dc 4-2-1 headers vs. comptech 4-2-1 headers
whats up guys i have a 98 gsr and i want to put some headers on it. i have researched these two products and have chosen the two cause they are the cheapest of the majority of headers out there. i just want to get some input as to what you guys think would be a better choice for more bolt on power. my setup is only going to be i/h/e and thats it. any advice would be much appreciated.
thanks guys,
Sevak
thanks guys,
Sevak
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by blacK_Dc4 »</TD></TR><TR><TD CLASS="quote">the regular dc sports and comptech are only 2 inches .. not 2.25</TD></TR></TABLE>
true...i was think of their exhaust...be sure to get TIG
true...i was think of their exhaust...be sure to get TIG
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<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by kb12 »</TD></TR><TR><TD CLASS="quote">true...i was think of their exhaust...be sure to get TIG
</TD></TR></TABLE>
Can't get MIG anymore IIRC.
I wanted a header for daily driving so I went with the 2.25 comptech. This way I gain a little down low, instead of only in the high rpm range. if your going for the most HP, get the DC JDM 4-1.
Mmmmm tig welds...
</TD></TR></TABLE>Can't get MIG anymore IIRC.
I wanted a header for daily driving so I went with the 2.25 comptech. This way I gain a little down low, instead of only in the high rpm range. if your going for the most HP, get the DC JDM 4-1.
Mmmmm tig welds...
http://bob123e.tripod.com/thegreatheadertest/
Old news.. but this test has some good information in comparing the two. Although, this is on an ITR but you'll get the idea.
Modified by RuskeR at 11:23 AM 8/9/2005
Old news.. but this test has some good information in comparing the two. Although, this is on an ITR but you'll get the idea.
Modified by RuskeR at 11:23 AM 8/9/2005
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by RuskeR »</TD></TR><TR><TD CLASS="quote">http://bob123e.tripod.com/thegreatheadertest/
Old news.. but this test has some good information in comparing the two. Although, this is on an ITR but you'll get the idea.
Modified by RuskeR at 11:23 AM 8/9/2005</TD></TR></TABLE>
Well that makes Mugen, Jun, & Spoon look like crap. Seems like you'd want the DC for best HP/$ or Toda for best HP! I'd only go Comptech if it has way better clearance!
Old news.. but this test has some good information in comparing the two. Although, this is on an ITR but you'll get the idea.
Modified by RuskeR at 11:23 AM 8/9/2005</TD></TR></TABLE>
Well that makes Mugen, Jun, & Spoon look like crap. Seems like you'd want the DC for best HP/$ or Toda for best HP! I'd only go Comptech if it has way better clearance!
yeah looks like the dc jdm 4-1 is what i would go with but i thought the 4-2-1 design gives better low end power. just what i thought. but thanks alot for all the help you guys i really appreciate it im open to any more info anyone has. thanks again.
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by RuskeR »</TD></TR><TR><TD CLASS="quote"> Better clearence for the comptech? Has anyone had issues? I've yet to have any problems with my comptech header, running on H&R Sports/KYB AGX's. </TD></TR></TABLE>
I've got a 4-2-1 SS Comptech header for my B18c1. Great clearance. No issues with scraping at all. It actually sits as high or might even be a bit higher than the oil pan beccause of how its made. The good is that you get good torque down low, but get robbed on top end power. I had a normal DC 4-1 with a huge dent in it. It still pulled harder up top than my Comptech. It just depends what you want to use it for. I daily more often, so I went with Comptech
I've got a 4-2-1 SS Comptech header for my B18c1. Great clearance. No issues with scraping at all. It actually sits as high or might even be a bit higher than the oil pan beccause of how its made. The good is that you get good torque down low, but get robbed on top end power. I had a normal DC 4-1 with a huge dent in it. It still pulled harder up top than my Comptech. It just depends what you want to use it for. I daily more often, so I went with Comptech
you guys thanks so much for the help im gonna go with the dc 4-2-1 ss header. good price and good low end power is what i want and thats what those header is all about. i just want to know does anyone know what the collector end on that header is???
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by RuskeR »</TD></TR><TR><TD CLASS="quote"> Can't get MIG anymore IIRC.
I wanted a header for daily driving so I went with the 2.25 comptech. This way I gain a little down low, instead of only in the high rpm range. if your going for the most HP, get the DC JDM 4-1.
Mmmmm tig welds...
</TD></TR></TABLE>
I have a Comptech 4-2-1 and the collector is 2.0" not 2.25". IIRC there are no mass produced header for our car that has a 2.25: collector. They're either 2.0" or 2.5".
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by NinetySevenDC2 »</TD></TR><TR><TD CLASS="quote">you guys thanks so much for the help im gonna go with the dc 4-2-1 ss header. good price and good low end power is what i want and thats what those header is all about. i just want to know does anyone know what the collector end on that header is???</TD></TR></TABLE>
The collector on the DC is 2.0"
I wanted a header for daily driving so I went with the 2.25 comptech. This way I gain a little down low, instead of only in the high rpm range. if your going for the most HP, get the DC JDM 4-1.
Mmmmm tig welds...
</TD></TR></TABLE>I have a Comptech 4-2-1 and the collector is 2.0" not 2.25". IIRC there are no mass produced header for our car that has a 2.25: collector. They're either 2.0" or 2.5".
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by NinetySevenDC2 »</TD></TR><TR><TD CLASS="quote">you guys thanks so much for the help im gonna go with the dc 4-2-1 ss header. good price and good low end power is what i want and thats what those header is all about. i just want to know does anyone know what the collector end on that header is???</TD></TR></TABLE>
The collector on the DC is 2.0"
my DC 4-2-1 ceramic cracked where the 1 and 4 cylinder primaries meet
replaced it w/ a comptech TIG header, so far so good. no signs of stress or cracks anywhere. any difference in power would be negligible. i noticed the comptech extends out closer to the radiator though. you just gotta play w/ it a little when you install it.
but seriously, now that i think about it.. there are better things to spend $300-400 on than a bolt-on header. ITR cams are the first things to come to mind.
if you still need to have one of these, i'd go w/ the comptech just for the better quality welds alone. although i got a friend who's had a DC stainless 4-2-1 since 1999 and it's still perfect. go figure
replaced it w/ a comptech TIG header, so far so good. no signs of stress or cracks anywhere. any difference in power would be negligible. i noticed the comptech extends out closer to the radiator though. you just gotta play w/ it a little when you install it.
but seriously, now that i think about it.. there are better things to spend $300-400 on than a bolt-on header. ITR cams are the first things to come to mind.
if you still need to have one of these, i'd go w/ the comptech just for the better quality welds alone. although i got a friend who's had a DC stainless 4-2-1 since 1999 and it's still perfect. go figure



