Granite Stock Granite mega 4x4 question

[benc2]

My son has a stock granite mega 4x4 . I was wondering if I could put a 3s battery in it . We would like some more speed and runtime .

 

[FlipSide]

I don't think the ESC and/or motor will support a 3S battery.

You can put a 2S battery with low C rating, but that's it. This is what I did for my son's MEGA (Reaction 2S 5000mAh 20C)

 

[benc2]

I don't think the ESC and/or motor will support a 3S battery.

You can put a 2S battery with low C rating, but that's it. This is what I did for my son's MEGA (Reaction 2S 5000mAh 20C)

Is it faster with that battery? And how long will it run?.

 

[FlipSide]

Is it faster with that battery? And how long will it run?.

Unfortunately, I did not have the chance to use it. I just bought the battery and we are buried in snow at the moment.

 

[Mustangman66$]

Are using the nimh pack at the moment if so a 3 s battery will destroy your diff inputs. 2s is longer runtime depending on ur size. It will get up to top speed a lot quicker.

 

[jondilly1974]

A 2S lipo is the max you can run speed wise. You could fit a 7600mah pack for sure. I’ve ran one myself. Possibly an 8000mah pack, but just be aware that the larger the pack, the greater the chance you will overheat that motor. Best bet is get two 5000mah 2S packs and give the motor a 5 min break between packs to cool off. If it was the BLX model you could run longer and faster.

 

[benc2]

well I got a 8000 mah battery and well …. we have smoked the 550 brushed motor … so now im asking what a good brushless motor would be ?

 

[Warby]

8000mah? That's a big fuel tank for brushed. Did you let it cool down a couple of times or run it till LVC?

 

[benc2]

8000mah? That's a big fuel tank for brushed. Did you let it cool down a couple of times or run it till LVC?

Ink we did not Untill we started smelling something. Then it was to late . We let it cool down and now it will not run at all. Live and learn.

 

[pl9171]

My son has a stock granite mega 4x4 . I was wondering if I could put a 3s battery in it . We would like some more speed and runtime .

I did the test: the ESC support the 3s battery but not the motor. But my ex-550 brushed motor did nearly 1 month in 3s;

https://www.arrmaforum.com/threads/after-1-month-of-running-in-3s-on-old-mega.11034/

Not full throttle and ESC is still ok.

 

[Bullfrog1287]

I just finished converting my Granite Mega to brush less. I used Jenny's Rc to get a BLX motor and ESC, picked up the BLX aluminum motor mount and a HD input for the rear. I ran a Spektrum 2s 5000 30c Lipo in it until the stock input sheared off then threw in the HD version. So far so good I probably wont go to 3s anyway so I don't see the need to put the BLX diffs in may eventually swap in the BLX slipper but as of now the Mega version is holding just fine.

 

[benc2]

Thanks bullfrog. Would you happen to have the part numbers to all of that ? Thanks

 

[Bullfrog1287]

https://jennysrc.com/collections/ar...l-senton-10th-ar102666?variant=12599665328182

https://jennysrc.com/collections/ar...4-pole-senton-ar102666?variant=12599674470454

https://jennysrc.com/collections/ar...inum-red-mount-motor-senton-big-rock-ar102666

https://www.amainhobbies.com/arrma-...MI5MGH07-k6AIVFKSzCh36iwBCEAYYASABEgJz9PD_BwE

As far as Jenny's RC goes just check them continuously look on their Ebay store also. They have the best prices by far. Also you will need a new pinion since the shaft on the brushless motor is 5mm.

 

[benc2]

Thanks a bunch ! I will be ordering tonight!

 

[benc2]

15t on the pinion ?

 

[Bullfrog1287]

Yep 15t

 

[Bill K]

A mild, inexpensive brushless update to my Mega 4x4 has turned it into a really decent back yard basher. Think I went thru 4-5 brushed motors (all under warranty) before wising up and doing the brushless upgrade. Good luck with yours.

 

[Bullfrog1287]

A mild, inexpensive brushless update to my Mega 4x4 has turned it into a really decent back yard basher. Think I went thru 4-5 brushed motors (all under warranty) before wising up and doing the brushless upgrade. Good luck with yours.

Have you run yours on 3s?

 

[benc2]

Have you run yours on 3s?

Do you remember what you put in there ? I seen the surpass 3660 on eBay for what looked like a good price but could not find any reviews.

 

[Bullfrog1287]

If you're referring to mine I have the Arrma BLX system from a Granite BLX in mine should be 3200.