slpcrf450x
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- Arrma RC's
I am creating this thread as a build log of sorts to keep track of modifications, failures, ideas, etc. Not to mention I'm going crazy waiting for some better weather to melt all the snow. I'll use the term "build" loosely because I'm not intending do different electronics unless the stock ones crap out on me. I will try to give credit where credit is due but I will apologize in advance if I miss someone. Hopefully people can find the information here useful in some way.
I bought my Outcast close to Thanksgiving 2016, I had to do some searching to find one in stock. I had next to no experience with RC's. My buddy has a slash that I have driven a couple of times, but other than that a cheap heli and a cheap drone was about it. It was a steep learning curve to jump right into the Outcast. Of course I had just bought some 3s batteries so I threw 2 in for its first run on 6s! Besides being completely amazed by the thing the first 3 packs were ran through it without incident. Held up well, through some improvised jumps and attempted backlfips (doesn't work very well with the 12 tooth pinion.) I even ran into a post head on at near full speed.
Fast forward to December. On the fourth pack through the pinion slipped on the motor shaft, the 12 tooth pinion is small enough that the spur gear damaged the set screw. Not a huge deal but I had to break the dremel out to re-form the hex hole in the set screw in order to get it out.
While I was fixing the pinion I moved the shocks to the most vertical position on the shock towers front and rear and stiffened the springs as much as possible.
Sixth pack through it was cold outside and I landed directly on the rear wing from a pretty big jump, snapped the rear wing right off. Broke both wing mounts in 2 places each. Ordered the RPM mounts and got a backup from Arrma. While waiting for the wing mounts I tore it down to do some maintenance. Pulled the screws out for the center diff and plastic came with the screws. It appeared that the plastic mount in the center diff was stripped at the factory. With some research I found the motor mount mod on this forum and ordered a motor mount to cut in half.
Work done:
Diffs, 20k rear 100k center 30k front.
Tekno orange springs
Straighten both front shock shafts
Straighten front shock tower
Did the DIY servo mount mentioned in the sticky section.
Rear lower hinge pins for the suspension were pretty rusty. Cleaned it up with emery cloth and oiled.
Made the new center diff mount out of a motor mount.
Installed the RPM rear wing mount.
Installed the 16 tooth pinion, the pinion was not perfectly concentric.
Also ground down the screws sticking up into the battery tray, seen here:
While test fitting the new center diff mount it seemed like the surface where the bearing seats wasn't quite deep enough. If you do this be careful not to go too deep or your diff housing will make contact with the mount.
If you want to use the stock plastic piece you have to either modify it or narrow the re-purposed motor mount.
I bought my Outcast close to Thanksgiving 2016, I had to do some searching to find one in stock. I had next to no experience with RC's. My buddy has a slash that I have driven a couple of times, but other than that a cheap heli and a cheap drone was about it. It was a steep learning curve to jump right into the Outcast. Of course I had just bought some 3s batteries so I threw 2 in for its first run on 6s! Besides being completely amazed by the thing the first 3 packs were ran through it without incident. Held up well, through some improvised jumps and attempted backlfips (doesn't work very well with the 12 tooth pinion.) I even ran into a post head on at near full speed.
Fast forward to December. On the fourth pack through the pinion slipped on the motor shaft, the 12 tooth pinion is small enough that the spur gear damaged the set screw. Not a huge deal but I had to break the dremel out to re-form the hex hole in the set screw in order to get it out.
While I was fixing the pinion I moved the shocks to the most vertical position on the shock towers front and rear and stiffened the springs as much as possible.
Sixth pack through it was cold outside and I landed directly on the rear wing from a pretty big jump, snapped the rear wing right off. Broke both wing mounts in 2 places each. Ordered the RPM mounts and got a backup from Arrma. While waiting for the wing mounts I tore it down to do some maintenance. Pulled the screws out for the center diff and plastic came with the screws. It appeared that the plastic mount in the center diff was stripped at the factory. With some research I found the motor mount mod on this forum and ordered a motor mount to cut in half.
Work done:
Diffs, 20k rear 100k center 30k front.
Tekno orange springs
Straighten both front shock shafts
Straighten front shock tower
Did the DIY servo mount mentioned in the sticky section.
Rear lower hinge pins for the suspension were pretty rusty. Cleaned it up with emery cloth and oiled.
Made the new center diff mount out of a motor mount.
Installed the RPM rear wing mount.
Installed the 16 tooth pinion, the pinion was not perfectly concentric.
Also ground down the screws sticking up into the battery tray, seen here:
While test fitting the new center diff mount it seemed like the surface where the bearing seats wasn't quite deep enough. If you do this be careful not to go too deep or your diff housing will make contact with the mount.
If you want to use the stock plastic piece you have to either modify it or narrow the re-purposed motor mount.
