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HelicopterOff Topics › Help with 'Project Nascar'
08-06-2007 06:12 PM  10 years agoPost 1
Tommy Z

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Lubbock, Texas

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Hey guys,

My friend went to wal-mart and picked up this fisher price nascar ride-on
With the help of his dad, we're going to make it FAST. So far we've decided to put 125 shifter kart wheels for more traction. And now we're looking for a BEEFY brushed motor (maybe even brushless if he's willing to pay for it...He's funding the entire thing). We're also looking for some type of ESC. The 'speed control' it currently has, has one speed: GO. We were hoping to get two 12V ATV batteries and wire them to make it a 24V set-up. Is this possible to do?
My friend put me in charge of finding a motor, so I figured a starter for a car might work. Or a giant commercial fan motor. Here are some pictures so you can kinda get an idea of what dimensions we're working with.

On another note....What about outfitting it with model electronics? We still want to be able to ride in it, but would that be too tough on the system??

I should also add that we will ad another 'frame' to the bottom to make it take the extra abuse. What better place to come than runryder off-topics?

Oh and here is the video that inspired us:
http://youtube.com/watch?v=nD-nJS9gqp0
But we want it to be faster...

Take a look at this...This might be the way to go:
http://stratoskarts.com/parts.asp?c...CFUtyOAodhiOPlg

-Tommy Boy

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08-06-2007 06:34 PM  10 years agoPost 2
helo_chris

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goodlettsville, tn

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Some of the industrial guys here could probably give you a better idea where to get a motor that will work. But I can tell you a starter motor wont, they werent designed for long duty cycle or power. A motor from a dryer might work, if you can find an AC controller that doesnt require a couple hundred volts.

"There is a fine line between cutting edge and bleeding edge.."

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08-06-2007 07:03 PM  10 years agoPost 3
SSN Pru

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Taxachusetts

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I hope you are going to beef up the drive train because the existing one more than likely will not handle the increase in power.

I thought of doing that to a nephews 6 volt 4 wheeler. I decided against it cause he's only 15 months old!

Stupidity can be cured. Ignorance is for life!

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08-06-2007 07:03 PM  10 years agoPost 4
Topher

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Rochester, Michigan

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A motor from a power wheel chair will probably work best. Often many treadmill motors are DC powered and controlled. DC motor controllers of that size are generally rather expensive. You best bet would be to look for a powered wheel chair with motor and controller and rip it out as one unit. Also make sure what ever battery you use has a large enough C-rating.

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08-06-2007 09:25 PM  10 years agoPost 5
Tommy Z

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Lubbock, Texas

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Cool, thanks for the ideas

But I can tell you a starter motor wont, they werent designed for long duty cycle or power
I was afraid someone would say that.

You guys are getting me lost quick. What's the difference between AC and DC. I like the wheel-chair idea, I know those things are pretty torquey. Also, what about those batteries the electric on-road racers use? You know how they have those 6 cell packs?? What if I made like a 30 cell pack??

-Tommy Boy

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08-06-2007 09:29 PM  10 years agoPost 6
Dood

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Wescanson

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That sounds like a blast!!

It reminds me of a couple guys I know that beefed up a golf cart to do like 60mph. Of course, that was a gasoline engine, but damn that thing was fun!

About motors,
A green house fan motor might work. Most of the big fan motors I know, use a belt drive reduction. I don't think many of them generate much torque, so a belt or gear reduction might be the ticket. I think there are very few of them (if any) that run direct drive.

I'll try and call a buddy of mine. See what he says. He engineers large industrial fans for a company in Milwaukee.

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08-06-2007 09:33 PM  10 years agoPost 7
Tommy Z

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Lubbock, Texas

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Here are some pics of the tranny...

Might not need to be moded after all, check out those gears

-Tommy Boy

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08-06-2007 09:36 PM  10 years agoPost 8
Tommy Z

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Lubbock, Texas

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I know
We're hoping for a steady 30mph or so. When sitting on this thing, the CG is too high, because my butt has to be right in front of the spoiler So we don't want it to go too fast...But if it ends up going faster, no problem either.
This thing wheelied for me right out of the box.

-Tommy Boy

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08-06-2007 09:37 PM  10 years agoPost 9
helo_chris

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goodlettsville, tn

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I agree with Topher, didnt think of that. Power wheelchair would be your best bet. As for cells you could use a couple 12 volt batteries like the wheelchairs use or if you wanted to go all out and get stupid get some A123 cells. They set a speed record on an electric powered bike running A123.

My step dad took a pedal go-cart and put an electric motor from a barbie jeep on it. Get rid of all that plastic and those motors are actually pretty peppy. My mom wouldnt let my little sister ride it

"There is a fine line between cutting edge and bleeding edge.."

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08-06-2007 09:44 PM  10 years agoPost 10
Tommy Z

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Lubbock, Texas

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or if you wanted to go all out and get stupid get some A123 cells
That's it!! I completely forgot about the A123 cells
And they're kinda cheap, too. I bet my friend will like that idea. It's weird how I'm doing all the work here, as you can see...
Here's what it looks like with me on it:

-Tommy Boy

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08-06-2007 09:47 PM  10 years agoPost 11
Dood

rrProfessor

Wescanson

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There is a video on youtube where a guy welded together a chassis for his barbie jeep, put a fricken moped engine in it.

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08-06-2007 09:53 PM  10 years agoPost 12
Tommy Z

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Lubbock, Texas

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08-06-2007 09:56 PM  10 years agoPost 13
Dood

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Wescanson

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thats the one.
You did end up buying yourself a welder, didnt you?

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08-06-2007 10:12 PM  10 years agoPost 14
Tommy Z

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Lubbock, Texas

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Nope
It was getting too complicated and I really felt like it would be smarter to save the money for a motorcycle (which is very stupid of course ).
But my uncle here who built our dragstrip has a good friend who has a crap-load of TIG set-ups. I told him about all the stuff I do (like helis, and making stuff sooped up, etc) and he said 'well if ever you need anything give me a call and we'll work something out.'
So, I got lucky there

-Tommy Boy

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08-06-2007 10:33 PM  10 years agoPost 15
helo_chris

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goodlettsville, tn

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You really wanna have some fun, go find you a go-kart with a blown up engine. Toss the paper wight B&S motor and setup a 125cc Homd dirt bike motor. Then you are in for some thrills. Friend and I did that in HS, frame wouldnt stay together though so we gave up on it.

"There is a fine line between cutting edge and bleeding edge.."

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08-06-2007 10:57 PM  10 years agoPost 16
Tommy Z

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Lubbock, Texas

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Haha,

I would, but at the moment I'm cash-less. At least my summer isn't going to waste watching TV or playing video games.
Check this new steering set-up, looks almost like F1 style!!!


And here are some computer pedals that fit perfectly and are spring-loaded:

-Tommy Boy

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08-07-2007 12:30 AM  10 years agoPost 17
RobRoy

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Huntsville, Alabama

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looks like a fun project.

Ignorance is curable, stupidity is for life.

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08-07-2007 12:39 AM  10 years agoPost 18
quattrokid73

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Huntingdon Valley,​PA, USA

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what about a spa motor?

Aero-Model/Hacker Brushless/Mikado 2007

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08-07-2007 12:48 AM  10 years agoPost 19
Topher

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Rochester, Michigan

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You want to stay away from fan motors. They are designed for high torq at high speeds and can have strange power curves. What you are after is a good all around high torq curve. Something with consistent torq throughout the voltage and/or rpm range. The things you want to look for in a motor is a long can design, high single wire windings, a large comm. with large brushes, and of coarse something rated for higher voltage. A word of advice, go with the highest amount of voltage your motor and controller will allow. This will allow you to have higher efficiency and reduced weight but in some cases sacrifice the life of your motor.

A123 cells are a good choice if you have the money and a means to charge them. Just make sure you dont draw to much from or they will fail very quikly. If you want to go the NiMH route, I highly suggest SC2600 cells. They are cheap and an extremely durable cell. You can them at http://www.cheapbatterypacks.com or any high quality power tools such as dewalt.

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08-07-2007 01:06 AM  10 years agoPost 20
SSN Pru

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Taxachusetts

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how about just have 6 12 volt batts and just connect em up as you want speed haha. you could rig up a quick disconnect to slow down and then just fred flinstone out to stop!

Stupidity can be cured. Ignorance is for life!

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