no performance increase and I've seen plenty of carnage pictures from parts of it going down the intake.
do these things actually work
Thread Starter
Melting Slicks
Joined: May 2005
Posts: 3,053
Likes: 0
From: OREGON
do these things actually work
looking thru the corvette catalog, and i came up upon the air foils that go on the throttle body, and the smooth air intake tube for the tuned port injection... and do these things actually work, or are they just another gimmick?
Drifting
Joined: May 2004
Posts: 1,543
Likes: 1
From: Levittown NY
Drifting
Joined: Sep 2005
Posts: 1,575
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From: Lowell Arkansas
I hadn't heard of any of them coming apart. My corvette came with one on it when I bought it.
It sounds like I might take it off.
Funny TPIS makes them sound like the best thing since sliced bread on their webb site.
I left mine on my vette, because I figured it couldn't hurt anything.
It sounds like I might take it off.
Funny TPIS makes them sound like the best thing since sliced bread on their webb site.
I left mine on my vette, because I figured it couldn't hurt anything.
Team Owner
Joined: Sep 2001
Posts: 62,160
Likes: 1,733
From: Athens AL
C7 of the Year - Unmodified Finalist 2021
C4 of Year Finalist (performance mods) 2019
Have heard of them coming loose and getting sucked into the intake.
However, as far as the catalogs go, my recommendation is to pick yourself out a hat, maybe a shirt, and throw the thing in the trash.
However, as far as the catalogs go, my recommendation is to pick yourself out a hat, maybe a shirt, and throw the thing in the trash.
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Le Mans Master
Joined: Jan 2005
Posts: 6,116
Likes: 3
I those things are in one of the faqs listed under "mods that don't work". I'm ashamed to say that I had one on my LT1 Z28 about 14 years ago when I didn't know better... ZERO performance gains.
I can't believe those things are still in the catalogs.
I can't believe those things are still in the catalogs.
if they don't do anything why do all the new replacement ones have them such as BBK, etc....?
Race Director
Joined: Mar 2006
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From: Sherwood, Arkansas
Pro
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From: BGM NY
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Drifting
Joined: Sep 2005
Posts: 1,575
Likes: 3
From: Lowell Arkansas
I'm taking mine off. I am in the middle of installing a miniram, so when I put it back together I will make sure it does not have the airfoil.
Was there anything in place of the air foil from the factory?
What did the air foil screw into?
Did they have to drill a hole for the screw, or was the screw hole already there?
I am just wondering how the air foil was attached if there was nothing there to begin with.
scary scary scary
At any rate, I will take mine off, and leave the screw hole with nothing in it.
Thanks for the information.
Le Mans Master
Joined: Oct 2004
Posts: 5,841
Likes: 19
From: CLT, North Carolina
I would think if you tested it on a stock engine back to back on a carefully calibrated dyno you would observe no change one way or the other. The theory behind the design is good because airflow likes a radiused entry. The problem is a stock engine flows so little air that the radiused entry would not come into play and as others have stated it would most likely fall off and get sucked into the engine unless you were careful about how you installed it, Loctite, good grade of screws torqued, etc. I wouldn't bother. Get big gains by putting a good set of heads on the engine instead.
