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Headers added after supercharger install

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Old Jan 10, 2017 | 11:18 AM
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Default Headers added after supercharger install

I had an A&A V3-Si installed a few months back. I'm planning to install a set of 1-7/8 headers in the next couple of weeks. I'm also planning to go to 3.8" pulley instead of the 4" one that I have now. My questions is whether adding the headers is going to have some detrimental impact on performance or reliability before I switch pulleys and get a retune.
Thanks...
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Old Jan 10, 2017 | 04:42 PM
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Originally Posted by 2scary
I had an A&A V3-Si installed a few months back. I'm planning to install a set of 1-7/8 headers in the next couple of weeks. I'm also planning to go to 3.8" pulley instead of the 4" one that I have now. My questions is whether adding the headers is going to have some detrimental impact on performance or reliability before I switch pulleys and get a retune.
Thanks...
Go to the 3.6 pulley and the tune will be good until the pulley is added to the car.
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Old Jan 10, 2017 | 04:56 PM
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I'm only putting the headers on now. The new pulley and new tune will be in a month or so. You say it won't be an issue?
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Old Jan 10, 2017 | 08:37 PM
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Originally Posted by 2scary
I'm only putting the headers on now. The new pulley and new tune will be in a month or so. You say it won't be an issue?
Not at all.
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Old Jan 11, 2017 | 09:31 AM
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had a similar set up on my 14 Stingray, did the ECS Supercharger system + tune, woke up the car big time if I recall 552 RWHP .. later I added ARH 1 7/8th headers the sound was incredible, but adding headers resulted in the boost being turned down a tad with the retune, wasn't a fan, car felt stronger before the headers were installed. Just an opinion.
doug
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Old Jan 11, 2017 | 04:05 PM
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Originally Posted by dougatl
had a similar set up on my 14 Stingray, did the ECS Supercharger system + tune, woke up the car big time if I recall 552 RWHP .. later I added ARH 1 7/8th headers the sound was incredible, but adding headers resulted in the boost being turned down a tad with the retune, wasn't a fan, car felt stronger before the headers were installed. Just an opinion.
doug
That doesn't make sense? When you take away back pressure on the exhaust, measured boost will reduce but the air flow through the blower should be exactly the same...and generally you can get away with a few more degrees of timing when you do this too.

Not that I am supporting your header choice , but either way it should have picked up both HP and TQ unless they didn't spend any time on the tune.
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Old Jan 11, 2017 | 04:47 PM
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Originally Posted by Anthony @ LGMotorsports
That doesn't make sense? When you take away back pressure on the exhaust, measured boost will reduce but the air flow through the blower should be exactly the same...and generally you can get away with a few more degrees of timing when you do this too.

Not that I am supporting your header choice , but either way it should have picked up both HP and TQ unless they didn't spend any time on the tune.
100% I just love all these so called tuner's that say they can do it and it end's up worse than it was before. Robert
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Old Jan 12, 2017 | 06:47 AM
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Originally Posted by dougatl
had a similar set up on my 14 Stingray, did the ECS Supercharger system + tune, woke up the car big time if I recall 552 RWHP .. later I added ARH 1 7/8th headers the sound was incredible, but adding headers resulted in the boost being turned down a tad with the retune, wasn't a fan, car felt stronger before the headers were installed. Just an opinion.
doug
That does not sound right. Who tuned the car after the headers???
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Old Jan 12, 2017 | 08:47 AM
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Go with the 3.6 pulley, wish I had.
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Old Jan 12, 2017 | 02:19 PM
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I was planning on the 3.6 pulley, but was told I need meth.

Are both the front and rear O2 extensions a flattened oval shape? I received some from Mid America that are almost triangular.
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Old Jan 12, 2017 | 06:04 PM
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Originally Posted by 2scary
I was planning on the 3.6 pulley, but was told I need meth.

Are both the front and rear O2 extensions a flattened oval shape? I received some from Mid America that are almost triangular.
Extensions for the C7 are flat front and back. Only difference is color and the locating pin inside.
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Old Jan 12, 2017 | 06:47 PM
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Thanks so much! Don't suppose LG has 24" for the rears?
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Old Jan 12, 2017 | 06:49 PM
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Originally Posted by 2scary
Thanks so much! Don't suppose LG has 24" for the rears?
Actually, I think so. We just got rears in a few weeks ago. Have to check length but that sounds about right.
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