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U20 racing valve spring rates

https://www.311s.org/phpBB3/viewtopic.php?t=29054

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U20 racing valve spring rates

Posted: Mon Oct 16, 2017 2:43 pm
by tjp
Does someone have the compression rates for the NISMO valve springs?

Or, if the NISMO is not available, what rates are you running in your U20 track motors?

thanks
tim
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