That's a terrible comparison. There's more to it than just seat pressure. There's spring rate, lift, how heavy the valve train parts (valve, rocker, pushrod) added are, etc. That's like saying "a motor cycle can get away with two-cylinders! Why can't we?"Originally Posted by QwikGT
No, they don't just "float one time and go back to normal". Valve float doesn't instantly destroy the motor. I've worked on LSx engines that have valve float already (from certain mods) and we worked to fix it. The intake valve can simply close halfway during the compression stroke. That causes no chance of piston interference but you lose chamber pressure because you were pushing air out of the valve when it should've been closed.
Point is, you could have valve float and not even really know it.
