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Old Sep 24, 2009 | 12:35 PM
  #21  
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SG-Motorsport long tube headers!!



Info:
http://sg-motorsport.com/development.html
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Old Sep 24, 2009 | 12:39 PM
  #22  
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Sweet! i have the same exhaust thats on the red one in this pic!!!! $2000 for the headers does it come with the h pipe??
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Old Sep 24, 2009 | 03:47 PM
  #23  
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Originally Posted by GT-Z
Sweet! i have the same exhaust thats on the red one in this pic!!!! $2000 for the headers does it come with the h pipe??
What?
Nismo headers, and the like are all garbage. Alphaworks, Ichinban, and even the Megan racing long tubes have all seen gains. Of course the biggest gains were from SG's longtube headers above.

You still can gain power by adding a test pipe, or hfc to your car.
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Old Sep 24, 2009 | 03:51 PM
  #24  
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Post the gains of said long tubes (Megan, etc). So far all I've read are "I feel a difference" or "my buddy has these and now he beats my car" type posts, never anything meaningful

The NISMO headers are far from garbage. Expensive yes, that I will agree with. However, when paired with the right cam, they actually work quite well. They also fit without incident, and have no short or long term quality issues.
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Old Sep 24, 2009 | 05:00 PM
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Supersprints are $1608 plus shipping. Get on it!
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Old Sep 24, 2009 | 05:27 PM
  #26  
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Originally Posted by Z1 Performance
Post the gains of said long tubes (Megan, etc). So far all I've read are "I feel a difference" or "my buddy has these and now he beats my car" type posts, never anything meaningful

The NISMO headers are far from garbage. Expensive yes, that I will agree with. However, when paired with the right cam, they actually work quite well. They also fit without incident, and have no short or long term quality issues.
So do most headers. I never seen any data to prove the value of Nismo headers....I will admit the same can be said for the Megan Longtubes though.
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Old Sep 24, 2009 | 05:33 PM
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Originally Posted by GT-Z
As in hp#
Not just hp. More like, what are you planning on using your car for. DD, AutoX, Drag, Weekend Car, Drift etc... etc...?
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Old Sep 25, 2009 | 04:28 AM
  #28  
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Originally Posted by KA24DE
So do most headers. I never seen any data to prove the value of Nismo headers....I will admit the same can be said for the Megan Longtubes though.
Check the NA builds section. I forget his screen name, but I know of one using the NISMO headers on his setup, power/torque was essentially the same as my setup currently sits (well, mine has been changed now, I just have not redyno'd/tuned yet). 1cockyZ is using the noral off the shelf DC headers (similar to the NISMO) and they too have worked out well for him. They certainly are not gods gift to headers, but they work reasonably well for sure. There were also dynos that date back a number of years that were done by people just installing the NISMO headers as well. Unfortunately not all the old posts may be here anymore, as the site migration definitely lost some data when it transferred ownership. The thing to remember is no header is going to give monsterous gains until it is paired to a proper set of cams...and at that point the gains sink or swim based on how well that cam/header combo are matched to one another.
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Old Sep 25, 2009 | 07:54 AM
  #29  
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Originally Posted by GT-Z
Anyone INSTALLED THE LONGTUBE HEADERS YET?
I AM WANTING TO BUY SOME, BUT HAVNT FOUND
ANYTHING ON INSTALLING THEM OR HEARD ANYONE WITH THEM.



Thanks mws
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Old Sep 25, 2009 | 08:39 AM
  #30  
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Lol^............Anyway
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Old Sep 25, 2009 | 08:57 AM
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^_^ what part of memphis are you from?
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Old Sep 25, 2009 | 09:45 AM
  #32  
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^ I live in west memphis, Ar like 5 mins from memphis. i c u live in southhaven u bout 20mins from me. my ex lives there.... u go to the gate any
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Old Sep 25, 2009 | 02:56 PM
  #33  
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Nah, i was never really into goin out there much. Me and my friends had this "spot" we would go to and everyone would drift and practice for the events we would hold. Are you familiar with Traction Optional at all?
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Old Sep 25, 2009 | 03:05 PM
  #34  
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Originally Posted by 1cockyZ
Supersprints are $1608 plus shipping. Get on it!
http://www.supersprint.com/USP00nis350Z2.asp

thanks for the info, didnt know about these
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Old Sep 25, 2009 | 05:25 PM
  #35  
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Originally Posted by Z1 Performance
Check the NA builds section. I forget his screen name, but I know of one using the NISMO headers on his setup, power/torque was essentially the same as my setup currently sits (well, mine has been changed now, I just have not redyno'd/tuned yet). 1cockyZ is using the noral off the shelf DC headers (similar to the NISMO) and they too have worked out well for him. They certainly are not gods gift to headers, but they work reasonably well for sure. There were also dynos that date back a number of years that were done by people just installing the NISMO headers as well. Unfortunately not all the old posts may be here anymore, as the site migration definitely lost some data when it transferred ownership. The thing to remember is no header is going to give monsterous gains until it is paired to a proper set of cams...and at that point the gains sink or swim based on how well that cam/header combo are matched to one another.
Rednezz was the one using Nismo headers, and it's hard to say if they helped or hurt him. We do know the DC sports are next to worthless, and gaining almost no real power over stock.

If you want to argue effectiveness of header/cam combo, don't you think the header should be built around the motor, and not just some off the shelf garbage?
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Old Sep 25, 2009 | 05:51 PM
  #36  
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Originally Posted by Z1 Performance
as of now the only long tube header out is the ebay junk. It would take significant reworking to make them worth installing for my money. There are a real long tubes coming from SG Motorsports later this fall. I have no familiarity with those cams so I don't know if the car would benefit from them coupled with long tubes or not.

What ecu are you running?

In the future, you should try posting all this stuff in your first post...it really makes things alot easier for people to understand, and lets people take you more seriously. List your mods, your goals, your budget, etc.
In what which way are they "junk" is it the fitment? No I've installed 2 sets one for me and one for my friend and they install without even having to remove the a/c or steering knuckle. Installation takes about 5 hours if you know what you are doing. With 0 modifications and 0 hits with any hammers of any type

Do they break at the welds?
No at least not after 2 years and 1 new York winter they don't.. because thats how long i had mine on the car.

Are they overpriced? No they cost around 200-250 dollars!! thats almost as much as regular test pipes

Do they yield little to know performance gain?
You wouldn't know.. and i don't know the exact performance gain myself.. Probably everybody who buys these headers is too much of a cheap *** to get a before and after dyno run to see what the actual gains are .All i know is that my Z was considerably faster than a very similarly modded Z without these headers

So again how are they junk? lol

Originally Posted by GT-Z
Anyone INSTALLED THE LONGTUBE HEADERS YET?
I AM WANTING TO BUY SOME, BUT HAVNT FOUND
ANYTHING ON INSTALLING THEM OR HEARD ANYONE WITH THEM.



Thanks mws
Yes I've installed 2 sets of these on 2 different 350zs.. Installation of these headers is the same procedure as regular headers.. if not easier..I did not have to take off the a/c or steering knuckles to get these onto my car.. just a bunch of coolant lines

Originally Posted by GT-Z
Sweet! i have the same exhaust thats on the red one in this pic!!!! $2000 for the headers does it come with the h pipe??
Can you say overpriced? what are you paying for here? if you want performance put that 2000$ into a supercharger or turbo kit

Originally Posted by Z1 Performance
Post the gains of said long tubes (Megan, etc). So far all I've read are "I feel a difference" or "my buddy has these and now he beats my car" type posts, never anything meaningful

The NISMO headers are far from garbage. Expensive yes, that I will agree with. However, when paired with the right cam, they actually work quite well. They also fit without incident, and have no short or long term quality issues.
I wish somebody would actually do a before and after dyno of the long tubes.. i had them and personally it was the most noticable difference of any of the n/a mods i have ever done.. the longtube headers also have no short term of long term quality issues either.. its all about personal preference and budget

Last edited by BonesZ33; Sep 25, 2009 at 05:53 PM.
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Old Sep 25, 2009 | 06:56 PM
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Originally Posted by BonesZ33
I wish somebody would actually do a before and after dyno of the long tubes.. i had them and personally it was the most noticable difference of any of the n/a mods i have ever done.. the longtube headers also have no short term of long term quality issues either.. its all about personal preference and budget
Question..

Did you have test pipes before installing megans long tube header?
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Old Sep 25, 2009 | 07:02 PM
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Originally Posted by danieluser
Question..

Did you have test pipes before installing megans long tube header?
No the first car

Yes the second car.. non resognated
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Old Sep 25, 2009 | 07:17 PM
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I will be putting this "do the megan longtubes work?" question to bed shortly. It will be compared to dc headers and aps test pipes. I definately killed the revup vs nonrevup lower plenum argument. I still want those supersprints
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Old Sep 26, 2009 | 06:15 AM
  #40  
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Originally Posted by KA24DE
Rednezz was the one using Nismo headers, and it's hard to say if they helped or hurt him. We do know the DC sports are next to worthless, and gaining almost no real power over stock.

If you want to argue effectiveness of header/cam combo, don't you think the header should be built around the motor, and not just some off the shelf garbage?
I would say that is a matter of opinion. Before I stumbled across the set of Crawfords my car currently runs, I too was going to use the DC Sports units. They had been sent to my machinist, as the set was donated to me free of charge at the time. I was told that based on the primary diameters and length relative to stock they would have worked quite nicely with my intended cam selection (by that point we had decided which of the group I had sent up for evaluation we were going to use). 1cockyz is using them in his setup as well, and by all accounts, his car is performing on a similar level to mine as well.

In an ideal world yes a header should be designed around the cam, and other variables. However, this is not always possible for the average Joe to do. There never ever is an ideal (with this car in particular since space is at such a premium) - there is only a series of compromises that results in the lesser of all evils. While I have no doubt that a proper set of long tubes will always benefit the right engine combo, I think it's going to far on the limb to say the shorty designs of NISMO and DC are worthless. While their effectiveness on a stock cam engine is certainly questionable from a cost/install/benefit ratio, there is no doubt that as you alter the aspects of the engine that can realize benefits from aftermarket vs stock manifolds, their worth begins to become more apparant.
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