LXi DC Headers on an LX

[DJ Skillz 187]

I came upon DC 4-2-1 headers at the junk yard yesterday for $30, but they came out of an LX...
The efi motor has only one hose coming out of the exhaust manifold, while the carbed has two (or three? i forget now...).
From what I can tell, they both look like some kind of EGR system, it looks like they are both going into the intake manifold...
So my question -- would I just be able to block off this second hose to make these headers fit?

[russiankid]

I think you have the hot air hose, the one for the EGR and another one for something else on the carb.



Edit: Just checked the shop manual, you have the hot air hose, pipe for the EGR, and another one next to it. So there are 3.

[DJ Skillz 187]

This is the hose (red line) that has no attachment on the DC headers:

[russiankid]

Hm...note sure then.

[snoopyloopy]

lx-i here, and on my dcs headers, that line is my egr line. it's the only thing that goes around to the intake side of my engine from my headers. and btw, good deal there on the headers. $30 is a freaking steal.

[MessyHonda]

sweet post pics

[cygnus x-1]

Carbed motors have two lines from the exhaust manifold; one is EGR and the other is the air suction line. The air suction line allows fresh air into the exhaust stream to allow complete combustion of any unburnt fuel. FI motors don't need this because they control the fuel better to begin with.
You can block off the air suction port and the car should run fine but it may not pass emissions. The proper solution would be to weld another port onto the header to connect the suctions line to.

C|

[DJ Skillz 187]

Thanks for the responses guys.

I'll post pics tomorrow. I'm gonna head back to the junkyard tomorrow and then hopefully install the headers.

Just out of curiosity, how much do 3G DC 4-2-1 headers go for?

They are in pretty DAMN good condition, just a little bit of bottoming-out scratches on the 2-1 downpipe. (not to mention the two bolts I snapped trying to pull it out before the junkyard closed.. oops.)
I flipped when I saw em though, it was a pretty good score for the crap in the junkyards in otay mesa.

I also came up on an anodized aluminum short shifter for $10, and brand new NGK plug wires for $20... It was probably the most productive junkyard run I've ever made.

[forrest89sei]

Looks good!

hows it pull vs the stock Exhaust mani?

[labeledsk8r]

hey mey engine lol yeah like they said your FI engine only uses one hose , while carbed uses 2, all accord headers had both hoses (that i know of) just block it of, i have seen people either weld that spare hole up, or make a bolt in plug (better IMO) good find on those headers there super rare

**edit** i just relized that you have an lx and that your saying that the headers dont have the hook up, ouch, that has alot to do with your emitions and vacum pressure for running the spider web of lines the LX's have, im not to sure how well it would do blocked off, if it wouldnt work im sure you could either trade them for a set that would fit (paceseeter or DC) and if not that you could sell them for enough to buy a set that fits but it would have to be pacesetter, sorry bout the missconfusion and goodluck

[lostforawhile]

hm,the egr line goes from the side of the intake manifold,and is the smaller line,the big line comes from the box right behind the valve cover on the manifold,it doesn't connect directly to the manifold. the air suction line has a one way valve in that box that allows negative pulses in the exaust to pull fresh air into the exaust manifold. this helps the converter work more efficiently. I don't know how you are going to make that work and get it past the anal retentive cali smog inspectors. it doesn't have to even be hooked up for the car to run. it doesn't affect any of the other vaccume stuff on the engine at all. the air going into the manifold is pulled from the air cleaner. the control box does control that valve though. basically all it does is allow the exaust to be able to pull fresh air through the valve on demand. the wierd looking plastic thing between that box and the aircleaner is just a silencer and ductwork.

[lostforawhile]

see at the engine end of the red line,thats the valve,it's exactly the same as the old reed valve they used to put on american cars in the early days of emmisions. the only difference is the control box can turn it on and off. bolted to the other end of that valve is a wierd looking plastic box,alll that is is an air distribution manifold. fresh air comes in the other end through your air cleaner,that wierd looking tube thing on the opposite end is an air silencer. the other hoses hooked to that square plastic box are simply feeding fresh air from the air cleaner to other valves and so on. that square plastic box is actually empty.

[DJ Skillz 187]

Well, I took a trip to the junkyard again today and... more headers.
This time for carb motor. They're made by Lightspeed.

Also came across an SE-i and grabbed the center console.
I was gonna get the rear discs, but it was too much effort.

Pics are coming...

[DJ Skillz 187]

Left: Lightspeed Right: DC


Top: DC Bottom: Lightspeed


And the SE-i console:


(the cupholders were gone, so I just took a sweet cassette holder from another accord...)
It looks like I might be selling one of the two headers... probably the DC.

[Vanilla Sky]

how much for the lightspeed headers? i've never heard of them before.

[MessyHonda]

light speed headers? werid never heard of that brand b4

[lostforawhile]

lightspeed has been around for years,strange that you never heard of them before. I already sent a pm on the dc sports,even before the two sets of pictures were posted.

[DJ Skillz 187]

I havn't decided which ones to keep yet...
The DC's look like they're alot better made, but the Lightspeed are made to fit that damn pipe.
Has anyone heard anything good/bad about either?

[lostforawhile]

i'm not sure but lightspeed is another one of the well known brands. anything is better then pacesetter. if you sell one let me know,it doesn't matter which one. I don't use those fittings currently anyway. and especially not with the new carbs going in.

[Cheeseburger]

sweet

[DJ Skillz 187]

if you sell one let me know,it doesn't matter which one. I don't use those fittings currently anyway. and especially not with the new carbs going in.

I'll let you know... i'm gonna install one later this week...
possibly test to see how f'ed my emissions numbers get with the hose disconnected on the DC header.

[lostforawhile]

I'll let you know... i'm gonna install one later this week...
possibly test to see how f'ed my emissions numbers get with the hose disconnected on the DC header.

it will be f'ed up good,these cars use a three way catalytic converter,it requires a very specific amount of oxygen to be added to the exaust stream for it to work right. thats the reason for the computer control on the valve. how do you get away with emissions with your air filter cut away and your hot air hose disconnected anyway? I would think it wouldn't pass visual. here I don't have emissions,my car is too old. only in smoglanta farthur north, if it was up to me,if anyones car was over twenty years old,it should be exemp. if it's that old it's eithier a beater thats going to die soon,or a car someone cares about enough to keep running and probably isn't driven nearly as much as a modern car.

[MessyHonda]

sweet......DC are mainly fuel injected headers....you can use them but you will not pass emittions....

[DJ Skillz 187]

it will be f'ed up good,these cars use a three way catalytic converter,it requires a very specific amount of oxygen to be added to the exaust stream for it to work right. thats the reason for the computer control on the valve. how do you get away with emissions with your air filter cut away and your hot air hose disconnected anyway? I would think it wouldn't pass visual. here I don't have emissions,my car is too old. only in smoglanta farthur north, if it was up to me,if anyones car was over twenty years old,it should be exemp. if it's that old it's eithier a beater thats going to die soon,or a car someone cares about enough to keep running and probably isn't driven nearly as much as a modern car.

A friend of mine is a smog tech, so getting it to "pass" isn't a problem.
I would rather have it legal though, since it's a daily driver.
I've pretty much decided on keeping the Lightspeed header anyway, i'm going to install it right now...

[Cheeseburger]

sweet