Will this be worth it?
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BrownStainRacing
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BrownStainRacing
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Oh yea, I recognize the username now.
The powerwheels kid,
.You got your work cut out for yourself.
I wish you the best of luck,
.
Hellion
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That's because it's Black Friday (and all weekend I think)! You SCORED.
Go back and buy another if you have the money--get one before they go back to regular price.
Hellion
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The torque converter is probably overkill for this application, I mean honestly. How long is the drag strip where the race will be held? You can probably beat the other guy with just a clutch and straight-chain drive system, but it all depends.
Straight chaining it will be simpler and lighter and take up less room.
With so many different threads for each question you ask, I am quite lost and cannot keep up. In other words, I haven't seen anything actually being built unless I missed it. Oh well.
Straight chaining it will be simpler and lighter and take up less room.
With so many different threads for each question you ask, I am quite lost and cannot keep up. In other words, I haven't seen anything actually being built unless I missed it. Oh well.
12348910
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I understand that it could be confusing with so many threads but I have noticed with this site and others that after a few days people stop answering or it’s the same few people so in my mind I feel as if it’s better to start a new thread but not everyone has the same opinions. I will try to keep it to one thread since you guys have really helped me understand lots of things and you are some of the few people who actually can or decide to help me.
I haven’t really built anything yet because I have been busy with hunting, school, helping my parents, and work but I do plan on trying to start possibly this week.
I think I have asked this a few times and I don’t remember if it has been answered (not exactly sure though) but what should I do for the gearing and what speed would such gearing get me? I currently have a 10t clutch and a 48t sprocket and I am wondering what speed it could get me or if it would be better to go a different route. I got the sprocket for free and a clutch is only a few bucks but I can return it (it’s in-opened) if there would be a better option for the gearing.
ezcome-ezgo
G'me sumthin to write on
There are other specs to be considered: wheel size, kart weight. Generally a 6:1 ratio is ideal, but for drag racing and beating your elder relatives, some experimenting may be required.
12348910
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what is a 6:1 ratio Or does it depend on the wheel size and weight? I don’t really know how the gearing works so I’m sorry if this is an obvious answer
Denny
Canned Monster
10 tooth drive gear, 60 tooth driven gear.
60 divided by 10 = 6
6:1 ratio
For every 6 turns of the drive sprocket=1 turn of the driven sprocket.
Give a man a fish and he eats for a day.
Teach a man to fish and he drinks beer all weekend!
Oh my God! I’ve gone all Bob!
60 divided by 10 = 6
6:1 ratio
For every 6 turns of the drive sprocket=1 turn of the driven sprocket.
Give a man a fish and he eats for a day.
Teach a man to fish and he drinks beer all weekend!
Oh my God! I’ve gone all Bob!
12348910
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Thank you it makes a lot more sense now on how to find the gear ratio
ezcome-ezgo
G'me sumthin to write on
Sometimes drag racing isn't about what your calculated top speed will be as much as it is about how fast you get there. But paly around with the ratios until you find what you are looking for would be my advice.
12348910
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the power wheels is said to be 75lbs I weigh about 125lbs the motor is about 40lbs the wheels I plan on using probably add an extra 5lbs so that would be 245lbs. What would be the lowest gear ratio that I could use but still be able to get a good start off the line. I understand you said to experiment but I’m just asking since many of the people here have built go karts so they may know a few things and I also don’t want to spend a lot of money and time trying to keep experimenting.
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Hellion
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Generally speaking, that TAV is so worth it. Especially at that price. The genuine Comet Torq-A-Verters are expensive (about 4 times the price of the one in your ad) but these knockoffs are quite a steal. That may be the cheapest price I have ever seen, at least posted on a forum.
Go ahead and buy it. If it somehow does not work out, you will have one and can use it on another kart or minibike.
Hey man, he's underage. Don't be a corrupting influence ....like this emoticon.
Go ahead and buy it. If it somehow does not work out, you will have one and can use it on another kart or minibike.
Hey man, he's underage. Don't be a corrupting influence ....like this emoticon.
12348910
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Will a 3:1 ratio work? the power wheels is said to be 75lbs but I’m sure it will be a little lighter when I’m done, I weigh about 125lbs, the motor is about 40lbs, and the wheels I plan on using probably add an extra 5lbs so that would be 245lbs. If 3:1 wont work, what would be the lowest gear ratio that I could use but still be able to get a good start off the line.
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Denny
Canned Monster
3:1 is considered a high gear ratio. 6:1 is a lower gear ratio. Confusing I know, but it’s the way it is, correct terminology. Low gear ratio = faster acceleration but lower top speed. Higher gear ratio = slower acceleration but higher top speed.
panchothedog
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Your calculations look about right. I didn't run them out, but 25 mph is about right for a stock kart with the governor still in place. What is the distance of your drag race? If the tires on your Barbie car are hard plastic like most, then traction is going to be a problem. You need to get some rubber on the road. Your running weight should be on the light side. Every vehicle has a driver, and every engine, predator, honda, briggs, ect in the 200 cc range weighs about
40 lbs. I would imagine that you will get rid of the battery and electric motor, so you should be able to get the bare vehicle weight lower than that of a go kart.
That could help with the gearing. You might be able to get away with 4.8 to 1.
If your opponent is running electric, he might be faster off the line but run out of
steam shortly after. That's why I asked how long the race is. The longer, the higher you can gear your kart. Chances are you won't get it perfect on the first try. Argue for more time while you wait for a bigger or smaller sprocket to arrive.
40 lbs. I would imagine that you will get rid of the battery and electric motor, so you should be able to get the bare vehicle weight lower than that of a go kart.
That could help with the gearing. You might be able to get away with 4.8 to 1.
If your opponent is running electric, he might be faster off the line but run out of
steam shortly after. That's why I asked how long the race is. The longer, the higher you can gear your kart. Chances are you won't get it perfect on the first try. Argue for more time while you wait for a bigger or smaller sprocket to arrive.
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