Worlds fastest RC MT

[ReaperGN]

Right now the fastest MT on record is a wheely king that goes 72 mph. With some of the motors and batteries available I feel a MT could make it over 100 mph. Are there any fast MT's here that could possible beat the record?

http://fastestrc.blogspot.com/

 

[JKRacing37]

I should contest that...my WK has gone over 80 MPH before.

 

[ReaperGN]

Last time I checked the WK still had straight axles. So if a truck with straight axles can go 72+ then why are so many other types of trucks so slow?

You should contact admin for that site and see what it takes to set a record.

 

[jetboat]

I wonder what the definition of an MT is... you could easily build a straight axled streamliner that would run close to 100mph. Would that still be an MT?

set of axial axles with diff gears and overdrive's coupled to a simple 2 gear trans and some lightweight aluminum shafts and your pretty much done.

 

[quick5pnt0]

Isn't the wheely king that set that record the one that looks like a touring car with a pickup body?

 

[HawnMT]

I should contest that...my WK has gone over 80 MPH before.

:wish lol

 

[Mo']

I think its physically impossible to get an MT up over 100 unless you basically made it into a car.


There is no way your getting something up over 100 with the front profile of an MT.



Speed records are boring anyway. All 3 of my clods went over 80 mph last weekend and they didnt even have tires on them.

 

[ReaperGN]

The big MT's would need some serious power to do a 100+ mph. You could maybe hide one under a large body but it would cost as much as the starting price of the truck. Still a 100 mph clod would be a sight to see.

The smaller MT's could probably do it. There are some that are close. Very close.

But any large MT trying to set records would probably end up looking like this.

 

[Mo']

The power isnt the issue, its the aerodynamics.



Like you just stated, it would have to look nothing like a truck to work. At that point there is almost no point.

 

[JKRacing37]

The power isnt the issue, its the aerodynamics.

Aero plays such a big part just like 1:1 cars. I never realized how much aero is involved in RC until I started racing on road. Just changing bodies can make a car handle completely different. I ripped off the rear spoiler on my Camaro at one race and the car was so squirrly for the remainder of the race I couldn't believe it.

BTW - Both my WK and my son's WK have been over 80MPH. Didn't even have the radios turned on at the time.

 

[ReaperGN]

With enough power aerodynamics can take a back seat. Eventually you will reach a point where the amount of power needed to gain 1 mph is so large that its just not going to happen. Then you will need aerodynamics to gain any more speed.

 

[HawnMT]

With enough power aerodynamics can take a back seat.

While that's true in the low end, there comes a point where aerodynamics becomes more important than power. It's not just abut having the power to punch through the air it's also about handling and keeping the car planted on the ground. Top fuel dragsters were the kings of the quater mile for the longest time until they hit the aerodynamic wall and funny cars with much better aerodynamics took over. It's the same with Formula 1 and Indy cars. The biggest aerodynamic drag on those cars are the exposed tires. You can add all the power you want but bad aero will mean the car won't be driviable and will either fly in the air or get squirrely and crash.

 

[BDKesling]

With enough power aerodynamics can take a back seat. Eventually you will reach a point where the amount of power needed to gain 1 mph is so large that its just not going to happen. Then you will need aerodynamics to gain any more speed.

This post seems like you have no idea what you're talking about. You make a statement, then you contradict yourself. "With enough power aerodynamics don't matter but you can't get enough power so they matter"?


A top speed contest for monster trucks is as pointless as a bulldog race. You could spend generations selectively breeding bulldogs to get one that's tall skinny and fast, but that's not really a bulldog is it.

 

[PoweredHobbies]

Ohyeah? Well my Losi MRC goes about 5

 

[ReaperGN]

While that's true in the low end, there comes a point where aerodynamics becomes more important than power. It's not just abut having the power to punch through the air it's also about handling and keeping the car planted on the ground. Top fuel dragsters were the kings of the quater mile for the longest time until they hit the aerodynamic wall and funny cars with much better aerodynamics took over. It's the same with Formula 1 and Indy cars. The biggest aerodynamic drag on those cars are the exposed tires. You can add all the power you want but bad aero will mean the car won't be driviable and will either fly in the air or get squirrely and crash.

Until you know where that wall is its hard to decide if more power Vs. better aerodynamics is better. A bit of both is best. Considering the size of the bigger MT's I feel power is the better starting option. Once you hit the aerodynamic wall or a actual wall then its time to start playing with the aerodynamics.

 

[Ball Racing]

Last time I checked the WK still had straight axles. So if a truck with straight axles can go 72+ then why are so many other types of trucks so slow?

Why is anything the way it is?
Where do you drive 100 mph clodbusters?
How much distance does it take to make it?, and slow back down?
What surface does it require?
If it's a smooth enough surface it does not matter that it has straight axles.
The rear on a top fuel car is straight axled and can go 340mph.
And maybe no one cares enough yet to put the money into something useless to pull it off, or maybe newton, and murphy say no...

Ever drive a savage flux on 6S lipo?,
ever feel it would be feashable to stack on another 40mph, and it be able to actually be driven?

Top fuel dragsters were the kings of the quater mile for the longest time until they hit the aerodynamic wall and funny cars with much better aerodynamics took over..

Actually the Top Fuel dragsters are still the MPH king. as well as the quickest ET.

 

[Mo']

Until you know where that wall is its hard to decide if more power Vs. better aerodynamics is better. A bit of both is best. Considering the size of the bigger MT's I feel power is the better starting option. Once you hit the aerodynamic wall or a actual wall then its time to start playing with the aerodynamics.

Clearly power isn't the issue. Most trucks go about 40 right out of the box with their stock motor/engine setups. If all it took was adding more power to go 100 MPH dont you think all those stupid dual engine nitro trucks or guys who insist on running dual BL motor setups on E Revos would be doing more than 10mph faster speeds with double the power?


By your logic the fact they arent going any faster means they just dont have enough power, not that they are as aerodynamic as the side of a house. You also have to factor in their stability along with the drag from the aerodynamics. Even if you somehow could power a stock form MT up to 100mph (which you cant) it would be flying through the air like a plastic bag in the wind from all the air running underneath the massive void under the truck.



To put it simply, aerodynamics is more important than power when it comes to speed runs. While on smaller scales one can compensate for the other, a vehicle with bad aerodynamics is going to waste alot of whatever HP it makes just pushing itself around while a vehicle with sound aerodynamics will make proper use of whatever power it makes.

 

[Ball Racing]

There is a law of nature with a formula that I don't feel like looking up, that shows once you hit a certain MPH, it takes 8 times the HP to double the speed in a given distance.
Top Fuel cars in some form support this,
as in the 60's the fuelers were only making 1,000-1,400 HP and were going 150MPH in the quarter mile.
And today they are going over 300mph and are making 8,000HP

 

[Mo']

its just like the Bugatti Veyron only uses about 280HP to get up to 150MPH yet needs nearly 620HP more to hit 253MPH.


You better believe it wouldnt be doing any of that it was an F-150 with that motor in it.

 

[Jerry Matoon]

I think its physically impossible to get an MT up over 100 unless you basically made it into a car.


There is no way your getting something up over 100 with the front profile of an MT.



Speed records are boring anyway. All 3 of my clods went over 80 mph last weekend and they didnt even have tires on them.

As do mine; especially when I'm running in Ohio:laugh
Jerry