C5 Tech Corvette Tech/Performance: LS1 Corvette Technical Info, Internal Engine, External Engine, Tech Topics, Basic Tech, Maintenance, How to Remove & Replace
Sponsored by:
Sponsored by:

Cutting airlid

Thread Tools
 
Search this Thread
 
Old Jul 3, 2003 | 10:49 AM
  #1  
mrtoner's Avatar
mrtoner
Thread Starter
Drifting
Supporting Lifetime
15 Year Member
 
Joined: May 2003
Posts: 1,328
Likes: 3
From: Las Vegas Nevada
Default Cutting airlid

I have seen some messages on cutting the airlid for more airflow.

Are there any tips or recommendations on where to cut, and how much?

Thanks in advance for the help!
Reply
Old Jul 3, 2003 | 10:56 AM
  #2  
carpe dm's Avatar
carpe dm
Le Mans Master
15 Year Member
 
Joined: Oct 1999
Posts: 8,205
Likes: 40
From: Tucson AZ
Default Re: Cutting airlid (mrtoner)

GM has put their "cut" in the top, center of the cover. If you are not worried about water ingestion, you can space a series of holes all across the cover. Or, simply cut out most of it! :)
Reply
Old Jul 3, 2003 | 11:37 AM
  #3  
bigSS's Avatar
bigSS
Racer
 
Joined: Jun 2003
Posts: 385
Likes: 0
From: West Lafayette Indiana
Default Re: Cutting airlid (carpe dm)

I just took a 1inch holesaw and cut as many holes as I could fit (turned out to be 21 I believe). Worked quiet well, and it was a noticeable SOTP increase! Worth the time.
Reply
Old Jul 3, 2003 | 01:00 PM
  #4  
BQuicksilver's Avatar
BQuicksilver
Safety Car
15 Year Member
 
Joined: Dec 2001
Posts: 4,295
Likes: 2
From: Indianapolis Indiana
Cruise-In III Veteran
Cruise-In IV Veteran
Default Re: Cutting airlid (bigSS)

I just took a 1inch holesaw and cut as many holes as I could fit (turned out to be 21 I believe). Worked quiet well, and it was a noticeable SOTP increase! Worth the time.
Did the same, and didn't notice but about 1/3 of what the blackwing gave. It's an okay cheap mod if you don't mind a little water getting on your filter at times.
Reply
Old Jul 3, 2003 | 01:04 PM
  #5  
Colorado Chuck's Avatar
Colorado Chuck
Instructor
 
Joined: May 2001
Posts: 238
Likes: 1
From: Conifer CO
Default Re: Cutting airlid (BQuicksilver)

I also cut holes in mine, but if these can allow water to get on the filter, what about the Blackwing and the others with twin cone filters? These would be fully exposed.
Reply
Old Jul 3, 2003 | 01:32 PM
  #6  
BQuicksilver's Avatar
BQuicksilver
Safety Car
15 Year Member
 
Joined: Dec 2001
Posts: 4,295
Likes: 2
From: Indianapolis Indiana
Cruise-In III Veteran
Cruise-In IV Veteran
Default Re: Cutting airlid (Colorado Chuck)

Exactly, it's just water that can drip on where you open the hood (assuming you have the hood seal)...but why not just do it right if you're going to expose things a little.
Reply
Old Jul 3, 2003 | 01:50 PM
  #7  
IMQUIK's Avatar
IMQUIK
Le Mans Master
10 Year Member
 
Joined: Mar 2002
Posts: 5,266
Likes: 1
From: Kennesaw Ga
Default Re: Cutting airlid (mrtoner)

I used a 1 inch unibit.





[Modified by IMQUIK, 1:50 PM 7/3/2003]
Reply
Old Jul 3, 2003 | 02:59 PM
  #8  
turmat's Avatar
turmat
Melting Slicks
15 Year Member
 
Joined: Jan 2003
Posts: 2,681
Likes: 1
Default Re: Cutting airlid (bigSS)

I just took a 1inch holesaw and cut as many holes as I could fit (turned out to be 21 I believe). Worked quiet well, and it was a noticeable SOTP increase! Worth the time.
:withstupid:

This and a $5.00 hood seal is the best "practically free" mod you can do. You will notice the difference and it sounds better. :cool:
Reply
Corvette Stories

The Best of Corvette for Corvette Enthusiasts

story-0

10 Ugly Corvettes That We Still Kinda Love

 Joe Kucinski
story-1

Top 10 Most Expensive Corvettes Ever Sold on Bring A Trailer

 Brett Foote
story-2

10 Things Every Corvette Owner Needs (2026 Edition)

 Michael S. Palmer
story-3

8 Most "Only Corvette Owners Understand" Quirks and Problems

 Pouria Savadkouei
story-4

10 Reasons the C6 Z06 is Still A Performance Benchmark After 20 Years

 Joe Kucinski
story-5

How Much Horsepower Every Corvette Engine "LOST" in 1972

 Joe Kucinski
story-6

Top 10 DOs and DON'Ts for Protecting Your Convertible Top!

 Michael S. Palmer
story-7

Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!

 Joe Kucinski
story-8

150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter

 Joe Kucinski
story-9

8 Coolest Corvette Pace Cars (and Replicas) of All Time

 Verdad Gallardo
Old Jul 3, 2003 | 03:08 PM
  #9  
mrtoner's Avatar
mrtoner
Thread Starter
Drifting
Supporting Lifetime
15 Year Member
 
Joined: May 2003
Posts: 1,328
Likes: 3
From: Las Vegas Nevada
Default Re: Cutting airlid (turmat)

To everyone that responded:

Thanks!
Reply
Old Jul 3, 2003 | 03:17 PM
  #10  
edmaverik's Avatar
edmaverik
Burning Brakes
 
Joined: Feb 2003
Posts: 1,014
Likes: 0
From: Buford GA
Default Re: Cutting airlid (mrtoner)

Here is my airlid...I used a dremel and drew a rectangular grid and made the cuts with a fiberglass cutoff disc.

Reply

Get notified of new replies

To Cutting airlid





All times are GMT -4. The time now is 07:51 AM.

story-0
10 Ugly Corvettes That We Still Kinda Love

Slideshow: 10 ugly Corvettes that we still kinda love.

By Joe Kucinski | 2026-06-03 10:34:17


VIEW MORE
story-1
Top 10 Most Expensive Corvettes Ever Sold on Bring A Trailer

A lot of money has changed hands at the online auction house over the years.

By Brett Foote | 2026-06-03 10:21:50


VIEW MORE
story-2
10 Things Every Corvette Owner Needs (2026 Edition)

Slideshow: 10 great gifts Corvette enthusiasts actually want for Father's Day!

By Michael S. Palmer | 2026-06-03 15:43:40


VIEW MORE
story-3
8 Most "Only Corvette Owners Understand" Quirks and Problems

Slideshow: These are the quirks, annoyances, and oddly lovable problems that every Corvette owner eventually learns to live with.

By Pouria Savadkouei | 2026-05-28 09:31:39


VIEW MORE
story-4
10 Reasons the C6 Z06 is Still A Performance Benchmark After 20 Years

Slideshow: 10 reasons why the C6 Z06 is still a performance benchmark after 20 years.

By Joe Kucinski | 2026-05-27 17:20:09


VIEW MORE
story-5
How Much Horsepower Every Corvette Engine "LOST" in 1972

Slideshow: How much horsepower every Corvette engine lost in 1972.

By Joe Kucinski | 2026-05-27 16:54:53


VIEW MORE
story-6
Top 10 DOs and DON'Ts for Protecting Your Convertible Top!

Slideshow: How to Protect A Convertible Top: 10 DOs & DON'Ts

By Michael S. Palmer | 2026-04-03 00:00:00


VIEW MORE
story-7
Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!

Slideshow: The 10 most explosive Corvettes ever built based on power-to-weight ratio.

By Joe Kucinski | 2026-05-20 07:23:03


VIEW MORE
story-8
150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter

Slideshow: From C1 to C8 we compare every Corvette generation by the numbers.

By Joe Kucinski | 2026-05-12 16:54:12


VIEW MORE
story-9
8 Coolest Corvette Pace Cars (and Replicas) of All Time

Slideshow: Some Corvette pace cars became collectible legends, while others perfectly captured the look and attitude of their era.

By Verdad Gallardo | 2026-05-11 09:50:51


VIEW MORE