I can't claim any gains since i didnt test anything, nor am i building them for sale....but i can tell you that they can be built to be 100% reliable. Mine have never leaked or rubbed or hit anything.....maybe i did something wrong
Headers and hi flow up pipes
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I can't claim any gains since i didnt test anything, nor am i building them for sale....but i can tell you that they can be built to be 100% reliable. Mine have never leaked or rubbed or hit anything.....maybe i did something wrong
I can't claim any gains since i didnt test anything, nor am i building them for sale....but i can tell you that they can be built to be 100% reliable. Mine have never leaked or rubbed or hit anything.....maybe i did something wrong
Nobody said that headers couldn't be reliable. They have been done before, and they will be done again. But I have seen a 7.3 diesel (FORD) with stainless fancy headers that seemed designed very well, but they melted in less than a month and became a worthless pile of scrap metal. Not exactly what someone wants to dump big $$$$ into.
Nobody said that headers couldn't be reliable. They have been done before, and they will be done again. But I have seen a 7.3 diesel (FORD) with stainless fancy headers that seemed designed very well, but they melted in less than a month and became a worthless pile of scrap metal. Not exactly what someone wants to dump big $$$$ into.
Material selection makes all the difference. stainless doesnt melt untill 2500 degrees so im not sure how they could melt. i would think something else would let go first at 2500 + egts
pluss if someone melts headers i would say piss poor tuning is to blame or the truck is being pushed too hard. i didnt know it was possable to sustain egts that hot tho
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It looked more like an advertisement. For a set of headers and a V2 cooling system. Maybe we can do a 2 for 1 special if you own an LLY. Except you didn't want to become a vendor here. I guess you guys have your own site for that.
I see your Love for me has grown and your colors are showing again.
I just spent 15 minutes typing up a long explanation to all Pats claims against me. Explaining once again what happened and why.
I deleted it because I'm sure it would have done no good. It would only sidetrack this thread more.
Sorry folks for stirring him up.
Ya, hang on, let me put dieselplace in my sig and see how well that goes over. Sorry my ass. :rofl:
BTW, I would like to see the 15 minutes of trash, because IMO if it doesn't come out, it will only breed more problems later on. Call me a cheerleader, but I am sure there is more than enough blame to go around. PM me if you must.
I know the truck will get hot and it is strictly a pulling truck. Even more so now, but I won't go into details. I will gladly take a picture the next time I am at his house. He was told that they were the "best" but they didn't last long. He payed a huge amount of money for them, I know that. He did crack a block this last season, and remember they don't have the nice tuning features we have. I don't know anything about the tuning of that truck.
Trying to keep this discussion alive,
But yesh stainless melts at 2500 degrees, but thats when its at atmospheric pressure. Theres a turbo adding alot of drive pressure throwing a wrench in the equation. so its not just 2500 degrees anymore
Pressure does NOT change the melting point, just the tensle strength. It could be cause for a blowout but NOT melting. Although stainless has a lower melting point than low carbon steel it retains its strength much better at high temps.
the addition of chromium adds strength at high temps...not just in stainless but in materials such as SA213, T21, T22, T91 and so on
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I agree and have plenty of knowledge that I am willing to share with anyone wanting to build their own stuff.
321
for turbocharged applications anything but 321 or 347 is a waste of your money
321 is alloyed with 1% titanium witch stabilizes it above 800 degrees C, 347 is alloyed with something else but has the same effect. you actually weld 321 with 347 wire
304 is not suited for sustained temps over 800 degrees C and WILL fatigue from heat stress!
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For nothing more than curiosity. Ya, that grade would be great if I could afford it. lol
I just wonder cause it's said some grades are better than others.
My headers are made using 321 stainless and wonder if this could be a contributing factor as to why I have not had some of the listed issues.
http://www.azom.com/Details.asp?ArticleID=967
I thought it was something like 900 degrees Celsius. Way hot at any rate. Thanks
inconel melts at 2540 F
AK Steel 321 is a stabilized austenitic stainless steel similar to Type 304 but with a titanium addition. This titanium addition reduces or prevents carbide precipitation during welding and in 427 - 816°C service. It also improves the elevated temperature properties of the alloy. AK Steel 321 provides excellent resistance to oxidation and corrosion and possesses good creep strength. It is used primarily in applications involving continuous and intermittent service temperatures within the carbide precipitation range of 427 - 816°C.
2417-2552 254SMO 1
2498-2696 440A, 440C
2507-2552 316, 316L,
2525-2633 22051
2552-2588 301,
2552-2597 330, 321, 347,
2552-2624 17-4PH
2552-2642 201, 304, 304L, 305, 309, 310,
2597-2750 430, 446
2642-2750 420
2696-2786 409, 410, 416
austenitic stainless is the 300 series
Maybe my terms weren't right. Not sure on the melted, but they warped ?? Enough that that were basically pinching off the exhaust.
I think your on the right track
Somehow I knew you'd agree. Appreciate that Paul.
If not built with enough expansion loops in the primarys they will fail because metal "grows" when it gets hot