Project:UberFast 18R

[THE EDJ]

I don't really have anything to new or exciting to share about my 18R than what I have in other threads, but I figure I might as well throw it all in one thread so here it is. Modifications to date include dean's plug swap, carbon fiber driveshaft, and a Tekin Rage 5.4 kV brushless system with tunable speed control. One major performance upgrade doesn't seem like much, but as you will see it has made all the difference in the world.

Future plans include 3 cell 11.1 Li-po batteries, and maybe a completely adjustable custom engineered and designed chasis if my school will let me do that as a final project next semester... look for materials such as carbon fiber, aluminum, and maybe titanium if i'm feeling rich. Anyways, heres some pics and vids of the car as it is now. enjoy.

close up of the motor (i have since removed the fan)
http://i134.photobucket.com/albums/q107/EDJ_RIDER/1-1.jpg

look at the carbon fiber driveshaft
http://i134.photobucket.com/albums/q107/EDJ_RIDER/3-1.jpg

just the chasis
http://i134.photobucket.com/albums/q107/EDJ_RIDER/4-1.jpg

the money shot
http://i134.photobucket.com/albums/q107/EDJ_RIDER/5-1.jpg

it even looks fast sitting still
http://i134.photobucket.com/albums/q107/EDJ_RIDER/6-1.jpg

and finally a few vids.

Disclaimer:
if swear words offend you, theres one in the the third video so turn the volume down.

http://i134.photobucket.com/albums/q107/EDJ_RIDER/th_100_0596.jpg (http://s134.photobucket.com/albums/q107/EDJ_RIDER/?action=view&current=100_0596.flv)
http://i134.photobucket.com/albums/q107/EDJ_RIDER/th_18RCloverBowl.jpg (http://s134.photobucket.com/albums/q107/EDJ_RIDER/?action=view&current=18RCloverBowl.flv)
http://i134.photobucket.com/albums/q107/EDJ_RIDER/th_18RFullPipe.jpg (http://s134.photobucket.com/albums/q107/EDJ_RIDER/?action=view&current=18RFullPipe.flv)

[mini-z drift]

In the 1st and 2nd vid. your like the new Darkend blades *sorry Dark*.
But **** that thing is FAST!!!

[Sweed]

The skate park is no place for a car.. Get a Truck in there. Looks like it would be fun with a MC-T.. But mine wouldn't be able to handle it. The steering keeps popping loose..

[snowboi1289]

that sounds so good for electric rc car,i wish i had some more money to buy 1 like that..

[THE EDJ]

The skate park is no place for a car.. Get a Truck in there. Looks like it would be fun with a MC-T.. But mine wouldn't be able to handle it. The steering keeps popping loose..

that clover bowl is the only place i can get the car going its fastest with out it going out of range, the full pipe was just to see how much abuse the car could handle

[texan_idiot25]

What kind of diffs are you running. Im haveing a problem keeping ball diffs together with two motors in the propulse. Melted a RC18 diff a few days ago when the superglue locking it together failed. But I have a lot of spare propulse diffs thankfully, lol.

[REDisFASTER]

Tekin ESC! Nice! You've got the cleanest wiring of any small-scale R/C I've ever seen! Nice work with the heat shrink!

[Sweed]

I like the rims on the Gen1, we're you get them? Are they Top Cad rims? Looking good. XI's Chassis? How much does it flex?

Oh, yah. The Buggy/Car looks pretty cool. I think it's too plasticy (the Revo has so much blue!) and stuff.. But it looks good... Time for you to go Dual BL..

Tekin ESC! Nice! You've got the cleanest wiring of any small-scale R/C I've ever seen! Nice work with the heat shrink!

How's this, or is it too small?

http://i21.photobucket.com/albums/b290/sxysweed/HPIM2698.jpg

[REDisFASTER]

****... Very impressive! You can have the "sub-1/18 scale" neatest wiring award!

[THE EDJ]

I like the rims on the Gen1, we're you get them? Are they Top Cad rims? Looking good. XI's Chassis? How much does it flex?

Oh, yah. The Buggy/Car looks pretty cool. I think it's too plasticy (the Revo has so much blue!) and stuff.. But it looks good... Time for you to go Dual BL...

The wheels are topcad pieces from rcmart, and that chasis is my custom designed spyder chasis, theres a thread about it somewhere. i only made one and i'm not making another anytime soon.

I actually like the plastic, it's more resilient than aluminum, at least what i put it through, and cheaper to replace too when it breaks.

dual BL?

[superinfinity]

NICE. just to think i sold mine:nodno:

[Donziikid]

Very impressive. Personally, I wouldn't want to own one of their stock bodies because they're way to boxy for my opinion..but the chassis is a great design. Also, the price for a stocker ain't half bad.

Impressive, to say the very least.

[darkendblades]

In the 1st and 2nd vid. your like the new Darkend blades *sorry Dark*.
But **** that thing is FAST!!!

oh heck yeah but no one will beat me in how bad i will destroy my xmods when i get bored

[THE EDJ]

the third vid was the only one that did any damage, it broke one of the control joints on the rear suspension on that last HUGE fall, that was from over 20 feet high. thats it, no other damage. so all things considered, its a friggin tough little chasis.

[texan_idiot25]

Ill ask again.. what kind of diffs are you running?

[THE EDJ]

Ill ask again.. what kind of diffs are you running?

sorry man, just the stock ones, haven't given me trouble so far

[texan_idiot25]

sorry man, just the stock ones, haven't given me trouble so far

Allright, thanks. Ill have to try some RC18 diffs. I cant keep mine locked in the rear, slips too much from the dual motors.

[taiwanesekid05]

money shot?... er... would the 18R still make that annoying screaming noise if it was stock?

[texan_idiot25]

That is the scream of a brushless setup

[THE EDJ]

money shot?... er... would the 18R still make that annoying screaming noise if it was stock?

dang noobs... keep it down i wanna hear the scream of my brushless setup

[Stampedekid]

dang noobs... keep it down i wanna hear the scream of my brushless setup

lol, i like the noise. my PP's scream isnt as loud, but it still sounds cool. it tells you that it runs. unlike those crappy rcs

[texan_idiot25]

lol, i like the noise. my PP's scream isnt as loud, but it still sounds cool. it tells you that it runs. unlike those crappy rcs

Man, despite the crap-run times (solved if you have a fast charger :p ), the dual motor kit makes these little things insane. Spend time getting the mesh perfect for both motors, and theres next to no parasitic drag from the 2nd motor, and insane torque... Ill post how mine is currently later.

[Sweed]

dang noobs... keep it down i wanna hear the scream of my brushless setup

Scream? What? BL is supposed to be quite, so you're doing something wrong..
If you want a car that screams at speed, go nitro.

[texan_idiot25]

Drive train scream?

[THE EDJ]

Scream? What? BL is supposed to be quite, so you're doing something wrong..
If you want a car that screams at speed, go nitro.

different kind of scream, friggin people take things too literally. not sure who told you brushless is quiet, but they were wrong. its not overly loud, but it does make a different noise than a brushed motor. nitro is a waste of money in my opinion, but we arent going to go there because its my thread and i said so.

my drive train is nice and clean, it gets pulled apart fairly regularly to check for dust and debris in the gear boxes.

[taiwanesekid05]

sorry for asking this question (i'm not into super hobby grade stuff) what's a brushless setup? what power benefits does it have? what's it's puropse? pics?

[THE EDJ]

a brushless setup is a different style of electric motor. i'm not a hundred percent sure, but i'm pretty sure it works on an A/C circuit, as opposed to the standard type of motor which uses a DC current to run the motor. The setup requires the motor and an ESC that is made for a brushless motor. If you look at the pics in the first post of the thread you can see three wires coming from the motor compared to the normal of two wires for a standard DC type motor. I can't tell you what all the wires are for, but one is (+), one is (-) and I'm not sure exactly what the other one does besides allow an alternating current to run the motor.

A brushless motor has no brushes, duh... thats where it gets its name. This allows the motor to spin at a faster rate simply because it does not rely on the mechanical connection between the brushes and the armature of a traditional motor. Less friction, less obstruction, equals faster RPM's and loads more torque.

So it's basically the best type of motor you can put in one of these things, and you get all kinds of extra speed and torque.

[Sweed]

Too (****) lazy to read the thread...

1.) This is an AE, right?
2.) And it's Buggy Based, right?
3.) And, do you know anything about X-Ray's M18 Series?

[THE EDJ]

1) yes it is an AE
2) it's based off their RC18B/T chasis. the only major difference is the length of the a-arms, suspension components and dogbones to get the more narrow wheel spacing.
3)not a thing

[Sweed]

Hm.. Before I was thinking of getting a X-Ray M18, becuase the suspension is SO nice, but I'm thinking of finding a roller 18R and going BL with it...

1.) Is the motor you have Sensored or Sensor-Less?
2.) And by 'Tunable-ESC' what do you mean like the Mamba, change everything?

[THE EDJ]

1) not sure what you mean by sensored or sensorless, so you're going to have to elaborate on that a bit.
2) the ESC has seven pre-programmed throttle profiles as well as programable braking profiles so you can change how quickly the car accelerates and brakes. theres also a few reverse profiles to choose from if i remember correctly, but i never screwed around with that. The guy at LHS said that Mamba was crap compared to this system, but I really wouldn't know from experience since this is the first brushless system i've ever seen/used.

[Sweed]

1) not sure what you mean by sensored or sensorless, so you're going to have to elaborate on that a bit.

The motor only has three wires right? There's two varietie so of Brushless Motors. Sensored Motors, and Sensorless motors.

Sensored motors have a sensor that detects were the armeture and feeds that info to the ESC. There is ussually a few extra small wires from the motor, apart from the main three.

Sensorless motors have no sensor, and use the electric current genorated by the coils as the magnet passes (Generator-type Effect) by the coils. The ESC Reads this and determines were the armeture is.

I belive you have to have Sensored motor to compete in ROAR-Sponsered Compitions. There's a debate on which type is better, though.

2) the ESC has seven pre-programmed throttle profiles as well as programable braking profiles so you can change how quickly the car accelerates and brakes. theres also a few reverse profiles to choose from if i remember correctly, but i never screwed around with that. The guy at LHS said that Mamba was crap compared to this system, but I really wouldn't know from experience since this is the first brushless system i've ever seen/used.

How good is the torque on that motor? Like do you have really high-grip tires, or can it spin the tires when sitting still?

[THE EDJ]

i have a sensorless motor then, didn't know there was a couple different types of brushless systems, but thats cool. any major advantages to running a sensored motor?

[Sweed]

i have a sensorless motor then, didn't know there was a couple different types of brushless systems, but thats cool. any major advantages to running a sensored motor?

I don't own a BL system (yet..) but from what I've heard they're good on the low end. People say Sensor-Less Motors are quite rough on lower RPM's, but that's just what I've heard...

Just saw your in Calgary.. My mom went there on vacation and for a Confrence (She's a doctor). I saw the pictures. Beautiful place, the confrence was at a castle or something, and they stayed in like a Cabin. Really nice, I would love to go there someday..

[RedSXmodder]

The sensorless motors are IMHO crappy for low-end RPM. Thats why I decided not to use the Mamaba on my crawler. The Mamba tended to pulse on 1/4 and less throttle.

Later,
RedSXmodder

[THE EDJ]

I don't think i've encountered this so called "pulse". my BLS seems to have very even throttle control throughout the throttle input range, i've never noticed that it pulsed at low RPMs, it seems like a really good system, and I love the way it performs. here's a link to the manufacturer's site:

http://www.teamtekin.com/minirage.html

[THE EDJ]

I splurged today... it's fast and it breaks wheels. Probably goes like 45 mph. Just outright silly.

http://i134.photobucket.com/albums/q107/EDJ_RIDER/battcharger.jpg
http://i134.photobucket.com/albums/q107/EDJ_RIDER/battspecs.jpg
http://i134.photobucket.com/albums/q107/EDJ_RIDER/brokefrontwheel.jpg
http://i134.photobucket.com/albums/q107/EDJ_RIDER/brokerearwheel.jpg
http://i134.photobucket.com/albums/q107/EDJ_RIDER/lipoincar.jpg

gonna need some alloy wheels!

[jabari]

****mmmmnnnnnnnnn!!!!!!!!

[THE EDJ]

you have no idea, I have never seen an R/C (nitro or electric) go this fast.

[superinfinity]

lolz. My RC18T goes that fast. Plus my 18T body is painted red with black fade into the rear. I'm only running 6 cell too. :p

EDIT: don't get alloy wheels, your just adding more rotating mass. More rotating mass equals less top speed. if anything get the aluminum hub carriers. I know these thing like they were on the back of my hand just yesterday. i really know what im doing. Don't forget, i race these:roll_eye:

[THE EDJ]

what are you running in your 18T? And how do you know it goes as fast as my 18R? And with this much power, alloy wheels won't slow it down too much. The plastic ones broke when the car rolled doing speed runs up and down the street... Speaking of which does anyone know if the 18T wheels are the same size as the 18R wheels?

[Donziikid]

EDIT: don't get alloy wheels, your just adding more rotating mass. More rotating mass equals less top speed. if anything get the aluminum hub carriers. I know these thing like they were on the back of my hand just yesterday. i really know what im doing. Don't forget, i race these:roll_eye:

Pics? Trophies? Cars/Chassis? If you race, you can't forget to showcase. :nod:

EDJ -- Looks great, that LiPo shall suit your needs well. When you get new alloy rims, what are your plans for rubber? Stock, or something new?

[superinfinity]

i got a pic of my car. Posing with a hot Babe!

http://www.mediafire.com/imgbnc.php/b32ae445cc5fc9a16c24126be156ff242g.jpg (http://www.mediafire.com/imageview.php?quickkey=bmy93i2941z&thumb=4)

Well, that is the closest thing i got to a hot babe. lol

My 18T is running mamba 8000. I've owned an 18R too. The 18R tires are smaller i think. for oil, use 70 Wt front and 40Wt rear. i love this setup. My car blasts down the street and handles great. for my racing stats, go here: http://www.galaxyhobby.net/standings.htm. I'm Jack BTW

[Stampedekid]

hey SI, hows the mamba. should i just but a rc18t and go brushless, or get nitro. i already have a PP, but its a liability. EDJ, it just looks like the tires separated from the rims

[superinfinity]

mamba is great! it's so fast and reliable, not to mention small. i definatly reccomend the 18T. just an incredible little car!

[THE EDJ]

hey SI, hows the mamba. should i just but a rc18t and go brushless, or get nitro. i already have a PP, but its a liability. EDJ, it just looks like the tires separated from the rims

definately seperated the tires from the wheels, in fact one of the wheels is now in 3 pieces, it blew apart when the car rolled earlier today. I went to the LHS and picked up some RPM 1:18 wheels, which should be able to handle the repeated abuse they are going to receive and be lighter than alloy. If I can get the wheels mounted I'll try to do a video and see if i can get a good high speed run in.

[Stampedekid]

oh ok. i didnt see the wheel, or was it not in the pics. must be pretty wicked fast

[supraboi97]

is it still a project because it seems to be going really fast as it is looks pretty sweet too

[THE EDJ]

I butchered the body a while back and added some 1:10 wheels that I know are not going to break on me. Videos of the aftermath:

http://i134.photobucket.com/albums/q107/EDJ_RIDER/th_dubs006.jpg (http://s134.photobucket.com/albums/q107/EDJ_RIDER/?action=view&current=dubs006.flv)
http://i134.photobucket.com/albums/q107/EDJ_RIDER/th_dubs005.jpg (http://s134.photobucket.com/albums/q107/EDJ_RIDER/?action=view&current=dubs005.flv)
http://i134.photobucket.com/albums/q107/EDJ_RIDER/th_dubs004.jpg (http://s134.photobucket.com/albums/q107/EDJ_RIDER/?action=view&current=dubs004.flv)