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Car Action World's Fastest RC Car Challenge! What car are you going to build to break the world speed record for RC cars?

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  #551  
Old 02-20-2006, 02:32 AM
ofnaravager9 ofnaravager9 is offline
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holy crap thats huge!
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  #552  
Old 02-20-2006, 10:49 AM
Craps Craps is offline
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My motor is biggggggerrrr!!!!
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  #553  
Old 02-20-2006, 04:20 PM
ofnaravager9 ofnaravager9 is offline
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lol they should make them bigger!
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  #554  
Old 02-23-2006, 04:28 AM
Chase023 Chase023 is offline
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Go Take a Pic!!

Lemme see your bigger motor and 80.200 schulze
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  #555  
Old 02-23-2006, 06:20 AM
Craps Craps is offline
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Originally Posted by Chase023
Go Take a Pic!!

Lemme see your bigger motor and 80.200 schulze
Camera is broken and will not be repaired till July 30th of this year!
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  #556  
Old 02-23-2006, 04:53 PM
Chase023 Chase023 is offline
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Bastard!!! heh
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  #557  
Old 02-23-2006, 07:35 PM
ofnaravager9 ofnaravager9 is offline
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Bastard!!! heh
lol i should just sell him my camera!!!
ive been tryin to sell it for weeks...

-luke
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  #558  
Old 02-23-2006, 09:54 PM
Craps Craps is offline
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lol i should just sell him my camera!!!
ive been tryin to sell it for weeks...

-luke
No money! Spent it all on an RC car for some contest! LOL
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  #559  
Old 02-23-2006, 10:30 PM
ofnaravager9 ofnaravager9 is offline
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lol wat contest????

btw its a digi rebel!!! amazing pics with it!

-luke

ps u want it free?
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  #560  
Old 03-18-2006, 03:04 PM
jak785 jak785 is offline
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Does this speed record only pertain to nitro r/c cars, or can a r/c car with a jet engine on it claim the title? Are there rules posted anywhere like max distance you can use to get to speed, cuz I got a jet engine, and I'm going to stick it on a r/c car, and I garente it will be over 111mph.
-jason
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  #561  
Old 03-19-2006, 04:07 PM
apollo apollo is offline
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im pretty sure it pertains to nitro and electric, not jet powered
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  #562  
Old 03-19-2006, 09:23 PM
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Smib Smib is offline
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I just read through this entire thread. My brain melted pages ago so I don't even remember much of it, but this sounds awesome.

I know rocket engines aren't supposed to be allowed, but what about this?
A multi-stage rocket into a turbine that has an emergency disconnect and some kind of godly braking? Give it a rolling start, or maybe a CO2 canister for a startoff so as not to waste rocket power and you have a very fast vehicle.

I would like to see someone make an off road F-1 car out of an MT. It cernantly wouldn't win any speed records, but it would look neat.
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  #563  
Old 03-20-2006, 08:46 AM
mook mook is offline
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you cant used thrust powered. Wheels must be driven.

you could use a heli turbine, but would need to delimit it to get good speed
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  #564  
Old 03-20-2006, 02:32 PM
jak785 jak785 is offline
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Its not that hard to get brakes on the car to lock up with a good braking system. The problem would be keeping the car from sliding on the ground due to the lack of weight overcoming the coefficent of friction between the tires and ground. A turboshaft like you said would qualify, and If anyone owns one, it wouldn't be that hard to beat the record. I know a guy in the UK who has the same engine as I do, but converted it from thrust into a turboshaft, and it puts out 9.7hp at full throttle in his airplane, yet the engine only weighs 3lbs.
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  #565  
Old 03-20-2006, 08:51 PM
NitroDad NitroDad is offline
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I'm ready to see some HI-SPEED crashes!!! I hope you all take you camcorders.
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  #566  
Old 03-21-2006, 11:38 AM
mook mook is offline
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Quote:
Originally Posted by jak785
Its not that hard to get brakes on the car to lock up with a good braking system. The problem would be keeping the car from sliding on the ground due to the lack of weight overcoming the coefficent of friction between the tires and ground. A turboshaft like you said would qualify, and If anyone owns one, it wouldn't be that hard to beat the record. I know a guy in the UK who has the same engine as I do, but converted it from thrust into a turboshaft, and it puts out 9.7hp at full throttle in his airplane, yet the engine only weighs 3lbs.
they turn over with silly rpm's as well

reckon a turbine driven car would perform well

just the $$$$
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  #567  
Old 03-21-2006, 10:04 PM
jak785 jak785 is offline
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Yeah, they do turn at high rpm.. My engine is set at max rpm of 122,000 rpm with a thrust of 23.4lbs. Thats a mind boggling 2,033 revs per second.
About the price. Well actualy, depending on which way you go, they are not that expensive. If I remeber correctly from when reading through all the past 23 pages of posts, some of you are putting 1,000-3,000 bucks worth of parts into your cars, and I'm sure a few have spent much more than that.
I personly built my engine from bar stock on a lathe and mill, and only had to buy the compressor, turbine, and bearings. It only cost me a total of $560 to make a running engine. Now if you don't have the machines available to make an engine yourself, than you can buy one which produces the same amount of thrust as mine for only $1,300 ready to run. Then all you need is a car frame which isn't that expensive. And weight isn't too much of a worry with the amount of power you got comeing out the back of that engine.
Now if you want to go with a turboshaft to drive those wheels, than your going to be forking out $2,500 dollars out of your pocket for a 3.3lb engine producing appox. 8.7hp. (very nice power/weight ratio compared to gas engines)
How much hp does yalls high speed 80-90mph nitro engines put out? Compare that to 8.7hp, and compare proably around a total of 3,000 dollars for a running turboshaft rc car to what you can get in nitro for the same amount. And I personaly think it would be much more fun to drive a r/c jet car than a nitro/eletric car.

P.S. I'm not putting down nitro or electric cars, as everyone has a diffrent taste for what they like. My bro has a nitro car, and it is a blast to play with. I'm just talking about the possabilty of putting a turbojet or turboshaft engine on a r/c car. So please don't give me hate saying I'm putting down nitro/electric cars, as I'm not.
-Jason
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  #568  
Old 03-24-2006, 01:52 AM
trailranger trailranger is offline
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Fuel?

So have you thought about driving that turbin with NOS and rubber or asphalt? It seems to be the choice fuel combo for hybird rockets, so why not use it to spin those wheels.

The idea is simple, flow Nitrous Oxide over the rubber or asphalt and ignite it. Those hot gases should get to reving.
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  #569  
Old 03-24-2006, 07:49 PM
rx78gp03s rx78gp03s is offline
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just curious, why doesn't anyone build a steam powered r/c car? I mean like using the pressure from steam to power/drive teh axles? muich like a steam locomotive. The amount of power that can be generate/rpm if done right can be mind boggling. with that in mind, why don you use the turbine engines in the same manner, except use the exaust.
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  #570  
Old 03-28-2006, 11:55 PM
jak785 jak785 is offline
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Thats what we were talking about before. A turboshaft engine is a jet engine using the exhaust to drive a free rotating turbine connected to the wheels through a gearbox. They can put out a lot of hp for a little weight.
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  #571  
Old 03-29-2006, 03:01 AM
griz11 griz11 is offline
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100 mph should be pretty easy

Ive seen .21 powered dragsters hit 94.6 mph in 132 ft. An electric 20 cell with a 6 magnet neo motor went 98.8 mph in 132 ft last year at the World Finals. I saw a 90.9 mph run a couple of weeks ago. So 100 mph should be easy with a longer track to build up speed. I would think 150 or more would be something to shoot for.

Griz
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  #572  
Old 03-29-2006, 11:18 AM
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Combatcm Combatcm is offline
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Originally Posted by griz11
I would think 150 or more would be something to shoot for.

Griz
Look for cars named "Bearing Seizer"
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  #573  
Old 03-30-2006, 01:15 AM
trailranger trailranger is offline
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Quote:
Originally Posted by jak785
Thats what we were talking about before. A turboshaft engine is a jet engine using the exhaust to drive a free rotating turbine connected to the wheels through a gearbox. They can put out a lot of hp for a little weight.
noticed i said, "that turbin" I was following the thread. But anyways, have you tried the Nitous? It also burns well with keosene, if you have a way to regulate flow. I've seen pulse detonation engines use a small pressureized bottle filled liquid fuel and tapped at the bottom. Add about 300 PSI of N2 or H, to the tank and regualte it into the combustion chamber. The almost inert gas forces the fuel out the bottom.
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  #574  
Old 04-14-2006, 11:21 AM
mook mook is offline
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what do you reckon the winning top speed will be in this competition.For sure no one has a crystal ball... but in what area do think the winning speed will be in?
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  #575  
Old 04-15-2006, 12:53 AM
jonnycash jonnycash is offline
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Quote:
Originally Posted by rx78gp03s
just curious, why doesn't anyone build a steam powered r/c car? I mean like using the pressure from steam to power/drive teh axles? muich like a steam locomotive. The amount of power that can be generate/rpm if done right can be mind boggling. with that in mind, why don you use the turbine engines in the same manner, except use the exaust.
I'm not sure if this is true in small model engines, but you need a liscence to operate a steam engine. They can turn into a bomb if not properly used.
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