dang astrowrench no need to get like that when some ask for some help and insight,,,and by the way it depends on where they measure u from on top of that building, from the ground or the roof , with or without the hat, lol, and that's what he was askingThe "height" is how TALL THE SPRING IS ................If I am 6'3 and stand on top of new trade center with a Hat on I'M still 6'3 What is so hard to understand..... ASSEMBLED SPRING LENGTH....... If said valve spring was shimmed to a shorter installed height...... it would be--- Stronger.... and shorter..... less prone to valve float......... and longer..... than installed height.. Weaker..... more prone to valve float........It seems to be a very simple thing
is the retainer included in the hight measurement? thanks
it would seem so. the issue would be a custom spring that fit the criteria and had a little more pressure than allowed at full lift. progresseve wound springs do this, also it would allow the valve to open just that much more when it did float. so in effect it limits vale lift probably more than the pressure problem.imhothe question i have is simple....understanding the need to measure the spring height against a known height is keeping within the rules, but sometimes it seems that the measuring seems odd. if you measure the spring height at say 1.350 inches (just throwing numbers out there, i know they aren't correct) and the rules say that it can't be more than 1.330 inches, is the extra .020 actually that much of an advantage? i know that there has to be a limit, but each spring, retainer, seal and shim made isn't going to be measured exactly what the rules are asking for. sure you have a variance (+ / - a certain amount), but does this measurement mean that much and provide that much of an advantage? by my way of thinking, the springs act only as a garage door opener.....they only hold the valve in place and apply enough pressure to keep the valve closed. does the height actually mean that it's going to open farther or close harder? i was under the impression that the cam is what limits the valve to how wide it opens and how fast it slams shut. now if your talking spring pressure, that i can understand...it will limit what you can do because it will affect power...get one too stiff and it's hard to open....get one too weak and you'll hit valve float, so it has an immediate effect on power...but does the height have that much affect?