ok i just need some explaining about this. im confused. lol

i was reading a writeup about the egr block off plate, and the egr valve is used to recirculate exhaust gas back into the intake manifold correct? well if that is correct how does it recirculate it? cause i dont see any lines comeing from the egr to the manifold

just a lil curious

 

the recirculation is under the valve, it has 2 ports one from teh head and one going into the manifold.

 

o cool, thanks

 

I dont know about u guys . . .but i think this kids def gotta b gay

 

its hooked up through your charcoal canister and all that fun stuff. It recirculates a small amount.

 

disconecting the egr makes the combustion chamber hotter and makes the car put out more nox to egr block off plate

im putting on my flame suit now cuase i know im gonna get fried for this i will explain in more detail

 

a little more in depth here...

the primary function of the egr valve is to reduce the NOx which starts when combustion temperature goes over 2500F so instead of pulling in air which will lean out the mix and make the motor run hotter it is actully better to recirculate the exhust gasses. the exhust gasses have already been burnt and cant combust again, putting 400-600F gas into the combustiuon chamber is going to make the motor run cooler becuase that gas cannot change mix, it will simply suck the heat out of the combustion chamber, much better then air that can burn at 2500F

 

i dunno about you guys but i think this kid is gay>>>>>>BBoyRJ2000

 

Yea, but doesn't the EGR only supply cylinder #1 those gases?

 

It's number 4 unless I'm missing something...#1 is closest to the timing belt.

 

Actually im pretty sure it's number 1!

My Egr went bad and got stuck open for the longest time. I had very bad idling issues and i was never able to figure it out. One guy i went to see told me that my 1st cylinder was misfiring, and it could be many things. A week later i bought a block off plate off someone here on HT, and my bad idle stopped, not even knowing that my EGR was causing this.

So ya, i think its the 1st cylinder from experience

 

um actually you guys are all wrong it supplies all four culinders with exhaust gas, when it only hits one cylinder is when its a clogged up mess in there and runs poorly.
so if your egr gets stuck open and you have carbon filled egfr ports then cylinder 1 gets filled with exhaust.
just take a look at the manifold, you can see the egr system running across the top of the runners...

 

This guy is the only guy with eyes apparently (v4lu3s) It does supply it to all of them. If you use a block off plate your car won't run correctly and you will get poor fuel mileage. You will also get a code and you will not ever come even close to passing smog. This is a race only type thing and has no advantages on the street. The number 1 cylinder is the one closest to teh timing belt for christ's sake! I don't think I would except any advise form someone that doesn't even know which cylinder is which btw. It is normal to have to clean teh EGR valve and the ports to keep it working properly and is a very common cause for many many drivability problems. Bad ilde is a very common one

 

I've heard the blocking off the egr can gain an H22 about 40 flywheel horses, seems a little high. Does anyone know what gain s can be expected?

 

OK, so it's all 4 cylinders.

On my 95 SI I have a block-off plate installed and I have had ZERO problems, but that is OBDI....

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 2lude4u &raquo;</TD></TR><TR><TD CLASS="quote">I've heard the blocking off the egr can gain an H22 about 40 flywheel horses, seems a little high. Does anyone know what gain s can be expected?</TD></TR></TABLE>

RRRRRiiiiiiiiiiiiiiiiiiiiiiiigggggggggggggggghhhhh hhhhhhhhhhttttttttttttttttt.............

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Skidtron89 &raquo;</TD></TR><TR><TD CLASS="quote">If you use a block off plate your car won't run correctly and you will get poor fuel mileage. You will also get a code and you will not ever come even close to passing smog. This is a race only type thing and has no advantages on the street. Bad idle is a very common one.</TD></TR></TABLE>

I've never had these problems on my '95. I think you're refurring to obd2. The way I see it, is that blocking the egr helps keep down the carbon deposite in the combustion chamber. Less garbage deposites= longer lasting engine and the engine runs smoother at idle. However, it does help prevent detonation.

 

if it had some sort of detriment to long term operation of the engine honda would not have put it there.
it reduces emissions, combustion chamber temps and reduces knock, as well as increases part throttle fuel milage...

for all out performance its not a big thing, but 95% of hte people out there are not gonna need to remove it at all.

 

?'s Not sure if this is right...

The new skunk2 manifold gets rid of the EGR valve doesnt it... (on 5th gens) Is there any problems associated with that, also does a JRSC get rid of the EGR?


Edit: skunk2 does get rid of the EGR and causes a CEL.

Still awaiting to know if the JRSC gets rid of the EGR and will it cause a CEL on a 5th gen, Shark were you at I need your input.
And does the JRSC use the Throttle body or is it its own TB.


Modified by revlimitx04 at 2:48 AM 8/31/2004

 

Here's a really big picture of the underside of the EGR valve. I'll put up the link cuz the pics is too damn big and I don't have photoshop to resize it!

http://reggie.shacknet.nu/users/domi...e/DSC00615.JPG

here's a pic of how dirty mine was!

http://reggie.shacknet.nu/users/domi...e/DSC00613.JPG

and here's a top shot of the intake manny with the valve off

http://reggie.shacknet.nu/users/domi...e/DSC00612.JPG

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by revlimitx04 &raquo;</TD></TR><TR><TD CLASS="quote">?'s Not sure if this is right...

The new skunk2 manifold gets rid of the EGR valve doesnt it... (on 5th gens) Is there any problems associated with that, also does a JRSC get rid of the EGR?


Edit: skunk2 does get rid of the EGR and causes a CEL.

Modified by revlimitx04 at 2:48 AM 8/31/2004</TD></TR></TABLE>

only ona 5th gen will it cause the light, it doesnt on a 4th gen...or obd1 basically...

 

oh yeah and from what i know the JRSC uses the egr since it only replaces the top half of the manifold AND it has a CARB # last i knew.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by v4lu3s &raquo;</TD></TR><TR><TD CLASS="quote">oh yeah and from what i know the JRSC uses the egr since it only replaces the top half of the manifold AND it has a CARB # last i knew.</TD></TR></TABLE>

thanks for the info, so the JRSC doesnt use the stock Throttle body then?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by v4lu3s &raquo;</TD></TR><TR><TD CLASS="quote">if it had some sort of detriment to long term operation of the engine honda would not have put it there.
it reduces emissions, combustion chamber temps and reduces knock, as well as increases part throttle fuel milage...</TD></TR></TABLE>
i was under the impression taht blocking off the egr will rduce compustion temps because it wont all the hot exhaust gases to recirculate....isnt that the whole idea of the egr block off mod???

 

no, exhaust gases are cooler than combustion. with the exhaust gases that wotn ignite, and slightly rich conditions it leads to cooled combustion chambers...
to quote one of those how things work type web pages :
" EGR also reduces NOx emission. How ? as the amount of combustible gas is reduced, temperature in combustion chamber is also reduced. Because NOx generates at high temperature, NOx emission is also reduced."

 

ok so what in the hell is the point of blocking the egr off then? :wacko: