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post #1 of 6 Old 01-17-2008, 08:46 PM Thread Starter
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Which is better?

A "log" style turbo manifold, or an individual tube style turbo header.....and WHY?



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post #2 of 6 Old 01-17-2008, 08:59 PM
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Hellion says log style but EVERY other turbo person (even imports) have always said runner type.


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post #3 of 6 Old 01-17-2008, 09:35 PM Thread Starter
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I suspect the log style is more durable. I also, would think the runner style would make more power.
Im just wondering if theres any data on a direct comparison.


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post #4 of 6 Old 01-18-2008, 09:24 AM
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I never have seen Hellion say it is better, did they state that online somewhere? I thought they used a log for fitment purposes when trying to keep everything on the car. I know some log header designs tend to lead to hot spots in the header which ultimately lead to cracking. As far as which is better and why, I think there is not one ultimate best turbo header or kit design, it should all boil down to what is best for XYZ goals. With that said I do not see how a tubular header with individual runners could ever be worse than a log style but could see how a log could potentially be a bad option for some goals.

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post #5 of 6 Old 02-07-2008, 10:11 PM
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I know Hellion made 750rwhp with a log header. I can think of a popular grey 4cyl mustang that has been using a log header that runs in the nines. Huber performance mustang.So really how bad can a log header setup be.Hellion did state that they tried different header designs and did not gain any power over the log design.It all depends on what you are trying to accomplish.

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post #6 of 6 Old 02-07-2008, 10:15 PM
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I know people who made 750rwhp with Cartech and TTI street kits that use log headers. The Cartech ones always seemed to have sealing and cracking issues when at that point, the few TTI examples I can think of did not.

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