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      11-21-2013, 03:56 PM   #1
Matt@AUTOcouture
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ACM | Melbourne Red shop car with headers on the Dyno

After months of having the ESS VT-2 supercharger on the car, we knew there was still more we could get out of this setup. It has been said that the stock headers are high flowing and not restrictive; therefore minimal gains if any would be made with aftermarket headers on a N/A S65. However, this wasn't proven on a supercharged car so we decided to change that. We picked up a set of Schmiedmann Headers to be paired with the full Akrapovic GT4 exhaust. Today's dyno run had put down 548 wheel horsepower number proving a gain of 18 wheel horsepower from the headers.



The baseline run we did a few months ago before the headers put down 530 wheel horsepower.




Here is the comparison of the Schmiedmann Headers(Left) vs Stock(Right)



We installed them with the block in the car.



Full Akra GT4 blued, man we love Titanium!











Best dyno run put down 548 wheel horsepower
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      11-21-2013, 04:05 PM   #2
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Ok cough it up. Where are the videos! Want to hear this beast.
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      11-21-2013, 04:35 PM   #3
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nice work.
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      11-21-2013, 04:44 PM   #4
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Is the car much louder?
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      11-21-2013, 05:14 PM   #5
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AC has in house dyno?
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      11-21-2013, 05:15 PM   #6
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Beast Mode!

Great job guys
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      11-21-2013, 05:19 PM   #7
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We'll be putting together a gopro video of the setup soon.

Much louder? No. The tone slightly changed to a more exotic, throaty nature.

Overall- extremely happy with the product (fit, finish and fitment) and the end result
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      11-21-2013, 06:14 PM   #8
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Quote:
Originally Posted by cprx7 View Post
AC has in house dyno?
Unfortunately, no - the town won't let us have one. Conveniently the next town over has a shop called Pilkington's and they have the dyno. It's a 5 minute drive over! We're gonna be holding a dyno day over there with those guys, they have some cool muscle cars over there too. We'll post up details in the regional section for the dyno day.
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      11-21-2013, 06:33 PM   #9
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Nice gains.. I seriously love how the FIs look on that red devil.
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      11-21-2013, 07:12 PM   #10
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Quote:
Originally Posted by Sal@AUTOcouture View Post
We'll be putting together a gopro video of the setup soon.

Much louder? No. The tone slightly changed to a more exotic, throaty nature.

Overall- extremely happy with the product (fit, finish and fitment) and the end result
I want! How long does the job take and what's involved?
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      11-21-2013, 07:26 PM   #11
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Quote:
Originally Posted by leigh View Post
I want! How long does the job take and what's involved?
Since these were the first we've done there was a slight learning curve. Take into account roughly 20 hours. Subframe needs to be lowered and hands need to be abused

We're expecting a few sets within a week or so
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      11-21-2013, 07:30 PM   #12
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Quote:
Originally Posted by Sal@AUTOcouture View Post
Since these were the first we've done there was a slight learning curve. Take into account roughly 20 hours. Subframe needs to be lowered and hands need to be abused

We're expecting a few sets within a week or so
What is the cost of the headers?
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      11-21-2013, 08:59 PM   #13
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Awesome!
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      11-21-2013, 09:31 PM   #14
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nice
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      11-21-2013, 11:28 PM   #15
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Quote:
Originally Posted by Matt@AUTOcouture View Post
Unfortunately, no - the town won't let us have one. Conveniently the next town over has a shop called Pilkington's and they have the dyno. It's a 5 minute drive over! We're gonna be holding a dyno day over there with those guys, they have some cool muscle cars over there too. We'll post up details in the regional section for the dyno day.
Sounds good I'll be looking out for thread
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      11-22-2013, 01:29 AM   #16
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This is exciting news.
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      11-22-2013, 01:32 AM   #17
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VIDEOS or it didn't happen :P
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      11-22-2013, 09:26 AM   #18
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Quote:
Originally Posted by Sal@AUTOcouture View Post
Since these were the first we've done there was a slight learning curve. Take into account roughly 20 hours. Subframe needs to be lowered and hands need to be abused

We're expecting a few sets within a week or so
Wow was not expecting the subframe to have to be taken down but should have known. If someone was doing rod bearings, you miiiigghhhhht as well do headers haha (jk)

Can't wait to see videos.
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      11-22-2013, 09:48 AM   #19
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Quote:
Originally Posted by leigh View Post
What is the cost of the headers?
Ironing out the details as we speak

Quote:
Originally Posted by chuxdelux View Post
This is exciting news.
Quite

Quote:
Originally Posted by mkPOTO View Post
VIDEOS or it didn't happen :P
LOL...proof soon

Quote:
Originally Posted by W/// View Post
Wow was not expecting the subframe to have to be taken down but should have known. If someone was doing rod bearings, you miiiigghhhhht as well do headers haha (jk)

Can't wait to see videos.
Not a bad idea!!
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      11-22-2013, 11:18 AM   #20
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Quote:
Originally Posted by cprx7 View Post
Sounds good I'll be looking out for thread


Quote:
Originally Posted by W/// View Post
Wow was not expecting the subframe to have to be taken down but should have known. If someone was doing rod bearings, you miiiigghhhhht as well do headers haha (jk)
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      11-22-2013, 11:34 AM   #21
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Sucks its only showing gains with a SC set up.
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      11-22-2013, 11:48 AM   #22
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Quote:
Originally Posted by p-streets View Post
Sucks its only showing gains with a SC set up.
We haven't seen anyone post before/ after on non-supercharged cars. We're willing to offer free dyno for anyone willing to try it out
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