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-   -   Can someone weigh a stock valve spring please (http://forums.pelicanparts.com/porsche-911-technical-forum/955000-can-someone-weigh-stock-valve-spring-please.html)

lvporschepilot 04-29-2017 11:02 AM

Can someone weigh a stock valve spring please
 
Weighing components here vs stock and do not have a stock spring inner and outer to throw on a scale. Anyone able to help out? Most appreciated.

The springs I found in the EU weigh 49g inner and outer and install at about 85lbs seat and 230-240lbs at 12.7mm lift. I think these are significantly lighter than stock but not quite sure yet. As Grady used to say, valve control is best had with the least amount of spring possible which is usually done by way of light components. We all miss Grady.

Thanks

lvporschepilot 04-30-2017 05:20 AM

anyone? to the top. thanks in advance

BK911 04-30-2017 07:11 AM

From what engine?
Have some from 2.2 and 2.4s.

lvporschepilot 04-30-2017 07:45 AM

Either of those should be fine. The valve springs were the same for quite a long time weren't they? Thanks!

lvporschepilot 04-30-2017 03:42 PM

Thanks in advance!

lvporschepilot 05-01-2017 05:12 PM

Update. Stock spring weight is 68g. Total weight savings with new springs and ti retainers is 16g per.

The approx rule for grams on valvetrains is for every gram removed from the valve component, an additional 30-40rpm can be had with the same amount of spring force.


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