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

TB Air foil question

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Old Aug 17, 2022 | 12:09 PM
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Default TB Air foil question

I’ve seen a common purchase for the stock LT1 TB air foil mod, I have an aftermarket 52mm BBK TB, will the air foil piece work with my TB just as it works on the stock 48mm?
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Old Aug 17, 2022 | 12:19 PM
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I don't think it will install OR fit.

You can use a die grinder to radius the center divider of the BBK and achieve the same result w/o buying or installing a bolt-on part.
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Old Aug 17, 2022 | 12:52 PM
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Doubtful, waste of money either way.
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Old Aug 17, 2022 | 01:23 PM
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Originally Posted by c4joshua
I’ve seen a common purchase for the stock LT1 TB air foil mod, I have an aftermarket 52mm BBK TB, will the air foil piece work with my TB just as it works on the stock 48mm?
All the BBK's I'm aware of have the airfoil cast in to them. If we are talking about the same unit then it's not needed and there's no place to attach it anyway. On stock TB's I always put them on. No they don't do a lot but they do something and they are cheap.
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Old Aug 17, 2022 | 01:28 PM
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Originally Posted by c4joshua
I’ve seen a common purchase for the stock LT1 TB air foil mod, I have an aftermarket 52mm BBK TB, will the air foil piece work with my TB just as it works on the stock 48mm?
Agreed with all
BKK and most performance TBs. The airfoil is built in. just not perfected. My knifeblade 58mm

BBK port and AF knifeblade


If you had a stock TB. And found a AF for a few dollars it would help out higher demanding CFM
Looks like binoculars.
May the torque be with you!
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Old Aug 17, 2022 | 01:30 PM
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^^^^That's pretty!
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