C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

What are the differences in the tpi bases.....

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Old Sep 5, 2002 | 01:18 AM
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Default What are the differences in the tpi bases.....

From a stock L-98 base to Accel base, all the other aftermarket bases, what is the main difference? Diameter of base runners? Length? Shape? Does anyone have close ups of their aftermarket bases? What about long ram/ short ram, are the bases different or just the plenum/runners? I've never really looked close at any of the aftermarket ones, so I'm really dumb to them! :confused:
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Old Sep 5, 2002 | 01:28 AM
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Ok well I can give you stock TPI intake manifold vs. Accel intake manifold base pictures. The ports on the accel base are huge compared to the stock one.

















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Old Sep 5, 2002 | 01:39 AM
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Default Re: What are the differences in the tpi bases..... (sinistervette)

main differences are the flow numbers and port velocity basically
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Old Sep 5, 2002 | 07:35 AM
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Default Re: (scorp508)

Scorp,
If both of these intakes are still off, could you measure the diameter of the runners(where the runner bolt to base)as well as port dimensions(where base meets cyl. heads)? That would really help! Thanks for the great pics. :cheers:
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Old Sep 5, 2002 | 08:44 AM
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Default Re: What are the differences in the tpi bases..... (vader86)

Great pics. Haven't seen a side X side comparison b/4
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