brusless g-maxx
 

I have an emaxx with the gorilla g2 chassis and g3 suspension im looking for a brushless setup that i can run inside during winter and outside during the summer (just add cells or adjust throttle in the radio for the summer). maybe a 9xl and 9920 control.
im 14 without much$$ currently running borrowed hv maxx but iwant more power
andy

welcome to forums, thats a great setup. Dont forget about the #s of cell. a XL motor would cost more, and also you woul dneed to buy more cells. But u get longer runtimes and insane power.

thanks what gears and how many cells would i have to run not lipo cells

I hear a 7XL on 16 cells with a 9920 controller is a good setup. Can your chassis accomodate 16 cells without any major mods?

I belive the gmaxx chassis can handle 8 cells per side with no mods.

My question is how long do you race. Welcome to the fourm boss 302

the indoor track i race at during the winter is small and dont get 2 race long heats and mains(3, 5min heats and a 5min main)
iwant to have long run time with max speed 40+mph
the chassis can handle 8 cells per side what gears should upgrade
andy

40mph+ with g-2 chassis and g-3 race suspension? Your truck wont hold up too long at those speeds with those parts, we are talking big bad monsterous motors here, they will eat your diffs.

what diff and tranny gears would i have to run along with any other parts

you would need idler gears from mike, strobe slipper since you would need new pinions anywho, and maybe some diff cups and shim them properly. if i were you i would go for flm hybrid bulks but since your on a tight budget i would just get aluminum cups.

u dont need that long of a runtime with 9xl! u can get 1/2 an hour wich is overkill. I say go with 7xl, i heard people get 15 minute runs outta them. why would u want speeeds like that? U said that your track was small, and i bet there isnt much space to go that fast.

i want good runtime for the summer power how much of a differance is there between the9xl and 7xl

coolhande gets 25 minutes on average.

I get 10min on 7xl and 25min on 9xl. Maybe check into a 8xl. I can not say about run time on these. your truck should be fairly light with the suspension you are running.

Whats the power like on a 9XL though? I bet its great for racing, but not so good if you take the car to an open area.

www.rcpic.net/members/coolhandcountry

Look for your self. basic you can be the judge. I don't race. I am hard on my trucks though. :D Maybe I should lighten up. I can't do that. :lol:

the link isnt working for me. what cells are running also how hard are the 7xl and 9xl on the controller(9920) and how reliable are they

I run a 9xl currently on a 7020 with no problems. The 7xl was run on a schulze 18.97. The right gearing with 7xl is not problem. click on the website at the bottom of post

does anyone know what the 8xl is like

coolhandcountry, looks like your setup on 16 cells has very good power..dunno what sort of speed you was hitting in the video, but it did have impressive torque. On 12 cells it looks pretty medicore, but good runtimes I guess.

Given the choice, I think i'd still go for the 7XL on 16 cells, but I like balistic power, for runtime you can get IB4200 NIMH's or high capacity lipo's anyway :)

I am currently running the 7XL with the 9920 with 16 GP3300 cells in my savage. The gearing is 12/51. The motor and esc gets under the hand warm tempeture. So it rusn really cool. I can gear higher if I want. With the 12 pinion I can get a really nice speed and runtimes are 10/15 minutes.

Here is an video of the BL J-savage :cool:

http://www.rcpics.net/media/Brushless_J-savage.wmv

That is not what 16 cells are capable of mate.. you need a bigger pinion for sure! (unless you like this speed?) I thought you where a speedfreak too.. ;)

what is this BEC and UBEC stuff? no one around here seems to know much about brushless.

UBEC is an external BEC device that takes power from the main battery and regulates it down to 6v for use with the receiver. It replaces a receiver battery pack or the controller's BEC.

People here don't seem to know much about brushless, huh? You might change your mind on that if you look around a bit. There are some awesome people here that know a LOT about brushless, but maybe you are expecting too much without asking the right questions.

i ment where i live

People here don't seem to know much about brushless, huh? You might change your mind on that if you look around a bit.
i ment where i live the only no alot about novak sorry for the confusion:o

u guys know alot

Okay, that is better :). Usually in an area not too many people will know more than what they see with Novak when it comes to brushless, as they are ignorant little brushed people (hehe). I'll bet that 75% of the people that race at the nearby track (Socal RC Raceway) don't know what sensorless means.

everybody i race runs a novak of somekind i personally didnt know what sensorless ment until i looked here the owner of the track didnt know nor did anyone else i could find.

what are the advantages of the external UBEC device over the controllers BEC device?

Generally it can handle more power than the BEC on the controller. Also, if you do something to smoke the UBEC, it's a $35 fix. If you smoke the one on your speed controller, it's a $200 fix. :eek:

Cheap insurance.

Michael

thanks i think i will pay th extra $35 dollars when i by the controller and motor
andy

is there anything else i should know about these motors and controllers

Only that you should have fun :). Just keep the controller away from water, and put a piece of tape over the rear bearing on the motor to keep debris out of it.

Just to make sure i can use the UBEC device with the warrior 9920 and a bk 8xl or 9xl cant i? and what temps would the controller and motors run(so i know what to expect)
Andy

yes you can use a ubec and the controller shouldnt go over about 150 at most and motor about 160 but with that motor and setup with a ubec it should run way less.

What would the temps with ubec be like and is there a way to hook up a fan up to the controller?

What connectors would i need to get to hook the controller to the motor. I currently use deans for my batteries
Andy

from the motor to the controller you would use these. not sure on the ubec temps but 10 degrees cooler would be my guess.

I don't think you can compare the temp of the controller with BEC to the temp without BEC. The BEC chip doesn't touch the heatsink, and it is on the underside of the controller. But, it certainly won't get hot if a UBEC is used.