Dyno of Open headers, or straight pipes compared to X/H pipe?
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I have Longtubes with about 1 1/2-2 feet of piping welded on each one. I've already read all the threads about scavenging x/h pipes bringing more power than a straight pipe set up. I would like to see some numbers, or runs or something though.. anyone have any before and afters, or at least a dyno run with straight pipes?
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I have Longtubes with about 1 1/2-2 feet of piping welded on each one. I've already read all the threads about scavenging x/h pipes bringing more power than a straight pipe set up. I would like to see some numbers, or runs or something though.. anyone have any before and afters, or at least a dyno run with straight pipes?
447rwhp through 3 inch H pipe w/ Borla XR-1 mufflers
408rwhp through open cutouts off the headers
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the rest of the setup could effect which way is faster? took the camaro to track with open only (not enough time to run closed)so i have not seen back to back results myself but was told by friend that his is faster through mufflers.
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Yeah, for example.. if the rest of his set up is a Y-pipe into an 80 series flowmaster, then I could see him picking up power no matter what he did.
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I pick up between .15 and .2 and 1.5-2 mph with mine open...but we mostly bracket race so they are more for making street cars **** themselves in fear and on faster cars the sound of me leaving has led to several redlighting
I am thinking of going to a dual 3" setup with a H or X in the future, but I don't have evidence of it gaining me more than 15hp right now and it would be somewhat costly and much more of a pain than other mods I could do first (pulley, heads)
Also make transmission and driveshaft related tasks much more of a pain...
I am thinking of going to a dual 3" setup with a H or X in the future, but I don't have evidence of it gaining me more than 15hp right now and it would be somewhat costly and much more of a pain than other mods I could do first (pulley, heads)
Also make transmission and driveshaft related tasks much more of a pain...