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Valve train weight savings

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Started by LumpyVR4, Apr 24 2019 08:21 AM

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#1
LumpyVR4
Posted 24 April 2019 - 08:21 AM

LumpyVR4

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Quick FYI post about valve train weight savings on an aftermarket valve train.

 

The total weight of the stock valve train i.e. valves, springs, retainers and collets is 1884g

 

New valve train is Supertech beehive valve springs, +1mm SS intake valves, +1mm inconel exhaust valves, Ti retainers, OEM collets. Total weight 1679.

 

Weight savings equal 205g. On average that's 12.81g off each valve assembly. At 40rpm per gram, this equates to an increase in valve train RPM limit (disregarding the higher rate springs) of about 500rpm.

 

 


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#2
evo-gsr
Posted 24 April 2019 - 09:52 AM

evo-gsr

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are you building this to a certain World Time Attack Sup Reg?

 

:w00t: 


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#3
jack be nimble
Posted 03 May 2019 - 10:07 AM

jack be nimble

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I have a set of the late Evo beehives and std size valves. I will try to remember to weigh them to compare.

You have a good weight saving there. More than 10%...
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