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TPI intake port diameters

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Old 12-26-2002, 06:38 PM
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Car: 90 IROC 5.7 hardtop
Engine: L98
Transmission: T5 swap
Axle/Gears: Yup -- they still work
TPI intake port diameters
Last night I was browsing some threads on TPI intake porting and found one post where the port tube diameters of the after-market intakes diamters were listed (factory was 1.475, Accel 1.725, etc). Be darned if I can find it again tonight.

Anyone have an idea where this info is ?

muchos gracias,
RP.
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Old 12-26-2002, 06:43 PM
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i know stock is 1.48 and the aftermarkets like edelbrock, accel, tpis... are 1.75 inches. so you are right on that. that info can be found in the tech articles somewhere
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Old 12-26-2002, 09:34 PM
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https://www.thirdgen.org/newdesign/faq/thirdgen.shtml

take a look here and you will see them about 1/4 the way down
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