TOP SPEED?
11-02-2005, 02:58 PM
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TOP SPEED?
I was just wondering what the top speed of some of the onroad cars are. i have heard of people putting in the two speed and it being more of a headach then anything else...what kind of speed would you get out of an onroad with a 2speed in it?
robert
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11-02-2005, 03:21 PM
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RE: TOP SPEED?
Don't know about the two-speed part but an FG dealer I work with runs FG EVO on-road (NASCAR bodies on a banked oval track) and FG Comp Formula 1 cars. He said the EVOs were running 45 - 50 miles per hour with tuned pipe. He said the Formula 1 cars were hitting 80 miles per hour in a good straight section.
11-02-2005, 03:59 PM
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RE: TOP SPEED?
It all depends on what you want to do to them, mod engines, gearing, two speeds, pipes, tires. We have seen 104mph (real speed not scale) out of a monster truck. I know we could push a sedan faster.
11-02-2005, 06:10 PM
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RE: TOP SPEED?
wow wow and another one hell of a wow.
robert
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ORIGINAL: mnf1sand
It all depends on what you want to do to them, mod engines, gearing, two speeds, pipes, tires. We have seen 104mph (real speed not scale) out of a monster truck. I know we could push a sedan faster.
It all depends on what you want to do to them, mod engines, gearing, two speeds, pipes, tires. We have seen 104mph (real speed not scale) out of a monster truck. I know we could push a sedan faster.
11-02-2005, 06:35 PM
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RE: TOP SPEED?
ORIGINAL: mnf1sand
It all depends on what you want to do to them, mod engines, gearing, two speeds, pipes, tires. We have seen 104mph (real speed not scale) out of a monster truck. I know we could push a sedan faster.
It all depends on what you want to do to them, mod engines, gearing, two speeds, pipes, tires. We have seen 104mph (real speed not scale) out of a monster truck. I know we could push a sedan faster.
11-02-2005, 09:43 PM
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RE: TOP SPEED?
what truck went that fast sorry would like to see that if a weed wacker motor no way not enough rpm only electic motors like cliff letts been 112 world record.monster truck to big tires robb too much pavement power.
11-02-2005, 10:39 PM
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RE: TOP SPEED?
104mph large scale MT is quite an achievement, is there any proof of this at all?
RCCA had to undergo quite a lot of trouble to have a heavily modified Super Nitro with a Nova .21 engine to get it up to 100mph - which it did.
With large scale cars having much worse power/weight ratio than nitro cars, it would take quite an extraordinary effort to get it up to 100mph.
RCCA had to undergo quite a lot of trouble to have a heavily modified Super Nitro with a Nova .21 engine to get it up to 100mph - which it did.
With large scale cars having much worse power/weight ratio than nitro cars, it would take quite an extraordinary effort to get it up to 100mph.
11-02-2005, 10:42 PM
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RE: TOP SPEED?
a one off mod motor, highest geared sedan 2-speed, a set of beadlocks for weight to keep it on the ground, plus 1.5 miles to get it up to speed and stop. its not that hard to believe, there have been several sedans in the 90's in the last couple years. same gearing with alot more tire diameter.
11-02-2005, 11:13 PM
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RE: TOP SPEED?
ORIGINAL: gonsped69
104mph large scale MT is quite an achievement, is there any proof of this at all?
RCCA had to undergo quite a lot of trouble to have a heavily modified Super Nitro with a Nova .21 engine to get it up to 100mph - which it did.
With large scale cars having much worse power/weight ratio than nitro cars, it would take quite an extraordinary effort to get it up to 100mph.
104mph large scale MT is quite an achievement, is there any proof of this at all?
RCCA had to undergo quite a lot of trouble to have a heavily modified Super Nitro with a Nova .21 engine to get it up to 100mph - which it did.
With large scale cars having much worse power/weight ratio than nitro cars, it would take quite an extraordinary effort to get it up to 100mph.
Nitro .28 motor, best tuned pipe for that motor, 10lb truck.
2hp
80oz/in torque
FG MT w/Zenoah 26cc engine, Samba 3 pipe, 24lb truck.
5.3hp
440oz/in torque.
You do the math.
11-02-2005, 11:42 PM
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RE: TOP SPEED?
Wyattroa - did you get your sedan yet??
ORIGINAL: wyattroa
I was just wondering what the top speed of some of the onroad cars are. i have heard of people putting in the two speed and it being more of a headach then anything else...what kind of speed would you get out of an onroad with a 2speed in it?
robert
I was just wondering what the top speed of some of the onroad cars are. i have heard of people putting in the two speed and it being more of a headach then anything else...what kind of speed would you get out of an onroad with a 2speed in it?
robert
11-03-2005, 12:47 AM
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RE: TOP SPEED?
The only logical reasoning would be to use an abandoned/empty airstrip/highway and trail it with a car.
Canadian RC - forgetting offroad, just comparing onroads 1/8th and 1/5th (also negating the effect of rubber tires) - 1/8 cars still outperform 1/5 in acceleration and top speed. It will simply get there quicker whichever way you put it.
High end modified 3.5cc motors can get up to 3.5HP and beyond. 0-120km/hr in 2-3 seconds for a top end 8th scale onroad - doesn't take a genius to work that out.
Torque does not directly translate to faster speed.
Canadian RC - forgetting offroad, just comparing onroads 1/8th and 1/5th (also negating the effect of rubber tires) - 1/8 cars still outperform 1/5 in acceleration and top speed. It will simply get there quicker whichever way you put it.
High end modified 3.5cc motors can get up to 3.5HP and beyond. 0-120km/hr in 2-3 seconds for a top end 8th scale onroad - doesn't take a genius to work that out.
Torque does not directly translate to faster speed.
11-03-2005, 01:29 AM
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RE: TOP SPEED?
The torque is applied HP and has everthing to do with getting up to speed actually. As I have said before, HP is nothing if you don't have torque... Torque is what over comes the weight and allows the horsies to pull.
I don't doubt that 104 MPH is possible, but the gearing would have to be extremely high (a crawling start) and the engine probably extremely modified. I have heard of some 29cc engines pushing 7-8 hp modded out (don't remember where.. I think on RCU, but I'll look). That is some insane HP numbers for a weedwacker motor. Anyway, Nitro is no faster than Gas from my experience. With both engines modded the same (Nitro vs Gas) the gas would win simply because the Nitro motor (at WOT) would blow itself apart before the end of the mile-long runway. Not to mention the traction issues the Nitro would have with it's smaller footprint on the track and less weigh to keep the power planted. In my experiences, Nitro engines do make great power for their size, but they also break under any kind of big stress. Hence the reason most of us got out of Nitro and into Gasoline cars.
I don't doubt that 104 MPH is possible, but the gearing would have to be extremely high (a crawling start) and the engine probably extremely modified. I have heard of some 29cc engines pushing 7-8 hp modded out (don't remember where.. I think on RCU, but I'll look). That is some insane HP numbers for a weedwacker motor. Anyway, Nitro is no faster than Gas from my experience. With both engines modded the same (Nitro vs Gas) the gas would win simply because the Nitro motor (at WOT) would blow itself apart before the end of the mile-long runway. Not to mention the traction issues the Nitro would have with it's smaller footprint on the track and less weigh to keep the power planted. In my experiences, Nitro engines do make great power for their size, but they also break under any kind of big stress. Hence the reason most of us got out of Nitro and into Gasoline cars.
11-03-2005, 01:46 AM
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RE: TOP SPEED?
ORIGINAL: gonsped69
The only logical reasoning would be to use an abandoned/empty airstrip/highway and trail it with a car.
Canadian RC - forgetting offroad, just comparing onroads 1/8th and 1/5th (also negating the effect of rubber tires) - 1/8 cars still outperform 1/5 in acceleration and top speed. It will simply get there quicker whichever way you put it.
High end modified 3.5cc motors can get up to 3.5HP and beyond. 0-120km/hr in 2-3 seconds for a top end 8th scale onroad - doesn't take a genius to work that out.
Torque does not translate to faster speed.
The only logical reasoning would be to use an abandoned/empty airstrip/highway and trail it with a car.
Canadian RC - forgetting offroad, just comparing onroads 1/8th and 1/5th (also negating the effect of rubber tires) - 1/8 cars still outperform 1/5 in acceleration and top speed. It will simply get there quicker whichever way you put it.
High end modified 3.5cc motors can get up to 3.5HP and beyond. 0-120km/hr in 2-3 seconds for a top end 8th scale onroad - doesn't take a genius to work that out.
Torque does not translate to faster speed.
11-03-2005, 01:48 AM
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RE: TOP SPEED?
I don't wish to start a flame war but I do recall RCCA magazine reviewed the OS .21 VZB back a few months and it was 2.9 or 3.0 BHP on their dyno.
I guess it depends what numbers can you believe as nobody has set a standard for these dyno results yet.
But yes, on a tight, twisty track an 8th scale onroad will destroy a 5th scale car in terms of agility and acceleration. That is what I have seen on our local tracks.
In the long stretch of running, it is a fact that nitro engines do blow from overrevving and gas motors will win. Its actually this reason which made me switch to gas.
I guess it depends what numbers can you believe as nobody has set a standard for these dyno results yet.
But yes, on a tight, twisty track an 8th scale onroad will destroy a 5th scale car in terms of agility and acceleration. That is what I have seen on our local tracks.
In the long stretch of running, it is a fact that nitro engines do blow from overrevving and gas motors will win. Its actually this reason which made me switch to gas.
11-03-2005, 01:49 AM
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RE: TOP SPEED?
ORIGINAL: Acs_guitars
The torque is applied HP and has everthing to do with getting up to speed actually. As I have said before, HP is nothing if you don't have torque... Torque is what over comes the weight and allows the horsies to pull.
I don't doubt that 104 MPH is possible, but the gearing would have to be extremely high (a crawling start) and the engine probably extremely modified. I have heard of some 29cc engines pushing 7-8 hp modded out (don't remember where.. I think on RCU, but I'll look). That is some insane HP numbers for a weedwacker motor. Anyway, Nitro is no faster than Gas from my experience. With both engines modded the same (Nitro vs Gas) the gas would win simply because the Nitro motor (at WOT) would blow itself apart before the end of the mile-long runway. Not to mention the traction issues the Nitro would have with it's smaller footprint on the track and less weigh to keep the power planted. In my experiences, Nitro engines do make great power for their size, but they also break under any kind of big stress. Hence the reason most of us got out of Nitro and into Gasoline cars.
The torque is applied HP and has everthing to do with getting up to speed actually. As I have said before, HP is nothing if you don't have torque... Torque is what over comes the weight and allows the horsies to pull.
I don't doubt that 104 MPH is possible, but the gearing would have to be extremely high (a crawling start) and the engine probably extremely modified. I have heard of some 29cc engines pushing 7-8 hp modded out (don't remember where.. I think on RCU, but I'll look). That is some insane HP numbers for a weedwacker motor. Anyway, Nitro is no faster than Gas from my experience. With both engines modded the same (Nitro vs Gas) the gas would win simply because the Nitro motor (at WOT) would blow itself apart before the end of the mile-long runway. Not to mention the traction issues the Nitro would have with it's smaller footprint on the track and less weigh to keep the power planted. In my experiences, Nitro engines do make great power for their size, but they also break under any kind of big stress. Hence the reason most of us got out of Nitro and into Gasoline cars.
11-03-2005, 01:50 AM
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RE: TOP SPEED?
Well concerning top speed....
I found this on the net and they claimed it was 200+ MPH !!!!
And I believe it is true.
It is the fasted rc car I saw so far, though can it be called an rc car stil?
They are taking the RC stuf from the rc car as it is impossible to control anymore at those speeds.
It is not a 2-stroke but nitro powered, well see for yourselves.
Have fun watching
http://www.fazed.org/video/view/?id=96
I found this on the net and they claimed it was 200+ MPH !!!!
And I believe it is true.
It is the fasted rc car I saw so far, though can it be called an rc car stil?
They are taking the RC stuf from the rc car as it is impossible to control anymore at those speeds.
It is not a 2-stroke but nitro powered, well see for yourselves.
Have fun watching
http://www.fazed.org/video/view/?id=96
11-03-2005, 01:53 AM
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RE: TOP SPEED?
ORIGINAL: gonsped69
I don't wish to start a flame war but I do recall RCCA magazine reviewed the OS .21 VZB back a few months and it was 2.9 or 3.0 BHP on their dyno.
I guess it depends what numbers can you believe as nobody has set a standard for these dyno results yet.
I don't wish to start a flame war but I do recall RCCA magazine reviewed the OS .21 VZB back a few months and it was 2.9 or 3.0 BHP on their dyno.
I guess it depends what numbers can you believe as nobody has set a standard for these dyno results yet.
I saw that too..... And 100% true - - every dyno is different.
11-03-2005, 06:39 AM
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RE: TOP SPEED?
i have no problem beliving you can get a MT to run in 167.371776 km/h =)
i've run 140km/h in a old diesel car.. probebly a happy 40-60hp and 5 gears... and i guess like ... 1400kg (1 400 kilograms = 3 086.47167 pound) (to everont that doesnt know.. google can convert just write like.. 1400kg = ? lb and you will know
)
not just every dyno is diffrent ever engine is diffrent to
but i guess not much..
well i've heard you can get a nitro do 3+ hp... but i guess the torque will stay low cos of the small cc...
what i've learn is that torque is made from the cc of the engine.. and ofcourse alot more.. but the size maters
not many nitros got as much power as a untuned 23-29cc engine...
i've run 140km/h in a old diesel car.. probebly a happy 40-60hp and 5 gears... and i guess like ... 1400kg (1 400 kilograms = 3 086.47167 pound) (to everont that doesnt know.. google can convert just write like.. 1400kg = ? lb and you will know
)not just every dyno is diffrent ever engine is diffrent to
but i guess not much..well i've heard you can get a nitro do 3+ hp... but i guess the torque will stay low cos of the small cc...
what i've learn is that torque is made from the cc of the engine.. and ofcourse alot more.. but the size maters
not many nitros got as much power as a untuned 23-29cc engine...
11-03-2005, 08:51 AM
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RE: TOP SPEED?
No the car should be here monday! i had a comp fg and was looking at a 2speed for that in the past but i thought i looked too much like a head ache for me.
robert
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ORIGINAL: rfaster
Wyattroa - did you get your sedan yet??
Wyattroa - did you get your sedan yet??
ORIGINAL: wyattroa
I was just wondering what the top speed of some of the onroad cars are. i have heard of people putting in the two speed and it being more of a headach then anything else...what kind of speed would you get out of an onroad with a 2speed in it?
robert
I was just wondering what the top speed of some of the onroad cars are. i have heard of people putting in the two speed and it being more of a headach then anything else...what kind of speed would you get out of an onroad with a 2speed in it?
robert
11-03-2005, 09:32 AM
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RE: TOP SPEED?
onroad 1/8th scale nitros push the 3 hp range no problem.. RB,s NovaMegas, etc current .28 we see in trucks etc are not race motors like the .21's full mods being run in the onroad cars, most of those motors will not survive in a off road vehicle as the power bands are way off.
This is 1/8th scale onroad 65 feet out of a hairpin, in the middle of a chicane.
Small Cars Unlimited would be the dealer that put the Monster Truck to the 104 MPH range, give ed a call and ask how they achieved the speed.
Bigger CC is not always the answer. but more rpm's will definatly be a factor as we are already limited by the gear ratios.
This is 1/8th scale onroad 65 feet out of a hairpin, in the middle of a chicane.
Small Cars Unlimited would be the dealer that put the Monster Truck to the 104 MPH range, give ed a call and ask how they achieved the speed.
Bigger CC is not always the answer. but more rpm's will definatly be a factor as we are already limited by the gear ratios.