RE: World's Fastest RC Monster Truck is...........................  
View related threads: (in this forum | in all forums)

Tower Hobbies
Enter up to 4 keywords or Tower stock numbers
Logged in as Guest



Users viewing this topic: none
  Printable Version
       

All Forums >> RC Cars, Buggies, Trucks, Tanks and more >> RC Monster Trucks >> HPI Monster Truck Forum >> RE: World's Fastest RC Monster Truck is...........................
Page: <<   < prev  1 [2] 3   next >   >>  

Login
Message << Older Topic   Newer Topic >>
RE: World's Fastest RC Monster Truck is................. - 8/16/2007 10:41:02 AM   
HeatFire



Posts: 572
Joined: 8/21/2005
From: Stockholm, SWEDEN
Status: offline 		hmm i guess anyway we pay overprice for methanol.... methanol can be manufactured really cheap... sure.. no "top of the line" stuff like they say the fuels we buy are... but hey.. if the costs of the fuel were really low compared to today... why care if it aint stable to store for like 1 year + like it's now..

_____________________________

Savage X, STS D30M

(in reply to SpikeX)
       Post #: 26

RE: World's Fastest RC Monster Truck is................. - 8/16/2007 11:23:13 AM   
splcrazy


 

Posts: 1606
Joined: 8/21/2006
From: melb, AUSTRALIA
Status: offline
quote:

ORIGINAL: SpikeX

I think it's about time people came out with completely new technology for nitro engines. We need more power, more torque, less / easier tuning, etc. These little engines are really finicky, and a lot of people are quitting the hobby because of that. We need cheaper fuel (or make these engines run on a completely different fuel altogether). If designers could fullfill all those needs, without increasing the price of engines and associated equipment, I think a lot more people would buy nitros.


yes and thats why i own a baja5b too , but cant help it , still like my nitros too for some reason . what they should make is an engine that runs on NATURAL GAS it would be so easy to refill just like refilling up a cigarete lighter and gas is way cheaper than methanol & petrol . electric run models lose peak power when the batterys start getting flat lol whats the point of that lol

(in reply to SpikeX)
       Post #: 27

RE: World's Fastest RC Monster Truck is................. - 8/19/2007 1:47:02 AM   
gravediggerracing



Posts: 3806
Joined: 7/21/2005
From: SW Burbs of Chitown, IL, USA
Status: offline 		I think nitro engine technology is pretty much maxed out. Aside from little improvements with porting and timing, there's not really much else that can be improved upon without completely redesigning/retooling the "nitro engine" as we know it. Will nitro engine companies invest the money to go that route? If there's a business case they will, but to just do it, I doubt it. What you see in the high dollar, top end engines is the best of what nitro technology has to offer. There will come a point in time when electric hits this point as well, but as of right now, electric technology is hot, hot, hot and will be for at least a couple more years.

_____________________________

There is no replacement for displacement

(in reply to splcrazy)
       Post #: 28

RE: World's Fastest RC Monster Truck is................. - 8/19/2007 4:02:04 AM   
holinger91


 

Posts: 468
Joined: 1/19/2006
From: canton, SD, USA
Status: offline 		lol... the thing about it is... is that the electrics just dont jump and take the beat as nice... the battery packs are so heavy that they often go flying, the engine often has the wires come loose, its just not as fun.... sure i have fun with my electrics, but every jump is a jump, then run up and plug things back in, then go again... tho the nitros take time to go... the savage just goes and goes once its goin good... i dont care about speed... the current brushless motors are perfect for my likings... they just have some durability improvements to make IMO

(in reply to gravediggerracing)
       Post #: 29

RE: World's Fastest RC Monster Truck is................. - 8/19/2007 8:30:17 AM   
SAVAGEJIM



Posts: 5283
Joined: 7/6/2005
From: behind my 'puter, USA
Status: offline 		I agree with you as far as nitro goes. Yes, nitro engines are maxed out as they are, but if they want to remain competitive with motor, engines will have to go multi-cylinder and go with a fuel that has way more BTUs per unit mass than what nitro has. That way, you could gear way high since the new fuel and engines would have the torque to push them.

_____________________________

I hate stray Tomcats

(in reply to gravediggerracing)
       Post #: 30

RE: World's Fastest RC Monster Truck is................. - 8/19/2007 10:34:49 AM   
Foxy



Posts: 8924
Joined: 3/23/2005
From: Kingston UK, but living in Athens, GREECE
Status: offline 		We won't ever see 100mph RTRs, maybe some kind of e-version of 1/8th road racers, but even then...no, I don't think so. They can't be driven at that speed. They have to be lightened and made specially aerodynamic in such ways to make the cars very weak, from a customer service point of view it makes no sense. Some of these 100mph brushless cars are almost snapped in half when they inevitably wreck at that speed. The size of the cars and the laws of physics simply procude the average hobbyist from owning or even wanting such a car. Like you said Traxxas 'for the masses'. Imagine a 13 year old kid getting a brushless touring car cos it said 100mph on the box, after the first run, he'll be back at the shop saying first he can't control it, and second that it's broken. Those kinds of speeds will always be a niche.

_____________________________

Foxy. RCU Car Forums Moderator.
"Artificial Intelligence is no match for genuine stupidity".
Check out my Large Scale Gas RC Car Vids... www.youtube.com/foxy4242

(in reply to SAVAGEJIM)
       Post #: 31

RE: World's Fastest RC Monster Truck is................. - 8/19/2007 4:58:49 PM   
SAVAGEJIM



Posts: 5283
Joined: 7/6/2005
From: behind my 'puter, USA
Status: offline 		LOL, to prevent punks from ramming stuff with a $500 RC, I can see RC makers putting limiter of one sort or another on newer RCs that are capable of very high speeds.

Yes, RTRs, even electric, has a way to go before they can achieve the true 100MPH mark, but it will not be too long before it is breached and I strongly believe an electric will be the one that does it. If a nitro RC wants to see anything near 100MPH true speed, it would have to mount multiple engines, no less than two or three very powerful engines; and there are very few RTRs that are dual engine mounted. Actually, I am guessing that it might take at least 4 nitro engines and a very very very high gear ratio. The reason why I say at least 4 is because nitro engines are very very very weak in torque. Gasoline engines are the option then since gas has way more BTUs per unit mass than nitro. This factor alone should double or exceed double the current torque output of that of nitro.

_____________________________

I hate stray Tomcats

(in reply to Foxy)
       Post #: 32

RE: World's Fastest RC Monster Truck is................. - 8/19/2007 5:17:22 PM   
cossack71


 

Posts: 83
Joined: 7/17/2006
From: Battle Ground, WA, USA
Status: offline 		I don't know if I agree with multiple motors. Yes, it will give you more torque, but it also adds a lot of weight (motors plus gas tanks + ) and weight slows you down.
Look at 1:1 cars like the Lotus and Porsche, little motors, high speed. Most of it is done through gearing. and high revs.
Now if they could build a small 4 stroke, multi cylinder, extremely high rev motor (think F1, little 2.4 V8 that spins up to 19K), and a 5 or 6 speed trans, then 100+ wouldn't be a problem. You would have the torque, and the gearing after 3rd or 4th would be overdrive. You could do a 2 stroke with a 6 speed, but you would lose some of the torque, and have the revs but with a 4 stroke, you could run regular gas, or even alternate fuels.
Multiple motors work in tractor pulling, but they aren't really known for a quick ET.

(in reply to SAVAGEJIM)
       Post #: 33

RE: World's Fastest RC Monster Truck is................. - 8/19/2007 5:32:59 PM   
gravediggerracing



Posts: 3806
Joined: 7/21/2005
From: SW Burbs of Chitown, IL, USA
Status: offline 		I'd think again before saying we won't see 100mph RTRs. Take a look around you-speed is king these days and will be for a while. Everything and everybody is advertising SPEED, SPEED, SPEED. It's what the people want! The first company to hit the century mark in top speed is going to go down in RC History....and the payout is going to be huge. Sit back, crack open a cold one or two and just wait. It WILL happen, and sooner than later.

_____________________________

There is no replacement for displacement

(in reply to cossack71)
       Post #: 34

RE: World's Fastest RC Monster Truck is................. - 8/19/2007 5:42:15 PM   
gravediggerracing



Posts: 3806
Joined: 7/21/2005
From: SW Burbs of Chitown, IL, USA
Status: offline
quote:

ORIGINAL: cossack71

Look at 1:1 cars like the Lotus and Porsche, little motors, high speed. Most of it is done through gearing. and high revs.

That sounds nice and is true, except you are forgetting or forgot to state one KEY aspect of those cars. Low weight. And turbos for sake of argument. They can perform like they do because they are very light and that gives them a very favorable power to weight ratio. And turbos or a turbo give those little engines the "artifical" displacement boost they require for a decent torque curve and hp boost for top end pull. If those cars were even 500lbs heavier, they'd see a major hit in performance. Add that weight and take the turbo or turbos off and they'd be slugs that couldn't run with a Geo Metro. The time tested "formula" for weight loss/gain and it's affect on performance is such: every 100lbs gained will add a tenth of a second to your acceleration times......and on the same hand, every 100lbs you lose will drop a tenth off your acceleration times.

edit-I think multi cylinder engines, in a V configuration for weight and space savings would be a great idea. A cool V2 nitro burner would be sweet. You'd see huge torque increases automatically via increased displacement and the HP would shoot up big time. This would be a step in the right direction to close the gap between nitro and brushless.

< Message edited by gravediggerracing -- 8/19/2007 5:49:56 PM >

_____________________________

There is no replacement for displacement

(in reply to cossack71)
       Post #: 35

RE: World's Fastest RC Monster Truck is................. - 8/19/2007 6:00:37 PM   
cossack71


 

Posts: 83
Joined: 7/17/2006
From: Battle Ground, WA, USA
Status: offline 		Agreed, but I never said turbo. Not all Porsche or Lotus run them (I'm a former Lotus mechanic back in the 70's) The Lotus Europa was the only car I ever owned, and worked on that could redline in 5th gear, Why? Little high rev 4 cylinder (1.6), low weight, great gear spread, aero package etc. And not all Porches are turbo, but they are small flat 6, high rev, great gear package.
The weight is a very big factor, and the Lipos are a big help to the electrics, low weight, high output, hooked to a motor that turns high revs.
100+ is a goal, but not one that everyone will want to own. Biggest problem would be, where do you run it? Not all of us have spaces that wide open.
Speed yes, I think quickness (acceleration) is much more important. When I run at the track, I want to just blast out of the corner, but I also want to slow down before the next. So balance is important also.

(in reply to gravediggerracing)
       Post #: 36

RE: World's Fastest RC Monster Truck is................. - 8/19/2007 6:10:09 PM   
gravediggerracing



Posts: 3806
Joined: 7/21/2005
From: SW Burbs of Chitown, IL, USA
Status: offline 		It all depends on how fast they can hit 100mph. The faster it hits it, the less space you need to run it. Look at RC drag cars. They hit insane speeds in less than 200 feet. Add a little distance to that for a non drag type car and you could still easily run in a parking lot or the street in front of your house. People will find a way, trust me.

_____________________________

There is no replacement for displacement

(in reply to cossack71)
       Post #: 37

RE: World's Fastest RC Monster Truck is................. - 8/19/2007 6:15:19 PM   
gravediggerracing



Posts: 3806
Joined: 7/21/2005
From: SW Burbs of Chitown, IL, USA
Status: offline
quote:

ORIGINAL: cossack71

Agreed, but I never said turbo. Not all Porsche or Lotus run them (I'm a former Lotus mechanic back in the 70's) The Lotus Europa was the only car I ever owned, and worked on that could redline in 5th gear, Why? Little high rev 4 cylinder (1.6), low weight, great gear spread, aero package etc. And not all Porches are turbo, but they are small flat 6, high rev, great gear package.

I agree, but in today's modern European performance car, the turbo charger is more common than not. And why not? Turbos can make sick power/torque and do it efficiently. A win-win for the manufacturers/tuners.


_____________________________

There is no replacement for displacement

(in reply to cossack71)
       Post #: 38

RE: World's Fastest RC Monster Truck is................. - 8/19/2007 6:34:36 PM   
supertib


 

Posts: 3713
Joined: 3/30/2004
From: , MB, CANADA
Status: online 		I think you guys are really missing the overal picture here....... There is soo much more to this hobby then whats fastest... Honestly do any of you think going faster is really a issue worth even considering ? Yes brushless systems are faster, but really going fast is not really that much of an issue if you ask me... Nitro vehicles are already faster then the limits of control, brusheless are purely overkill.... I mean seriously whats the point of going 100 mph when the vehcile is a RTR peice of junk, you seriously cant control a vehicle properly at those speeds, and if you do ever attain those speeds rest assured you wont be making too many passes.... With huge power comes huge maintenance, drivetrains melts, tires melt, crashes cause massive damage... I seriously could care less if a brushless has 20 mph more thne my nitros, as currently my nitros are faster then i can use.....

As well the limits of nitro arent in making power, the limits are finding a clutch sytem that can hold the power, in Truggies we are finding that todays high powered motors are too powerful for the avaialble cluthing systems...... There is no real need for nitro engines to become faster and more powerful, as seriously todays vehicles and mechanical components are truly not meant to be handling the type of power we already make....

I like brushless, but i much prefer the sound and characteristics of nitro.. the sound and feel of these motors is something special the brushless will never capture , there is alot more to this argument then what is faster, to me even if brusheless is twice as fast I am still not buying into it... I love the smell, feel, sound, and excitment that nitro offers..... On a track having 1 nitros running is awesome, it has such adrenaline and exceitment....Brushless sounds like a bunch of sewing machines... sure they are straightline fast, but whan can you really use that speed anyways.....



_____________________________

seeing is believing !

(in reply to gravediggerracing)
       Post #: 39