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chevy prerunner/trophy truck build

So your saying it might get to hot by over loading the battery? Would it be more benifital to get a slash transmission?

If your gearing is wrong, you could be pulling more amps than what your battery is rated for. Which is how a Lipo becomes puffed and dangerous to run.

I have no idea about a Slash transmission because I never run those type transmissions. I only run RC4WD crawler boxes and Axial transmissions.
 
If your gearing is wrong, you could be pulling more amps than what your battery is rated for. Which is how a Lipo becomes puffed and dangerous to run.

I have no idea about a Slash transmission because I never run those type transmissions. I only run RC4WD crawler boxes and Axial transmissions.

Ok thx I'll look into it.
 
So do you have the same Ecs as me? Would a lipo battery work on it or will I have to get a charger and a battery and an Ecs?

I am running a waterproofed Bx-lr.

You can run a lipo on any ESC so long as you stay under
that ESCs voltage limit.

So if your ESC is rated for only 9.6 volts, you can only run a 2s lipo (7 volts).

With that said, a 2s lipo will out perform a 9.6 volt Nimh pack anyday.

If that ESC is not Lipo rated, then all you need is the charger/balancer, the batter(s), and a lipo alarm.

The alarm will keep you form over discharging the battery.

and on the amp draw, i not even considered that as a problem, but you are
right.
 
Ok so one thing I have to say is that I am surprised, these tires are amazing this truck is a 2wd and it made it up a pretty steep hill with leaves and loose slippery dirt! There great.


I was driving the truck. Nothing has broken yet. But I think I'm gonna change the angle of the arms. Whenever I hit bumps and stuff it doesn't use the stroke of the shock very much. And I'll do that when I make a new skid plate. Maybe sooner I just have to drill four holes.

She is runnin good little slow but it's going good, every thing is holding up.


I called up the hobby store. The guy told me to go for an axial transmission and set that up first get the gearing done right and then eventually switch to a lipo. That way I don't take a chance of blowing anything up haha. So I'll get that soon.
 
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what would you blow up???

gear sets for the creeper are 10 bucks and other than being a pain the butt to set lash on, they have no issues.

like I said, the final output ratio is about the same as the axial. I have not had a creeper fail due to wear, just misuse.

you are going to end up with Lipo anyways, i would change your battery chemistry first. Sounds to me like your LHS
guy either just wants to sell you Axial parts or has no experience with anything other manufacture.

With a build like yours, that is a pretty narrow minded individual to be relying on for guidance. let me guess,
he wants $30 for a 1600 Mah 2s.
 
what would you blow up???

gear sets for the creeper are 10 bucks and other than being a pain the butt to set lash on, they have no issues.

like I said, the final output ratio is about the same as the axial. I have not had a creeper fail due to wear, just misuse.

you are going to end up with Lipo anyways, i would change your battery chemistry first. Sounds to me like your LHS
guy either just wants to sell you Axial parts or has no experience with anything other manufacture.

With a build like yours, that is a pretty narrow minded individual to be relying on for guidance. let me guess,
he wants $30 for a 1600 Mah 2s.



Oh I don't know what he wants for one I would get one on line anyways. But. I just figured with the axial transmission I can put a smaller pinion gear for better speed. And blow up a battery not a gear.

What kind of lipo are you using?
 
i run turnigy and Zippy, i get them through Hobbyking.com

you can run smaller now....I dunno, i think if you got that route you will be putting the cart before the horse so to speak.
 
i run turnigy and Zippy, i get them through Hobbyking.com

you can run smaller now....I dunno, i think if you got that route you will be putting the cart before the horse so to speak.

I looked them up on eBay and for a 2s 5000mah it's like $30 and I can get one with the connection I need for my Ecs. But then I also will have to pay another $10 for a charger I don't have a lipo charger currently.

What exactly do you mean by your figure of speech?
 
i run turnigy and Zippy, i get them through Hobbyking.com

you can run smaller now....I dunno, i think if you got that route you will be putting the cart before the horse so to speak.

Holly crap I just looked at the site u suggested and dang they are cheep thx man.
 
What is the difference in the number next to the c?


make sure you are ordering from a local warehouse, if your are in the US then you want to order the one at the US warehouse.


that is the discharge rate, higher is better. This is mostly for Throttle punching, from dead stop to full throttle, or hard acceleration.

it is a fine line between, C rating, MAH, and weight

A higher MAH runs longer but weighs more

A higher C will discharge faster thus needing more MAHs to run longer.

for crawling the rule of thumb seems to be 25 to 30C. we are not going terribly fast and don't generally need sudden wheel speed. So we can stand to have a slower discharge rate.

MAH is up to the operator. I prefer to have a large capacity and much heavier battery in my scaler so i run a hefty 5000 MAH 3s. I can run for a few hours straight trailing and the weight works to my advantage.

My MOA on the other hand is 3 small batteries, two 1600 MAH 3s for the drive train and a 2000 MAH 2s for the servo and receiver. It is more Comp-like and needs to be lighter.

for your truck i would go with a higher C rating, 50 to 70C, and around 2000 to 3000 MAH. if you are running 2s, that will last your roughly 45 minutes (this is not an exact science mind you, run times vary based on charge, battery state, outside temp, and how hard you are running)

There is some discrepancy on weather or not a ESC has to be rated for the higher C's, there for do some homework on that before you settle on a battery.

Last thing, you will also see references to "The MAH being 1C of the Amperage" , might be the other way around. this is not the same C rating as above and is important when charging. basically look at it like this:

3000 MAH = 3 amps
1600 MAH = 1.6 amps
800 MAH = .8 amps

See a pattern here?? ;)

Keep asking the good questions man! you are on the right track.
 
I found a 1300mah 25-50c 2s lipo for $5 if I where to buy for it would be $20 and add the mah up and all together with all four it would be 5200 mah or I could get a 5000 mah 25-50c for 22 so yeah if I got four of me I could keep them charged and yeah but idk. Hurt an idea might me a little cheaper.
 
yeah there, if you are good with swapping packs, go for it. I don't like to carry too many spares on the trail so i opt for the big boys. if you are going to be close to the pits, then i see no reason not to go with a lower MAH.

Also, Lipos charge much faster than NIMHs do, a 1300 MAH 2s should charge in 15 to 20 minutes at 1.3 amps. Never charge a lipo at a rate higher than 1C of the MAH. if you will close to your charger, you could probably get away with 2 batteries to start with.
 
Putting the cart before the horse means you are getting ahead of yourself. Doing step B when you should be doing step A





Sent from my RM-845_nam_vzw_100 using Tapatalk
 
yeah there, if you are good with swapping packs, go for it. I don't like to carry too many spares on the trail so i opt for the big boys. if you are going to be close to the pits, then i see no reason not to go with a lower MAH.

Also, Lipos charge much faster than NIMHs do, a 1300 MAH 2s should charge in 15 to 20 minutes at 1.3 amps. Never charge a lipo at a rate higher than 1C of the MAH. if you will close to your charger, you could probably get away with 2 batteries to start with.

So your positive this battery will make my top speed way better?
 
We'll I looked it up and the Ecs has a low voltage cutoff that's why when I got the motor it would stop running. So that's good. But according to this ( http://www.rccrawler.com/forum/venom-creeper/383489-safari-setup-help.html ) my esc will work with a 2s lipo so when I get my pay check I'll order some batteries and get ready for a fun time. I moved front arms last night haven't gotten to drive it yet to see if it fixed the problem but it will help. Don't have pics doesn't really look different so yeah.
 
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