1/12 forum
Tech Fanatic
Joined: Jun 2005
Posts: 900
My 1987 RC12L, with optional carbon chassis, still proudly sports its S132H!! It also sports its Reedy green dot motor, but I'm not now sure if that is in period, or if I just put it in there one day so I didn't lose it!! The speedo and receiver are original, so now all I need is some period cells that still work - fat chance...
(Sorry, not trying to turn this into the 12th retro thread!!
)
(Sorry, not trying to turn this into the 12th retro thread!!
)
"Back in the day" the preferred servo in 1/12th scale was the Airtronics 94145 servo. So most of the kits from that time forward were and are often still designed around that servo. Hence why it comes with an Airtronics servo saver. The servo savers that use an insert are usually too big for 1/12th and have a much stronger spring than what we need for 1/12th.
Tech Champion

Joined: Nov 2001
Posts: 7,191
From: Hawaii, USA
The problem I've seen with the larger servo saver on many cars is 2 fold...first it is too long from from the center point to the ball stud so you have to limit the steering throw much more. And 2nd because it is longer it is more difficult to get the proper angle on the steering links. I've tried the medium one in a pinch but really don't like to use them.
The problem I've seen with the larger servo saver on many cars is 2 fold...first it is too long from from the center point to the ball stud so you have to limit the steering throw much more. And 2nd because it is longer it is more difficult to get the proper angle on the steering links. I've tried the medium one in a pinch but really don't like to use them.
Tech Champion

Joined: Nov 2001
Posts: 7,191
From: Hawaii, USA
I guess maybe I don't hit things as hard as I thought as I've rarely ever had a spring failure with the small servo saver. I think I've had maybe 2 in 15-18 years and those were due to the servo saver coming apart when taking it off of the servo. Of course I don't get to race 1/12th nearly as often as people on the mainland so that could be part of it.
I guess maybe I don't hit things as hard as I thought as I've rarely ever had a spring failure with the small servo saver. I think I've had maybe 2 in 15-18 years and those were due to the servo saver coming apart when taking it off of the servo. Of course I don't get to race 1/12th nearly as often as people on the mainland so that could be part of it. 

I have busted a few of the Kimbrough 114 SS in hard wrecks, especially in boosted 13.5. Even with the CF/plastic braces, I have had the whole assembly fly apart. I guess I am not quite the driver I wish I was. My only gripe with the 201 SS is the holes are about .5 mm too close to the center which causes the ball cups to bind in certain applications/ackerman positions.
Tech Champion

Joined: Nov 2001
Posts: 7,191
From: Hawaii, USA
I've cracked my fair share of the small servo savers but spring issues not many. Of course I'm slow and run the slow classes and am only getting slower
So I don't break stuff as much probably.
As for the holes...I've even used the short holes on the small servo saver a fair amount to get the right angles and tame down the steering.
So I don't break stuff as much probably.As for the holes...I've even used the short holes on the small servo saver a fair amount to get the right angles and tame down the steering.
Tech Regular
Joined: Jun 2007
Posts: 329
For mod I run a LRP 4.0 or Trinity D3 4.0. I run a LRP SXX speedo.
Steve Dunn
Indianapolis, IN USA
Steve C.
Tech Adept
Joined: Jan 2009
Posts: 130
I know these are used by some 12th guys... question is do I need a receiver pack to use it, or will it run 1s without issues? Thanks, trying to decide on something soon (local class is probably going to be 17.5 blinky, small carpet track).
Last edited by nf_ekt; 05-17-2011 at 07:43 PM.



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