Novak Conversions Jeep Wrangler TJ engine mounts

Anyone else into RC rock crawling?

This is petty and ridiculous, but a significant motivator for me buying axial was that it drives me nuts that Traxxas front axles have the pumpkin in the center of the front axle, like no other real 4x4.
 
This is petty and ridiculous, but a significant motivator for me buying axial was that it drives me nuts that Traxxas front axles have the pumpkin in the center of the front axle, like no other real 4x4.

Not exactly in the center but close.... I give you Unimog Portals front and rear...

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Having people to do it with makes it a lot of fun. It scratches that super technical crawling itch without worrying about my real Jeep getting blown up but I have blown up an axle shaft on the rc already lol.

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My TRX4 got the hardened rear axles within a couple weeks of having it... It probably didn't help that I put the lift and bigger tires on it as soon as I got it... (these were all from october and November 2020)

Stock form,
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Lift, tires, and high torque steering servo,
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Got a thrasher body and found a good place to use it behind the property.
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My TRX4 got the hardened rear axles withing a couple weeks of having it... It probably didn't help that I put the lift and bigger tires on it as soon as I got it... (these were all from october and November 2020)

Stock form,
View attachment 553103

Lift, tires, and high torque steering servo,
View attachment 553104

Got a thrasher body and found a good place to use it behind the property.
View attachment 553105View attachment 553106View attachment 553107
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Mine was a steel shaft on my super 8 axles. I contribute it to having the steering angle limit too far and out of the cv joint range since it popped at full lock as it was bound up. I’ve since limited it and haven't had an issue and I’ve had it bound up like no other. They’re fun little things and make for a good desk decor.

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It'd be cool to have a functional scale-model TJ with accurate factory-style suspension, so you could use it as a test platform for modifications. I'm a big fan of testing with models to get representative real-world results at a greatly reduced cost.

Anyone here have experience with building a ground-up frame and suspension r/c car?
 
That'd be a heck of a lot of work to build something you'd be confident enough to base decisions on purchasing upgrades for your jeep. The scale would also have to be bigger to get some of those finer details in there but it'd be a hell of a time replicating accurate weight. You also need to figure out scaling spring rates, shock resistances. Probably more work than its worth.
 
3d printing would definitely be your friend when it comes to designing and making rc parts. The friend that got me into has printed a few chassis and different suspension systems. We have even used many full sized jeep principles for those chassis but they preform differently than intended. That being said a scaled rc just won’t preform the same the full sized. The scaled weight and where the weight sits is totally off. Chassis constraints aren’t the same as steering and the whole powertrain is completely different. Getting trails to be similar in scale to a full sized one is also difficult. Not saying it can’t be done to learn stuff but after wheeling the rc around I would never base my designs for my full sized Jeep around the rc. You can learn a lot on how suspensions perform and track over rocks in a general sense but I wouldn’t be designing a 4link on an rc for the intent of using it on the full Jeep or anything really.
 
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It'd be cool to have a functional scale-model TJ with accurate factory-style suspension, so you could use it as a test platform for modifications. I'm a big fan of testing with models to get representative real-world results at a greatly reduced cost.

Anyone here have experience with building a ground-up frame and suspension r/c car?

Agree, but also agree it would be difficult to scale correctly.

I have definitely thought about tinkering with the geometry to improve performance and see how things work in general. For example, is the light front end that everybody fixes by adding brass really a geometry issue causing a bunch of anti-squat? Certainly it would be better to fix with geometry, if possible, ending up with a lighter rig overall.
 
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Scale is scale. Geometry is what it is. And dimensions are what they are. Plug the numbers in to a four link calculator and go. Don't think it would be super useful in relation to a scale stock TJ because of packaging limitations. But, you could prove out a design in small scale that would directly translate to a 1:1 vehicle.
 
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Novak Conversions Jeep Wrangler TJ engine mounts