Hong Nor X1-CRT a.k.a Wanderer

[Zarizi Tech]

Technical data:
Car: Hong Nor X1-CRT
Transmission: Original diffs
ESC: Mamba Monster Max
Servo: Savöx SV-1271SG
BEC: Castle Creations 10A
Motor: Castle Creations 1515 2200kv
Tires: Panther Paddle 3.2"
Wheels: Maximizer 3.2" Beadlocks
Battery: Gens Ace 2200mAh 30-60C 5S LiPo
Radio: Spektrum DX3R
Body: Custom "Dragonlady"
Competition number: #1

[Zarizi Tech]

Okey, spring is getting closer here in Finland and now it's time to build a new Unlimited class rig. I had driven five years with my old rig and allthought it was unstoppable in the hills, it was time to put it on a shelf.


I got the wheels and tires from my previous rig. That's the new body for the rig. If everything will go as planned, it'll get a Krawler Konceptz treat.


Here is what I'm starting with. I bought it used and it had broken rear diff and pinion. Gotta fix those, when I find the parts.


Front axle is ready to go!


Some working with the rear of the car is to be done.


That's where I got so far. I have to buy some parts first and then I can start building it. A little over a month to the first comp.

I will have to hurry!

[MountainStorm]

NO welding! Wow that just blew my mind. Is that brake line? Looking forward to seeing what you do with it.

[Zarizi Tech]

Originally Posted by MountainStorm

NO welding! Wow that just blew my mind. Is that brake line? Looking forward to seeing what you do with it.

No welding. And that's 8mm aluminium pipe.

[Zarizi Tech]

Stuff started to walk in.


I want this thing to turn! ProTek RC PTK-170S Chad Bradley Team Edition!


Specifications:
Recommended Application 1/10 to 1/8 Scale Surface
Operating Voltage 4.8V – 7.4V
Operating Temperature 14° to 140° F (-10 to +60° C)
Operating Speed @ 6.0V 0.09/60° sec
Operating Speed @ 7.4V 0.07/60° sec
Dynamic Torque @ 6.0V 445 oz-in (32.0 kg-cm)
Dynamic Torque @ 7.4V 549 oz-in (39.5 kg-cm)
Motor Type High Efficiency Coreless Motor
Output Shaft 25 Tooth
Gears Metal
Weight 73.8g
Pulse/Frequency 1520μs / 333hz

Should be plenty enough for this beast!!

[Pygmy]

What I don't get about these high voltage servo specs is that they rate it to 7.4v.

A high voltage servo is supposed to work on 2S LiPo (I've asked AMain/ProTek a few years ago and yes, their HV servo's are designed to run safely on 2S),
which is *nominally* 7.4V but peaks at 8.4V (4.2V per cell).
So to be able to run on 2S liPo it should handle 8.4V without problems.
So why not rate it 8.4V ?

[Zarizi Tech]

Originally Posted by Pygmy

So why not rate it 8.4V ?

Fair question. Good thinking!

Let's get this project on the way! I've finished my crawlers, so now it's time to put the foff rigs on the move.


My starting point.


Fortunately I've got company!


Bought some wider hexes for it.


And new rear diff gearing.


All the spare parts in there. Let's see what I need.


Here's the old diff. To my naked eye, I don't see the gearing as big problem as the bearing on the right side.


New diff housing as well.


Will change everything just to be sure.


Diff reassembled.


Some of this magnificent Vanquish Products grease on it and it's ready to rumble again.


Attaching the diff housing to the rear axle.


Well greased!


Few screws to attach still.


I'm beginning to see the bigger picture here!


Ladies and gents - we have a roller!!


Diff works.


It looks awesome as a roller IMO.


From the rear.


Next job would be repainting the body.


And the electronics workout after that.


Weight as a roller.


Aprrox. weight RTR.


Gonna run it with 5S and 2200kv motor. Same set as my previous rig.


Battery fits on the box perfectly.


Here are my both foffers. They will be comp ready after this weekend.


I'll continue with painting and electronics today in the garage. I want to test it today!!

[Zarizi Tech]

Okey, spend some more time at the garage yesterday.


Servo was going to change in the last minute. The Protek will go to my modified class rig and the Savöx will be for this.


Motor found it's place quickly.


I wasn't build for soldering. So I got some help.


Servo is on the spot now as well!


It's easier like this. You have all the places ready for the electornics and you don't have to start building mounts for them.


Quickly attached ESC and tested with a low EPA's first. Dont want it to go full throttle with 5S LiPo.


Everything works. Time to start soldering.


Thank god, I only have to do this max. once in a year.


Don't need zip ties for the wiring. It's tight enough.


Hmmmmm....


It's all there!


All the electronics are now on their spots.


Tight tolerances for the wiring indeed.


Insert battery here.


Ready for first testdrive!


Model named now as well.


Nothing went wrong this time! Everything works as they should. Power seemed to be left in the batteries as well. Can't wait to go to the hills with it.


That's the weight RTR for now.

Tomorrow we are heading for some local gravel pits to test these rigs. Hopefully everything will go as planned, cause the season opener is just one week away now!

[Zarizi Tech]

Time to get up and out!


Thrilled to see this beast on the hill.


So far so good!


This thing seems to be unstoppable. I gave it some really hard time out there to see the possible weak points.


It seemed, that the batteries had also waited for the summer.


In the whole half an hour bashing nothing broke. That's kind of a record for me!


It still needs fine tuning on the suspension and steering, but all of those I can do next week.


Both of my rigs were awesome today. Can't wait to start the season next weekend!


Here is the first half of the battery on video! As you can see, I gave it a little bit extra throttle here and there.

Next thing would be painting the body. After that some tuning and then it's ready for it's first comp!

[Ty@Tekin]

Originally Posted by Pygmy

What I don't get about these high voltage servo specs is that they rate it to 7.4v.

Mostly to not confuse people. 7.2/7.4V has been the standard for a 6-cell pack or 2S LiPo for a long time now. Believe it or not, it causes people confusion when you start using peaked pack voltages. The packs are rated at the nominal voltage so the servo specs followed suit.

[Zarizi Tech]

Time to finish this rig for it's debyt comp!


First layer of paint to the body.


Second one.


I made some changes to the rig itself after the first practise session. Roll bars from front and rear are now gone. They just don't work in environment like this.


All that sand came off from the rig.


Secured all the screws as well.


Almost done!


Third layer of paint drying.


What the actual f***?!


Oh dear god... I ruined it.


Or?


Did I?


Probably yes.


The artist in me.


I'm pretty happy about it though. It wasn't supposed to be pretty.


Decals do a lot for this body.


It's ready for the battle! There will be over ten rigs on the line so it'll be one hell of a fight! But I'm confident.


Let's have some fun shall we!

Pics and videos will follow.

[Zarizi Tech]

Wanderer's debut comp is now behind.


That's a rispectful amount of rigs in the line. There hasn't been so many since 2010.


All shapes of rollcages.


Course three waiting for Wanderer.


Off we go!


Rig seemed to be relatively easy to predict, which is helping a lot in driving.


First two courses went well and rig managed to do nearly every gate.


The bottom of the hill reached again. Time to go up!


Clean performance so far!


Time to give it all for perfection.


The reason why I've been driving foff ten years now.


And another perfect score with a nice flight!


Wanderer takes off to the last course.


Can't really say I'm dissapointed with the rig. It does everything that my old rig would've done. Some parts even better.


On the 200 point gate.


Final effort to reach the top of the last course. Wasn't able to do that, but I'm still pleased with the result.


Here we have course five on video. This was really the decider for my success. Only one to make it to the top. With style!


Victory just ahead of my team mates. What a retard pic....


And finally the results. As you can see it really was a tight comp from start to finish. Can't except nothing more from the next comp after two weeks.

Hopefully we'll get that many rigs on the line in there too. This was a really good way to start this rig's career and season!

[Zarizi Tech]

I'm ready for tomorrows Foff Cup #2!


No changes after the first comp. I'll go there to learn new things about the rig.


"April Dust". There's fourteen rigs registered for unlimited class tomorrow. Should be a fight of a century! Doin my best and knowing this thing is a winner!

[Zarizi Tech]

Comp number two is in the books!


It was held in southern Finland last saturday.


Thirteen rigs were due to start!


I don't remember seeing this kind of fleet in ages!


First course.


I got the advantage of driving in other rigs tire marks. It's like train rails.


Up!


The start of this course was easy.


Down again! This thing really moves when you pull the throttle!


Last two gates were really tough!


Got just a little bit grip from the cliff, but the nose was already heading to wrong direction...


Down again we go.


Course three next.


In this course the last gate was long vertical cliff. Couple of rigs in front of me did a huuuge 360 degrees in the air and landed on their tires on the top. I just wanted a clean performance to continue in the lead.


I'm slowly beginning to learn this rigs basic behaviour.


Off we go to the last gate. FULL THROTTLE!


There it is! Touched the white marked, but got myself to the top!


Course five. A big problem was the visibility for some reason on this course.


And these tires don't even throw the sand like Proline Maxx Paddles.


I almost made it to the top.


Here is my best performance of the day. From course three. Jump included!


Besides all good perfomances, I had one bad which ruined my comp entirely. I rolled over at the first gates of the timed course. That means zero poitns from there. This is something that doesn't happen to me every day. Now it did and it was all because I was reling too much in the balance of the new rig. Well, shit happens and it left me with postition five.

After the comp I bashed with the car a bit and the motor got jammed. I'll have to see, what's the problem there, but I suspect it's the front bearing that has collapsed. There's good two weeks before the next comp, so I have plenty of time to order a spare.

[Bully2RockRomper]

Have loved the pics you have posted on FB of these amazing rigs Samu. Would be great to get an F1 Off Road scene here. Great excuse to hit the beach.

[Zarizi Tech]

Originally Posted by Bully2RockRomper

Would be great to get an F1 Off Road scene here. Great excuse to hit the beach.

Yeah, exactly!

[Zarizi Tech]

Yep, just as I suspected...


The front bearing of my motor is in one million and two pieces.


Completely ruined.


That is quite badly stuck there. Gotta find a way to remove it without braking the can.


Inside of the bearing on the rotor.

For now, I'll order a new motor, which will be Castle Creations 2200kv motor. I'll fix this one and keep it as a spare.

[Zarizi Tech]

Motor update before the next battle!


My new Castle 1515 2200kv motor arrived just in time.


Slightly longer can. More torque in this beast!


Tested it out with 13t pinion. It doesn't go as fast, but the speed is plenty enough I think. But the better thing would be the low end torque which this motor offers. Interesting to see it on the hills.


Twleve rigs on the line in search for gold and glory! Comp is on sunday and I'm ready for it. Bring it on!

[jonathansvahn]

Looks good! Do the tires stay on the wheels with just the beadlock or did u uae any silicone?

[Bully2RockRomper]

All the best for Sunday Samu, looking forward to seeing the footage.