 Euro Header Collector, to weld or not to weld? |
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| jhadler |
 Oct 17 2005, 02:18 PM
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#1
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Long term tinkerer...  Group: Members Posts: 1,879 Joined: 7-April 03 From: Lyons, CO Member No.: 529  |
Hey all,
My other question... I ahve a European Header that I've been long planning on putting back into the car. It looks like the collector is designed to just bolt up to two of the primaries, and that's it. Is it better to weld the collector to the primaries? Or just clamp it? Welded would prevent any axhaust leaks, but welding would also make it more rigid, and may stress something under thermal expansion. Thoughts? Suggestions? Reason being is that I'd like to try using a different collector. I'd like to try the Flowmaster scavenger collector, effectively getting me an additional 18" of secondary and making the system a 4-2-1 instead of a 4-1. The class I run in doesn't allow internal engine mods, so I need to go with the strong suit of the engine, and that's mid-range torque. Thanks again! -Josh2 |
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| ChrisFoley |
Oct 17 2005, 08:08 PM
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I am Tangerine Racing Group: Members Posts: 7,935 Joined: 29-January 03 From: Bolton, CT Member No.: 209 Region Association: None 
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I'm not too concerned with the stresses from thermal expansion since the shape of the pipes should allow for that without causing cracks etc. The real issue comes when you need to remove the header, either to work on the car or to sell the header to someone else. (Someday that Tangerine Evo will be within your budget. (IMG:http://www.914world.com/bbs2/html/emoticons/smile.gif) ) You can't really weld around the primaries enough to fully seal the connections so you would only be doing it for retention of the collector. The stock tabs should work ok for that, along with a muffler bracket, and the tabs are easy to repair should one tear off at some point. (I won my appeal but the penalty was not increased. (IMG:http://www.914world.com/bbs2/html/emoticons/mad.gif) If I hadn't appealed the penalty might have been reduced since he appealed too. (IMG:http://www.914world.com/bbs2/html/emoticons/screwy.gif) ) |
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Posts in this topic
jhadler Euro Header Collector Oct 17 2005, 02:18 PM
Racer Chris I strongly recommend against welding the primaries... Oct 17 2005, 04:24 PM jhadler Thanks for the info Chris!
Yeah, I do so wan... Oct 17 2005, 04:40 PM jhadler So Chris,
Is it the issue with thermal expansion ... Oct 17 2005, 04:53 PM
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