346 w/ open headers?
346 w/ open headers? Does anyone have a heads/cam dyno graph with open headers?? I want my next exhaust to have a quite (restrictive) muffler with cutouts in front of it, but the only place I have space to put them is right behind the header collectors. The headers are 1 7/8" Dynatechs with merge collectors. I'm curious about how much low end I would loose with basically open headers.
Not that low end is that important w/ 6000 rpm launches. <img border="0" title="" alt="[Wink]" src="gr_images/icons/wink.gif" /> What would the gains/losses look like accross the graph with open headers?
TIA <img border="0" alt="[cheers]" title="" src="graemlins/gr_cheers.gif" />
<small>[ April 26, 2002, 12:03 AM: Message edited by: Onyx LS1 ]</small>
Not that low end is that important w/ 6000 rpm launches. <img border="0" title="" alt="[Wink]" src="gr_images/icons/wink.gif" /> What would the gains/losses look like accross the graph with open headers?
TIA <img border="0" alt="[cheers]" title="" src="graemlins/gr_cheers.gif" />
<small>[ April 26, 2002, 12:03 AM: Message edited by: Onyx LS1 ]</small>
TECH Fanatic
Joined: Dec 2001
Posts: 1,182
Likes: 0
Re: 346 w/ open headers? well on my setup the loss in low end with the open headers is VERY obvious but above 3 grand...LOOK OUT! very fun <img border="0" title="" alt="[Big Grin]" src="gr_grin.gif" />
FYI I am running a GTP Pig cam/S2 heads and Hooker Long tubes along with many other little toys <img border="0" alt="[devil]" title="" src="graemlins/gr_devil.gif" />
sorry no dyno numbers yet for ya, working on it though <img border="0" alt="[Burnout]" title="" src="graemlins/burnout.gif" />
<img border="0" alt="[Firebird]" title="" src="graemlins/formula.gif" />
<small>[ April 26, 2002, 10:48 AM: Message edited by: PhatT/A ]</small>
FYI I am running a GTP Pig cam/S2 heads and Hooker Long tubes along with many other little toys <img border="0" alt="[devil]" title="" src="graemlins/gr_devil.gif" />
sorry no dyno numbers yet for ya, working on it though <img border="0" alt="[Burnout]" title="" src="graemlins/burnout.gif" />
<img border="0" alt="[Firebird]" title="" src="graemlins/formula.gif" />
<small>[ April 26, 2002, 10:48 AM: Message edited by: PhatT/A ]</small>
