Question about side pipes
Thread Starter
Heel & Toe
Joined: Feb 2005
Posts: 20
Likes: 0
Question about side pipes
I am installing a set of Hooker side mount headers and pipes. I now have the pipes mocked up to the side of the car, and it appears that the opening at the back end of the pipes (where it turns out), is slightly angled upward. I think it looks pretty cool, but then again I don't want my pipes to fill up with water when it rains. I can bend the mounting tabs to change this, if anyone thinks I should. Is this normal?
Team Owner
Joined: Jun 2004
Posts: 20,216
Likes: 4
From: Smile, it's just the internet.
You can adjust that. The bushings have enough give in them that you can angle the pipe a few degrees either direction before you lock everything down.
Mine point down ever-so-slightly.
Mine point down ever-so-slightly.
Instructor
Joined: May 2004
Posts: 162
Likes: 0
From: paramus nj
I bought brand new hooker header and sidepipes for my 68 to replace the old ones. Before they put the mufflers, the rebuilt 454 was practically unbearable at idle .. my dad drove it a few times within 2 weeks and he had to get the mufflers .. With the mufflers, you can hear the radio etc, but they do open up on the highway. I don't know how much exactly, as it's still only a few hundred miles on the rebuild, and havn't done anything extreme .. If you have no mufflers .. then I don't think you'll be able to hear much :p
At least our mufflers are removeable, so going to remove them every once in a while.
kosta
At least our mufflers are removeable, so going to remove them every once in a while.
kosta
Melting Slicks
Joined: Jan 2005
Posts: 3,036
Likes: 5
From: Raleigh NC
mine point slightly down also. how do we take the mufflers out? disco the sidepipes at the fitting? I assume the mufflers(baffles whatever) sit right there near the collector? whats the best way to remove the sidepipe from the header without damaging it aesthetically? thanks! Dave
Le Mans Master
Joined: Apr 2000
Posts: 5,202
Likes: 10
From: cincinnati ohio
St. Jude Donor '09
I cut off the forward mounting tab on my sidetubes, don't see the need for it. Anyway I bent the remaining tab slightly and angled mine downward...I think it looks right 
Last edited by yellow 72; May 4, 2005 at 05:18 PM.
Corvette Stories
The Best of Corvette for Corvette Enthusiasts
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
10 Revolutionary 'Corvette Firsts' Most People Don't Know
Joe Kucinski
5 Reasons to Upgrade to an LS6-Powered Corvette; 5 Reasons to Stay LT2
Michael S. Palmer
Thread Starter
Heel & Toe
Joined: Feb 2005
Posts: 20
Likes: 0
Originally Posted by Sacredgrooves
mine point slightly down also. how do we take the mufflers out? disco the sidepipes at the fitting? I assume the mufflers(baffles whatever) sit right there near the collector? whats the best way to remove the sidepipe from the header without damaging it aesthetically? thanks! Dave
Thread Starter
Heel & Toe
Joined: Feb 2005
Posts: 20
Likes: 0
Originally Posted by yellow 72
I cut off the forward mounting tab on my sidetubes, don't see the need for it. Anyway I bent the remaining tab slightly and angled mine downward...I think it looks right
Thread Starter
Heel & Toe
Joined: Feb 2005
Posts: 20
Likes: 0
Originally Posted by CGGorman
You can make them almost as quiet as an under-car performance system or as loud as God. Your choice. Performance is inversly proportional to loudness.
Team Owner
Joined: Jun 2004
Posts: 20,216
Likes: 4
From: Smile, it's just the internet.
Open pipes (with properly designed headers) generally perform better at high RPMs. The lack of backpressure can sometimes hurt the low end. When people claim that open pipes hurt performance they are usually dealing with an improperly designed exhaust system or an engine that is cammed to to thrive on backpressure.
Pro
Joined: Jul 2002
Posts: 723
Likes: 0
From: North Port, FL
Originally Posted by CGGorman
Open pipes (with properly designed headers) generally perform better at high RPMs. The lack of backpressure can sometimes hurt the low end. When people claim that open pipes hurt performance they are usually dealing with an improperly designed exhaust system or an engine that is cammed to to thrive on backpressure.
1) 655 Ft Lbs at 3600 RPM and 642 HP at 6000 RPM
2) 655 Ft Lbs at 4000 RPM and 630 HP at 5800 RPM
3) 635 Ft Lbs at 4600 RPM and 632 HP at 5800 RPM
In total we did 34 pulls and tried to optimise timing and jeting for each configuration.