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How To - Tips => Exhaust => Topic started by: lambocars on February 08, 2014, 06:33:09 AM
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handmade v12 exhaust manifold
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Beautiful!
I know how much work it takes to make headers. I made a set for my V8 in my Diablo.
You did a fantastic job!
You should top them off with a ceramic coat.
RT
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now that is what I am talking about, where did you get the flanges from????
I need a set
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Hello, flanges has made me a craftsman friend, do a set for you if you are 10 mm thick 316 stainless steel.
my will cost me 160 euros 4
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or you could have a file made and have them water cut... just a thought.
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its not hard to make a custom exhaust..
here is mine
(http://i198.photobucket.com/albums/aa222/juanseefoo/reventon/20140129_151534_zps2f737b90.jpg) (http://s198.photobucket.com/user/juanseefoo/media/reventon/20140129_151534_zps2f737b90.jpg.html)
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Good job solrac, but not all headers are as easy as yours.
RT
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Good job solrac, but not all headers are as easy as yours.
RT
wow nice. those look really cool.. and yes u are right.. mine was pretty easy lol.
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These are the ones I built
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Jets303…
Very nice!
I noticed the 12 cyl. exhaust manifolds join three-into-one and join the other three-into-one at a two-into-one collector. Is there a reason for this?
Again, nice work.
RT
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Jets
Please tell me that you still have the info for the guy that did your flanges
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Jets303…
Very nice!
I noticed the 12 cyl. exhaust manifolds join three-into-one and join the other three-into-one at a two-into-one collector. Is there a reason for this?
Again, nice work.
RT
RT
This is from Burns Stainless:
"It should be noted that six-cylinder and 12-cylinder engines are inherently balanced and even firing. That is, for an inline-six (I-6) cylinder engine, the firing order is such that cylinders fire alternating between the front 3 and rear three cylinders with a separation of 120 degrees (720/6). The cylinders of a V-6, engine, typically arranged in a 60 degree “V”, fire in an alternating fashion between banks also with 120 degree separation. A V-12 is essentially two I-6s (or two V-6s) joined together at the hip, with cylinders firing in an alternating fashion from bank-to-bank separated by 60 crank degrees (720/12). The melodical sound of a Ferrari V-12 is testimony to the even firing nature of these engines. Typically, I-6 exhausts are setup as two 3-1 headers. The front 3 cylinders are combined into one collector and the rear 3 into another. A V-6 engine normally has a 3-1 collected system on each bank. A V-12 typically has two such setups (4 x 3-1 headers). In many cases, the 3-1’s are combined into a final 2-1 resulting in a single exhaust pipe from each bank of 6 cylinders.
With this exhaust setup, the exhaust pulses into each 3-1 collector for all these combinations are separated by 240 crank degrees. The exhaust pulses are far apart and do not compete for flow area in the collector allowing for a relatively small collector outlet and resultant increased power band. Also, unlike the 180 degree configuration necessary on the 90 degree V-8s, the header packaging is straight forward."
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Adrian, If you can find someone who has a CNC plasma or a water jet they should be able to cut your flanges. I have found that water jet is rather expensive but was surprised how cheap laser was on some 1/4 inch thick plate parts I had cut. Plasma is probably the cheapest if you can supply them a CAD drawing. I can do the drawing if I had an exhaust manifold or head to measure. A gasket might do too.
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Eric,
I can do that, I can make and sent you dawings and or files, what kind do you need?
I do still need to get those axle adapters from you
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Adrian, The adapters are almost done, just need to cut the notches for the speedometer pickup. I will be doing some exhaust flanges for an Audi engine soon so could have yours cut at the same time. If you can send me a gasket that I could make a CAD drawing from that would work.
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I will get it out tomorrow