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Roche Rapide P12 Evo 1/12th Competition Kit

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Roche Rapide P12 Evo 1/12th Competition Kit

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Old 01-03-2019, 05:19 PM   -   Wikipost
R/C Tech ForumsThread Wiki: Roche Rapide P12 Evo 1/12th Competition Kit
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Last edit by: hanulec
Questions/Answers:
Q1. Will the P12 Evo support a traditional style steering servo setup?
A1. Yes. The chassis supports this, but parts are not included.

Q2. Will the P12 Evo support prior Roche P12 front ends featuring a Xenon lower arm?
A2. Yes. Prior front ends will directly bolt on to the new P12 Evo chassis

Q3. What is the maximum size servo width that can be used on the P12 Evo?
A3. Maximum servo width is 33mm

Q4. Which servos fit into the P12 Evo?
A4. (not a complete answer -- working on building up a list)
  • Sanwa SGR-HR (must cut off the top/bottom additional case pieces)
  • Sanwa SRG-HS (must cut off the top/bottom additional case pieces)
  • KO Propo RSx3-12 Digital Mini Servo
  • Futaba High Voltage BLS671SV S.Bus2 HV SX Mini Servo
  • Hitec HS-7235MH Hi-Voltage "Hi-Speed" Metal Gear Digital Mini Servo
  • XPert MI-3301

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Old 01-03-2019, 04:19 PM
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Have you had problems with ESD in the past or is the grounding strap just for piece of mind?
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Old 01-03-2019, 05:16 PM
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Originally Posted by crisis641 View Post
Have you had problems with ESD in the past or is the grounding strap just for piece of mind?
a ground wire is necessary on every brand of ESC (but Tekin) for 1s applications on 'black' CRC carpet.
esc otherwise experience brown outs
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Old 01-03-2019, 06:54 PM
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Will the new front end bolt directly onto the 2017 USA Spec aluminium chassis? Is there any advantage to doing such a change?
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Old 01-03-2019, 07:21 PM
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Originally Posted by Juniorabca View Post
Will the new front end bolt directly onto the 2017 USA Spec aluminium chassis? Is there any advantage to doing such a change?
Yes

Advantage... Tbd.
The Evo front end is a Roche only design.
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Old 01-03-2019, 07:48 PM
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Originally Posted by hanulec View Post
a ground wire is necessary on every brand of ESC (but Tekin) for 1s applications on 'black' CRC carpet.
esc otherwise experience brown outs
Would someone be willing to explain what exactly this means .... or maybe link a thread that I can read about it. I dont believe anyone at our club has had brownouts, and I've not yet heard of a ground wire. Thanks
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Old 01-03-2019, 07:56 PM
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Originally Posted by ChadBlanton View Post
Would someone be willing to explain what exactly this means .... or maybe link a thread that I can read about it. I dont believe anyone at our club has had brownouts, and I've not yet heard of a ground wire. Thanks
https://www.rctech.net/forum/electric-road/37-1-12-forum-3067.html#post15065368
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Old 01-03-2019, 09:09 PM
  #52  
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Originally Posted by AngryRog View Post
O-rings on axle?
Lets just say there are a few things that "I" do. The o-ring is a new test for blowing out bearings on Click-Trac. The Roche o-rings are fairly rigid, lay an axle shim against and it makes for a nice bearing cushion. Will it save me from clipping a corner at warp 9 to the outside wall and DNF'ing a round/main??? It's worth a try. But if your'e pro-level, you don't need the o-ring. I'm building a car for 3.5 mod on snug Click-Trac next week. But if you'd like to try this, you do need to sand some of the spool side shim and the clamp hub to get 172...not harmful stuff.

As for grounding, an ounce of prevention cost far less then a DNF and a speed control. Static discharge seems to be more a "new carpet" issue. Give any of the new black tracks a couple of months to relax and discharge and it becomes a non-issue. But why risk it? The guys up north rub a rag sprayed with Static Guard on the bottom of the chassis occasionally. Some of the newer esc's are building in protection.
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Old 01-05-2019, 02:53 PM
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I run a ground to the chassis and a ground to the screw that holds the motor. If I don't my hobbywing esc shuts down 2 laps in the run.
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Old 01-06-2019, 06:16 AM
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I see ground strap “tuning kits” being sold in the not too distant future.

Like the ground strap kits all the Honda fast and furious guys get for their 110hp civics.

Its worth a 1/10 in the quarter so their times are now 16.5 seconds at 75mph through the traps.


Killin it!!!!!
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Old 01-06-2019, 09:46 AM
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Default P12 Evo

I liked the way the car handle, good chassis.
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Old 01-06-2019, 11:37 AM
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...and with virtually no setup. Haha. His car was very good.
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Old 01-07-2019, 08:05 PM
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What servo is a good choice? My Xpert 3301 doesn't seem to fit. Thanks!
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Old 01-07-2019, 08:22 PM
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Originally Posted by LAGuy View Post
What servo is a good choice? My Xpert 3301 doesn't seem to fit. Thanks!
Go back one page... Brian posted about his p12 with that servo
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Old 01-07-2019, 11:29 PM
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LAGuy, The red cube installs two ways...there is a little chamfer in the upper corner, that needs to face towards the rear of the car. Should drop right in.
bb
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Old 01-08-2019, 12:35 PM
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I'm interested in feedback on the plastic front lower arm ball holders and how they stand up to front end impacts. I've had other kits that sported a similar design and the results were mixed.....Xenon plastics are favorable, so I am waiting to see some reports.
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