Fenris Ulf

I looked at the passenger header again Barry and noticed you can swap any two adjacent primary tubes as they feed into the collector to maintain proper scavenging.

Gary Z

The question about phasing makes no sense to me. Isn't the reason for equal length tubes to ensure proper phasing? The collector is symmetrical. How the tubes enter the collector seems to me to be irrelevant. What am I missing? And yes, the headers are beautiful.

<small>[ March 06, 2003, 04:11 PM: Message edited by: Gary Z ]</small>

Hellion

WOW <img border="0" title="" alt="[Eek!]" src="gr_eek2.gif" /> Those are some nice looking headers--Good job QTP

I still like my FLPs but those maybe in line for the other car someday <img border="0" title="" alt="[Big Grin]" src="gr_grin.gif" />

DONAIMIAN

iTrader: (18)

is it an option to order them unfinished. <img border="0" title="" alt="[Confused]" src="images/icons/confused.gif" />

Fenris Ulf

</font><blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr /><font size="2" face="Verdana, Helvetica, sans-serif">Originally posted by Gary Z:
<strong> The question about phasing makes no sense to me. Isn't the reason for equal length tubes to ensure proper phasing? The collector is symmetrical. How the tubes enter the collector seems to me to be irrelevant. What am I missing? And yes, the headers are beautiful. </strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">Do some research on LS1 firing order and collector design and you will see what I mean. Proper phasing is a function of primary length and the order that the primaries enter the collector.

Any chance of revising this 5+ year old design Barry?

lbz34

iTrader: (3)

Damn nice work. Now I am realizing why I have been waiting for the best header for my goals. Very nice Barry. Now just hurry up!!!!! JK

Good work
Sean
www.solid-technology.com

Mike K.

I really like the collectors, I am anxious to see some dyno graphs once some people have these installed. Maybe time to switch headers?

John B

iTrader: (10)

Very nice! It's great to see mfgr's like yourself and others finally realizing the benifits of merge collectors <img border="0" title="" alt="[Cool]" src="gr_images/icons/cool.gif" />

Jammer

iTrader: (1)

Barry is not kidding when he says he didnt clean the headers before showing the picture. I have them and with minimal elbo grease thay have a wonderful shine. Where the bends are in the pipe it does not get the chrome look, but the stait areas do...who cares, we cant really see them on and they will tarnish somewaht. Barry, I'm not sure why, but barry hasn't yet promoted one the the header upgrades, and in my opinion a nice performance feature in each type of collector (merge and standard)...the "Goilet"...or as called elsewhere the velocity spike.

Fenris Ulf

TTT

SSDude

They should help to increase performance tremendouly. When will a dyno be posted?

Fenris Ulf

TTT

Fenris Ulf

TTT

Y2K2LS1

dyno #'s? TTT <img border="0" title="" alt="[Big Grin]" src="gr_grin.gif" />

SSDude

TTT

SSDude

TTT

SSDude

TTT

The Juggernaut

iTrader: (7)

</font><blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr /><font size="2" face="Verdana, Helvetica, sans-serif">Originally posted by Fenris Ulf:
<strong> </font><blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr /><font size="2" face="Verdana, Helvetica, sans-serif">Originally posted by Gary Z:
<strong> The question about phasing makes no sense to me. Isn't the reason for equal length tubes to ensure proper phasing? The collector is symmetrical. How the tubes enter the collector seems to me to be irrelevant. What am I missing? And yes, the headers are beautiful. </strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">Do some research on LS1 firing order and collector design and you will see what I mean. Proper phasing is a function of primary length and the order that the primaries enter the collector.

Any chance of revising this 5+ year old design Barry? </strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">Any truth to what Fenris is saying?
Any reply?
This alone will dissuade me from buying these.

Phil99vette

iTrader: (11)

How about the corvette C5 headers?
Phillip

Gary Z

Ferris, I looked at the LS1 firing order but I still don't see what you mean. It would be best if exhaust pulses were spaced at equal intervals as they enter the collectors. This could only be accomplished if cylinders 1,4,6,and 7 fed one collector and cylinders 2,3,5,and 8 fed the other. This is impractical to say the least. There is no avoiding the fact that cylinders 2 and 6 on the passenger side are adjacent in the firing order. I don’t see how rearranging them in the passenger side collector changes anything. Any chance of you giving us an explanation? You can skip the vena contracta.

<small>[ March 11, 2003, 12:49 AM: Message edited by: Gary Z ]</small>