Honda Civic Performance - JDM Discussion Engine tech, forced induction, springs, shocks, brakes, tires, etc.

boring a throttlebody

Old 06-Jun-2007, 08:16 PM
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boring a throttlebody

i have a b20b throttle body and was wondering if it can be bored to 64mm to go with my skunk2 intake manifold
please help
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Old 06-Jun-2007, 08:43 PM
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boring it is the easy part, making a new throttle plate to fit properly is the hard part. call around to some engine/machine shops... it is probably going to run you around $150-$200.
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Old 06-Jun-2007, 09:26 PM
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max bore

whats the max bore i can getith a b20b throttle body cause i want 2 go 64mm with my skunk2 manifold
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Old 07-Jun-2007, 10:28 AM
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Make sure you port match the intake manifold.
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Old 07-Jun-2007, 03:08 PM
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Old 09-Jun-2007, 03:18 PM
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just buy an ITR t/b
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