Crushed pipe section

ender2664 · 12-09-2016, 09:16 AM

I could have sworn I read on here that the crushed pipe section doesn't have any negative effects on preformance but also just read on a product description that horsepower is picked up if I buy a anti-crimp section...are they full of it? Does getting rid of the crimp affect the exhaust sound in a noticeable way?

*Mr. Wyndham* · 12-09-2016, 09:47 AM

http://www.camaro6.com/forums/showthread.php?t=431040

This is probably what you remember from the site side of things. Regarding picking up HP...I'd be skeptical of any real benefit without before and after dyno charts...

I don't think anyone on the site has any verifiable gains by just removing the crimped section. If they do, and I'm mistaken, I'd love to read it.

avalonandl · 12-09-2016, 09:48 AM

Go to Mishimoto exhaust thread. They did a test and no effect. It is such a short section of pipe. We had a similar thing on the 2005-6 GTO - a crimped section- and before after testing replacing it showed no effect. Its probably for clearenace for rear axle cradle.

ender2664 · 12-09-2016, 10:00 AM

Thank you guys

Ecchi667 · 12-09-2016, 10:17 AM

Quote:

Originally Posted by ender2664

Thank you guys

I would suspect it *may* cause restriction when going forced induction, but at that point the entire exhaust system is probably getting restrictive. Would be interesting to see somebody test the theory!

*Mr. Wyndham* · 12-09-2016, 10:20 AM

Quote:

Originally Posted by Ecchi667

I would suspect it *may* cause restriction when going forced induction, but at that point the entire exhaust system is probably getting restrictive. Would be interesting to see somebody test the theory!

Its still there in the ZL1.

Mr. Grumpy · 12-09-2016, 10:23 AM

Maybe someone with a MY 17 ZL1 can chime in. It would be interesting to see if they have the crush pipe section as well.

ender2664 · 12-09-2016, 10:28 AM

I do not plan on doing anything substantial to the car...already has a lot of power for the street; which is pretty much the only place she will be.

oldman · 12-09-2016, 11:03 AM

Quote:

Originally Posted by Mr. Wyndham

Its still there in the ZL1.

Somebody posted the ZL1 has a 3" exhaust? Even with a crimp, that is a lot more flow. I pretty sure the header is the same on the ZL1 and SS, also the exhaust manifold is the same LT1 to LT4 on the Vette. I'm going by pictures. The ID of the SS header is 2.1" and has a lot more energy that the 2 and 3/4 crimped section at about 1/2 the flow area as a circle.

ender2664 · 12-09-2016, 11:15 AM

Quote:

Originally Posted by oldman

Somebody posted the ZL1 has a 3" exhaust? Even with a crimp, that is a lot more flow. I pretty sure the header is the same on the ZL1 and SS, also the exhaust manifold is the same LT1 to LT4 on the Vette. I'm going by pictures. The ID of the SS header is 2.1" and has a lot more energy that the 2 and 3/4 crimped section at about 1/2 the flow area as a circle.

If it has 3inch exhaust it is either going to be crazy loud or have pretty intense resonators/muffler. My nonmuffler 2.75 is quieter than the 3inch gibson. But the gibson also got rid of the secondary cats which might be part of the sound discrepancy.

MuhThugga · 12-09-2016, 11:32 AM

I would not worry about that section of pipe.

The exhaust is really done assisting with power at that point.

ender2664 · 12-09-2016, 12:26 PM

Quote:

Originally Posted by MuhThugga

I would not worry about that section of pipe.

The exhaust is really done assisting with power at that point.

I am putting my old system back on and saw that piece for $100ish and it says it drops 10lbs and adds 10hp so I figured why not since the system was already off the car. But if it isn't going to do anything I'll just keep it the way it is.

*Mr. Wyndham* · 12-09-2016, 01:11 PM

Quote:

Originally Posted by ender2664

I am putting my old system back on and saw that piece for $100ish and it says it drops 10lbs and adds 10hp so I figured why not since the system was already off the car. But if it isn't going to do anything I'll just keep it the way it is.

Interesting.....It certainly won't remove 10 lbs, either!

If you replace it with another (non-crimped pipe)...you're still replacing a small section of pipe with another, equal section of pipe...and thus weight. Crimping doesn't add material.

Oh, sales tactics...

EDIT: I guess the product might save weight...if it was made of tin-foil....

oldman · 12-09-2016, 03:22 PM

Quote:

Originally Posted by Mr. Wyndham

Interesting.....It certainly won't remove 10 lbs, either!

If you replace it with another (non-crimped pipe)...you're still replacing a small section of pipe with another, equal section of pipe...and thus weight. Crimping doesn't add material.

Oh, sales tactics...

EDIT: I guess the product might save weight...if it was made of tin-foil....

I have not modded that portion of my exhaust yet (shear laziness). I would just heat, slide hammer, and braze the holes... basically free in less than hour.

12-09-2016, 09:16 AM	#1
ender2664 Account Suspended Drives: 2016 2SS Join Date: Mar 2014 Location: Palm Desert Posts: 2,353	Crushed pipe section I could have sworn I read on here that the crushed pipe section doesn't have any negative effects on preformance but also just read on a product description that horsepower is picked up if I buy a anti-crimp section...are they full of it? Does getting rid of the crimp affect the exhaust sound in a noticeable way?

12-09-2016, 09:47 AM	#2
Mr. Wyndham I used to be Dragoneye... Drives: 2018 ZL1 1LE Join Date: Jan 2007 Location: Buffalo, NY Posts: 31,876 View My Garage	http://www.camaro6.com/forums/showthread.php?t=431040 This is probably what you remember from the site side of things. Regarding picking up HP...I'd be skeptical of any real benefit without before and after dyno charts... I don't think anyone on the site has any verifiable gains by just removing the crimped section. If they do, and I'm mistaken, I'd love to read it. __________________ *"Keep the faith."* - Fbodfather

12-09-2016, 10:23 AM	#7
Mr. Grumpy Car Enthusiast Drives: 2017 Camaro SS FIFTY Join Date: Jul 2016 Location: Naperville, IL Posts: 163	Maybe someone with a MY 17 ZL1 can chime in. It would be interesting to see if they have the crush pipe section as well. __________________ 2017 SS Camaro FIFTY 6MT, Nav, NPP, Black Bowties, Mishimoto OCC, Skip Shift Eliminator, GM Footwell Lighting, NGM Splash Guards, GM Blackout Tail Lights (SOLD)

12-09-2016, 09:48 AM	#3
avalonandl Drives: 2019 ZL-1 Join Date: Feb 2009 Location: Troy, MI & Naples, FL Posts: 2,019	Go to Mishimoto exhaust thread. They did a test and no effect. It is such a short section of pipe. We had a similar thing on the 2005-6 GTO - a crimped section- and before after testing replacing it showed no effect. Its probably for clearenace for rear axle cradle.

12-09-2016, 10:00 AM	#4
ender2664 Account Suspended Drives: 2016 2SS Join Date: Mar 2014 Location: Palm Desert Posts: 2,353	Thank you guys

12-09-2016, 10:28 AM	#8
ender2664 Account Suspended Drives: 2016 2SS Join Date: Mar 2014 Location: Palm Desert Posts: 2,353	I do not plan on doing anything substantial to the car...already has a lot of power for the street; which is pretty much the only place she will be.

12-09-2016, 11:32 AM	#11
MuhThugga Poppycock Drives: Pontiac GTO Join Date: Dec 2013 Location: Wilmington, De Posts: 116	I would not worry about that section of pipe. The exhaust is really done assisting with power at that point.

User Name		Remember Me?
Password