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Old 05-06-2009, 03:07 PM
  #16175  
linger
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Originally Posted by KDR
Bigz,
Not sure if this helps you or not, in any event it is a great item to keep in your pit box. See attached.

-Steve
don't you wonder where all those measured spring values came from?

Originally Posted by EJ20
I'cant tell you what exactly LBS. right now since I don't have the chart on hand but I can tell you the HPI Pink is about 18 LBS. and the HPI Blue is about 16 LBS. If you asking about the Hara's, they are totally different things. They start at about 17 LBS down to 13 LBS, but when you try to compress it by your fingers (someone said not suppose to) you will notice it start soft at the beginning and getting stiffer. Compare to HPI's, you could fully compress the Springs all the way. So, you need to try it and see which one is good for.
6542 Blue: 273 g/mm, 15.29 lb/in
Measured 14.29, 14.27 - average of 14.28

6543 Silver 302 g/mm, 16.91 lb/in
Measured 16.34, 16.07, average of 16.21

6544 Gold 340 g/mm, 19.04 lb/in
Measured 17.38, 17.60 - average of 17.49

6545 White 363 g/mm, 20.33 lb/in
Measured 20.35, 19.33 - average of 19.84

6546 Yellow 388 g/mm, 21.73 lb/in
Measured 20.27, 20.77 -average of 20.52

6547 Red 400 g/mm, 22.40 lb/in
Measured 20.61, 20.60 - avearge of 20.61

6548 Pink 320 g/mm, 17.92 lb/in
Measured 16.60, 16.88 - average of 16.74

to get from g/mm to lb/in - just multiply by 0.056

Thanks to James Arluck for donating his new HPI spring set to get measured. The measured values do differ from the published values - which is absolutley normal. Also interesting to note that the HPI Yellow and Red practically overlap in values.
The HPI springs are indeed linear. I have the entire force/displacement curves to prove it.

Originally Posted by STLNLST
You just earned yourself a soda when you get down here. Thanks for having my back against the norcal FAILURE!!!!!
Are you going to borrow money from Tina to buy Korey a soda?

Last edited by linger; 05-06-2009 at 03:14 PM. Reason: legibility
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