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I supported Toymods
Location:
Perth, Western Australia
Registered:
December 2002
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Re: Which type of manifold?
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Sat, 06 September 2003 02:31
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For general street duties, it doesn't really matter what you use. Manifold design becomes a factor when you are chasing a particuular trait in your motor. For example if you want the cheapest manifold, the log type is the go. If you want t manifold that works well in the low to mid range, an interference type as in your second photo is the go, while if you're chasing topend power, a tuned length (ie four into one), is your best option.
Longevity is based on construction, more than any other reason. Thin wall naturally won't last as long as thick wall if you allow the manifold to cool down between use, nor wil manifolds that dump hot gas directly onto runner walls - the gas will slowly eat the steel away.
Turbo response can also be dictated by runner length, generally the longer the runner the longer the response, but you won't notice this on the street. Further I won't mention pulse length of the pipes as the gas will flow in waves and there will be an optimal length dependant on the setup, again, you won't notice this on the street.
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| | Subject | Poster | Date |
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Which type of manifold?
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kassma | Sat, 06 September 2003 00:49 |
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Re: Which type of manifold?
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CLG | Sat, 06 September 2003 02:31 |
