what's the advantage??
Thread Starter
Team Owner
Joined: Nov 2004
Posts: 20,715
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From: Sorrento Italy
Originally Posted by Ganey
The first one is part of the L-88 hood setup which has the filter in underside of the hood.
The second would work w/ a hole in the hood.
J/K
Race Director
Joined: Apr 1999
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From: CORVETTE 77 385 C.I. TEXAS
Giu
The L-88 hood takes in high pressure air at the base of the windshield.
The stock 73-79 hoods can be opened at the back of the center hood bulge. You might be able to do that w/ yours. Which hood do you have?
The L-88 hood takes in high pressure air at the base of the windshield.
The stock 73-79 hoods can be opened at the back of the center hood bulge. You might be able to do that w/ yours. Which hood do you have?
Thread Starter
Team Owner
Joined: Nov 2004
Posts: 20,715
Likes: 25
From: Sorrento Italy
Originally Posted by Ganey
Giu
The L-88 hood takes in high pressure air at the base of the windshield.
The stock 73-79 hoods can be opened at the back of the center hood bulge. You might be able to do that w/ yours. Which hood do you have?
The L-88 hood takes in high pressure air at the base of the windshield.
The stock 73-79 hoods can be opened at the back of the center hood bulge. You might be able to do that w/ yours. Which hood do you have?
Thread Starter
Team Owner
Joined: Nov 2004
Posts: 20,715
Likes: 25
From: Sorrento Italy
Originally Posted by Ganey
Yes, your hood can be opened at the back of the center hood bulge if not already open. Is this clear- do you know what I mean?
Race Director
Joined: Sep 1999
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From: Plano TX
The L-88 setup in the first pic is superior. You need an airbox bonded to the underside of the hood like this:
The bottom of the windshield is a high pressure area and more air will be forced into the engine than if you open the front.
The bottom of the windshield is a high pressure area and more air will be forced into the engine than if you open the front.
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Race Director
Joined: Apr 1999
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From: CORVETTE 77 385 C.I. TEXAS
The opening at back takes in high pressure air at speed & lets hot air out when stopped. At speed the side vents let hot air out. You are in good shape like it is.
Another way is to use an underhood air box.
Another way is to use an underhood air box.
Pro
Joined: Dec 2005
Posts: 596
Likes: 1
That tall K&N you're running will allow more airflow than anything going. All you have to do is make sure the air is available as Ganey said above. Your hood is designed to induct air, as long as the back of the cowl is open for flow.
Are you running without vacc advance?
What engine is that? Looks great!!
Are you running without vacc advance?
What engine is that? Looks great!!
Thread Starter
Team Owner
Joined: Nov 2004
Posts: 20,715
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From: Sorrento Italy
Originally Posted by Restorod '79
That tall K&N you're running will allow more airflow than anything going. All you have to do is make sure the air is available as Ganey said above. Your hood is designed to induct air, as long as the back of the cowl is open for flow.
Are you running without vacc advance?
What engine is that? Looks great!!
Are you running without vacc advance?
What engine is that? Looks great!!
Thread Starter
Team Owner
Joined: Nov 2004
Posts: 20,715
Likes: 25
From: Sorrento Italy
Originally Posted by zwede
The L-88 setup in the first pic is superior. You need an airbox bonded to the underside of the hood like this:
The bottom of the windshield is a high pressure area and more air will be forced into the engine than if you open the front.
The bottom of the windshield is a high pressure area and more air will be forced into the engine than if you open the front.
Burning Brakes
Joined: Aug 2005
Posts: 1,209
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From: Putnam county NY
2025 c3 ('68-'73) of the Year Finalist - Unmodified
2024 C3 of the Year Finalist - Unmodified
Originally Posted by panic
i have a high rise one...
Drifting
Joined: Dec 2004
Posts: 1,345
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Originally Posted by Restorod '79
That tall K&N you're running will allow more airflow than anything going. All you have to do is make sure the air is available as Ganey said above. Your hood is designed to induct air, as long as the back of the cowl is open for flow.
Are you running without vacc advance?
What engine is that? Looks great!!
Are you running without vacc advance?
What engine is that? Looks great!!
The original style L-88 hood not only provide slightly pressurized air to the engine which at speed more than makes up for the slightly reduced restriction of the K&N vented lid. Further the base of the windshield air inlet provide cooler denser air providing more ultimate power.