Valve float video

Jhill · 02-23-2018, 01:28 AM

Quote:

Originally Posted by Rusty

It's been a while since I've played with valve springs. And the technology is changing.
Short answer. They do. A triple valve spring. The middle spring is called a damper spring. It's flat wound spring that goes between the 2 other springs. It raises the rpm at which float happens. It's suppose to help with vibrations in the springs.

I’m aware of 2 and 3 spring valve springs to all have a different natural frequency etc but some type of real damper system would be interesting and maybe allow less tension for reduced drag and less valve stem stretch etc.

I imagine the z is a two spring setup? I would be really surprised if it’s single spring running 7500 rpm

Rusty · 02-23-2018, 02:40 AM

Quote:

Originally Posted by Jhill

I’m aware of 2 and 3 spring valve springs to all have a different natural frequency etc but some type of real damper system would be interesting and maybe allow less tension for reduced drag and less valve stem stretch etc.

I imagine the z is a two spring setup? I would be really surprised if it’s single spring running 7500 rpm

Believe the beehive spring can run those rpms. How above that. I don't know. F1 and MotoGp used to run air springs at 20,000+ rpms.

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
Valve Caps	scottIN	Wheels & Tires	13	08-31-2016 10:11 PM
Seat Position and Highway Float (2014 Nismo)	nismo2evox	Nismo 370Z	7	06-02-2016 03:37 PM
PCV Valve Servicing ?	Dwight Frye	Nissan 370Z Warranty / Scheduled Maintenance / Servicing / Repairs	1	07-28-2014 08:06 PM