Please help with G2R Brushless suggestions
 

Ive been reading these forums for a while but Im unsure about the proper setup I should go with.

Im building an G2R and will go with the single speed tranny conversion.

I want something fast but willing to sacrifice some speed for longer run times (not racing it).

How would you set this up (ESC, Motor, batteries) and what speeds / run times could be anticipated with the setup suggested?

Thanks all.

I'd run Maxamps 8000mah 2S2P Lipo's with a Mamba Max ESC w/ a UBEC and an 8XL or 9XL, or possibly a 10XL motor.

The 10XL wont be very fast but you will get ages of run time (easily over an hour) with the batteries I mentioned.

I think a good balance would be the 8XL (or maybe the 9XL). I would assume runtimes around 45-50 minutes are easily possible with those packs.

The 8XL will give a nod toward speed, while the 9XL will give a nod toward run time. But they both won't be too far off from eachother (speed will be within 3-4mph and runtime will be within about 5-7 minutes).

If you dont mind the extra weight, you can try the 12000mah 2S3P Lipo's. They weight more than a 7 cell pack (while the 8000's wiegh less than a 6 cell pack). However, obviously, they have 50% more capacity than the 8k's.

man 1200 and a 10xl with batteries like that he would be counting down the time untill the battery would be dead it would be like 1.5 maby 1.75 hours.

12000's and a 10XL would be over 2 hours of runtime probably...

Its hard to tell. Gearing, driving style, terrain, and alot of others things affect runtime greatly.

Bashing around, I could get up to 25 minutes on GP3700's. At the track, that dropped to 14-18 minutes (depending on track layout and how aggressively I drove) and all out speed runs would drop it to 10-11 minutes.

Bearings could probably affect runtime by up to 15%. Old gritty bearings would kill runtime, while brand new ceramic ones would boost it pretty noticably.

1.5 hours on a charge LOL. That's working.

man 2 hours that is a lot of time

I think alot of people would get bored if nothing broke during the run . .lol

Are you kidding me. I am so damn tired of my truck breaking all the time. In fact. I wish I had a truck that didnt break, which also had 2 hour runtimes. If I was really lucky it would bore me of RC's and I could finally give up this expensive addiction.

Heh Ill try to keep the breaking to my Jato ~ ~ A lot cheaper to fix that than this beast when all done. :)

Yeah one of those jatos would be sweet for abusing. Wish mike sold a conversion for them.


Someone sell me a brushless Jato LOL.

You should just build one. They are super easy to convert - like a buggy but easier I think. Since it's 2WD, there's no driveshaft to get in the way so there's plenty of room for parts, batts, etc. The hardest part is the motormount, but even that is relatively easy since there are no mesh slots to try to create.

I don't have the tools or the knowhow to build a custom motor mount. Maybe I could pay someone that has done it already to build me the motor mount. The rest I could handle.

Lol. I used a hacksaw, a dremel, and some files. Not exactly high-end equipment. It's cheap too - just the cost of angle Al from onlinemetals.com. But it does take a while to make without the proper equipment.

If its that easy to make, then why the hell isnt Mike selling the motor mount so we can all have 75mph brushless Jatos?

Lol. There aren't nearly the number of people who want to make these than there are with Revos, Maxxes, etc. Besides, since the stock 3.3 is so fast, it's kinda expensive to make a 75mph Jato...

Yea a stock 3.3 is really fast.

It will probably still go like 40mph even with the motor shut off :p



Edit: Wouldn't a MM5700 on 3S propel it to at least like 65? I've heard of people getting like 40 on just 2S with a 4600...

LOL. Even with the motor shut off? lol. You sound like a Nitro-head. :005:

The 5700 on 3s is about the same speed as the 4600 on 4s. Either one will run kinda hot I would think. I did run 14 GP cells in my Jato "just to see" and blew the rims on both sides (probably from the tires ballooning so much). I can't even begin to guess how fast it was but it was screaming and made the previous top speed of ~45mph seem like a turtle. :)

Well, I was saying 3S because I still wanted to use the BEC. But yea...it should go really really fast is my point. And if not...hello lehner motor hehe...

my friend has a jato 3.3 One word to explain it UNCONTROLABLE it goes like 70 mph it is insane.

Umm...it doesn't go "Like 70" it goes 65...

it goes like 67 plus he has the resignator that is more for top end rather than acceleration like the stock 3.3 comes with in rc car action they tested it at 67 and his is jsut a tad faster and it is lighter so i rounded it up so it is really like 78.9 or 79. something not that big of a difference

My Jato is a 3.3 and it flies... probably like 65ish. The problem I was having was about 45+ the front end gets lifted by the wind so I adjusted some things around and also put a wing on the back to try to maintain stability and increase downpressure (adjustable wing), plus softer springs/shocks. I moved the battery pack to the middle of the truck as well.

Ill post my E Revo and the project progresses. Thanks guys.

Heres a couple of pics of the Jato.

http://i137.photobucket.com/albums/q...in60/Jato3.jpg

[IMG]http://i137.photobucket.com/albums/q...60/Jato3-1.jpg[/IMG]

10mph is a huge difference...

The Resonator adds power, but not THAT much...I have a Resonator on my Jato. It helped, but didn't help 10mph....

Well, how do you know how your buddy's Jato compares to RCCA's Jato?

My only point is that you seem to be estimating the speed, and exagerating it at the same time (not saying you that you definitely are, but it seems so very much).

Its very easy to tell when someone may be doing this, because they say "like this fast" or "like that fast" and the speed is never consistent, and it just gets lower and lower the more it is questioned.


That a good looking Jato Larain...looks really clean - which is a good thing since it means you haven't flipped it - can't say the same for myself...the thing lifts the front end so fast sometimes I can't let off in time.

crap i am so sorry i meant 68.9 or lile 70 flat. i am so sorry that made me look really stupid.

i ment in rcca they tested a stock 3.3 jato at 67mph and my friends is a tad faster and much lighter and it contains one of two resignator pipes one helps more on top end the other on acceleration so he has the one for top end so at the most he is getting about 4 more mph out of the car than the stock 3.3 is clocked at. so sorry that was a typo.

Hey any sub $100 radar guns that you guys know about Ill pick one up and test various setups on my stuff.

No matter how fast the jato runs with nitro it will be FASTER with Brushless!!:027:

Thank you,
Promod

Yea...a proper BL system will rocket a Jato to 100mph easy if you can keep it on the ground. This is because the Jato's layout allows you to mount just about any motor you want. Get a super low KV Lehner 1950 and run 12S lipo with the Castle Creations Pheonix HV125 ESC and run the stock mechanical brake (since the ESC doesn't have brakes) and you got yourself one FAST Jato.

As for the Resonator Pipes. One doesn't just increase acceleration and the other top end, they both just boost power in different ranges. This power boost translates into different running characteristics. The Dual Chamber increase mid to high power, while the Single Chamber increases low end grunt.

His Jato is most likely faster than a stock one, but I dont think you can accurately guess its speed. You need a radar gun.

Speaking of a radar gun, you can get a Bushnell one for less than 100 bucks off ebay.

http://www.rc-monster.com/forum/show...2363#post82363