WW
Open Headers and ZZ4 Cam
Thread Starter
Le Mans Master
Joined: Oct 2007
Posts: 9,685
Likes: 3,437
From: Akron Ohio
2025 Corvette of the Year Finalist - Modified
2024 C5 of the Year Winner - Modified
2023 C5 of the Year Finalist - Modified
2022 C5 of the Year Finalist - Modified
St. Jude Donor '09-'10-'11
Open Headers and ZZ4 Cam
Im doing the exhaust on my car and decided to share a video of it running with open long tube headers. It took a second to warm up but it sounds pretty good! Of course dad had to come over and play with it too! 
Enjoy!
http://video.google.com/videoplay?do...47458024681549
Enjoy!http://video.google.com/videoplay?do...47458024681549
Burning Brakes
Joined: Feb 2008
Posts: 988
Likes: 7
From: Sarasota Fl
Im doing the exhaust on my car and decided to share a video of it running with open long tube headers. It took a second to warm up but it sounds pretty good! Of course dad had to come over and play with it too! Enjoy!
http://video.google.com/videoplay?do...47458024681549
Enjoy!http://video.google.com/videoplay?do...47458024681549
Thread Starter
Le Mans Master
Joined: Oct 2007
Posts: 9,685
Likes: 3,437
From: Akron Ohio
2025 Corvette of the Year Finalist - Modified
2024 C5 of the Year Winner - Modified
2023 C5 of the Year Finalist - Modified
2022 C5 of the Year Finalist - Modified
St. Jude Donor '09-'10-'11
Hahaha I want to but thats just the camera quality. If you are standing anywhere near it you have to yell to be heard and it feels like someone is taking drumsticks to your chest. I want to race it like this but all the tracks have noise restrictions now. Im going to put cutouts after the cats before the mufflers though.
Race Director
Joined: Jun 2004
Posts: 13,957
Likes: 706
From: WI
I really hated to add the extra weight of mufflers but your right, there are restrictions. Some clubs require mufflers and some just have a DB cap. It's really loud, turn your volume to max for a more realistic experience.
http://media.putfile.com/Open-headers-72
http://media.putfile.com/Open-headers-72
Le Mans Master
Joined: Jul 2007
Posts: 5,043
Likes: 8
From: Tampa Florida
Your neighbors must have loved that
brings back memories.I've found running open headers while breaking in a new "non" roller cam is great way to get a neighbors' full attention. I recommend the hours of 11PM and 6AM for best results.
Thread Starter
Le Mans Master
Joined: Oct 2007
Posts: 9,685
Likes: 3,437
From: Akron Ohio
2025 Corvette of the Year Finalist - Modified
2024 C5 of the Year Winner - Modified
2023 C5 of the Year Finalist - Modified
2022 C5 of the Year Finalist - Modified
St. Jude Donor '09-'10-'11
On one side my neighbor stopped talking to me (this isnt the first car Ive modified) and on the other side the wife yells louder than my car all the time.
Melting Slicks
Joined: May 2007
Posts: 2,171
Likes: 1
From: Warwick RI
Im doing the exhaust on my car and decided to share a video of it running with open long tube headers. It took a second to warm up but it sounds pretty good! Of course dad had to come over and play with it too! Enjoy!
http://video.google.com/videoplay?do...47458024681549
Enjoy!http://video.google.com/videoplay?do...47458024681549
Corvette Stories
The Best of Corvette for Corvette Enthusiasts
How Much Horsepower Every Corvette Engine "LOST" in 1972
Joe Kucinski
Top 10 DOs and DON'Ts for Protecting Your Convertible Top!
Michael S. Palmer
Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!
Joe Kucinski
150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter
Joe Kucinski
8 Coolest Corvette Pace Cars (and Replicas) of All Time
Verdad Gallardo
Top 10 Corvette Engines RANKED by Peak Torque (70+ Years of Muscle!)
Joe Kucinski
Corvette ZR1X Will Be Pacing the Indy 500, And Could Probably Race, Too!
Verdad Gallardo
Top 10 Corvettes Coming to Mecum Indy 2026!
Brett Foote
Top 10 C9 Corvette MUST-HAVES to Fix These C8 Generation Flaws!
Michael S. Palmer
Thread Starter
Le Mans Master
Joined: Oct 2007
Posts: 9,685
Likes: 3,437
From: Akron Ohio
2025 Corvette of the Year Finalist - Modified
2024 C5 of the Year Winner - Modified
2023 C5 of the Year Finalist - Modified
2022 C5 of the Year Finalist - Modified
St. Jude Donor '09-'10-'11
haha it was pretty cold and it needs a tune so it kinda hesitates off idle. The only thing new is the cam. The rest has 110K on it.
Race Director
Joined: Apr 2003
Posts: 17,700
Likes: 1,667
From: moraga ca
Good sounds. At Infineon, there as a 115 db limit. I run headers which merge into a 4" y-pipe and a downturn with no mufflers. The different banks of cylinders cancel some of the noise just enough to let me run without mufflers and without their extra weight or restriction. I think it also helps with torque too.
Thread Starter
Le Mans Master
Joined: Oct 2007
Posts: 9,685
Likes: 3,437
From: Akron Ohio
2025 Corvette of the Year Finalist - Modified
2024 C5 of the Year Winner - Modified
2023 C5 of the Year Finalist - Modified
2022 C5 of the Year Finalist - Modified
St. Jude Donor '09-'10-'11
Thats cool! I wish I could do that. May grandpa used to run his '63 with open under the chassis headers back in the early '70s. My dad says there is nothing like hearing an open exhausted V8 screaming down the track!
Melting Slicks
Joined: May 2007
Posts: 2,171
Likes: 1
From: Warwick RI
