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Tamiya TRF416 / TRF416WE / TRF416X

Old 07-30-2009, 10:27 AM
  #6106  
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good evening all

i have just got my new servo , the Futaba 9550 and i want to kow if i am setting my car up right steering wise !!!

i have to use 150% travel on my DX3s and i am thinkingthis is not normal , how does every one set there cars up ?? and how much steering do you use on the transmitter ???

go you all use spacers on the servo saver to make the angle of the steering arm 90 degrres to the steering mechanism ??

photos would also help me

i use a Kimbrough saver also
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Old 07-30-2009, 10:37 AM
  #6107  
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http://www.thard.co.uk/viewtopic.php?f=24&t=33

this page has got the spring rates

http://www.thard.co.uk/viewtopic.php?f=24&t=29&start=10

have a look down here for part no.
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Old 07-30-2009, 10:40 AM
  #6108  
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Originally Posted by sidecarphil1 View Post
good evening all

i have just got my new servo , the Futaba 9550 and i want to kow if i am setting my car up right steering wise !!!

i have to use 150% travel on my DX3s and i am thinkingthis is not normal , how does every one set there cars up ?? and how much steering do you use on the transmitter ???

go you all use spacers on the servo saver to make the angle of the steering arm 90 degrres to the steering mechanism ??

photos would also help me

i use a Kimbrough saver also
I think the Kimbrough is quite a bit lower than the Tamiya, so you lose some leverage on the steering mechanism. What I generally do, is:

1. Set EPA to 150% for both sides.
2. Center steering trim
3. Mount servo horn
4. Use sub-trim to make servo horn completely perpendicular to chassis
5. Adjust EPA so that I'm getting full lock R/L without binding the steering
6. Put it on the track and set my circles to be even
7. Use dual rate to dial in/out steering to my liking.

I'm sure there's many different ways to go about this. This is just my personal procedure which has served me well enough.
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Old 07-30-2009, 10:48 AM
  #6109  
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this is the kinda response i was after thank you

Keep em coming
is duel rate also known ad EXPO ???
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Old 07-30-2009, 11:26 AM
  #6110  
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Originally Posted by sidecarphil1 View Post
this is the kinda response i was after thank you

Keep em coming
is duel rate also known ad EXPO ???
I believe dual rate is something entirely different than exponential. EXPO will generally change the curve of the steering, so basically you can use it so the steering reacts less when you turn the wheel on the radio a little bit, and more as you turn the wheel more. This can be good to calm down a twitchy car, but I try to avoid it, or use it very sparingly.

Dual rate basically just limits the rate of travel equally in both directions. The steering should still be linear.
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Old 07-30-2009, 11:28 AM
  #6111  
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Originally Posted by sidecarphil1 View Post
good evening all

i have just got my new servo , the Futaba 9550 and i want to kow if i am setting my car up right steering wise !!!

i have to use 150% travel on my DX3s and i am thinkingthis is not normal , how does every one set there cars up ?? and how much steering do you use on the transmitter ???

go you all use spacers on the servo saver to make the angle of the steering arm 90 degrres to the steering mechanism ??

photos would also help me

i use a Kimbrough saver also
Your servo horn need to be perfectly vertical from the center screw hole to whatever hole you chose to use for the linkage. You may need to trim or even sub-trim to make this happen but it is a necessity. Then set the Dual Rate to MAX and while slowly turning the steering on the transmitter, turn down the endpoints Left and Right separately until the servo does not try to force any stress on the other parts like the "C" hubs and steering blocks. This makes it impossible to dial steering in past the point of mechanical throw. My end points on the 3Pk are usually around 60~70% but your numbers may vary.
If your lucky the endpoints will match and everything is beautiful. If you have a HUDY Set-Up system it may be necessary to adjust the endpoints so that the wheels deflect the same amount of degrees left and right. Once again , the # of the endpoint is meaningless .... it doesn't matter if they are off a bit as long as the wheels turn equally. \\\
Good luck M8
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Old 07-30-2009, 01:00 PM
  #6112  
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right a bit of a problem on the dam steering

i fitted the 9550 servo and had to use the Tamiya high torque saver because my Kimbrough is not for a futaba

at 150% dual rate the steering uprights wont touch the C hubs ???

i have not put the car on the HUDY gauges but i think i now have less steering !!!!

have just re adjusted all the tie rods to the length in the manual and this has squared the wheels up

the Kimbrough was shorter than the tamiya one , is it posable for the servo to have less "throw" then another one ???
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Old 07-30-2009, 01:43 PM
  #6113  
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My servo arms is slightly to the right (relative to car). forgot the length of the linkage, but a little bit shorter than the stock one. I can easily go lock to lock.

You sure your dual rate is set back to 100%?
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Old 07-30-2009, 01:48 PM
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Not happy his TRF416 in the opening three practice runs, Groskamp was clearly delighted to break into the 17 laps for the first time. The Dutch ace had made a number of small changes to his car since winning the Warm Up race, including the fitting of some prototype parts, but reverted to a more standard set-up and was much happier with the feeling.
Hmm...
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Old 07-30-2009, 02:07 PM
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the end points on my DX3s are at 150%

this is the dual rate i am thinking
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Old 07-30-2009, 04:28 PM
  #6116  
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hey phil
on your dx3s its caled steering rate s/r
greeting marcel
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Old 07-30-2009, 10:32 PM
  #6117  
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Originally Posted by sidecarphil1 View Post
the end points on my DX3s are at 150%

this is the dual rate i am thinking
That Tx is a bit quirky.
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Old 07-30-2009, 11:16 PM
  #6118  
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Originally Posted by sidecarphil1 View Post
the end points on my DX3s are at 150%

this is the dual rate i am thinking
The Epa's are referred to travel on the dx3s &r
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Old 07-31-2009, 12:47 AM
  #6119  
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Originally Posted by John St.Amant View Post
That Tx is a bit quirky.
yeah i know about that , it went back to the manufacturer for a repair about 6 months ago !!!

think i'll look for a second hand 3PK in the winter
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Old 07-31-2009, 02:58 AM
  #6120  
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Does anyone have any Red Surikarn Tamiya shocks they want to sell?
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