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Wroncho II / Desert Truck

Old 07-17-2016, 04:48 PM
  #1  
Mike Flea
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Default Wroncho II / Desert Truck

I had torn apart my Wroncho to build the 1/6 Jeep. The Jeep was fun to build, and run, but heavy (14.5 Lbs), went through 2 servos, and split an Axial beadlock rim at the axle hex.

I'm 57, and although I'm in good health, over the years, I've injured both my knees, my back, and broke my foot, and walking over uneven terrain is a pain-in-the-ass, especially if it's recently rained, then the trails are slippery.


So I've decided to rebuild my Wroncho, hence the II. This one will be a true wroncho. Ordinarily, and I did it on the first one, the builds I've seen use an SCX-10 chassis with Wraith AR-60's. I'm using the altered scx-10 chassis from the Jeep, with the Wraith skid and AR-60's. Still using the extended rear frame rails, just made a new rear bumper. I had to extend the front frame rails 3" and made a new front bumper out of 1/2 inch flat bar. I put the 35t motor back in, but kept the 32p gears.
The jeep had a 14.5" wb, and the wroncho has a 12 3/4" wb, so I shortened the rear links, and replaced the long Punisher shaft with the original Junfac's, which since I don't have the long rear output on the tranny, I had to grind out some of the plastic on the rear of the skid to clear the thickness of the Punisher shaft. The Junfac fits perfectly.

Ok, so that's the cosmetic stuff. Over the last couple years the original Wraith axles from my Ridgecrest have taken quite a beating, so if I'm going to use this as a desert racer, I'm going to have to beef up the axles a bit. As funds become available, I'm hoping to purchase aluminum axle housings from either RC4WD or Vanquish. If any of you have any opinions on these choices, I'd like to hear them, good or bad.


I know desert racers usually use a solid axle in the rear, and IFS up front, but I'm different. When I was growing up, guys were running straight axles up front.
Wroncho II

Wroncho I, 1/6 Jeep
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Last edited by Mike Flea; 07-17-2016 at 04:53 PM.
Old 07-18-2016, 04:17 PM
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RustedRC
 
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Won't hear me complain about no IFS. i'm a fan of the straight axle look myself. you know i'm here waiting to see more.
Old 09-09-2016, 04:04 PM
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Ok, so this thing is waiting on aluminum AR-60 housings, new 2.2 rims and tires, rear trailing arms, want to make a rollcage with spare holder, add some scale details, little odds and ends. Weighted front tires have to go, afraid of causing major damage when jumping, (also they stick outside the body 1/2 inch all the way around, want a set of tires that tuck), lights, (gonna have to break down and get a BEC anyways, Savox servo keeps draining my battery), and maybe break down and try a Lipo.

Can anyone with experience on these batteries, tell me the difference between a Li-Po and Li-ion? Which is better/safer?
Old 09-09-2016, 06:17 PM
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Lithium ion is:
Higher in energy density.
Cheaper to manufacture.
But:
Heavier.
More rigid in shapes and styles.
More internal resistance, for slower discharging, and lower amperages.
Has greater aging, even if not used for 1 year.
More explosive, so requires an IC circuit.

Lithium polymer is:
Lighter.
Moulderble, and flatter shapes.
Less internal resistance for faster discharging and higher amperages, at up to 65C continuously, or 135C in bursts!!!
By comparison, a typical RCR chemistry 18650 can only discharge at up to 5.8 amps.
While an IMR chemistry 18650 at 2000 mAH will discharge at up to 10 amps, though an IMR chemistry 18650 at a puny 1600 mAH can discharge at up to 15C, but for the diminished capacity.
Has less self aging, even if not used.
Less explosive, so no IC circuit required.
But:
Less energy density.
Expensive to manufacture.
go lipo man. you will love the longer run times.
Old 09-10-2016, 10:58 AM
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Thanks Rusted!
Old 09-10-2016, 11:32 AM
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Any time mike.

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