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Old Mar 28, 2005 | 05:35 PM
  #16  
yesevo's Avatar
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The neck down sucks, that's for sure
how much whp loss are we looking at?

Last edited by yesevo; Mar 29, 2005 at 06:53 PM.
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Old Mar 28, 2005 | 05:36 PM
  #17  
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This is getting a little OT, but I don't think the outsourcing of manufacturing can stopped.

Remember 'buy american' of the 1980's? It did nothing to stop Japan's emergence as a manufacturing powerhouse. With Japan's growth and influence in the US market, they would beging building factorys and plants in the United States, creating jobs.

But that's Japan.

China is a much different story. A good amount of Japanese manufacturers adhere to quality standards like ISO, but China laughs at those in favor of producing quantity instead of quality. They don't play fair. (The fact that in February, when sanctions were lifted from china textile imports, US ports saw over a 1100% increase in textiles from them)

I'll buy Japanese, but I wont buy Chinese. A lot of Japanese parts manufacturers make their crap in China, but won't disclose it...so i'm very picky with the parts I put on my car.

China probably can't be stopped, as long as people keep looking for 'lowest price' with the current 'ebay mentality' that US consumers have.
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Old Mar 28, 2005 | 05:41 PM
  #18  
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Yeah how much power loss are we talking about here? Im curious to know since my car had put down good numbers on the dyno with the HKS Hi-power. And is there a dyno pull between the two to show the loss in power???

Last edited by EVIL_EVO_VIII; Mar 28, 2005 at 05:48 PM.
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Old Mar 28, 2005 | 05:43 PM
  #19  
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OK so nobody can answer my question...
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Old Mar 28, 2005 | 05:50 PM
  #20  
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Originally Posted by Kbp2025
Sorry this question might be stupid, but that's how you learn...What exactly does neck down mean, and does the RS-R have it?(please say no, I already have it on my evo)
Neckdown is when piping reduces in diameter...for example, an exhaust would be 3", but it would neck down to 2.65" (or whatever diameter the stock cat is). Usually a neckdown is right before the piping connects to another piece....IE downpipe necks down right before it meets the cat, or exhaust necks down right before it meets the cat. I have no idea if your RSR has it. You can usually tell just by looking at the said piece.
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Old Mar 28, 2005 | 05:52 PM
  #21  
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From: 2003 Evo VIII - Silver
Originally Posted by EVIL_EVO_VIII
Yeah how much power loss are we talking about here? Im curious to know since my car had put down good numbers on the dyno with the HKS Hi-power. And is there a dyno pull between the two to show the loss in power???
I have not tested it yet. On a particular car, you may or may not notice the difference. However - as a group you can see the average is 5 - 8 whp less with the necked down exhuast vs. a full 3" exhuast. The freer flowing and less bends and restrictive the more power you can make. If you have a necked down exhuast (meaning it necks down from a full 3" exhuast tube to a 2.4 " at the rear cat ) that creates turbulence and back pressure in the system. A staight exhuast is the highest flow. These marketing companies are more interested in the shape of the exhuast tip than in the dyno numbers.

Last edited by DynoFlash; Mar 28, 2005 at 05:54 PM.
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Old Mar 28, 2005 | 05:53 PM
  #22  
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Al,
I think you have made the right choice in your exhaust, I cannot believe you even posted a picture of that POS neck down, when you have the ultimate secret weapon on your car. Is it that you are trying to prevent everyone from getting the free flow you get from the BR exhaust?

Dave did a test years ago on the dyno of a talon with a resonator which was 2.5 inches and the car would make no more than 280hp if I remember correctly. Once he removed the restriction I believe said car put out 400+hp This was back in the 20g days.

Ask Dave, it's a blast from the past, there is a reason his exhaust is the way it is.

Sean
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Old Mar 28, 2005 | 05:53 PM
  #23  
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Thanks BSE8, I gotta learn some time... Nah mine is 3 all the way.
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Old Mar 28, 2005 | 06:01 PM
  #24  
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kbp2025 I also have 3" RSR GTII on my car unfortunately it does have the neck down before the cat...it looks good and sounds good so i have no problem with it....
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Old Mar 28, 2005 | 06:29 PM
  #25  
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Originally Posted by davidbuschur
The neck down sucks, that's for sure. Typical catback exhaust. Weighs 12 pounds and costs how much Al? Ours is 16 pounds, no reducer in it and is only $450. Hell our exhaust has already made 667 whp on your car, isn't that good enough

David Buschur
www.buschurracing.com
As anyone who has met Al in person can attest, I think he can loose the same 4 lbs off his body for a lot less money then buying a Ti exhaust

Don't get upset Al, this is from one fat *** to another Heck, I loose 4 lbs when I take a good dump

Keith
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Old Mar 28, 2005 | 07:26 PM
  #26  
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al you already have probably the best turbo back on the market for the evo. why would you need a ti anyways?
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Old Mar 28, 2005 | 07:29 PM
  #27  
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Dont go magnaflow, go GREDDY TI TITANIUM EXHAUST. Thats what i have.
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Old Mar 28, 2005 | 07:31 PM
  #28  
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From: driving the 10 second beast in ohio or running lightmods.net
matt can weld titanium at slickmotorsports without a problem ....infact we may make my intercooler piping out of it for fun even though the latest aluminum setup was really light enough
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Old Mar 28, 2005 | 07:32 PM
  #29  
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From: Lake Mary,FL
Originally Posted by DynoFlash
I have not tested it yet. On a particular car, you may or may not notice the difference. However - as a group you can see the average is 5 - 8 whp less with the necked down exhuast vs. a full 3" exhuast. The freer flowing and less bends and restrictive the more power you can make. If you have a necked down exhuast (meaning it necks down from a full 3" exhuast tube to a 2.4 " at the rear cat ) that creates turbulence and back pressure in the system. A staight exhuast is the highest flow. These marketing companies are more interested in the shape of the exhuast tip than in the dyno numbers.
Well so far my car is running good and i have dyno sheet to show it when i made 285AWHP and 300AWTQ on a mustang dyno on pump gas with a UR test pipe and flash. I would like to see you or David Bushur put a car with a no neck down and a neck down on a dyno to show the power loss and how much power is lost.
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Old Mar 28, 2005 | 07:40 PM
  #30  
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So I know you have an effective neck down by using the stock cat, but what about the Buschur SCCA catback? If used with a 3" cat will there be a neckdown in the flange on the buschur piece?
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