Cable Posted October 7, 2010 Author Share Posted October 7, 2010 (edited) You should be more concerned about the piping diameter going down to 2.5 inches instead of 3 inches. For the LS1 motors with aggressive heads and cam, a full 3 inch exhaust with either an X or H pipe is highly recommended. Cable, is the 2.5 inch piping all we can do? 3 inches would provide optimum performance gained from the custom long tubes. Also these will be an X pipe correct? I think the 3" exhaust is for single exhaust systems like on 4th Gen F-Bodies. There are several reasons for the 2.5" headpipes. First is of course ground clearence. The second is because of the location of the cutouts is being planned to be placed just after where the header collectors end and the headpipes begin. So because of that, anytime you'd be racing logic says the cutouts would be open, bypassing the rest of the exhaust anyway. The cutouts themselves will be 3", the reduced down to 2.5". As far as H or X pipe, that has yet to be decided until the header prototype is completed and the mock up the headpipe prototype is started. Edited October 7, 2010 by Cable Quote Link to comment Share on other sites More sharing options...
mxgsfmdpx Posted October 7, 2010 Share Posted October 7, 2010 I think the 3" exhaust is for single exhaust systems like on 4th Gen F-Bodies. There are several reasons for the 2.5" headpipes. First is of course ground clearence. The second is because of the location of the cutouts is being planned to be placed just after where the header collectors end and the headpipes begin. So because of that, anytime you'd be racing logic says the cutouts would be open, bypassing the rest of the exhaust anyway. The cutouts themselves will be 3", the reduced down to 2.5". As far as H or X pipe, that has yet to be decided until the header prototype is completed and I begin to mock up the headpipe prototype. Sounds good. Quote Link to comment Share on other sites More sharing options...
Dans toy Posted October 7, 2010 Share Posted October 7, 2010 Cable, Great deal for a set of headers. The other fitment concern I have is the angle of the engine, front to back, for proper clearance at the collector. I'm not running an independant rearend so the angle going out may be different. IF you have some reference points to determine if this is going to work i'd appreciate it. Dan Quote Link to comment Share on other sites More sharing options...
Cable Posted October 7, 2010 Author Share Posted October 7, 2010 (edited) Cable, Great deal for a set of headers. The other fitment concern I have is the angle of the engine, front to back, for proper clearance at the collector. I'm not running an independant rearend so the angle going out may be different. IF you have some reference points to determine if this is going to work i'd appreciate it. Dan Hello Dan, I think I understand what you are asking, so I'll do my best to answer. The goal for the headers and collectors is to roughly follow the path that most guys use for their exhaust if running the JTR/Sanderson shorties. This way hopefully some folks will be able to reuse their existing exhaust by cutting their existing headpipes back and then having V-band flanges (and reducers, if needed) welded to their existing exhaust headpipes to allow hookup to the header collectors with ease. I hope this helps!! Edited October 7, 2010 by Cable Quote Link to comment Share on other sites More sharing options...
Lighft01 Posted October 7, 2010 Share Posted October 7, 2010 (edited) I am in for sure...1 7/8 with 3" collectors is fine with me...let me know when and where to send the money. Edited October 7, 2010 by Lighft01 Quote Link to comment Share on other sites More sharing options...
Dans toy Posted October 7, 2010 Share Posted October 7, 2010 Totally. I want anyone/everyone seeing what they are buying BEFORE any money is exchanged. However, just for the sake of argument, let's assume that each set will cost $750. That way everyone knows what the cost COULD be, if it ends up being lower, that would be even better. I plan on having the prototype set built within a week or so, then they get sent off to the header producer for a quote to copy them. I'd say less than 2 months from today before the first production set is completed. Fitment will be the same or slightly better than the Sanderson's currently sold by JTR. See pricing above Ken, see above Cable, The other clearance concern I have is at the collector. I'm not using an independant rearend so the angle of the engine/trans may be different (collector to high or to low). If we could come up with some reference points that would be great. Dan If the Sanderson headers (that JTR sells) work on your custom setup, then these will work too. Quote Link to comment Share on other sites More sharing options...
Cable Posted October 7, 2010 Author Share Posted October 7, 2010 I am in for sure...1 7/8 with 3" collectors is fine with me...let me know when and where to send the money. They are only going to be offered in 1 3/4" primaries (not 1 7/8") with 3" collectors. Sorry dude, let me know if you are still interested. Thanks!! Quote Link to comment Share on other sites More sharing options...
Dans toy Posted October 7, 2010 Share Posted October 7, 2010 Cable, Excuse my redundant question. Did not see that my last post went through. Won't these headers have a collector that plains out on the horizontal under the floor pan making engine height critical ? Quote Link to comment Share on other sites More sharing options...
Cable Posted October 7, 2010 Author Share Posted October 7, 2010 Cable, Excuse my redundant question. Did not see that my last post went through. Won't these headers have a collector that plains out on the horizontal under the floor pan making engine height critical ? Dan, I am glad you clarified your question. Yes, the engine height will play a role in relation to the collector(s) to the floor of the car and the ground. The plan is to have the collectors and the floor running exactly parallel to each other. I just can't tell you (yet) that you aren't going to have problems if you aren't using the JCI mounting kit. However, after the prototypes are completed I will have pics posted of the them installed and off the car with a measuring tape to hopefully give you a better idea. I hope that help at least alittle. Quote Link to comment Share on other sites More sharing options...
Dans toy Posted October 7, 2010 Share Posted October 7, 2010 look forward to prototype pictures and measurements. Quote Link to comment Share on other sites More sharing options...
boyracer Posted October 10, 2010 Share Posted October 10, 2010 Really intrested as well, hope this all works out. Quote Link to comment Share on other sites More sharing options...
armorer Posted October 10, 2010 Share Posted October 10, 2010 I need a set for my next build, will these be sold only with the headpipes as a set? Quote Link to comment Share on other sites More sharing options...
Cable Posted October 10, 2010 Author Share Posted October 10, 2010 I need a set for my next build, will these be sold only with the headpipes as a set? No, the headpipes are completely optional. Thanks for the interest!!! Quote Link to comment Share on other sites More sharing options...
dreco Posted October 11, 2010 Share Posted October 11, 2010 i'm also still needing headers for my project. Quote Link to comment Share on other sites More sharing options...
Blown77Z Posted October 11, 2010 Share Posted October 11, 2010 Call me dumb, but what exactly is a "headpipe" ? Quote Link to comment Share on other sites More sharing options...
mxgsfmdpx Posted October 11, 2010 Share Posted October 11, 2010 Call me dumb, but what exactly is a "headpipe" ? This is the "middle section" of the exhaust which includes the X or H pipe. Basically from the headers to where it will bolt up to the remaining pipes/mufflers/tips. Does that help explain it? Quote Link to comment Share on other sites More sharing options...
Blown77Z Posted October 11, 2010 Share Posted October 11, 2010 This is the "middle section" of the exhaust which includes the X or H pipe. Basically from the headers to where it will bolt up to the remaining pipes/mufflers/tips. Does that help explain it? Yep ! Thanks. Now, on with the prototypes ! Quote Link to comment Share on other sites More sharing options...
Cable Posted October 12, 2010 Author Share Posted October 12, 2010 Okay guys, the driver side fits. Still need to attach the collector, but it gives you an idea, especially compared to the driver's side JTR/Sanderson header. I figured the driver's side would be the hardest due to the steering shaft. Gotta get some other work done and then I'll get started on the passenger side. Sorry for the poor pic, digital camera is broken... Quote Link to comment Share on other sites More sharing options...
mxgsfmdpx Posted October 12, 2010 Share Posted October 12, 2010 Those look so sick! Can't wait to see more photos. Quote Link to comment Share on other sites More sharing options...
SUNNY Z Posted October 13, 2010 Share Posted October 13, 2010 My hat goes off to you my friend. Looks nice. I find it hard to believe it's taken the market this long for someone to come up with this! Looks sick, none the less. Quote Link to comment Share on other sites More sharing options...
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