Modified my cobra, carbon fiber chassis and shocktowers, rest is aluminium, No plastikk at all, New HD power servo 18kg, esc 150a surpass hobby, New motor, 3670, 2650kv ( 1600w) wheel hex also aluminium, , all schocks New, and mounted a swaybar at rear end. 4s lipo, 14 t pinnion. And New 6ch dumborc radio and receiver with gyro. It has become an unbreakable speed truggy,, does about 100 km/h. Very satisfied😊
They can definitely be upgraded to be quite tough, my BMX track vids show just how tough mine is now. But I personally wouldn't buy another because the amount I spent I could've got another X-maxx😱
La vieja maldición China, te hacen pensar que el auto es una ganga y que se puede "mejorar" al cabo de un tiempo te das cuenta que con lo que invertiste pudiste comprar un automóvil de verdad
Hi teacher!! How I can solution the problem for the e-Clip for the servo? I don’t want to change for metallic yet. And some one tell me u can put super tite and stick it. What u recommend me???
I made a 6mm thick spacer about 30mm round from the clear plastic, then drill a hole in the centre smaller than the spring, I think 8-10mm hole(the spacer pushes down the spring once screwed down)
Gday mate, i have the chasis kit on the way. Can you suggest a sweet spot for a 3s system. Im thinking 120amp esc and the 3670 motor but still undecided between 2150kv or 2650kv
Hey👋 Not sure what you mean by a sweet spot, if you mean to buy the parts you can get what your looking for basically anywhere. I do highly recommend a good esc, for your own benefit definitely avoid Surpass/Rocket, Hobbyfan and GoolRC escs. And 2650kv on 3s will be fine and will give you more top end speed, I found 3665 3500kv on 3s to be a great light weight setup as these cars a rather weak in general and the lighter you can make it the better it will be for damage prevention👌
Running a brushless motor 4068 and 120 amp ESC with alloy upgrades new body a bit of a hassle to fit motor got alloy 4 pinion diff coming front to back
Hey my friend what sup, i have a question. can the vrx cobra body shell fits on the vrx blast, or say even the legendary nitro becsuse the all share the same parts so i was wondering if the share the same body shel as well
The cobra and blast are the same car, identical parts and lengths all round and post holes are in the same spots so yes direct fit. Not sure about the Legendary nitro, I've not had any Legendary cars but I know there are different length vrx chassis, I assume Legendary has also so I think it would depend on the chassis length.
@@rccrazy well I know that the cobra chassi and the legendary is the same.they share the same chassi, suspension, swing arms, diff and many more. I didn't upgrade the chassi on my legendary. but I have vrx cobra swing arms, bearings holder back and front installed on it now. What I want to do is give it a new look like the cobra. I just love how it sit low to the ground
Yes the cobra style looks good think that why people like them so much despite them being quite weak. But from what I can see online the nitro chassis and the long wheel base chassis of the cobra are infact different, cobra is longer and has a plastic chassis the nitro has a shorter alloy and chassis, you'd probably just need to drill new post holes to fit the cobra shell.
Hi I just got the blue racing plate for the vrx cobra. It goes on the front. Would u know if I replace the one that's there now or does it fit over everything. Thank u
Hey, you need to remove the plastic one and install the alloy one in its place. You should only have to remove the 4 or 6 screws on the underside, the part should come out with little effort. If you have any issues you can message me on Facebook and I can send you some pics to make it easier. 🤘👍
Whats up Choo! 😄 I hate to say it mate, I wouldn't recommend a Cobra unless you stay on the flat or very small jumps! The one i managed to get going kind of reliably took so many hours of modding, buying upgraded parts, plastic parts are weak, but the weakest part on these VRX cars ate the diffs! 💥🤕 Seriously, please consider something else, I know they look cool but they fail very quickly! I really don't want to be the one people blame for wasting their money by recommending a car that will fail indefinitely! Sorry again mate✌🤝
Hey Robert, I use Youme Power 3300mah or 4500mah 4s lipos, max I would use is 4500mah👌 And parts i get from ebay.au or a local rc store called Campbelltown hobbies near Sydney I think, if you can't find them under VRX parts lookup River Hobby parts👍
No good! I'm not sure in what way they are breaking for you but I think you can get a alloy version, definitely a handy upgrade👌 I don't think I've ever broken the saver itself but always loose the e-clips that hold the spring in place. And when you say "break in 2" do you mean the V shape parts on both sides or the actual damage you are seeing?
@@rccrazy the v shape parts its like there just glued together and split on me I've gone through 4 of them amd the alloy ones also look like there 2 pieces to anything I can do to stop it, it's not like I'm crashing it but if I'm bashing and It rolls over it seems to split at the v shape, cheers:).
Oh no mate, the split is there intentionally, definitely not supposed to be joined/glued together, that is the saver as it prevents the servo from stripping out when a wheel takes a heavy impact. So all 4 that you tried are still perfectly fine, hope you didn't bin them😬 There should be a spring on top and a e-clip holding the spring in place, if you add a washer or 2 it will tighten the spring if you think it's too loose.
@RC crazy hmm I think we're talking about the same thing cause when it's split on me my wheels won't turn because the saver is moving cause it's split so it's not grabbing
So if nothing is actually damaged but the 2 separate V pieces are separating too much (servo and half of the saver moves but wheels don't) the spring may be too weak and as I said you can add spacers/washer to stiffen it. OR you may have lost the spring and or e-clip. Sorry, it's very hard to diagnose without any visual.
Hey mate thanks for the vid. I just got the kit version of this truggy and considering what size motor to put in it. What size motor are you running in the middle one? 3674? 4068? Considering just having able to run up to 4s as I feel anything higher might simply damage the diffs quickly.
Oh no! All mine failed very quickly but I did manage to get one going almost reliably with the exception of the diffs(may as well be plastic gears) they are weak! Please, never attempt to run a 40 size motor, you won't have a car left when it comes to a holt! The only one still going has a 3670 2150kv 4s motor, Hobbywing WP-SC8 120A esc and a cheap 20kg servo, but it has cost me over $1000 to make it work, alloy swingarms, hubs, carriers, carbon shock towers and more witch are all needed eventually sorry to say, plus many 6061 and plastic DIY mods, a bucket of diffs and a bucket of shafts! So sorry but that's what I have experienced with my VRX cars, maybe stick to 3s with that car. So sorry mate!
@@rccrazy appreciate the honesty. No worries. I have a brushless system which as a 60a esc (3s capable) and 3650 4pole motor but someone said it's too small. Your thoughts?
Yeah it may be too small in the way of power, your car should last a lot longer but slow! I would suggest a 3665 or 3670 between 2700kv and 3300kv for 3s and you should be able to gear up with the lower kv motor, you will need a pinion with a 5mm bore hole for these motors, 18tooth pinion is the max that will fit without modding, maybe try a 15tooth 5mm bore mod1 pinion. Check temps just too be safe, if its cool enough try a 17tooth 🤞👍
Another great vid mate. Good stuff on explaining the different motors on the 3 VRXs. 👍🏼. Maybe do a similar vid on what gear ratios you are running in your 3 cars. Would like to know what pinion and main gear ratio you have. (I’m keeping you busy)!.lol Keep up the good work. Looking forward to the next one. And thanks for the mention . 👌🏼👌🏼🚗🚗
Cheers mate, the main gears are all stock size but the steel upgrade, I'm not sure if you can get different size main gears for this car, and they have stock pinions apart for the speed car, that is a 26tooth but you need to drill out the motor mount holes. I still have one steel gear to install so I'll try and remember to record it.✌
They don't need to be 6s esc unless you want to run 6s, I really suggest getting that Hobbywing WP-SC8 esc or a Max10 for 3 or 4s! I do mention in the description that I prefer to run lower kv motors with high gearing, go between 1900kv and 3000kv and largest pinion you can fit unless you feel like modifying the motor mount, you could run a 2000kv motor's of this size on 6s with the stock pinion gear not a problem! But if you do that make sure you got spare differentials😬 Make sure you get the right shaft size with the pinion gear!
@@rccrazy hey mate just reading back on this post. You mentioned you got a 26tooth pinion year. How the heck did it fit.?. Cos I just got a 19 tooth and I am right at the end of the slotted holes (top and bottom holes). , but will still need to drill it out. If you had a 26t, wouldn’t it be completely off the mount(sort of)? I’ve looked around for a wider adjustable motor mount, but they dont give you dimentions. Any advice?.
Great review mate 👍 I have a question for you ? your servo is different on the violence does that have a E clip I’m just so over this e clip can you recommend a good servo with its bits don’t want no E clip keeps popping out thanks heaps
Thanks mate, do you mean the servo or the servo saver? I've not seen servos with e-clips before🤔 I just use cheap eBay servos 20kg or higher! These are good for cheaper servos 20kg JX Metal gear www.ebay.com.au/itm/RC-Steering-Gear-JX-Metal-Gear-Digital-Servo-20kg-Torque-For-1-10-1-8-RC-Cars/153966741873?pageci=6514bbdf-de66-4de8-935c-c750f64f7782 25kg Austarhobby Metal gear www.ebay.com.au/itm/AUSTARHOBBY-AX8601-Digital-Servo-25KG-Waterproof-Metal-Gear-High-Torque/153966764778?pageci=43658c25-7cb0-4b07-b899-37b8b3e1dd4c
Yeah you're talking about the servo saver. You need to mod it! Get rid of the e-clip and replace it with a 5mm thick washer or strong plastic. It needs a 10mm hole so it goes around the steering but pushes the spring down!
Yes you can upgrade to brushless, mine were brushed originally. If you've not converted a car before it's rather easy, you really just need a brushless motor and esc as your already have a servo and radio system. If you get a motor larger than 3650 size which I suggest you do you'll also need a mod1 pinion gear suiting a 5mm shaft. My recommendations would be 1. A 3660 size motor around 3000kv (doesn't have to be exactly 3000kv) 2. A GOOD quality 80a to 120a esc, (Hobbywing WP-SC8 is my go to 120a esc) 3. And a few pinions for 5mm shaft, get a 13 a 15 and 17 tooth mod1 pinion. Start with the 13 tooth, if it's slow but motor is nice and cool you can gear up. If you have the same results(cool motor and not fast enough) gear up again. Repeat that process until your happy with it or the motor starts getting hot to the touch. Good luck👍
I get most of my stuff from Ebay Australia. Otherwise check Hobbiesdirect.com.au it's a great local online store and great people. If you need links for ebay they are easy to get👍
Good 100a esc www.ebay.com.au/itm/401784598230?chn=ps&_ul=AU&_trkparms=ispr%3D1&amdata=enc%3A1K-W5kD7eSc6-o4rGNAWWjA75&norover=1&mkevt=1&mkrid=705-139619-5960-0&mkcid=2&mkscid=101&itemid=401784598230&targetid=&device=m&mktype=pla&googleloc=9071421&poi=&campaignid=15984321586&mkgroupid=&rlsatarget=&abcId=9300814&merchantid=7617162&gclid=CjwKCAjwgqejBhBAEiwAuWHioE3M6xbk0s-jF0As7XPTq2mGagV30bs8AzLDcAkt8eLV57THmW0LohoCn-sQAvD_BwE These are awesome motors for the price but no Aussie sellers, this link is from Japan but a good seller👍 www.ebay.com.au/itm/334492749637?hash=item4de1524f45:g:pQYAAOSwPlZiwi0K&amdata=enc%3AAQAIAAAA0LY0%2FtzebzHvIhjXGWceI445UXN%2FY2aD1Ds2y6qghUCK0asx8Dx4xaYgOobTzNuie62Vo81%2B4DCH0gULSiGCu2eDoVXNL4rKu5nZapZheAmckzXhLucp4WDS8ayXX5UOq8ZZMuIEXs0Q1n4o%2FyPHXMmJzx0gSKxU3BsAvT3IIq6shnJFVWPP6uJkZXDsOe6G7LwPPefwUOw2GqKKTXr9hSV6YuY%2Forg8Co%2FuTdgdwPPQ0Adnc3S%2Fc7Ci91cvFOQukgrN5NYiQfFyExuvFSu9%2BLw%3D%7Ctkp%3ABk9SR5SkgIuIYg And you'll find all the pinions you need here www.ebay.com.au/itm/274627251859?chn=ps&_ul=AU&_trkparms=ispr%3D1&amdata=enc%3A1YdNFcEZGRg2MAeY1AeaSCA64&norover=1&mkevt=1&mkrid=705-139619-5960-0&mkcid=2&mkscid=101&itemid=274627251859&targetid=&device=m&mktype=pla&googleloc=9071421&poi=&campaignid=15984321586&mkgroupid=&rlsatarget=&abcId=9300814&merchantid=7364522&gclid=CjwKCAjwgqejBhBAEiwAuWHioKrcjEByrWvnpgm67UdYCwhSOioVTvsV0phsdmxCOWNrGaE6dHFTOBoCCB4QAvD_BwE
Hey Matthew👍 In most of my cars from 1/14 to 1/8 scale I use 500k in the centre diff if the car has one and between 50k-80k in the front and rear. The cobra I'd use 80k because any thinner and it seems to leak out quite quickly🙁 Hope that helps🤞
Hey mate, great videos.. I have a brushless cobra truggy, and have already broken the 'front piece' that attached separately to the main chassis.. its an obvious weak point and a flaw in the design.. however I was wondering where you got the centre braces from and if I could maybe purchase these.... thanks mate
Thanks mate👍 Yeah I broke 5 front chassis parts before changing to the alloy one, should have got it sooner! The centre braces are custom, I made them out of 6mm polycarbonate, not something you can buy, sorry🙏
This is my newest explanatory Cobra vid explaining in more detail, also I got some new parts since that vid you watched ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-6qOk_2L8vzo.html
@@rccrazy haha yeah I got the alloy one, not going to make the mistake of going through many plastic ones... Would you consider making and selling a brace? It is something I would definitely consider as you have done a good job of them