Homemade brushless baja

[gyn77]

Originally Posted by othello

Can't deny that baja tires with around 170mm diameter do look way better then 145mm Truggy/Monster tires. Especially the 80mm wide rear tire. I understand that with custom built (wider) Hexes you were able to maintain a front width of 460mm and a rear width of 480mm now that you have mounted those wheels with smaller offset? Maybe you could post a picture showing your custom hexes.

Using an aluminum shaft should pe plenty as CVD extension. Which diameter did you use?

Post your results after you drove it outdoor. Grip at the rear axle must be tremendous with those wide Badland tires.

Sure, in this evening I will take a photo of my homemeade hex adapter and then I will post it here.

In the photos with big baja wheels, I used my homemade wide adapter.
The front track width is perfectly 460mm, while the post track width is 490mm, 10mm widther of original hpi baja post track.
However, I'm thinking to reduce my homemade hex adapter to stress less the bearings in the Uprights that will be stressed enough from very heavy baja wheels.


On front cvd I used 8mm alluminum shaft diameter, it seems to be strongly enough at torsion and flexure, not as a steel but better of alluminum tube I used before.
I made it in alluminum again because was the fast way, if it will not work good, I will do remake it in steel to a guy that works with metals and has a big lathe and a CNC.

This is a photo of my handmade alluminum shaft 8mm cvd (sorry for image quality):

[gyn77]

This is one of mine homemade hex adaptors for baja wheels.

[redshift]

Nice job gyn, you'd be hard pressed to tell it apart from a gasser. Looks great!

[othello]

Definitively looks great. You have to take someone with you to tape it. You could also fix your videocam to your transmiter.

[magman]

Great build! I have always wanted to take a truggy...add 4-5" to it and make something similar.

[aqwut]

That is an amazing build.. great job man...

[lydiasdad]

Looks great, it turned out very nice.

[jas21373]

Dude ...that thing looks ...Sick ,love the LST shocks

[lydiasdad]

what does it weigh ready to run?

[othello]

I browsed the manual (PDF) of the savage 5T to get an idea on how hpi mounted a 5T tire (24mm hex) on a savage axle.

The interesting part is that you can run wheels with 17mm hexes and 24mm hexes (hpi even includes 2 tire sets: 5T and Savage XL). To achieve this you have to switch between 2 different wheel axle shafts.

HPI Part Numbers (Main parts needed to mount wheels with 24mm hex):
. 38305 Wheel Axle Shaft 8x11x47mm
. 38306 Wheel Hub 24mm
. 38308 Wheel Nut M18x24mm

[gyn77]

Some little updates:

I did made a strong center alluminum CVD, 4 steel hex adaptors and I mounted original HPI baja shocks because with new huge baja wheels the other shocks were too short and does not work good.

Now the RTR weight is 7,9 kg (with 2 x zippy 3s 5000)

A video:
http://www.youtube.com/watch?v=VpGcThkc1d8


Some photos:

[suicideneil]

Do like

FYI, I believe proline make a nice under tray to keep out dirt from the bottom of the Baja- might work on your homemade version ( I see you have some kind of mesh in place now)?

http://www.prolineracing.com/product...b-201-146.html

[gyn77]

I know the proline undertray, but I am not sure that i could fit it in my homemade baja.
Anyway I don't placed a mesh but two pieces of carbon as carters and the frame seems to be well protected from dirty.

Originally Posted by suicideneil

Do like

FYI, I believe proline make a nice under tray to keep out dirt from the bottom of the Baja- might work on your homemade version ( I see you have some kind of mesh in place now)?

http://www.prolineracing.com/product...b-201-146.html

[redshift]

Very nice gyn!

Under 8 kg is amazing, looks very stable and easy to drive..

Great job on the centerdrives as well.

Show Rome how it's done!

[suicideneil]

Oh right, looked like a mesh from a distance