Thank you.

Hello.....I will be ordering a rc12 r5.2 car soon and had a few questions/concerns as it will be my first on road car....heres what i plan on ordering......

Rc12 r5.2
Reedy Sonic 17.5
Reedy blackbox esc
Reedy 1s lipo
Airtronics 94671z servo
Protoform strakka reg. Weight body

Is that the right Airtronics servo to get?

I love the Sonic motors for offroad...however they are not 1s specific...,, will it be good for a club level?

BSR tires i will buy at track(ProLevel RC in St.Louis, Mo).....will this be a good starting setup for club racing, whats a good starting point for gearing?

The REEDY BB, Sonic, and Lipo are a decent combo
For tires, gearing etc, hit up the locals, find what they are using, sometimes it's easier to just start out with the motor/rollout of the fastest local too

Trevor,

Everything looks great.

The Airtronics servo is very good. BUT, on the 12R5 you'll have to glue it flat, as it's too small to square up between the mounting holes as drilled. There's nothing wrong with gluing flat, other than it makes Ackerman adjustments more difficult. A good swap option would be the Futaba S9650. With that one, you can skip the mounts entirely and just bolt it flat with the case slots.

The Sonic is a fine motor. On the Mach 2, put the can timing on 30 deg. and roll it out at 100mm. From there, season to taste, depending on track size, layout, etc.

Also, just build the kit per the instructions, with one exception. Swap out the kit side springs for blacks. Blacks are the go-to for the 12R5. Otherwise, kit setup is a perfect place to start.

Good luck! 1/12th scale forever:tire:

Thanks everyone....Ive decided to change up a few things on my build.....
LRP flow works esc (out of my b5m) going in the rc12 car and Reedy blackbox will go in my b5m.
LRP 1s lipo as Reedy's are bo'd.
Futaba servo sounds like thats the better route for me, I will order the black springs, thank you for the help .

I just got a RC12R5.2 and I was wondering how I should mount the servo.

Are the demensions of the 12r5.2 rear pod the same as the 12r5? Would like to do a conversion on my 12r5 with the 12r5.2 rear pod and the dampers but keep the transverse battery location. Can it be done?
Please don't say you can put the battery location that way on the 12r5.2 I aware of that. Trying to switch to dampers on the 12r5 in the cheapest possible way

It depends on which version of the R5 pod you have. The original R5 pod was narrow and designed for a brushed motor. A conversion kit came out that widened the pod out to the current R5.2 width to better fit a brushless motor. It required a narrower diff side rear hub. Same size as the current R5.1 and R5.2 hub.

You will require a 5.1 or 5.2 rear pod setup to mount the slider tube top plate and redrill the cross bar if you want to mount it on a 12R5 chassis.

I'll post some pictures soon.

Below are photos of the old pod plates and newer pod plates for the 12R5 and also a photo of the 12R5 chassis and the 12R5.2 cross plate. You'll see the the mounting holes do not line up. Redrilling is an option but not a good one.

I wanted to build up a second car using an On-Point R5 conversion chassis with a transverse battery, damper tubes and it's shorter wheelbase. I dropped the project when I saw how the drilling would look.

I hope this helps.

So you can't use the 12r5.2 complete rear pod without Redrilling the holes on the chassis brace?

Yes. The cross brace is designed / drilled for the 12R5.1 / 12R5.2 chassis.

Quote:
Originally Posted by EricF View Post
Correct numbers for the other R5.1 parts are
8536 and 8537 are the correct bulkheads
4687 Motor mount standoff
4688 Graphite shock mount
To completely upgrade a R5 to a R5.1 you will also need the following parts:

8511 FT Lower Pod Plate
4608 FT RC12R5 Hub (brushless)
4609 RC12R5 Thrust Cone (brushless)

The RC12R5.1 used the wide brushless rear pod so if you have a box-stock RC12R5 you will need these parts also. Otherwise the graphite shock mount and the motor mount standoff will not fit. Offcoarse, if you use a thrust bearing like the Slapmaster you won't need the Thrust Cone but that would be obvious I guess...

I have the T-plate conversion for the RC12R5 and for this 12th scale season I am going to convert that chassis to a 5.1 rearpod WITH T-plate. I have to custom make a new lower pod plate but that won't be a problem. When it's done I will show you guys some pictures...

Joost.

This was from post #1485 from this thread.

Original 12r5 can be made brushless by using the r10 upper and lower pod plates and the brushless hub

Indeed it can. And I would say it's the better option than the 12R5.1. The 10R5 plates and right hub were the early brushless conversion for the 12R5. The full box pod is rock solid--strong and never tweaks.

How do I check to see if I have a 12r5.1? I think that's what it is