The Arrma 4x4 Mega Granite/Senton is a pretty solid platform out of the box, but like most any other RC there are some weak points that can certainly be improved upon. Below we'll look at a few of those weak points and provide alternatives to fix said points.
If the Arrma Mega 4x4 is your first RC then there are going to be a few things you'll need first.
Batteries - The Arrma 4x4 Mega supports either a 7 cell NiMh or 2S LiPo battery pack.
My recommendation would be to go with a 2s LiPo pack and would suggest checking out SMC LiPo battery packs. However if you are looking for a list of suggested brands check out our "Budget LiPo of choice" thread.
LiPo Charging Sack - If you are going to go with a LiPo battery you MUST use a LiPo charging sack. These things are silly cheap and offer a huge amount of protection in the event a LiPo starts to go south.
*If you are not using a LiPo battery you can forgo getting a charging sack*
Battery Charger - For someone getting into RC and looking for a good bang for their buck, I would recommend checking out the Dynamite Prophet Sport Duo charger. It will easily charge dual 2S LiPo or 7 cell NiMh packs at the same time allowing you to get back to racing/bashing quicker.
If you want other suggestions, check out our Recommend me a battery charger thread.
4x AA batteries - The 4x AA batteries are used in the transmitter that is included with the Arrma 4x4 Mega trucks. I'm would recommend getting Eneloop rechargeable batteries. Either the Panasonic Eneloop or Eneloop Pro (higher capacity, longer run time).
That about wraps up the required items, now onto the recommended Arrma Mega 4x4 upgrades!
Servo - Soon after the Granite/Senton 4x4 Mega trucks was released, several people reported issues with the included servo.
An inexpensive upgrade would be the Savox SW-0231MG servo which has metal gears, faster and MUCH stronger than the stock servo - and it's also waterproof. A near bulletproof upgrade (maybe even a bit over kill ) would be a Savox SW1211SG or Savox SC-1256TG digital servo (probably want to pick up a BEC while you're at it too if you go with the 1256 servo).
Servo Saver - In the same breath we recommend a new servo, the stock servo saver is in need of some help as well. I don't think the stock servo saver hasn't saved many servos and looks like a knock off of a Kimbrough.
Skip the issues and get a legit Kimbrough #123 servo saver instead.
Shocks - We get a lot of questions about this one and right now these are the most commonly suggested and used shock upgrades:
Bearings - I've said it before and will say it again, stock bearings in nearly any RC stink. Get yourself a set of NICE bearings from Team Fast Eddy - he offers both a Granite and Senton bearing kit for the Mega 4x4's.
Aside from the above, there have been several people ask about 17mm hex adapters and a common reply is to buying a set of these 17mm adapters that so far seem to be working very well for members here.
Finally I would suggest anyone looking for more information, tips and other mods check out these useful threads below:
Please, if you have other suggested upgrades, mods or tips for the Arrma 4x4 Mega Granite or Senton trucks please share below!
If the Arrma Mega 4x4 is your first RC then there are going to be a few things you'll need first.
Required items for an Arrma 4x4 Mega
Batteries - The Arrma 4x4 Mega supports either a 7 cell NiMh or 2S LiPo battery pack.
My recommendation would be to go with a 2s LiPo pack and would suggest checking out SMC LiPo battery packs. However if you are looking for a list of suggested brands check out our "Budget LiPo of choice" thread.
LiPo Charging Sack - If you are going to go with a LiPo battery you MUST use a LiPo charging sack. These things are silly cheap and offer a huge amount of protection in the event a LiPo starts to go south.
*If you are not using a LiPo battery you can forgo getting a charging sack*
Battery Charger - For someone getting into RC and looking for a good bang for their buck, I would recommend checking out the Dynamite Prophet Sport Duo charger. It will easily charge dual 2S LiPo or 7 cell NiMh packs at the same time allowing you to get back to racing/bashing quicker.
If you want other suggestions, check out our Recommend me a battery charger thread.
4x AA batteries - The 4x AA batteries are used in the transmitter that is included with the Arrma 4x4 Mega trucks. I'm would recommend getting Eneloop rechargeable batteries. Either the Panasonic Eneloop or Eneloop Pro (higher capacity, longer run time).
That about wraps up the required items, now onto the recommended Arrma Mega 4x4 upgrades!
Most Recommended Upgrades for the Arrma 4x4 Mega
Servo - Soon after the Granite/Senton 4x4 Mega trucks was released, several people reported issues with the included servo.
An inexpensive upgrade would be the Savox SW-0231MG servo which has metal gears, faster and MUCH stronger than the stock servo - and it's also waterproof. A near bulletproof upgrade (maybe even a bit over kill ) would be a Savox SW1211SG or Savox SC-1256TG digital servo (probably want to pick up a BEC while you're at it too if you go with the 1256 servo).
Servo Saver - In the same breath we recommend a new servo, the stock servo saver is in need of some help as well. I don't think the stock servo saver hasn't saved many servos and looks like a knock off of a Kimbrough.
Skip the issues and get a legit Kimbrough #123 servo saver instead.
Shocks - We get a lot of questions about this one and right now these are the most commonly suggested and used shock upgrades:
- Alternative shocks listed in this thread https://www.arrmaforum.com/threads/...ck-crew-cab-and-vorteks-shock-upgrades.42570/
Bearings - I've said it before and will say it again, stock bearings in nearly any RC stink. Get yourself a set of NICE bearings from Team Fast Eddy - he offers both a Granite and Senton bearing kit for the Mega 4x4's.
Aside from the above, there have been several people ask about 17mm hex adapters and a common reply is to buying a set of these 17mm adapters that so far seem to be working very well for members here.
Finally I would suggest anyone looking for more information, tips and other mods check out these useful threads below:
- Jerry-rigged's Granite Mega 4x4 build thread by @Jerry-rigged
- Arrma Granite 4x4 6S BLX build thread by @Megasty
- Mega 4x4 how-to videos thread which include several videos on how to maintain your Mega 4x4.
- Mega 4x4 Diff Input Gear Mod by @Megasty
- Long Arm CVD Mod thread by @HZRDOS
- Fix for Sloppy Bell crank thread by @Stevenj76
Please, if you have other suggested upgrades, mods or tips for the Arrma 4x4 Mega Granite or Senton trucks please share below!
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