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Old 25-01-2015
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Default Spring rates yz2

Hi

Does anybody know the spring rates for these new springs that have come out ?
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  #2  
Old 25-01-2015
Philim Philim is offline
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Yatabe spring rates
Attached Files
File Type: pdf Yokomo_SpringsChart-3.pdf (13.3 KB, 110 views)

Last edited by Philim; 25-01-2015 at 10:39 PM. Reason: incorrect link
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  #3  
Old 25-01-2015
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This table does not contain the YZ2 spring. Have a look here, update done minutes ago: http://www.petitrc.com/reglages/Univ...pringChart.htm
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Old 25-01-2015
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That spring chart Philim posted above is not quite right. It's a hard thing to do and Arn0 has done a great job compiling it for sure. Modulus of elasticity constant of the spring steel was guestimated (for the Yokomo ones), and is different for each spring set..

TeamYokomo.eu have just released this measured one:



I was working on one similar myself with the Gforce spring rate gauge, but they beat me to it ;-)

I'll try complete the older Yokomo springs to complete the chart.
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Last edited by neallewis; 27-01-2015 at 01:35 AM.
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Old 25-01-2015
Allan1875 Allan1875 is offline
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Now you need to help me out Neal. I only deal in springs rates at lbs/inch.

When I stuck n/cm to lbs/inch into google and tried conversions, I definitely wasn't getting the right figures. Anyone tell me how to convert them?
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Old 26-01-2015
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Quote:
Originally Posted by Allan1875 View Post
Now you need to help me out Neal. I only deal in springs rates at lbs/inch.

When I stuck n/cm to lbs/inch into google and tried conversions, I definitely wasn't getting the right figures. Anyone tell me how to convert them?
Yeah I was getting silly numbers too, hence why I've not published my table...
One thing is for certain the AE pound "lb" rating of their springs is a bit nonsense. It's a weight, not a force. They do not mean lb/in either? I figured I'd start with "known" ratings, and calculate/convert back from metric force to the "lb" rating. silly numbers.

I just figured I'd go with the N/CM scale of the gauge, and refer them all back to that scale.
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  #7  
Old 26-01-2015
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Quote:
Originally Posted by neallewis View Post
That spring chart Philim posted above is wrong. Modulus of elasticity constant of the spring steel was guestimated, and is different for each spring set..

TeamYokomo.eu have just released this measured one:



I was working on one similar myself with the Gforce spring rate gauge, but they beat me to it ;-)

I'll try complete the older Yokomo springs to complete the chart.
If you are going to add the 'older' Yokomo springs, measure the YS and YAS as well, because you don't know HOW (Probably using a GForce thing, but nobody knows.) Bjorn did measure. If you get ~the same results, it should be OK.
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Old 26-01-2015
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Quote:
Originally Posted by neallewis View Post
That spring chart Philim posted above is wrong. Modulus of elasticity constant of the spring steel was guestimated, and is different for each spring set..

TeamYokomo.eu have just released this measured one:



I was working on one similar myself with the Gforce spring rate gauge, but they beat me to it ;-)

I'll try complete the older Yokomo springs to complete the chart.

Cheers Neil
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  #9  
Old 26-01-2015
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Only just started running Yokomo for the first time with the YZ2, what's the difference between the different sets? I'm guessing it's the length of the spring?

Cheers
Chris
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  #10  
Old 26-01-2015
Allan1875 Allan1875 is offline
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Quote:
Originally Posted by Fozzy1989 View Post
Only just started running Yokomo for the first time with the YZ2, what's the difference between the different sets? I'm guessing it's the length of the spring?

Cheers
Chris
Yeh the Carpet ones are shorter.
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