Worlds Fastest RC car record
 

Well i'm using a Corally RDX chassis with 3pk & Spektrum module (hopefully)

I need suggetsions on THE highest KV brushless motor and an esc to handel that on 10-12 cells

it'd be nice if you could sponsor me monstor mike =)

You will not break the speed record on 10-12 cells unless you mean Lipo cells?

I think it was 121mph and it was a chassis packed with cells.

Brushed as well..

111 on a brushless is the record 24 .75 volt cells that's 18 volts

but i can hit 90 with a fieago 6s on 8 cells geared correctly so if i add some more cells i can hit higher speeds and since it's a straight i can have it over geared so i THINK i can hit 110

how many cells can you use on a 6s and what controller hsould i use?

oh yeah btw i'm not trying to beat the record i just want these people to sponsor me so i can get free stuff
like a 3pk spektrum system and a corally car

You are very welcome to this forum, but please do understand, we are not here to sponsor one mens ideas.. (not to be rude)

I'd like to have a dual 2240 with 24 cells each too....

Meanwhile, back on planet earth every actually has to pay for everything they want. Your dream might be nice, but I think its a bit hopeful....:p

u.u it's been done

What do you mean?

The fastest motors would probably be the Lehner ones. But speed is somewhat equal to the number of watts that the batteries can dish out. 12 cells can only output 1200 watts PEAK. This may/may not be enough. But I would bet that it isn't. The more powerful Lehner motors are rated for extreme wattages, and will require a lot from the cells. So, "Speed costs money. How fast do you want to go?" Of course if you want to be sponsored, then good luck. I doubt you could get a motor/setup this expensive for free.

people have gotten completely free RC car and setups

Well. i don't doubt that.. But they sure invested a little more time than saying that they needed to be sponsored to get the fastest car..

Mike, who is the owner of this forum/shop happens to be an RC addict as well.. He likes some speed too.. but he also has fun driving his own cars..

Mike can sponsor you by getting the stuff you need (not for free) and we all can sponsor you by helping you to choose your setup..

How does that sound? sounds like a good deal to me!

Could lipos take that kinda abuse at 110mph or would nimh be better for speeds that high?

Lipoly would be my choice.. The weight/energy ratio of lipoly is better. considering that, you're able to deliver more power on the same weight. (or the same power with less weight)

li-po can't handel the amp draw and would pop

The more cells, and the higher voltage you pack in there, the less amount of amps each cell has to dish out. Your probably looking at around 1500w peaks to break 100mph.

For the record there are packs out there that will handle just about any reasonable amp load without any problems. Koham 3200 20C's are one type of cell that handle large amp bursts. A 7-8 cell pack of these might get you close to what you want on the right motor. Your talking lots of $$, and in this day and age I don't see you getting these packs for free.

Btw with 8 nimh cells your not getting 90mph with your 540 6s. I have one, I run it on 8 cells often, it can get a fairly light car upto around 65mph, but no more. Any more than 8 cells on a 6s will probably kill it pretty quick.

I seen a lipo with a discharge rate over 100 amps continous not peak.

I would guess you would need a fair bit more than 14 cells!

To get a higher discharge rate out of Lipos, you parallel them. This is something that you can't effectively do with NiMh, but is one very good aspect of Lipoly. You could have a Lipo pack deliver 500amps if you wanted, assuming you had the wires to do so ;).

I'm not showing off by any means, but if you look at the people who were looking for speed records, I am one of those wierdos, and I once posted a thread in this forum that is named : My dream E-Maxx, just to make my friends over here have a picture of the Captains mind. The E-maxx of my dream has always been a full aluminum/ titanium/ steel truck all over with a ceramic bearing kit and two Schulze 40.160 each one is worth $ 600+ and each one would be coupled with a Lehner 2280/9-10 turn motor and each motor would be fed atleast by a 10+ cells li-polies. This is, but a dream of mine that would cost me at least a $6000 and I would not ask any people to sponser me, because they simply cannot sponser me and because they need to sponser themselves first. The RDX will not tolerate the extreme torque of a brushless motor at a high cell counts, since the belts will wear out faster than you may think and they will slip alot during accelerations and brakings. The 4wd that was used to accomplish a 96mph speed record is a shaft driven touring car. The motor was a reedy Sonic with cobalt magnets and 12 turn rotor. My guess is that if the car used a Neodym brushless motor at 16.8 volts it would not stand the power and what you will get is a bent center shaft and worn out crown gears. The brushed motor went easy on the transmission system, since it is a precision liteweight system designed for 95-190 watts rated motors. If you want to reach 100 mph, then go for a pan car like a rc10l3 or go for a 1/8TH scale onroad machine like a Mugen MRX-4 and convert it to an electric car using a 500 size brushless motor, at least 10turns and a 3295 controller supported by 10 cells lipos. This is only a point of view I wanted to share with you so dont take me wrong if I said something awful. Cheers.

I like how you think captain. That would be one awesom emaxx. I would like to see one 2280 with 10 cell lipo.

Where's Promod?

8s lipo and xl2400 will take a well geared and tuned emaxx to 60 mph...

I haven't been very active of late, but later this fall, I'm gonna go do more speed runs for you guys.

It has been a while lipomax. I'll be doing my own speed record very soon.

A buddy of mine MIKE BOYLAN he puts on the snowbirds every year. At one time he had the world record 95 miles per hr. He was using a 9 turn hand wound mod with 10 cells & a associated pancar in a veladrome.

sounds like you didn't took anytime to invest in this project...

Like i said, the energy desnity is much higher with lipoly, it's not about the power of your setup, it's about the power of your batteries..

10000 mah thunder power lipo, 4 cells= 460+ dollars, but you will get 120 amps discharge from every two cells and 30+ minutes of runtime. This is IMO the ultimate lipo packs available.

Also a slight detail on sponsoring, the only way to get sponsord is in competition. You have to proof yourself first to a company that you can drive good in order to get free stuff. Do not think everyone can get anything for free trying to break a speed record. That's just unreal and you won't find anyone stupid enough to do this.

So my advise is, save every penny and break the record yourself. Then you got something to be proud of. I would not be impressed if your car goes 130 mph on free part's, big deal, anyone can do that.

To kind of go along with what Sneeck is saying, once you break the speed record, THEN you may get sponsored. But before then, I could only wish you good luck and happy saving :).

"
I need suggetsions on THE highest KV brushless motor and an esc to handel that on 10-12 cells"

It happens NOONE answered my question! Everyone just BASHED my ideas maby it was a big mistake signing up here and even posting it because your all bitches and NOONE even welcomed me to the forum all the answers I got were "It won't work" and "you can't get free stuff"

so i thaught this might have been a good idea signing up here but oh well

btw i changed to a team CRC CarpetKnife

Oh really?

Well, we are just pointing out the truth when we said that you likely wouldn't get sponsored. This is just too expensive of a hobby for companies to be giving away $200+ things to people that are *trying* to go fast. What would happen to the company if you didn't hit your mark? If you manage to break the speed record without sponsorship, some companies would be more likely to sponsor you.

We didn't mean to be rude, but only to tell you what we consider to be the truth.

You really dont need to get mad like that. We've only wanted to put out our point of view and share our ambitions with you, however, if you want some real speed record then go for the Lehner 1930/4 motor with 20150 controller and 12 cells. This will carry you up to the world of speed you're loaning for. And you are always most welcome here.

@ doah.

Perhaps we got off on the wrong foot,

But the fact that you started this thread with asking for free stuff, just out of the blue, probably got me on the wrong foot too. If you want to have it for free, what's the use of explaining what motor to get? because it's not going to happen. I was starting with the batteries, (which are much, much more important than a motor, because with improper batteries a BL motor can't preform. those lipolys was a no-go in your own opinion, because lipolys, you said, didn't have the potential..

I thought, when you can make certain statements, and not even replying my posts, then why on earth should i boughter? i am willing to invest time in anyone here on this forum, but it must be a two way communication.

On this board i am not used with people asking for free stuff, they only come here for proper advice.

But to give you an answer on your question;

the 1930/5 (hiamp) would get my vote. it may run at 65000 rpm (hiamp version) his kvrange of 4184rpms makes it able to power it at high voltages. The controller i advice with this little powerfull thing is a 20120.. But we won't give it to you.. You need to buy it.

If you ask Mike, i'm sure he is willing to arrange something with you, but it certainly won't be for free..

I would like to have a reply on this post by you Doahh.

Would anyone else please keep their peace untill Doahh replies?

Yes i under stand it won't be for free
Thanks for that motor/esc suggestion and i might be using an HV-Maxx on it's 14 cell limit and that gives me 73920 RPM's

Batteries i'm probably using some king of GP 33/3700 batteries matched/zapped and at 1.19 volts

I'm also probably going to build a bump box so that i don't loose voltage climbing up this stupid 3 story camera tower
I'd have someone i know run out with it clip on the clips and get that pack back up to it's whatever volts

Sorry to burst your bubble here but a hv maxx won't get you anywhere near the speed record. You'd need something with more powah. And some lipo's.

I hope it works out for you doahh. Keeps us posted. Remember though. Things on paper don't always work in the real world. If you know what I mean. Good luck.

"Sorry to burst your bubble here but a hv maxx won't get you anywhere near the speed record. You'd need something with more powah. And some lipo's.
Signature"

THis motor has more RPM's AND torque so i could overgear it more.

used to moving this:
Weight: 8.3 lbs (3785g) without batteries

when now it's moving a 1.5 pound car without batteries

lets say the 14 cells weigh 3 pounds
The HVMaxx system moves this 11 pound thing at 60 mph with the right gearing

Now it's moving a 4.5 pound object and it could be way over geared because these are just short speed runs and this weighs less than half as much as the motor system is used to

@doahh, please do understand that this KV range of the hvmaxx is without any load.. the voltage will drop too.. It will not run at that high RPM, a light emaxx weights about the same, and the absolute topspeed of that hvmaxx is limited, due to the 450 watts it is able to push out..

Get a 8XL and a 9920 for the same price, and you are able to throw out 2000 watts.. Go figure..

Sneeck wasn't very polite in his reply, but his meanings are good.. ;)