Stretched e-Muggy (Baja-style) Build Thread

[brian015]

Originally Posted by thzero

Well that may be true, but what holds the hub onto the axle laterally?

The pin - but in my experience, impacts that would pull the wheel off sideways are rare (depending on how you drive, I guess!).

[Overdriven]

Originally Posted by brian015

I think Overdriven is saying to drill a new 3mm hole in the Baja hex - not your axle.

That's exactly what I meant.

Originally Posted by thzero

AH yes, good point about drilling a new hole in the hub. Had been approaching from the other direction.

Well that may be true, but what holds the hub onto the axle laterally?

Originally Posted by brian015

The pin - but in my experience, impacts that would pull the wheel off sideways are rare (depending on how you drive, I guess!).

You're more likely to encounter significant forces that are trying to push the adapter onto the axle rather than pull it off. If you look at the diameter of the adapter itself, theres quite a bit of thickness there that the pin would have to rip through to get it off. I'm not saying its impossible to do, but it would take some doing.

[brian015]

Originally Posted by Overdriven

You're more likely to encounter significant forces that are trying to push the adapter onto the axle rather than pull it off. If you look at the diameter of the adapter itself, theres quite a bit of thickness there that the pin would have to rip through to get it off. I'm not saying its impossible to do, but it would take some doing.

[Jahay]

Great job brian on the modded hexs!!! I was thinking about doing something similar to this just for the front tyres to give me a sort of staggered wheel look...

I finally decided to bite the bullet and bought baja bowties for my savage.. but i bought 4 rear ones... just need to get the crazy 30mm hexs now and some alloy tape...

your build has been real help for me! Mucho Appreciated!

[brian015]

I made two of the shortened extenders for the front of this buggy. The way I drilled out the 8mm hole in the insert is by lining the 1/2" aluminum rod up vertically and then drilling through one of these extended hexes to keep everything aligned. Otherwise, I would never have been able to center the hole properly:



I drilled the pin hole simply by clamping the hex to the drill press table with by its flats - keeping the pin hole exactly at a right angle to where the axle will go through:



I JB-welded the insert into the extender and then filed it down to exactly the right length so I could get one shim between the extender and the bearing:



With these on the front of my buggy, the width is now around 18" (about an inch less than before). The rear width is 19.5"





I like the way it looks, but I'll have to see how it handles.

[Jahay]

i had a staggered offset similar to this on my savage... I loved it because the savage wouldnt roll, but would turn in harder.

This is something i will attempt most likely. You did a very clean job. I just hope my dril and press are up to drilling the 8mm alloy.

THanks for the pics brian!!!

[brian015]

Originally Posted by Jahay

i had a staggered offset similar to this on my savage... I loved it because the savage wouldnt roll, but would turn in harder.

That's what I'm hoping for!

[v8hatch]

Wow that's a great idea something i might have to adopt Brian as i'm finding that roll overs are very easy, be interesting to see how you like the way it handles too.

[brian015]

Originally Posted by v8hatch

Wow that's a great idea something i might have to adopt Brian as i'm finding that roll overs are very easy, be interesting to see how you like the way it handles too.

I've been using the full 30mm extenders on all 4 wheels all along - so it's been hard to roll this over - it's very stable. Now the front is a little narrower, and I'm hoping for more responsive steering without increasing it's roll-over ability too much!

[brian015]

I saw this build last week but didn't get around to posting about it:

http://www.hpibajaforum.com/forum/sh...d.php?t=103080

It's a nice 4wd shorty Baja with chain drive that seems to be very well-made. I found it interesting that some agree that a 4wd Baja should be a little shorter - pretty much the same length as mine. Now he just needs to get a CC kit and convert it!

[Jahay]

nice find brian... very nice build there! Going to have a closer look at his build.

[brian015]

I got this out for a quick run today - only 2800mAh used. Again the Gens Ace batteries performed well:



Here's a short video - please excuse the shaky camera - this is my six year old's first attempt at being my cameraman. He wants me to include this smiley-face:



The narrower front seemed to be fine.

All temps were low (motor 120F), except my only concern today was that my CD was at 200F after the run. That seems a bit high for the conditions today - I have 30k diff fluid in there. I'll check my mesh and alignment to see if they could have been generating extra heat. Otherwise, I might go to heavier fluid to see if it helps.

[Jahay]

As you have now got your son as the camera man, i expect more videos of this monster with some more high speed passes.

Seemed to corner nicely with the narrower offset on the front.

Im running 300k oil in my CD and temps do not get as hot as that... i measured mine at 140F which is a little better.

But it was hot when i had 50k in there!

Under 120 Amps sounds good... well within the 160amp capabilites of the Ice HV!

[brian015]

I got my CD reinstalled with 100k diff fluid and it looked like it was slightly misaligned with the motor mount - probably why I lost my pinion a couple weeks back. So this weekend when it dries out I'll get this out again to see how it performs.


I saw another cool build on the Baja forum - a 1/8 scale baja build. This guy is off to a good start:

http://www.hpibajaforum.com/forum/sh...d.php?t=104095

[x-y]

nice project ........ ¿weight rtr, mah/v bat, runtime, temperatues?