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YOKOMO Touring Car BD-7


Old 12-20-2014, 05:41 AM
  #5146  
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And also the car drives more responsive with the blues which also tells me they are harder
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Old 12-20-2014, 06:00 AM
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Originally Posted by vwvrt View Post
And also the car drives more responsive with the blues which also tells me they are harder
Pink are thicker wire and more coils of course they will compress first. Hand feel can be misleading.
Several ppl have tested yok springs independently and blue are softer.
Good source for spring rates can be found on petit rc and reflexracing website.
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Old 12-20-2014, 04:50 PM
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Originally Posted by vwvrt View Post
And also the car drives more responsive with the blues which also tells me they are harder
As per other posts pink are stiffer than blue, but perhaps your springs were labeled incorrectly.
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Old 12-20-2014, 09:51 PM
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i have a question.which car is better 2013,2014,or 2015?i'm looking to get my first one and trying to figure out which one has the best features.i will run on carpet mostly and i notice that alot of guys at the track has been running them but when you ask them they say mostly that 13 is better then the 14 but its a toss up between the 13 or 15. so which should be first?
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Old 12-20-2014, 10:13 PM
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Originally Posted by slowpoke68 View Post
i have a question.which car is better 2013,2014,or 2015?i'm looking to get my first one and trying to figure out which one has the best features.i will run on carpet mostly and i notice that alot of guys at the track has been running them but when you ask them they say mostly that 13 is better then the 14 but its a toss up between the 13 or 15. so which should be first?
I would just get the newest one. But if you are interested I have a '13 roller for sale. Local to you too.
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Old 12-20-2014, 11:00 PM
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Originally Posted by slowpoke68 View Post
i have a question.which car is better 2013,2014,or 2015?i'm looking to get my first one and trying to figure out which one has the best features.i will run on carpet mostly and i notice that alot of guys at the track has been running them but when you ask them they say mostly that 13 is better then the 14 but its a toss up between the 13 or 15. so which should be first?
Get the 2015 you have option to remove X brace and change to front motor mount kit....more tuning options
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Old 12-21-2014, 06:04 AM
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Originally Posted by slowpoke68 View Post
i have a question.which car is better 2013,2014,or 2015?i'm looking to get my first one and trying to figure out which one has the best features.i will run on carpet mostly and i notice that alot of guys at the track has been running them but when you ask them they say mostly that 13 is better then the 14 but its a toss up between the 13 or 15. so which should be first?
Ha. You're the first person with this question. Mazeltov!
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Old 12-22-2014, 09:39 AM
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Originally Posted by T2 SLOW View Post
do you find with the long springs the pink is softer than blue and yellow?
Originally Posted by vwvrt View Post
Yes I thought the same when you put the springs together the pink compresses first .so as far as I'm concerned the pink is softer than the blue even tho the pink is suppose to be harder
Originally Posted by vwvrt View Post
And also the car drives more responsive with the blues which also tells me they are harder
Originally Posted by Jorge T View Post
Pink are thicker wire and more coils of course they will compress first. Hand feel can be misleading.
Several ppl have tested yok springs independently and blue are softer.
Good source for spring rates can be found on petit rc and reflexracing website.
Originally Posted by frozenpod View Post
As per other posts pink are stiffer than blue, but perhaps your springs were labeled incorrectly.
Pink vs: Blue springs in Kgf/mm
Progresssion of spring per 1mm increments

Blue:
.28|.52|.78|1.04|1.28|1.54|1.76|2.02

Pink
.28|.56|.84|1.12|1.40|1.66|1.94|2.22
Attached Thumbnails YOKOMO Touring Car BD-7-springtest.jpg  
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Old 12-22-2014, 09:43 AM
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Originally Posted by RedBullFiXX View Post
Pink vs: Blue springs in Kgf/mm
Progresssion of spring per 1mm increments

Blue:
.28|.52|.78|1.04|1.28|1.54|1.76|2.02

Pink
.28|.56|.84|1.12|1.40|1.66|1.94|2.22
Do you happen to have that information for other springs as well? I need really to make my own spring testing setup...

-Korey
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Old 12-22-2014, 09:56 AM
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Anymore update why Naoto Matsakura living yokomo?
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Old 12-22-2014, 09:57 AM
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Originally Posted by Korey Harbke View Post
Do you happen to have that information for other springs as well? I need really to make my own spring testing setup...

-Korey
Sounds like a fun project! Build one, Korey! I used to have a spring rate tester for 1:1 race car springs. A tiny version would be neat.
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Old 12-22-2014, 10:04 AM
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Originally Posted by Korey Harbke View Post
Do you happen to have that information for other springs as well? I need really to make my own spring testing setup...

-Korey
A good friend of mine put some effort into his test rig
I'll let him weigh in on that setup, and other spring rates he has tested
Maybe we can form an Excel Ss on them all

Of note, and fairly un-scientific
With my current setup Purple Fr, Blue Rr
There is about 3mm of spring compression from static height to chassis touching, and about 1mm of pre-load for ride height

So those first 4-5 increments seem to be the most important to think about

Purple:
.24|.50|.76|1.02|1.30|1.56|1.82|2.08
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Old 12-22-2014, 11:04 AM
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Originally Posted by RedBullFiXX View Post
A good friend of mine put some effort into his test rig
I'll let him weigh in on that setup, and other spring rates he has tested
Maybe we can form an Excel Ss on them all

Of note, and fairly un-scientific
With my current setup Purple Fr, Blue Rr
There is about 3mm of spring compression from static height to chassis touching, and about 1mm of pre-load for ride height

So those first 4-5 increments seem to be the most important to think about

Purple:
.24|.50|.76|1.02|1.30|1.56|1.82|2.08



So the purple is testing softer than the blue?
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Old 12-22-2014, 12:36 PM
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How about this? Could work maybe.
Attached Thumbnails YOKOMO Touring Car BD-7-image.jpg  
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Old 12-22-2014, 01:57 PM
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Originally Posted by XSLR8 View Post
How about this? Could work maybe.


That looks good. It would have been perfect if the middle knob would have an indicator to see how far down you are compressing.
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