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DURATEC Ti-VCT Performance (2012-Current) The place to chat about any Duratec 2.0L Ti-VCT engine performance, tuning and exhaust related upgrades.

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Old 07-14-2013, 10:27 PM   #21
tschaeffer
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I think polished and stainless are different, not entirely sure on that though. But as far as know headers come in stainless ceramic chrome(which I would assume are the polished ones) and powdercoated. I'm not entirely sure about the polished if they are chrome or stainless
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Old 07-14-2013, 10:33 PM   #22
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Well the obx I had was polished stainless steel and it didn't have any coating on it for heat so it just let all the heat out but my new one has silver heat coating on it
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Old 07-15-2013, 12:32 AM   #23
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I'm a newb to mechanical stuff. As far as containing heat or letting it escape, which is better?
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Old 07-15-2013, 12:38 AM   #24
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Quote:
Originally Posted by ChalupaJones View Post
I'm a newb to mechanical stuff. As far as containing heat or letting it escape, which is better?
The higher the temperature difference from the exhaust to ambient the faster the gasses will flow out because there is more energy in the hot expanding gasses.

You want to keep the heat inside the exhaust pipe rather than venting it to atmosphere under the hood as much as possible.
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Old 07-15-2013, 12:40 AM   #25
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Quote:
Originally Posted by ChalupaJones View Post
I'm a newb to mechanical stuff. As far as containing heat or letting it escape, which is better?
Lol no problem dude,you want to contain the heat within the exhaust as much as possible for a few reasons,it flows better when it's contained and your car won't feel like a oven when you open the hood.
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Old 07-15-2013, 03:53 AM   #26
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A custom made header, would probably cost around 1k stainless steel in AU dollars.. the o2 issues, im not to sure of though.. my estimate anyway
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Old 07-15-2013, 04:45 AM   #27
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Custom header is to expensive and complicated lol
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Old 07-21-2013, 07:55 PM   #28
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these headers are supposed to workhttp://www.ssaccessories.com/servlet/the-1667/Maximizer-Exhaust-Header-Manifold/Detail
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Old 07-21-2013, 10:58 PM   #29
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Best option is to just wait for injected and actually get a header that's suppose to be for our focus instead of gambling with something that may or may not screw up
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Old 07-22-2013, 10:57 AM   #30
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Quote:
Originally Posted by suss6052 View Post
The higher the temperature difference from the exhaust to ambient the faster the gasses will flow out because there is more energy in the hot expanding gasses.

You want to keep the heat inside the exhaust pipe rather than venting it to atmosphere under the hood as much as possible.
Quote:
Originally Posted by Zuesskroph View Post
Lol no problem dude,you want to contain the heat within the exhaust as much as possible for a few reasons,it flows better when it's contained and your car won't feel like a oven when you open the hood.
Makes sense, so is there a definite answer to what type of header holds in more heat then? Powder coat or stainless?
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