Ultimate RC Home RC Forum RC Videos RC Photos RC Projects & others
Affiliate links:
Not a Member Yet? You're Missing Out!
Sign up in minutes for a free URC Network account and you'll be able to post in over 100+ forum categories, search over a decade of archived topics, exchange private messages with other members, upload pictures to the RC photo galleries, and much more!

Already have an account?
Sign in below!
Sign in:
Reply
Thread Tools
Dr. Isotope's Avatar
"Forum Dwelling Basher"
Dr. Isotope - 12.23.12, 8:15 am Post #91: | Reply With Quote
BillDeLong said
Traxxas doesn't make any race grade cars, these are purely for bashers and frankly adding extra weight to the rear is a good thing if you want to do wheelies easier
But you can easily build a race-capable vehicle off of a Traxxas platform-- so it's a legitimate question. I would choose the RPM over the GH, if only for the choice of a-arm mounts, and the fact that those mounts are plastic. The FLM cases I run are my favorite gearboxes of all, but I've still had to replace the arm mounts because the holes invariably oval-out over time. Plastic arm mounts last a whole lot longer.

I still have an RPM box on my bench waiting to be installed. It appears to be very well made.
There are no atheists in the foxholes / There is no intellect in the air / There are no scientists on the way down / Just a working example of faith versus physics. --El-P, Flyentology
BillDeLong's Avatar
"Did I make the A Main?"
BillDeLong - 12.23.12, 8:23 am Post #92: | Reply With Quote
in that case, the extra weight for the aluminum will do better for your LCG mid motor to help the rear wheels gain some much needed traction, ha!
Club Racer: SCT + eBuggy + GT8e + GT18e + USGT + VTA + M12
Basher:
Monster Trucks + Crawlers + Drifters + Motorcycles

tj_7alberto's Avatar
"I am experienced now?!?"
tj_7alberto - 12.23.12, 3:27 pm Post #93: | Reply With Quote
BillDeLong said
Traxxas doesn't make any race grade cars, these are purely for bashers and frankly adding extra weight to the rear is a good thing if you want to do wheelies easier
Mm.. I didn't think of that, coming from a racing background I always have a mindset dedicated to goin as fast as possible. Although I don't race my rc's.. I built a small track just for the purpose of bring able to do laps!
"Experienced user"
SnoopMaxx - 12.23.12, 5:12 pm Post #94: | Reply With Quote
They used to
I still have my SRT and TRX-3 that I raced in the mid 90ties

Morten
snoopmaxx.com

c",)
downtown0309's Avatar
"Experienced user"
downtown0309 - 12.26.12, 8:46 am Post #95: | Reply With Quote
Just received my RPM gearbox. I put the stock gears in it and got it together. I don't know if it's just my imagination, but it feels a little smoother than stock just by turning it in my hands. It's nice that they don't have the hole in the bottom like the stock case. The only issue I see is that when you look at the bottom front of the case (where the hole is in the stock one), there is a gap large enough to see the differential. Not sure if this will be an issue , but I'm just going to put some tape over it like stock. Here are a few pics with the gears installed.


guys2nv's Avatar
"Just Chillen!"
guys2nv - 12.26.12, 9:03 am Post #96: | Reply With Quote
Looking good, the gap should go away once you get the arm mounts on and mounted to the chassis.
| Serpent 811T-E | Tamiya TRF 801XT-E |
| Hyper 9e | Slash 4x4 STRC LCG |
| Stampede 4x4 | Stampede | Blitz |
| Futaba 4PLS Controls 'em All |

Dr. Isotope's Avatar
"Forum Dwelling Basher"
Dr. Isotope - 12.26.12, 9:12 am Post #97: | Reply With Quote
Mine did not have that gap when assembled. Mine felt a good bit smoother once assembled, but I did put all fresh bearings in when I built it, so I think that was more of a factor. I put a conventional layshaft in and am running a stock TRX slipper on mine, and it is easily the loudest gearbox I have-- so the plastic must be harder than the usual RPM stuff, because it does nothing whatsoever to dampen noise. I was running Monsterslash with the RPM box and Ultra Slashipede (equipped with an FLM case) side-by-side and the RPM seems about three times as loud.

But the box seems to be very, very well made. All of the screws line up perfectly, everything fits nice and tight. The FLM will always be my favorite, but-- once durability is suitably tested-- the RPM stands to become my most recommended.
There are no atheists in the foxholes / There is no intellect in the air / There are no scientists on the way down / Just a working example of faith versus physics. --El-P, Flyentology
downtown0309's Avatar
"Experienced user"
downtown0309 - 1.30.13, 1:30 pm Post #98: | Reply With Quote
The new RPM tranny worked great on hte first run at the track, but I noticed something when I got home. There was an excessive amount of grease coming out of the gearbox where the left axle shaft comes out of the differential. It's a black grease like I have in the diff, so I'm wondering if it's just the diff. My gears in the gearbox just have a small amout of white lithium on them. I'll open it up and see when I get a chance.
Ian517's Avatar
"Experienced user"
Ian517 - 2.18.13, 5:42 am Post #99: | Reply With Quote
Just got mine assembled and installed--love it! An annoyance I ran into though is that the stock Traxxas VXL motor mount screws (part #3931) will not work with this aluminum mount plate. The phillips head screws from the brushed cars fit fine, but the flat head hex screws from the VXL cars have a lip between the head and shaft that prevents them from sitting flush. On plastic transmissions, this lip simply presses in, deforming the plastic, giving extra bite. Obviously, this can't happen with a metal mount plate.

RPM should note this in their product description since they intend for you to re-use your old hardware. "NEW MOTOR MOUNT SCREWS REQUIRED," or include new ones with the kit. Anyway... what's everybody using to mount their motors?
blog.ianjefferys.com
downtown0309's Avatar
"Experienced user"
downtown0309 - 2.18.13, 6:16 am Post #100: | Reply With Quote
I use Lunsford Fat Boys, but if I run a large Spur, I have to use a Traxxas screw on the top one to clear the gear.
Reply
Thread Tools


All times are GMT -8. The time now is 3:43 pm.


Featuring: Ultimate Tamiya, Traxxas Slash forum, Slash 4x4 forum, Ultimate RC forums

Original content & design copyright ©2000 - 2013, Bamidele O. Shangobunmi & the Ultimate RC Network. Privacy policy
Manufacturer/vendor images, names, & trademarks are copyrights of their lawful owners & used with permission and/or within Fair Use guidelines.

Lego fan? Check out JANG's LEGO blog and LEGO videos on YouTube