tags
Valve Float
This is a video showing valve float in a running engine at high RPM.
Channel: Autos & Vehicles
Author: portworks
Length: 04:20
Rating: 4.74
Views: 192889
Tags: cylinder float heads portworks valve
Video Comments
Polybun (November 30, 1999 at 12:00 am)oh fuck off.
Polybun (November 30, 1999 at 12:00 am)
Something this video doesn't mention is something else that can happen with insuficient valve spring pressure is hyper extension of the valve, which, in some cases can cause the spring to go beyond its eleastic zone and fail, or cause the head of the valve to pop off when the keepers impact the valve guide or the spring compresses fully.
turbillb (November 30, 1999 at 12:00 am)
This is interesting, thanks for putting it up. I hear the term all the time but to see it is cool.
Wojoray (November 30, 1999 at 12:00 am)
yeah ive never heard a true one call it that either. always been called nitrous with the guys I help out.
jayguy173 (November 30, 1999 at 12:00 am)
big wing and nos
Docthewrench (November 30, 1999 at 12:00 am)
YEP but the fast and fingerbang started all the meatheads calling it NOS, any true gear head wont call it NOS Bottle, Juice, go fast juice, and other things i cant think of right now
Wojoray (November 30, 1999 at 12:00 am)
even high displacment motors have problems with valvesprings
Wojoray (November 30, 1999 at 12:00 am)
ugh i hate it when people say NOS. I didn't hear it much until fast and furious came out. I help out with a dragster that goes 7's in the 1/4 on NITROUS.
InfernusEternum (November 30, 1999 at 12:00 am)
Man that doesn't look healthy. :0
simonspiers (November 30, 1999 at 12:00 am)
This is great! I have experienced this in old pushrod engines but to see it is something else!