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Thread: World's Fastest RC Car Challenge

  1.  
    Hey if I had alot of money i would try to get the 3 horsepower moter into a gt4 and put an rb innovation supercharger on it then get a 3 speed and boost botle with exspansion chamber!!
     

  2.  
    Guess what, I just barly started my car today. So far i have an aluminum 2mm rear chassi plate " It is going to have maltipule bars and plates," and the rear dive set up is well getting setup..... It may sound strange but im going to be running 2-3 eletric motors, not sure what type or how many yet, On my plans i have it all rigged up with 3 but thoes are plans.

    Mgs dude.
     

  3.  
    Mgs9, sound neat man. Listen to my idea.

    I will be running on a carbon fiber chasis, using a hand made speed control that I developed. I will be using a nice set of Delco Fab 4 rear drive axles, a New Munson 2 turn hydrogen electric motor. Put'n out about 102,000 RPM's My trani will be a solid standard shift (hand made) this thing will be an amazing beast.

    Nah i'm just fool'n. Im actually gunna stick to a stock set up, with stock bearings, wheels and rims. But I am gunna have a very odd drivetrain. I'll tell you about it later, once i master this design.
     

  4.  
    StevePond Will the track be treated like with salt water or something to give better traction? There will be a lot of people using dragsters and they usually treat the surface when they run. How will this be handled?
     

  5.  
    Join Date
    05-04-2004
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    SC, USA
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    I've heard of tracks being treated with sugar water, but not salt water... does salt water increase traction also?
     

  6.  
    Join Date
    03-20-2003
    Location
    Vancouver Canada
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    i wouldnt think salt water increases traction, it would probablt decrease if any imo. i am pretty sure once saltwater evaporates its the salt powder left behind, so itll be like running on a dusty track.
     

  7.  
    I dont think salt water would give it less traction. I dont think it would create enough dust to realy matter. I know when salt is left in water it will build and from crystals after a bit. We did an exeriment on it in like 5th grade. But that could give it traction if absorbed into small holes in the tire. I dont know if that would happen or work but its a thought. I was looking to on some sites hopping to find what they do use on the drag strips. No luck though.
     

  8.  
    I am not sure why I wrote salt water sorry - I forgot what I meant to write down. But they put something down, I forgot what to make the ground sticky. The allows the dragsters to stick to the tarmac and they just lay into the throttle and go and not just sit there and spin the wheels.
     

  9.  
    Join Date
    06-23-2004
    Location
    Austria
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    275
    Quote Originally Posted by studysession
    I am not sure why I wrote salt water sorry

    It is a white cristal like salt ... but it is sugar that make sticky the track in the most simple/accesible way

    e_lm_70
     

  10.  
    Cool -

    Still want to know what StevePonds input on handling this is. I am thinking of doing some testing with an RC dragster. I have never had one before. A company may send me one for testing to see if I like it or not. If it works - I would want to know what is going to be done for this at the track in CA when we show up.

    Keith H
     

  11.  
    Join Date
    07-04-2004
    Location
    Naperville, IL
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    3
    I don't know about tracks where you run, but at the Chicagoland/ Route 66 Drag Strip, I have seen the drivers use regular bleach in "bleach boxes". After they pour the bleach in the marked off area, they lock the front brakes and do a burn out (spinning tires in the bleach solution) This heats up the tires and it's compound to make the tires "stick" better off the line. I've never seen them do anything to the racing surface other than blow the tire dust off.
    Otis
    " I chase my dreams today, for tomorrow may never come."
     

  12.  
    my car 103mph
     

  13.  
    Join Date
    02-27-2004
    Location
    Sunshinecoast.Australia
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    4,213
    Quote Originally Posted by StevePond
    Sure, I could bring it along. I plan on building another car, so maybe someone else can drive the HPI.
    MR POND I would Fly All the Way from Australia for that Opportunity And I would Not Be afraid to Put the SPANK Down on it either....*Gets on Knees In a Preyer Position*....lol...
     

  14.  
    Quote Originally Posted by RaceFreak
    my car 103mph
    What kind of car do you have?
     

  15.  
    Join Date
    07-18-2002
    Location
    Jackson TN
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    80
    when is the date set that this is gonna happen?????????????????????????
     

  16.  
    Quote Originally Posted by jnorris52
    I don't know about tracks where you run, but at the Chicagoland/ Route 66 Drag Strip, I have seen the drivers use regular bleach in "bleach boxes". After they pour the bleach in the marked off area, they lock the front brakes and do a burn out (spinning tires in the bleach solution) This heats up the tires and it's compound to make the tires "stick" better off the line. I've never seen them do anything to the racing surface other than blow the tire dust off.
    Otis
    " I chase my dreams today, for tomorrow may never come."
    Bleach makes lots of smoke but does nothing to increase traction. Traction is increased by using "VHT" which is traction compound. VHT is very expensive and is often cut with alcohol to make it go further, though I doubt RT. 66 is skimping on anything. The VHT is sprayed on the track surface with either a garden sprayer or in RT. 66's case they use a tractor with a sprayer on the back. Usually only the first 60' or so are sprayed, but when the big boys come out to play(top fuel, funny car, outlaws) they will often spray to half track. When VHT sets up it will almost suck the shoes right off your feet. It would be interesting to try it on an R/C track but I bet there would be so much friction the cars would flip right over if they could even get moving.
     

  17.  
    Join Date
    05-10-2004
    Location
    Albuquerque, NM
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    Quote Originally Posted by izzyz28
    Bleach makes lots of smoke but does nothing to increase traction. Traction is increased by using "VHT" which is traction compound. VHT is very expensive and is often cut with alcohol to make it go further, though I doubt RT. 66 is skimping on anything. The VHT is sprayed on the track surface with either a garden sprayer or in RT. 66's case they use a tractor with a sprayer on the back. Usually only the first 60' or so are sprayed, but when the big boys come out to play(top fuel, funny car, outlaws) they will often spray to half track. When VHT sets up it will almost suck the shoes right off your feet. It would be interesting to try it on an R/C track but I bet there would be so much friction the cars would flip right over if they could even get moving.
    My lhs old track used to be coated with lots of vht. It was really grippy. The 1/10th touring cars had no problem with flipping or lots of friction. We didn't even brake for the turn at the end of the straight. Our cars handled great. But the micro class was pretty hard to keep them from flipping, but when we could get them setup right we could keep up with 1/10th mod (I was able to do as many laps in the same time as the third place and down in the 1/10th tc mod class while using a stock micro motor). I highly recommend it for a track though.
    Last edited by ajg; 09-29-2004 at 11:27 PM.
     

  18.  
    Join Date
    04-07-2000
    Location
    Lake Forest, CA
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    6,151
    I do not believe that we will be able to apply anything to the track to enhance traction. This is a real race track and I'm sure they don't want one corner of the track being real sticky and the rest without treatment. It would cause a lot of wrecks with the big cars and I'm sure they don't want to endanger any of their drivers.
     

  19.  
    if the weak point of one of these high speed cars is its tire, shouldn't you atleast try to redesign the wheel?
    probs with tires:
    the blow up at 80mph because of elasticity right?
    solution?:
    dont use rubber or a wheel in this case. Someone suggested this earlier, how about using tank tracks? you get more surface area with contact and you can make them out of titanium if u want. only problem is weight if its an issue right? but wouldn't u want the weight for stabibilty? this is just what i thought of a while back when i first saw this thread.
    either tank treads/tracks for drive or, make a walking r/c. those who are into robots should know how this works.
    my 2 pennies. no clue if they'll work but its worth a thought or try.
     

  20.  
    Join Date
    05-18-2001
    Location
    albuquerque, santafe
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    1,761
    I don't think treads would work, their odd symetry at high speeds would distort only in certain areas. Not to mention it would wiegh considerably more, and add to the complexity.

    You'd probably have to do what Pond did; have someone make custom belted tires.
     

  21.  
    I am not using rubber at all right now. But still, a lot of high speed cars, even real life drag cars they put stuff on the track to give traction at the starting line.
     

  22.  
    Join Date
    01-10-2003
    Location
    South Central PA
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    1,321
    im sure my mini-t is gonna win... (hahaha, not even close...) good luck to all competitors! its about time that someone has come up with this... i wonder if SWAMI has heard of this yet?
     

  23.  
    You must promise us that you will make videos of the best attempts and put them online. It is hard to imagine the speed when only reading about it. I have participated in several bicycle track speed runs and the speed looks amazing. The record in Denmark is 123km/h in average over a full 360m lap.
     

  24.  
    Join Date
    10-13-2004
    Location
    Chicago, IL
    Posts
    99
    http://www.solidworks.com/pages/news....html?prid=228 we should tell these ppl about the challenge.
     

  25.  
    Why?
     

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