rc cars

nibbler125 · Mon Nov 03, 2008 1:23 am

if you have any rc stuff please list them i an curiose if anyone else is big into rc... i have a few rc helies from e sky and exceed also i used to be big in rc cars im saving up to get a micro t at the moment can anyone tell me if it is any good

sniper hero · Mon Nov 03, 2008 4:43 am

I have got a hotbodies gt10 sport

its a 1-10 scale monster truck on nitro

if well tuned it gets up to 80km/h
has ayone a video of his car?

SpudBlaster15 · Tue Nov 04, 2008 12:48 pm

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ammosmoke · Thu Nov 06, 2008 10:44 pm

I get about 35 minutes of runtime with the VXL brushless setup and a 3200mah 7.2volt NIMH humpback battery. Mah is just how much juice the battery can store (runtime). Volts is how much power (speed) the battery can dish out. Unless you have a special ESC that can take LiPo's you will ruin either the LiPo or the ESC by using LiPo. You also have to have a special charger adapter unit, or "battery balancer" which costs about 50 bucks. LiPo's do get better battery life, and they do weigh less for the equivalent NIMH mah and voltage. ESC's can easily be overwhelmed if they aren't designed for a certain amount of voltage. The VXL setup is rated for 8.4 volt LiPo's, but idk what the normal one is.

Oh, and I'll look into tightening my gear mesh.

nibbler125 · Fri Nov 07, 2008 12:07 am

cool i lost track on how much i spent in upgrades for my cars

jon_89 · Fri Nov 07, 2008 12:28 am

Wow 35 minutes. Is this going on the throttle easy or are brushless setups that efficient?

starman · Fri Nov 07, 2008 1:10 am

ammosmoke wrote:I get about 35 minutes of runtime with the VXL brushless setup and a 3200mah 7.2volt NIMH humpback battery. Mah is just how much juice the battery can store (runtime).

That's a good size battery pack, mah wise. Mah actually means milliamp hours. or 3.2 amp hours and as you indicated means a relative runtime for any specific load. Pull 3.2 amps consistantly and you'll run about 1 hour. Pull 1.6 amps consistantly and you'll run about 2 hours.

For 35 minutes, looks like you are pulling an average of 5 amps or so....probably close to the limit of the battery itself.

ammosmoke · Sat Nov 08, 2008 5:26 pm

jon_89 wrote:Wow 35 minutes. Is this going on the throttle easy or are brushless setups that efficient?

I go all over the place with the throttle, and I am by no means driving efficiently. Brushless setups are VERY efficient.

starman wrote:
ammosmoke wrote:I get about 35 minutes of runtime with the VXL brushless setup and a 3200mah 7.2volt NIMH humpback battery. Mah is just how much juice the battery can store (runtime).
That's a good size battery pack, mah wise. Mah actually means milliamp hours. or 3.2 amp hours and as you indicated means a relative runtime for any specific load. Pull 3.2 amps consistantly and you'll run about 1 hour. Pull 1.6 amps consistantly and you'll run about 2 hours.

For 35 minutes, looks like you are pulling an average of 5 amps or so....probably close to the limit of the battery itself.

Yeah, Millamp Hours makes sense. 5 amps sounds about right actually. I believe the motor is rated for 7. But, I believe the battery can support a higher draw than 5 amps, as it has high-flow traxxas connectors, and it isn't hot after a run. However, it would be almost pointless to use such a battery for a motor that required much more than 5. As I said before, you can get 8.2V 8400mah LiPo's for these things... My VXL ESC can accept these!

EDIT: I take that back... It's 8000mah and 11.1v.

SpudBlaster15 · Sat Nov 08, 2008 8:08 pm

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ammosmoke · Sat Nov 08, 2008 8:18 pm

Why? If I upgrade the batteries I can get 75mph top speed and all the instant power I want! Besides, with the new electric (waterproof!) Revo.... What is so great about nitro anyways? (Besides sounding cool)

jon_89 · Sat Nov 08, 2008 11:07 pm

That is the only reason like my tmaxx 2.5 is because of the sound. I dont think I will go lipo except for my rc18mt. Do you guys know the difference between the castle sidewinder micro and the mamba micro?

SpudBlaster15 · Sun Nov 09, 2008 12:58 am

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jon_89 · Wed Nov 12, 2008 1:15 am

I put a mamba 6800kv brushless setup in my rc18mt and all I got to say is oh my god. I can barely control it at take off and to think I am only running 7.2v when I can double that.

ammosmoke · Sun Nov 23, 2008 1:58 am

SpudBlaster15 wrote:
ammosmoke wrote:Why? If I upgrade the batteries I can get 75mph top speed and all the instant power I want! Besides, with the new electric (waterproof!) Revo.... What is so great about nitro anyways? (Besides sounding cool)
You're not going to hit 75mph with a VXL system... My Savage will come very close to 50mph running an engine that makes nearly 2 real world HP, not manufacturer claimed HP.

I prefer nitro because running electric vehicles is a bit like watching an action movie on mute, or putting a silencer on a black powder cannon. Nitro engines are also more powerful than brushless motors, until you start to get into the high end (EXPENSIVE) setups. Also no batteries to constantly charge (Other than receiver batteries and glow plug igniters, both of which last for hours on a single charge).

The E-Revo is nice, but it wouldn't be able to withstand my driving style, much like the Nitro Revo. Not a fan of Traxxas here.

Umm... Yes it will go 75.

My battery only takes about an hour to charge, and I have more than one. Electric by nature has more torque and more RPM's than nitro. But, I don't really do a ton of big air jumps like you so... Yeah.

jon_89 wrote:I put a mamba 6800kv brushless setup in my rc18mt and all I got to say is oh my god. I can barely control it at take off and to think I am only running 7.2v when I can double that.

Yep, thats the stuff!!

jon_89 · Thu Dec 18, 2008 11:46 pm

Finally I got a video its not much but hey its a video and there will be more.http://www.youtube.com/watch?v=Vx2CC1y2Jmc. Sorry for taking so long.

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