Skip to content

NASCAR valve spring

Please discuss here all your remarks and pose your questions about all racing series, except Formula One. Both technical and other questions about GP2, Touring cars, IRL, LMS, ...
Ranald
Ranald
0
Joined: 23 Oct 2006, 21:15
Location: Oxford

NASCAR valve spring

Post

This is a really interesting video of a NASCAR valve spring running at 7000 rpm. The example is from a 7 year old engine but is almost exactly the same to what is racing today.

http://www.youtube.com/watch?v=i_NpzU4pGjc
"I was having a ---" - Kimi Riakkonens response to Martin Brundles questioning of why he had missed Peles presentation to Michael Schumacher before the Brazilian GP 2006.
Top
DaveKillens
DaveKillens
34
Joined: 20 Jan 2005, 04:02

Post

And it's nothing to poo poo about. Those springs have to close large valves, at the limit of material science. And to top it off, they have to do it for hours and hours, 500, 600 miles (as well as practice and qualifying). Those puppies run red hot, and have to live in a constant oil spray to survive.
And as displayed, a lot of harminics going on between all the different parts. Get it wrong, and it's done blown up, bubba. :wink:
Top

Return to “Other racing series”