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Author Topic: Custom Plenum?  (Read 354 times)

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Offline JMR

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Re: Custom Plenum?
« on: November 07, 2012, 10:33:46 am »
Hi Tim

Not really at the power level your looking at as the std plenum is fairly good, with actually little flow loss. A custom plenum will end up a very similar result for a lot of effort.

A stage one type head and Piper 270 should make around 130-135 without to much trouble on an 1800 bottom end with a decent exhaust system...closer to 140hp is possible if the airbox is modded and a tubular type manifold is used.

Peak numbers are less important really for a road engine as you want good low-mid range grunt which the above should provide.

 

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