Project 3.4 Camaro

Making myself some EGR blockoff plates today, and have the first one done, turned out pretty well, and since no one manufactures them for our engines afaik, I was wondering if anyone might want to buy some if I made more, I would be looking to get $15 a pair, I will post up some pics of the intake manifold one I did today, and the header/exhaust manifold possibly.

Project 3.4 Camaro

Pics, 2nd one is with high temp exhaust paint(still drying)

Six_Shooter

iTrader: (2)

Why do people want to get rid of something that is beneficial to an engine's longevity and economy?

84CAMARO28inFL

Dude, i was just about to post up a question "Can i really cap off the air tube that goes to the check valve in a 2.8" Is this what you are referring to?

Id LOVE to buy EGR cap off plates!

This is what i want to know if it can be capped off, here is the pic and of course yes the tape came loose, if i can cap it off and the engine will run ok i will go to the hardware store right now.

I also think this is "Air Check Valve" not sure.. Can i "Cap it off" w Hardware store stuff?

Six_Shooter

iTrader: (2)

That is not the EGR, that is the A.I.R. system.

84CAMARO28inFL

Can i cap it off? Or does it "Need" to be on. ?

Mine, as you can see, separated, and when that tape gives - and it did - it run like it got a lot of problems, barely runs right at all.

Im ready to get to cappin'........

Blue1990camaro

iTrader: (1)

u dont need the ait injection system, just remove it all lol the smog pump and everything

84CAMARO28inFL

Will do! specially since mine is BROKE and runs like S**t with it like that

Sounds like if i go to hardware store and "get to cappin'" and cap off the one that came out, ill be ok ?

That "Check valve" needs to stay, right? Where is "Smog pump?" thanks!

Blue1990camaro

iTrader: (1)

what year and engine camaro do u have? i hav an 85 Z28 305 tpi and im getting my old 90 RS 3.1 back saturday (cn c in "Tyler's Project Threa")

just remove all the smog ****, honestly it shuldnt make any diff in how it runs, just in ur exhaust emissions

58mark

iTrader: (3)

I'm very interested in the cap. Put me on the buy list. I wont install it for two more years (when my car ages out of testing)

58mark

iTrader: (3)

Now that i think about it, i wonder if they would fail it based on a visual inspection?

Project 3.4 Camaro

1. vacuum EGRs tend to suck
2. overly complicated vacuum hose systems suck
3. if I wanted fuel economy I would have bought a civic
4. I really don't see how dumping carbon deposits into your intake system improves longevity
5. EGR does not open at WOT, and I believe low speed as well, to me its just more clutter, weight, ugliness, and complication under the hood.
6. carbon deposits decrease intake manifold volume, flow capacity, and build up on valves, all bad things for performance.
My , I know people are highly divided on the gain/lack of gain derived from EGR removal, so probably something like 50% of people who read this will disagree with me, but to each their own.

84CAMARO28inFL

84 Camaro 2.8, the "A.I.R" system (???) SEEMS to make it run GOOD when the tape holds up (lol yea the pipe broke) and HORRIBLE when off, as it just now separated.

Im serously ready to go to the hardware storee and find brass caps that fit, then "Clamp" them on as tight as i can, the hose and the pipe, to "create vacuum" i mean its very a lot of pipes, and it IS broke and it SEEMS to make a difference in how it runs.

Smog pump - idk
vacuum hoses = there are a lot
that one seems to make everything run BAD when its off and GOOD when its on, my engine probably needs a few other "Sensors" but thats the main thing.

I have more pictures of the bay
Inspection is not a concern.

Project 3.4 Camaro

Yes it would, but you could do one of two things, put it in between the EGR and exhaust manifold, or between the EGR pipe and intake manifold, or both, or you can put it on every time it gets inspected.

PM me if still interested.

RubberDucky

iTrader: (4)

This. They look to be thin enough to just be bolted on with the EGR it's self.

58mark

iTrader: (3)

If it would be something i could pop on and off once a year, i would consider it

How much would an EGR delete hurt my mpg?

84CAMARO28inFL

Will "Capping off" the A.I.R. tube and hose help my car run if it was the source of a "Vacuum leak" before i "capped" it off? 84 2.8

crazybird

Why cant you just accept some people like to try new things?

evilemokid94

iTrader: (6)

iv made these before... made mine out of polished aluminum after i traced the intake hole so its nice and smooth and lines up correctly

project89

iTrader: (1)

u only need to make one. bolt it on the intake side were the tube connects behind the tb . u can make them out of really thin aluminum and its not even noticable.

its also very easy 2 bolt removal to remove it if u need to to pass smog

honestly the vacum operated egr valves are cheap to replace if they go bad and they dont hurt performance at all .

if ur getting carbon deposits inthe intake that means ur motor is full of deposits already, do a seafoam treatment and it will stop


the only reason i see to get rid of the egr is for ppl who use the stock manifolds and go turbocharged, the backpresur ein the ex system can push open the egr while under boost and wreak havoc

Six_Shooter

iTrader: (2)

I've never seen this, especially when you apply pressure to the top side of the diaphragm, to hold it closed.

project89

iTrader: (1)

depends on the backpresure to boost presure ratio. most turbos systems have more presure preturbine then they do in the manifold.
also if egr is not commanded there wont be any vacum/boost presure on the top of the egr

i did measurements on my car with a presure gauge pre turbine and i think the egr would start to open with about 30psi in the manifolds. its been so long i couldnt tell ya the exact presure it took though

Six_Shooter

iTrader: (2)

If you're talking about exhaust pressure, that's an easy fix, plumb in the exhaust side after the turbine.

The thing about using diaphragms to hold valves closed is the multiplication of pressure that happens, if it didn't wastegates wouldn't work.

82camaro82

hey i need a egr block off plate so please get back to me thanks

disjaukifa

I'd be interested in one as well . . .