Asuga Will motor 90mm fit?

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Raxav

Raxav

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Hello, i'm planing to get Asuga XLR roller soon and i was wondering if my Ezrun 4990 g2 will fit? It's pretty big ( 90mm long and 49mm diameter). From what i saw stock 6s motor is 75mm long and 41mm diameter. Anyone tried to fit bigger motor? I'm all in in terms of cuting some stuff but i wonder if it's even possible to place that engine in.
 
Here's a 4985 in my python, I'm using the taller mount which the asuga comes with standard, and first pic is a 4292 in my asuga, fits fine just gotta trim the side skirt as the motor will stick off a bit so yes you should be fine fitting that system

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For me it's both!

My 4292 1780kv is rated at 4200 watts. On stock gearing in my Kronos XTR, it's not as fast as the 825, but it's got more useful pickup throughout the rev range and feels punchy. At the end of a run, the motor is significantly cooler.

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It's chunky! But what's trimming a little plastic between friends....🤣😜 (For you Asuga drivers!).
 
Why not get sensored motor? They should get less hot. Well, thats what some say. Could be wrong ofc 😉
 
Sensorless is generally more efficient, not sure how others run theirs but I know castle only runs sensored on startup, once it's off and running it switches to sensorless due to the fact it's more efficient and creates less heat, per their marketing jargon anyway
 
Manolis said:
Tranny would handle the torque?
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I believe the tranny failure caused by the upgraded power is because the elastic properties of engineering plastic cause the gearbox case to deform and change the gear position. so I upgraded some aluminum alloy parts to strengthen the body and minimize deformation, especially the front and rear gearbox case. after I replaced the centre Diff bulkhead back to the original for absorb part of the impact, subtle vibrations and noise during operation, it seems to be better. (differential case has not been replaced, that is not a matter)
but I must say that Team Corally’s bevel gear is really durable and I haven’t replaced it yet.
 
Alloy transmission cases are generally much more precise with finer tolerances. They are harder ie less prone to distortion under load, which is preferable in higher power applications.

As with all alloy parts, they are less elastic than engineering composite plastics and heavier.

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When alloy stuff is forced to bend, past the limit of it's elasticity (Young's modulus), it stays bent. When you bend it back, the alloy may be straight - but it will no longer possess the same strength and properties that it did before. The crystalline structure of the alloy is permanently altered.

Thankfully, even bashers are unlikely to bend alloy transmission cases! So use of alloy in this application seems like a sensible option - the only disadvantage being added weight.

I note the Vivaton alloy cases for Kagama etc have larger input bearings - which is a very good thing.

Before I bought the XTR, I wondered about 'big block motors' and Basher Queen risers etc.

What I was advised and learnt was that our rigs are massively over-powered as it is. Adding greater torque with much larger, heavier motors comes with the compromise of adding significant weight, which negatively impacts both balance and handling.
 
If you think about it our rigs are enormously overpowerd. Not everything is scalable with size but if it would a 1:10 RC scaled up to 1:1 would go like 480 mph. And all that power is also going through scaled gears and axles etc. I always wonder if you would make an 1:1 rc car, and remove all driver space etc. You could make it go as fast. But that would probably be impossible because as I Saïd not everything scales with the same factor and/or linear.
 
Niekname said:
If you think about it our rigs are enormously overpowerd. Not everything is scalable with size but if it would a 1:10 RC scaled up to 1:1 would go like 480 mph. And all that power is also going through scaled gears and axles etc. I always wonder if you would make an 1:1 rc car, and remove all driver space etc. You could make it go as fast. But that would probably be impossible because as I Saïd not everything scales with the same factor and/or linear.
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1:10th TC3 did 200mph!!! Scaled up, that's 2000mph! 🤯

69mph at 1:8th scale would be 552mph full-size. Insane.

However, the mass of an object is dependent on it's density and volume.

Our 1/8th rigs weighing approximately 4kg wouldn't weigh just 32kg at fullsize - because our machines have 3 dimensions.

However, if you 8x8x8 = 512, then multiply that by the weight, suddenly it starts to make sense. 512 x 4kg = 2048kg.

Our 4kg truck powered by a 4hp brushless motor would need to have 2048hp to have the same power to weight. 1hp/kg. 👍
 
Yes, weight is one of the things that isn't scaleable at a 1:8 factor. I believe drag as well, that is probably drag x drag, as it is mostly surface area and that has 2 dimensions ofc. Don't quote me on that though 🤷‍♂️
 
Niekname said:
Yes, weight is one of the things that isn't scaleable at a 1:8 factor. I believe drag as well, that is probably drag x drag, as it is mostly surface area and that has 2 dimensions ofc. Don't quote me on that though 🤷‍♂️
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I think you'll find a 1:10th scale car - provided it's made from the same material - 10x10x10 - would exactly work out at the same weight as a 1:1 scale car. Ie 1000 1/10th cars. 👍
 
Horatio said:
Alloy transmission cases are generally much more precise with finer tolerances. They are harder ie less prone to distortion under load, which is preferable in higher power applications.

As with all alloy parts, they are less elastic than engineering composite plastics and heavier.

View attachment 6793
When alloy stuff is forced to bend, past the limit of it's elasticity (Young's modulus), it stays bent. When you bend it back, the alloy may be straight - but it will no longer possess the same strength and properties that it did before. The crystalline structure of the alloy is permanently altered.

Thankfully, even bashers are unlikely to bend alloy transmission cases! So use of alloy in this application seems like a sensible option - the only disadvantage being added weight.
Click to expand...
You are right. by the way, "resilience" is important for off-road types, exspecially basher, Before endless matel parts you must first consider how to(which parts) absorb the impact when bashing, Choose a property first between stiff and flexible, notice that the impact force will smash the most "soft" parts, it means that parts become short life, when selecting a harder material the effect will become more intense.

Horatio said:
I note the Vivaton alloy cases for Kagama etc have larger input bearings - which is a very good thing.
Click to expand...
I put the L-1680HH stainless steel material to replace the original 688 bearing for Increase durability，it works fine
 
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