigna]

The 2.61 (truck) transmission is built up using all new pieces. Upgrades include these beautiful polished MIP lightened outdrives, and an aluminum diff nut. I also spent a lot of time trying to polish the transmission case for a unique aesthetics appearance, but the change is minimal.

I can say this is easily the smoothest XX series diff I have ever built. I'm not entirely sure why.

[ELF-BMX]

Looks like a great start! The diff nut, was that in a kit or separate? Also the diff gear, who makes that snd is it aluminum?

There is nothing more satisfying to me when building a car is when you get the diff perfect and shocks smooth. I can sit there a spin it all day long.

Looking forward to this bud!

[bird]

I've been running my MIP Aluminum axles with Weed Whacker Line for over a week in my Super XXT at the Track. No issues and no wear on the Titanium Outdrives! I had to glue them with CA glue.

The Super XXT has a one lap Handicap against a Brushed 13T XXT at the track(my buddy runs his and I let him almost lap me.) I have a 22T Slipper coming. The Brushless motors have too much torque, even for the dual slipper cranked down.

[Lavigna]

Well, I am trying to build this up so it's not just another XX buggy. I was looking at the beautiful Losi lightened motor plate, and thought it would be so cool if the milled lines went all the way through.

It was scary taking a dremel to a NIB MK1 lightened plate. I removed the little tab for the clutch cover and then sanded and smoothed all the stamped edges. I carefully cut out each milled line with a dremel, and then filed it smooth.

These plates have a clear anodizing finish. I polished that off on the back to bottom side. I'm still undecided if I'm going to polish the rest or re-anodized it.

I like how the milled lines are now visible on all sides and bottom. It sure wasn't easy work, and I was lucky I didn't have a single slip with the dremel. The second picture shows the motor plate straight from the bag.

[Coelacanth]

That looks beautiful Lavigna! But would those holes now permit more dirt and crap to enter? Probably a non-issue if it's a shelfer.

[jwscab]

he WILL see dust in places you would not normally see.

[Lavigna]

The modern cars have slotted motor plates and no gear covers, so I am not worried about it. It probably won't get run much anyways, lol.

[Lavigna]

I removed the rest of the clear anodizing and polished it all up. I mounted it up to the transmission using the Factory Works motor centering kit. I think this works really well with the milled motor plate and MIP outdrives. They all share the same look of machined and minimal.

These are the Factory Works instructions.

[radioactivity]

Really fine work on the motor plate, exceptional.
Can't wait to see this build unveil.

Chuck

[Lavigna]

^ Thanks!

I was planning to install the stock slipper components (below), but then I began looking at the modern 22 series pads and plates. They have much greater surface area, and they feature the machined cuts for more grip. They fit well with just a few small modifications. The newer slipper should be better suited for the power of brushless.

[Essejay]

As usual an incredible building from Lavigna

Regarding the tranny, why do you use the truck tranny? To better suit the brushless power?

Have a nice week-end!

Essejay

[Lavigna]

Thanks Essajay! I am using the truck transmission because I had all the pieces already. I am trying to keep my shopping on this build to a minimum. Over the years I have gathered a lot of truck XXT parts. Also, Kinwald used to use the 2.6 transmission on his XX buggies, so it's a small nod to him.

I did the Kinwald mod to the front carriers and cut off the top tab. It now has a direct kingpin setup carried over from the XXT.

[Lavigna]

In the theme of trying to make this a unique build, I decided to cut out the upper plate. I then cut some carbon fiber sheet to slot inside. I sealed it from the underside. Getting it all to fit by hand was a pain, but I'm happy with the result.

[Lavigna]

I'm unsure how much I like it...