8 replies to this topic

[theracer]

Hi

 

I'm hoping you guys could help me figure out what header I have.

 

Someone owed me money, but didn't have any money, so he gave me a bunch of '80s and '90s honda parts. The thing is, I'm not very familiar with honda stuff. One thing he gave me was a header, and he didn't know what it was from. I didn't know either, so I did a little searching online for honda exhaust manifold gaskets to see if any of them matched the header flange. I found one that looks like it matches, and it was for a 1984 honda civic. From there, I looked up 3rd gen civic headers, and found a few different headers that were made.

 

I think my header is a lightspeed header, but I'm not certain. Is there any way you guys can id the header so I know what I have? Also, if it is a lightspeed header, what is it worth? I'm going to try and sell it, but I don't know what to ask for it. Also, what are the specific engines that it will fit? 

 

 

 

 

 

 

thanks

 

 

[cbstdscott]

It is definitely a header for an EW engine (Civic and CRX from 1984-1987) and an old one at that because the O2 bung is up in a single tuber rather than down lower in the final collector as later designs have them.

 

Judging from the picture, it looks like a previous owner did some very poor welding to the flange at the end. I am not certain what the purpose of the welding is for, but I will guess that someone want this to fit on a "custom" exhaust of some sort.

 

Does this header have a CARB tag on one of the primary tubes, near the head? If so, it could be a DC Sport header. Judging by the quality of the welds (that are not hack jobs by a previous owner) it could be a Lightspeed or similar quality header.

 

Do you have any other interesting parts for sale?

 

Scott

[Greg Gauper]

I'll go as far as saying I think you have an original Mugen header.

I just compared the unit pictured to my old Mugen header and they look identical. 

The O2 bung is in the exact same location, and the merge collectors look exactly the same. 

The primary lengths look the same.

If so, that is a very rare header and one of the best headers ever built for our engines!

[Richardcoto452th]

Start a month long auction and you'll see the value of this piece.

[Vicious]

Not mugen I know that for a fact the mugen headers had a little weird support bracket on two of the runners and extra bracing at the collector flange.

[Vicious]

Dc sports header 1st gen design.





Dc on the left mugen on the right. The early dc headers came without carb plates and closely copied the mugen design but the welds weren't as detailed and they didn't have the extra braces the mugen unit had.

Lightspeed headers used a different runner design:

[Greg Gauper]

My mistake.  I didn't realize the older DC header was that similar to the Mugen. 

FWIW - I also have a newer DC header as well and it looks completely different than my Mugen.  When I did a quick compare of the unit in the OP post to my Mugen, they looked similar.

Upon closer inspection of the above pics, you can see some very subtle differences between the OPs header and the Mugen unit posted in Vicious photo.

The Mugen primaries are equal length hence the slight bend in the first primary runner, where as the DC header has simple straight runs. 

Also, the final merge collector on the Mugen has a smoother junction compared to the 'Y' shaped merge on the DC unit.

[theracer]

I don't think mine's a dc sports. If you look at the secondaries (the tubes that go into the final "y" collector) on my header, and then the dc one in the picture Vicious posted of a dc sport header, the dc sport's secondaries are spaced much wider than my header's. My header's secondaries are almost touching each other.

 

Also, the oxygen sensor bung is a little longer on mine compared to the dc sport one pictured. 

Edited by theracer, 22 April 2014 - 09:34 PM.

[Vicious]

It's a dc header just the 1st gen of headers dc put out. The second gen of headers is the one pictured. The 1st gen of headers copied the Mugen almost identically and they close at the collector Y. They also came without the carb plate which prompted the redesign.