Headers
10-20-2011, 04:20 PM
#1
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Headers
I have 2007 cobalt ss/sc. I have meagan catback exhaust and I'm looken for the best header with downpipe and highflow cat. Does anybody know which is the best and for the money? thank you.
10-23-2011, 10:51 AM
#7
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Thank you people for the responses back.. yea i like the megan cat back. its mad loud but nice especially when down shiften.
What about the vibrant header with downpipe? is that good does anybody know or have it??
What about the vibrant header with downpipe? is that good does anybody know or have it??
Last edited by Ant_ssj07; 10-23-2011 at 10:51 AM. Reason: Automerged Doublepost
10-24-2011, 11:41 AM
#21
It has not been proven on the LSJ yet (at least on this site), or the other sites I research on.
No one has ever provided any "real" data on a true long tube vs. shorty vs. midlength (sure there have been threads, but not one was a true comparrison).
The Badmab shorty has been proven to produce upwards of 11whp & 11wtq.
Time Attack ran a shorty header and made more power off nitrous than most kids on this site will ever see with a supercharged LSJ.
Like i said in my last post.... until I see proof (not theory & peoples opinions), I will stand by the performance provided by a shorty header on the LSJ.
Last edited by Staged07SS; 10-24-2011 at 01:51 PM.
10-31-2011, 10:16 PM
#23
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I said in theory yes.... A long tube should make more power at certain points in the RPM band.
It has not been proven on the LSJ yet (at least on this site), or the other sites I research on.
No one has ever provided any "real" data on a true long tube vs. shorty vs. midlength (sure there have been threads, but not one was a true comparrison).
The Badmab shorty has been proven to produce upwards of 11whp & 11wtq.
Time Attack ran a shorty header and made more power off nitrous than most kids on this site will ever see with a supercharged LSJ.
Like i said in my last post.... until I see proof (not theory & peoples opinions), I will stand by the performance provided by a shorty header on the LSJ.
It has not been proven on the LSJ yet (at least on this site), or the other sites I research on.
No one has ever provided any "real" data on a true long tube vs. shorty vs. midlength (sure there have been threads, but not one was a true comparrison).
The Badmab shorty has been proven to produce upwards of 11whp & 11wtq.
Time Attack ran a shorty header and made more power off nitrous than most kids on this site will ever see with a supercharged LSJ.
Like i said in my last post.... until I see proof (not theory & peoples opinions), I will stand by the performance provided by a shorty header on the LSJ.
I respect anyone who wants to make decisions based on hard data, however using well established principles of physics (even if they haven't be fully proven with dyno data on our cars) is a sound way to make predictions of the performance characteristics of different header designs. If we didn't adhere to predictive analysis us engineers wouldn't have jobs and all R&D would be conducted by lab techs.
I am afraid I got a bit long winded - in summary: I am not trying to take sides on this one and say one product is better or makes more power than the other (obviously we don't have the data to support such a claim). I am only trying to point out that it is okay for people to make assumptions (read generalizations) based on proven physics concepts.
11-01-2011, 07:13 AM
#24
Staged - I don't know if the debate should be centered on the total power number so much as where the power is made. The length of the primaries has a lot to do with where the peak torque will be in the RPM band (generally speaking the shorter the primary the higher the RPM's at peak torque). Header design is all a balancing act between making the most peak power at a location (RPM) that is ideal for the design application (racing, street, ect) by modifying the primary length, diameter, and collector size and design.
I respect anyone who wants to make decisions based on hard data, however using well established principles of physics (even if they haven't be fully proven with dyno data on our cars) is a sound way to make predictions of the performance characteristics of different header designs. If we didn't adhere to predictive analysis us engineers wouldn't have jobs and all R&D would be conducted by lab techs.
I am afraid I got a bit long winded - in summary: I am not trying to take sides on this one and say one product is better or makes more power than the other (obviously we don't have the data to support such a claim). I am only trying to point out that it is okay for people to make assumptions (read generalizations) based on proven physics concepts.
I respect anyone who wants to make decisions based on hard data, however using well established principles of physics (even if they haven't be fully proven with dyno data on our cars) is a sound way to make predictions of the performance characteristics of different header designs. If we didn't adhere to predictive analysis us engineers wouldn't have jobs and all R&D would be conducted by lab techs.
I am afraid I got a bit long winded - in summary: I am not trying to take sides on this one and say one product is better or makes more power than the other (obviously we don't have the data to support such a claim). I am only trying to point out that it is okay for people to make assumptions (read generalizations) based on proven physics concepts.
Last edited by Staged07SS; 11-01-2011 at 10:16 AM.
11-01-2011, 03:16 PM
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I've got the megan catback with zzp header/downpipe 3" - 2.5" magnaflow catted. it does sound like poop at times, and its waaay too loud. I picked them all up for pretty cheap and in good condition so im not complaining too much. I really enjoy them though.
The difference in putting a silencer on the tip, raises boot pressure sooo much. So im assuming the comination i have flows fairly well (without the silencer). Either way, they're a header, really not going to make or break a race for you.
The difference in putting a silencer on the tip, raises boot pressure sooo much. So im assuming the comination i have flows fairly well (without the silencer). Either way, they're a header, really not going to make or break a race for you.