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porting question

Old Jun 13, 2010 | 03:05 PM
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dkaszak88's Avatar
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From: new jersey
NJ porting question

so when you portout a 6 port what ports do u open up? primaries secondaries or auxillary? i cant seem to figure it out im looking into eithing doing as big a street port as possibl or a hand alf bridge or something its for a street car. i just cant seemto figure it out
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Old Jun 14, 2010 | 09:14 AM
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Aaron Cake's Avatar
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From: London, Ontario, Canada
ANY porting you do on the 6 port block will reduce low end torque. The 6 port blocks already have HUGE ports.

Limit your porting to the primary ports by moving them up a little. Don't move them out towards the rotor housing.

Move the exhaust ports up a few MM and widen them a few MM. Remove the diffuser.

Move the aux port out towards the rotor housing a little.

A good port template is the Mazdatrix 6 port template.
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