 Sodium Valves? |
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| stugray |
 Nov 18 2012, 12:45 PM
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Advanced Member  Group: Members Posts: 3,824 Joined: 17-September 09 From: Longmont, CO Member No.: 10,819 Region Association: None  |
I was once told by one of the resident "experts" on this forum (who has not been around lately) that I should replace my sodium filled valves with stainless. However after visiting the local RSR racing mechaninc (who is machining my case and inspecting my heads), HE said that he goes out of his way to FIND sodium filled valves for race engines. He said that on Air-cooled engines, the sodium helps pull the heat from the heads.
Any comments or suggestions regarding sodium vs. stainless? I also heard that a simple change from two-angle to three-angle valve seats can increase flow by more than 20% with no other changes to the heads. Good news is that I should be re-assembling the engine without the deck height problems over thanksgiving weekend. Hope to have it running by Xmas. (IMG:style_emoticons/default/piratenanner.gif) Stu |
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Posts in this topic
stugray Sodium Valves? Nov 18 2012, 12:45 PM
76-914 I'll give you a little hint. Aircraft engines ... Nov 18 2012, 12:58 PM gandalf_025 I know Chevrolet used sodium filled exhaust valves... Nov 18 2012, 01:01 PM WLD419 Sodium valves = good Old school tech , they withst... Nov 18 2012, 01:08 PM gothspeed As long as the engine is well maintained and not a... Nov 18 2012, 01:27 PM
barefoot
As long as the engine is well maintained and not ... Jul 5 2014, 06:33 AM Keyser Sose I don't think you're going to get a more e... Jul 5 2014, 09:47 PM shoguneagle I, also, will give you a little hint. STAY WITH T... Nov 18 2012, 02:16 PM ConeDodger In theory. The sodium does keep the heat out but I... Nov 18 2012, 02:19 PM rdauenhauer I call :stromberg: on that thinking.
Rob sounds... Nov 18 2012, 05:12 PM ConeDodger
I call :stromberg: on that thinking.
Rob sound... Nov 19 2012, 10:50 AM edwin I thought a bit of raby's thinking was to do w... Nov 18 2012, 05:23 PM rdauenhauer BTW this was beat to death here a few yrs ago. :... Nov 18 2012, 05:42 PM bulitt Sodium valves transfer heat to the valve guides. ... Nov 18 2012, 07:42 PM HAM Inc The Sodium in the valves transfer heat away from t... Nov 18 2012, 08:01 PM Dave_Darling The stock heads already have a three-angle job on ... Nov 18 2012, 08:02 PM HAM Inc
Not true, I see many modern heads, and I can say ... Nov 18 2012, 08:11 PM HAM Inc Just to continue on the thread hijack, I attached ... Nov 18 2012, 08:20 PM bulitt
Just to continue on the thread hijack, I attached... Nov 19 2012, 05:58 AM Mark Henry
Your bench looks familiar...you do work for Jake... Nov 19 2012, 08:23 AM pete-stevers What does the inside of a sodium valve look like? Nov 18 2012, 09:05 PM sixnotfour hollow with sodium in it Nov 18 2012, 09:35 PM John Jentz
I was once told by one of the resident "expe... Nov 19 2012, 11:12 AM brant another thing I don't see mentioned in this th... Nov 19 2012, 11:31 AM worn
another thing I don't see mentioned in this t... Nov 19 2012, 01:10 PM Mark Henry A lot of the sodum is better crowd info is coming ... Jul 5 2014, 06:56 AM Jake Raby The worst failures I've ever seen have come fr... Jul 5 2014, 07:08 AM brant
The worst failures I've ever seen have come f... Jul 5 2014, 09:07 PM bulitt :agree: Sodium corrodes steel. Only a matter of ... Jul 5 2014, 12:39 PM  |
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