Titanium valve check... - Page 2

rod butcher · 09-05-2022, 10:56 AM

They also checked Joe Santangelo during tear down for titanium valves doing the mass volume test and weighing valves.

Rick J · 09-05-2022, 01:59 PM

Quote:

Originally Posted by dwydendorf

The tech guys could sonic check for hollow stems, they allready have a sonic checker for cage thickness.

Hollow stem steel valves are legal.

dwydendorf · 09-05-2022, 02:52 PM

I know they are legal, just mentioned that they could use the sonic checker to determine the mass lost by drilling the stems out.

GTS340 · 09-07-2022, 03:06 PM

Just need a test for acid has been poured into the head now.

Paul Haszlauer
7019 C/SA

Frank Castros · 09-07-2022, 07:45 PM

Quote:

Originally Posted by Bill Ringer

There are devices that can conclusively ID the material without removing the head, just remove the valve spring. With the spring off one can check the stem with an XRF metal analyzer. These are accurate and as small as a few pounds. The cost can be an issue as ones just for this type of test would be around $15K new, less for refurbished plus, they can be rented. If there are other components such as chassis parts that need the material verified it's possible the cost could be justified. I've used these, they're super easy to use and accurate.
This article has all the basic info on this technology - https://blog.metalvp.com/articles/ha...-honest-review

Bill Ringer needs to get back to the track with his High Country 'Cuda.

jimi vignogna · 09-08-2022, 04:01 PM

I was at the tear down on Saturday morning to speak with Travis and he was weighing Chucks valves , It was nice to see nhra actually checking stuff , I wish they had more man power to do tear down like it used to be.

Rick J · 09-08-2022, 04:44 PM

Quote:

Originally Posted by dwydendorf

I know they are legal, just mentioned that they could use the sonic checker to determine the mass lost by drilling the stems out.

Oh ok, it's just a calculation to determine weight loss.

09-05-2022, 10:56 AM	#11
rod butcher Member Join Date: Dec 2005 Posts: 252 Likes: 297 Liked 132 Times in 27 Posts	Re: Titanium valve check... They also checked Joe Santangelo during tear down for titanium valves doing the mass volume test and weighing valves.

09-05-2022, 02:52 PM	#13
dwydendorf Member Join Date: Jul 2006 Location: michigan Posts: 162 Likes: 251 Liked 19 Times in 7 Posts	Re: Titanium valve check... I know they are legal, just mentioned that they could use the sonic checker to determine the mass lost by drilling the stems out. __________________ ss/gt 93 t-bird

09-07-2022, 03:06 PM	#14
GTS340 Senior Member Join Date: Feb 2017 Location: Las Vegas, Nv Posts: 866 Likes: 269 Liked 1,340 Times in 407 Posts	Re: Titanium valve check... Just need a test for acid has been poured into the head now. Paul Haszlauer 7019 C/SA

09-08-2022, 04:01 PM	#16
jimi vignogna Junior Member Join Date: Dec 2002 Location: wappingers falls Posts: 5 Likes: 3 Liked 17 Times in 3 Posts	Re: Titanium valve check... I was at the tear down on Saturday morning to speak with Travis and he was weighing Chucks valves , It was nice to see nhra actually checking stuff , I wish they had more man power to do tear down like it used to be.