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Camaro V8 LS3 / L99 Engine, Exhaust, and Bolt-Ons Bolt-Ons | Intakes | Exhaust

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Old 07-29-2014, 02:50 PM   #1
SteveDoten@ARH

 
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ARH Shortie Headers Pick Up Huge Gains For Turbo Builds

Jeremy at Power Fab Automotive recently installed our ARH Shorty Headers on a customer’s twin turbo Gen 5 Camaro. Jeremy’s standard TT kit was designed using factory cast iron manifolds, but Jeremy decided to put ARH Shorties to the test for a back to back comparison. While it would seem logical that the headers would increase power by spooling the turbo more efficiently, Jeremy was shocked with the performance results. Without any other changes, the Gen 5 picked up +38RWHP / +74RWTQ at peak! Gains throughout the RPM range were even greater where HP increased by 70 between 4000-5000. There was absolutely no change to the tune in back to back testing. As a direct replacement for the manifolds, the swap was quick and easy. The results were no surprise to the ARH team. The best part is that ARH Shorties are made using the highest quality 304 S/S allowing them to withstand high boost applications. They are also 50 State Legal.


PowerFab’s Build Info:
2012 Camaro SS
Stock LS3 w/ cam only
Stock TR6060 w/ Monster Clutch LT1 triple disc clutch
Squash Performance twin pump fuel basket w/ dual E85 pumps
Brown & Miller Racing Solutions fuel plumbing/fittings
PowerFab Automotive 6266 Twin Turbo Package
American Racing 5th Gen Camaro Shorty Headers
E85 fuel @ 10psi of boost




ARH Shorty Headers VS Stock Manifolds:

ARH Shorty Headers (Isolator plugs and hardware included with purchase)



Name:  2010+CAMARO V8 SHORTY HEADERS copy.jpg
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Size:  77.0 KB


Stock Manifolds
Name:  Camaro manifol.jpg
Views: 600
Size:  196.6 KB



Dyno Results:

RunFile_002(Blue): Stock Manifolds
RunFile_008(Red): ARH Shorty Headers

+38HP/+74TQ! NO RETUNING OR OTHER CHANGES!



Name:  TT_Camaro_Dyno_Sheet.jpg
Views: 610
Size:  159.5 KB




Quote from Jeremy- “With the gains we’ve seen using the ARH Shorties vs. cast factory manifolds, we'll easily take the 1000RWHP stock bottom end record. It’s just a matter of time!”

- Jeremy Cozad
PowerFab Automotive




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Old 07-29-2014, 08:32 PM   #2
Lio Martinez
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How much for a set of those?

And will that set fit wit the Turbonetics kit for LS3

I currently have JBA catless mid pipes and stock manifold
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Old 07-29-2014, 08:35 PM   #3
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I love those torque increase figures

Thank you for bringing this to the table.

Man I miss turbo'ing..
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Old 07-29-2014, 11:32 PM   #4
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I've always thought that the exhaust before the turbo's doesn't matter that much. Interesting.
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Old 07-29-2014, 11:41 PM   #5
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Size of primaries?
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Old 07-30-2014, 12:17 AM   #6
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Quote:
Originally Posted by VADER SS L99 View Post
I've always thought that the exhaust before the turbo's doesn't matter that much. Interesting.
Interesting and good read from the archives: http://m.honda-tech.com/showthread.p...312&styleid=18
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Old 08-01-2014, 05:37 PM   #7
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Quote:
Originally Posted by Lio Martinez View Post
How much for a set of those?

And will that set fit wit the Turbonetics kit for LS3

I currently have JBA catless mid pipes and stock manifold
Lio, they are $1155

Quote:
Originally Posted by Camaro Dude View Post
I love those torque increase figures

Thank you for bringing this to the table.

Man I miss turbo'ing..
It is awesome

Quote:
Originally Posted by VADER SS L99 View Post
I've always thought that the exhaust before the turbo's doesn't matter that much. Interesting.
Quote:
Originally Posted by Chevrolade View Post
Size of primaries?
1 3/4"

Quote:
Originally Posted by Camaro Dude View Post
Interesting and good read from the archives: http://m.honda-tech.com/showthread.p...312&styleid=18
Thanks for the good words!!
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Old 08-01-2014, 05:42 PM   #8
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Will they fit the Turbonetics kit?
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Old 08-01-2014, 05:46 PM   #9
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I can vouch for this, while we didn't do a side by side comparison they easily supported Bull's 1280 rwhp in his 5th Gen SNL Performance built. The car made over 1,000 rwhp on 20 psi and pump gas/meth.

These headers are a fantastic addition to those doing turbo kits, great job ARH!
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Old 08-01-2014, 06:02 PM   #10
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Too bad they were in stock for the baller twin charged zl1. Had to go with another brand.
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Old 08-04-2014, 07:25 PM   #11
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Too bad they were in stock for the baller twin charged zl1. Had to go with another brand.
Nick, We tried our best to get them completed, but couldn't get them done in the timeframe needed.
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Old 08-04-2014, 07:27 PM   #12
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Quote:
Originally Posted by Lio Martinez View Post
Will they fit the Turbonetics kit?
Yes, the Turbonetics kit uses stock manifolds.

Quote:
Originally Posted by Steve@SNL/Monster Clutch View Post
I can vouch for this, while we didn't do a side by side comparison they easily supported Bull's 1280 rwhp in his 5th Gen SNL Performance built. The car made over 1,000 rwhp on 20 psi and pump gas/meth.

These headers are a fantastic addition to those doing turbo kits, great job ARH!
Thanks Steve
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Old 08-05-2014, 12:20 AM   #13
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Quote:
Originally Posted by Lio Martinez View Post
How much for a set of those?

And will that set fit wit the Turbonetics kit for LS3

I currently have JBA catless mid pipes and stock manifold
These are direct replacements for stock manifolds, so as long as whatever turbo kit you're running is currently bolted to stock manifolds they will bolt right in place without any issue.
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Old 08-05-2014, 12:32 AM   #14
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That's awesome gains but I'm not buying the no retune needed. anything that is adding power is going to need to be accounted for
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Old 08-06-2014, 07:31 PM   #15
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Not buying it?

Lol. I bet if there was the retuned numbers you'd claim half was from the tune.
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Old 08-06-2014, 10:40 PM   #16
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what kind of gains could be expected compared to regular long tube headers....say in the event that these were installed with the intent of going twin turbo in the future?
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Old 08-18-2014, 06:23 PM   #17
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Quote:
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That's awesome gains but I'm not buying the no retune needed. anything that is adding power is going to need to be accounted for
With all do respect, these are real gains.

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Not buying it?

Lol. I bet if there was the retuned numbers you'd claim half was from the tune.
Not the case.

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what kind of gains could be expected compared to regular long tube headers....say in the event that these were installed with the intent of going twin turbo in the future?
14whp without tuning
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Old 10-17-2014, 10:02 AM   #18
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Hey Steve...I've been trying to find out the wall thickness of the ARH shorties... Can you help me out...? Oh....and will they clear the LSX 6 bolt block and heads?

Dave
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Old 10-17-2014, 12:42 PM   #19
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Yes they clear 6 bolt heads.

No you don't have to tune every time you add power.
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Old 10-17-2014, 03:19 PM   #20
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Quote:
Originally Posted by LIL QIK View Post
Hey Steve...I've been trying to find out the wall thickness of the ARH shorties... Can you help me out...? Oh....and will they clear the LSX 6 bolt block and heads?

Dave
.065" is the wall thickness, Please call or email if there is anything we can help you with.

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Yes they clear 6 bolt heads.

No you don't have to tune every time you add power.
Thanks Nick, hope all is well in the Valley of the Sun.
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Old 10-19-2014, 06:33 PM   #21
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good timing for this thread.
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