just wondering,
if i had a stock motor and for some strange reason decided to throw in some SUPER high strength valve springs, would the motor make less power? when do the springs need to be changed out to harder ones???

 

Yes, although just how much less power is difficult to say. By installing stiffer springs, you're increasing valvetrain drag, thus reducing the efficiency and power of the motor. If you aren't running upgraded cams and your redline is stock, you have no need for different springs.

 

Remember, though, that when you install heavy springs, when one is being compressed by the cam lobe, another is retracting and giving the cam an added "push" so there is a bit of equality. INstall one spring and place the cam in the head with just that one spring. Spin the cam and compress the spring. At the top of the compression, watch what happens on the backside of the lobe....
The cam will spin off by itself because the spring is pushing the cam.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by GoldenEagleMfg.com &raquo;</TD></TR><TR><TD CLASS="quote">Remember, though, that when you install heavy springs, when one is being compressed by the cam lobe, another is retracting and giving the cam an added "push" so there is a bit of equality. INstall one spring and place the cam in the head with just that one spring. Spin the cam and compress the spring. At the top of the compression, watch what happens on the backside of the lobe....
The cam will spin off by itself because the spring is pushing the cam.</TD></TR></TABLE>

well yeah to a certain extent, i was just wondering because i know it takes a lot strength to turn a cam 1 time around let alone at high speeds. a just finished building another head 2 days ago and the question came up. thanks guys