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C5 Z06 180 degree header build thread

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Old Feb 2, 2017 | 03:05 PM
  #61  
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Default Amazing work....

Originally Posted by Bill Curlee
SIMPLY AMAZING! My Brother; YOU ARE SERIOUSLY TALENTED!

That's a serious NEST OF SNAKES!

Other than the sound, what HP/TQ advantages would you expect from the 180 deg design over a set of tuned racing headers?

Bill
Amazing work....!

Regarding the O2 sensors and placement, I'd love to hear how it's running with the

change in exhaust piping. My first guess is it would be a mess to tune....or less than perfect when done,

but I'll think about this and jump back in when I can re-read the thread and collect my thoughts.

Good Job!
Chuck CoW
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Old Feb 6, 2017 | 08:59 PM
  #62  
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Merge collectors near done. I'll have to wait to weld the seams in the oval megaphone until the next section is at least tacked on to prevent tear dropping the seams. My desk job is taking a toll on my welding. Not a lot of torch time in the past 5 years and I'm a bit rusty, but it's coming back.

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Old Feb 6, 2017 | 09:03 PM
  #63  
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Originally Posted by Bill Curlee
SIMPLY AMAZING! My Brother; YOU ARE SERIOUSLY TALENTED!

That's a serious NEST OF SNAKES!

Other than the sound, what HP/TQ advantages would you expect from the 180 deg design over a set of tuned racing headers?

Bill
Thanks.

I'm not expecting an increase in power, only a close equivalent to a quality set of off the shelf headers. With the long primaries I have planned, a boost in mid range torque could be expected and hopefully without loosing more than a few top end ponies.
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Old Feb 6, 2017 | 09:04 PM
  #64  
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Originally Posted by Chuck CoW
Amazing work....!

Regarding the O2 sensors and placement, I'd love to hear how it's running with the

change in exhaust piping. My first guess is it would be a mess to tune....or less than perfect when done,

but I'll think about this and jump back in when I can re-read the thread and collect my thoughts.

Good Job!
Chuck CoW
Thanks.

Any input you would have on the possible O2 sensor issues would be greatly appreciated.
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Old Feb 8, 2017 | 12:19 AM
  #65  
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Wow this is amazing! It's coming along nicely!
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Old Feb 8, 2017 | 02:29 AM
  #66  
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Is this the sound?

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Old Feb 8, 2017 | 03:03 AM
  #67  
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amazing work man, looking forward for the finish product, i am very glad someone is making this a reality and dont mind sharing it

if your willing to make another set please let me know, id def be willing to send cash your away for a set hahahaha



a year ago me and my buddy tried to attempt doing a 180 degree headers for C5 and C6 but we bailed out due time and us being impatient

here some quick photos of our mock up





https://cimg6.ibsrv.net/gimg/www.cor...7e72e9852d.jpg

https://cimg7.ibsrv.net/gimg/www.cor...ac8e5cd124.jpg

https://cimg3.ibsrv.net/gimg/www.cor...82fef742f6.jpg

Last edited by Revolver ZSTi; Feb 8, 2017 at 03:05 AM.
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Old Feb 8, 2017 | 09:25 PM
  #68  
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Originally Posted by Rob 02
Is this the sound?
Sounds so very nice but not quite what I'm striving for. I'm thinking more along the lines of angles singing of their pure joy as they witness the glory of 1:30 second lap around Mid Ohio.
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Old Feb 8, 2017 | 09:28 PM
  #69  
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Originally Posted by Revolver ZSTi
amazing work man, looking forward for the finish product, i am very glad someone is making this a reality and dont mind sharing it

if your willing to make another set please let me know, id def be willing to send cash your away for a set hahahaha



a year ago me and my buddy tried to attempt doing a 180 degree headers for C5 and C6 but we bailed out due time and us being impatient

here some quick photos of our mock up





https://cimg6.ibsrv.net/gimg/www.cor...7e72e9852d.jpg

https://cimg7.ibsrv.net/gimg/www.cor...ac8e5cd124.jpg

https://cimg3.ibsrv.net/gimg/www.cor...82fef742f6.jpg

You were on the right track there. Those Lego style header mock up plastic bricks are awesome, if I built more than one set of headers every two years I would have some of my own.
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Old Feb 8, 2017 | 09:29 PM
  #70  
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No one makes a 3 1/2" x 2 1/8" oval to 2 3/4" round transition let alone one flat on two sides. So, sheet metal, portaband, 4 1/2" angle grinder and press brake go to work.

Tacked up and ready to weld to the oval mandrel bends that begin the transition from stacked collectors to side by side pipes that will then transition to the X pipe.

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If anyone reading this is understanding how this will happen, I feel for you because your mind might be as twisted as mine. For those that have no idea what is about to happen, good for you. It shall become clear soon.
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Old Feb 9, 2017 | 08:11 AM
  #71  
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Again, all I can say is, WOW!!



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Old Feb 9, 2017 | 08:23 AM
  #72  
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I love everything happening with this project. Cant wait to see and hear the final product. Was going to build a set for my 911 after I swapped in an LS1 but decided to keep it period correct. Keep up the good work.
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Old Feb 10, 2017 | 10:51 PM
  #73  
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A little more progress,

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I was worried about ground clearance with the stacked pipes but all looks to be okay. They lower pipe is level with the seat rail brackets, slightly lower than the floor itself.

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Back to the bench to get the side by side action happening. Beer can bottoms make excellent purge caps.

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I should have this section of the exhaust complete by the end of the weekend and finally be back to square 1
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Old Feb 10, 2017 | 11:15 PM
  #74  
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That is looking really good. Not many people could have figured this out.
Can't imagine a LS engine sound through 'em.
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Old Feb 10, 2017 | 11:31 PM
  #75  
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Keep at it you do nice work and once completed you will be famous
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Old Feb 11, 2017 | 09:17 AM
  #76  
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Originally Posted by v8srfun
Keep at it you do nice work and once completed you will be famous
Even more famous if they are able to be produced
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Old Feb 11, 2017 | 09:27 AM
  #77  
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Originally Posted by SuperTom
Even more famous if they are able to be produced
With v bands any thing is possible
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Old Feb 11, 2017 | 01:23 PM
  #78  
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Just for no reason at all some people are wondering if there might be another way to accomplish this. Well, not this exactly, but something that adds up to the same thing.
What would be required to change the firing order so that each cylinder fires through factory headers in the same order that these spaghetti-tubes accomplish?
I am guessing that it would require ..... a few things....., included custom crank, custom cams, and ..... what else?
Would not be cheap, but it would be less than buying and maintaining most Ferraris.
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Old Feb 11, 2017 | 01:43 PM
  #79  
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You could accomplish it with a crank and cam plus a tune but it would not run smoothly and would lack in power.
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Old Feb 11, 2017 | 05:28 PM
  #80  
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You would need a flat crank.

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They are not as well balanced.
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