Turbo & Supercharge (Forced Induction) Posts regarding Turbochargers, Superchargers and any other method for Forced Induction.

Whats better - equal length manifold or log style?

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Old Jul 26, 2010 | 12:40 PM
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Default Whats better - equal length manifold or log style?

Whats a better manifold to go with....equal length or log style? Are there major benefits to going with one over the other?
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Old Jul 26, 2010 | 08:59 PM
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For some things, Google is good.

Equal length vs. log, turbo position is the same:
http://www.sr20forum.com/turbo/84358-equal...html#post745652

Tubular vs. log, not same turbo position, different engine
http://www.full-race.com/articles/1.8T_tur...est_writeup.pdf

log: spools faster by a tiny bit
tubular: more power by a lot
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Old Jul 26, 2010 | 09:10 PM
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doesnt really matter until you start making lots of power

logs are cheaper and generally stronger/easier to maintain

equal length is nice and all but when your spending 3x as much as you would for a log, if you only plan on putting down 300hp

its not worth it that money is better spent on other items (fuel for example)
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Old Jul 29, 2010 | 06:47 AM
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Well, I've had both. My first one was an Alpine log manifold. After I port matched the Alpine manifold with the head and turbine inlet it seemed to work VERY well. I did over 300whp with the Alpine manifold no problem.

Now I'm running a Maintec Equal Length Race manifold. As far as looks go, there's no comparison. Its beautiful. As far as flow goes I can't really tell the difference.
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