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Old 05-23-2013, 12:05 AM
CdnoilRAM's Avatar
CdnoilRAM CdnoilRAM is offline
I push the skinny pedal


 
Join Date: Jul 2009
Location: Calgary, AB, CA
Age: 31
Posts: 17,277
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Vehicle: 2009 Blown 349 Hemi
Trim Level: Sport - Modified
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Engine: 2009-2012 345ci (5.7L) Hemi V8 390hp 407lb/ft
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Thermoplastic manifolds should not be ported, they don't have enough material to maintain proper structural integrity, especially when boosted when the material is put under tension as opposed to compression. I'm amazed that a shop would even touch a thermoplastic manifold. The heads you can port a whole lot, but you shouldn't touch the intake manifold.

The only part that could potentially be ported is the throttle body opening if you plan to run a larger bore TB, however, since you're boosted you don't need a larger bore TB.

I'm just trying to figure out why you'd want to weaken your manifold when you already have a manifold that's cracked under boost.
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