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> ? Long or short intakes for dual carbs
ETMracing
post Sep 23 2014, 08:58 AM
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I am currently running a 2.0/4 with a cam and dual 44idf webers on Tangerine cable linkage and short intake manifolds. My question is what are the benefits/downsides on the taller intake manifolds? I have the option to run both
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stugray
post Sep 23 2014, 08:56 PM
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I know that on my other NA boxer engine there is an aftermarket part (crawford billet power blocks) that extends the intake manifold runner length over stock.

This results in an almost perfect shift of the torque curve downwards in the RPM range.
So if even remotely apples to apples:
longer runners = higher torque at lower RPM
shorter runners = higher torque at higher RPM
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