Headers...
New Member
Joined: Feb 2003
Posts: 2,237
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From: Nashville, TN
They look like everything else that has come out... they will not gain any power worthwhile for the amount of work needed to install a set of headers in a Z33.
Wait for Crawford Z Performances Headers.... brought to you buy Dougrace Zs... It'll be worth it... Trust me!
Wait for Crawford Z Performances Headers.... brought to you buy Dougrace Zs... It'll be worth it... Trust me!
Charter Member #55
Joined: May 2002
Posts: 890
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From: Austin, TX
Evil,
Why do you say that all other headers produce no gains? Have you dyno'ed these headers? I am not saying you are wrong, just that it would help if you would provide some data to explain your point. I don't remember reading about anyone that has dyno'ed any other headers other than Doug's. If you do have some other info please do start another thread and let everyone know about it.
VQ/JDM,
They look very similar to the Veilside and Top Secret headers.
JD
Why do you say that all other headers produce no gains? Have you dyno'ed these headers? I am not saying you are wrong, just that it would help if you would provide some data to explain your point. I don't remember reading about anyone that has dyno'ed any other headers other than Doug's. If you do have some other info please do start another thread and let everyone know about it.
VQ/JDM,
They look very similar to the Veilside and Top Secret headers.
JD
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Joined: Nov 2002
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From: NOR - CAL
It has been my experience that "shorties" which these appear to be provide very minimal gains, however they let your exhaust breath better.
It all depends on the stock manifold in place already.
As an example, my 2001 and 2002 LS1 had hi flow manifolds and cats too *stock*
Replacing them with shorties resulted in zero gains at the track and Dyno despite the claims of the manafactur of 8-10 RWHP!
In California anything other than shorties will not pass SMOG either.
It is clear that the stock cats on the Z are power robbers, any data on the flow of the stock manifolds yet?
(I asked this a couple months ago because headers are on my want list but didn''t get any info.)
They look nice though.
It all depends on the stock manifold in place already.
As an example, my 2001 and 2002 LS1 had hi flow manifolds and cats too *stock*
Replacing them with shorties resulted in zero gains at the track and Dyno despite the claims of the manafactur of 8-10 RWHP!
In California anything other than shorties will not pass SMOG either.
It is clear that the stock cats on the Z are power robbers, any data on the flow of the stock manifolds yet?
(I asked this a couple months ago because headers are on my want list but didn''t get any info.)
They look nice though.
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Vendor - Former Vendor
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From: NY
This is my first set hand made. (of course done by a professional header factory) The flange is all done by CNC. I have not test fit them nor did a dyno. Once it is ready to release to sale, I 'll let everone know. I would suggest people, before install header. Install mid pipe and catback first. Or else it won't make alot of difference. The whole point is, let it flow... BTW I'm working on a cool item.
There is a button install in your car. Once you rev up above 2000 RPM and press the button. Your rear exhaust will spid fire. NOw 350Z has Dual exhaust. Right now I only have a kit for one exhaust. Working on dual ones. Man!!! can you imagine 350Z shoot out dual fire.... You can do this while you are driving too...
There is a button install in your car. Once you rev up above 2000 RPM and press the button. Your rear exhaust will spid fire. NOw 350Z has Dual exhaust. Right now I only have a kit for one exhaust. Working on dual ones. Man!!! can you imagine 350Z shoot out dual fire.... You can do this while you are driving too...
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Joined: Aug 2002
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From: Los Angeles
Originally posted by JDMZ33
This is my first set hand made. (of course done by a professional header factory) The flange is all done by CNC. I have not test fit them nor did a dyno. Once it is ready to release to sale, I 'll let everone know. I would suggest people, before install header. Install mid pipe and catback first. Or else it won't make alot of difference. The whole point is, let it flow... BTW I'm working on a cool item.
There is a button install in your car. Once you rev up above 2000 RPM and press the button. Your rear exhaust will spid fire. NOw 350Z has Dual exhaust. Right now I only have a kit for one exhaust. Working on dual ones. Man!!! can you imagine 350Z shoot out dual fire.... You can do this while you are driving too...
This is my first set hand made. (of course done by a professional header factory) The flange is all done by CNC. I have not test fit them nor did a dyno. Once it is ready to release to sale, I 'll let everone know. I would suggest people, before install header. Install mid pipe and catback first. Or else it won't make alot of difference. The whole point is, let it flow... BTW I'm working on a cool item.
There is a button install in your car. Once you rev up above 2000 RPM and press the button. Your rear exhaust will spid fire. NOw 350Z has Dual exhaust. Right now I only have a kit for one exhaust. Working on dual ones. Man!!! can you imagine 350Z shoot out dual fire.... You can do this while you are driving too...
Originally posted by dwnshift
We have just recieved our new updated (final production) NISMO headers for the Z. We will probably run them at some point this weekend vs the old ones.
We have just recieved our new updated (final production) NISMO headers for the Z. We will probably run them at some point this weekend vs the old ones.
Did you ever dyno the first set, or are you going to dyno the second set to see the difference.
Later
Aceman
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Joined: Sep 2002
Posts: 575
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From: Atlanta
Originally posted by Evil350z
They look like everything else that has come out... they will not gain any power worthwhile for the amount of work needed to install a set of headers in a Z33.
Wait for Crawford Z Performances Headers.... brought to you buy Dougrace Zs... It'll be worth it... Trust me!
They look like everything else that has come out... they will not gain any power worthwhile for the amount of work needed to install a set of headers in a Z33.
Wait for Crawford Z Performances Headers.... brought to you buy Dougrace Zs... It'll be worth it... Trust me!
Does Crawford have a website where I can get some info on these headers? I downloaded the Movie file off this web site and the sound clips sounded awesome!
).
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Joined: Jan 2003
Posts: 146
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From: Houston
Originally posted by JDMZ33
This is my first set hand made. (of course done by a professional header factory) The flange is all done by CNC. I have not test fit them nor did a dyno. Once it is ready to release to sale, I 'll let everone know. I would suggest people, before install header. Install mid pipe and catback first. Or else it won't make alot of difference. The whole point is, let it flow... BTW I'm working on a cool item.
There is a button install in your car. Once you rev up above 2000 RPM and press the button. Your rear exhaust will spid fire. NOw 350Z has Dual exhaust. Right now I only have a kit for one exhaust. Working on dual ones. Man!!! can you imagine 350Z shoot out dual fire.... You can do this while you are driving too...
This is my first set hand made. (of course done by a professional header factory) The flange is all done by CNC. I have not test fit them nor did a dyno. Once it is ready to release to sale, I 'll let everone know. I would suggest people, before install header. Install mid pipe and catback first. Or else it won't make alot of difference. The whole point is, let it flow... BTW I'm working on a cool item.
There is a button install in your car. Once you rev up above 2000 RPM and press the button. Your rear exhaust will spid fire. NOw 350Z has Dual exhaust. Right now I only have a kit for one exhaust. Working on dual ones. Man!!! can you imagine 350Z shoot out dual fire.... You can do this while you are driving too...
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