I modified a EGR Blockoff plate (GM #10054880) off my GMC Syclone and with 5 minutes of grinding, it is the perfect EGR blockoff for my 1990 TGP upper intake manifold, it even reuses the stock EGR gasket, and you can eliminate the giant honking black plastic EGR valve that's always in your way when you try to reach for your rear spark plugs or to set the TV cable.

Capping off the EGR bung on your exhaust crossover is a big problem, fortunately the solution is extremely easy!  I went to the local ACE/True Value Hardware store and in the plumbing section found this fitting which fit PERFECTLY!  And despite being brass, after 10,000 miles it looks like the day I put it on.




Before installing, I loaded up the threads with 2000*F Anti-sieze just in case the threads themself didn't seal it up, and to make sure it came off in the future.




Here it is installed.  I was in the middle of replacing my valve springs, which turned into a "recondition the top end/manifolds etc. project".








After enlonging the hole, the stock EGR gasket fits perfectly:





After the install photo (10,000 miles later, and apologies for not having a better angle)





This mod requires chip editing (disabling EGR in the chip, otherwise it will set Code 32 as well as possibly attempt to enable EGR and raise ignition timing when not appropriate.)  Only do this mod for off-road applications or in non-emissions controlled areas.

My MPG is just as good as before, but my intake manifold doesn't get so damn hot anymore since there are no longer any hot Exhaust gases running back into it!!  And don't fall for the myth that "EGR reduces detonation" - my knock retard at WOT at 11-14 PSI boost is entirely normal (0*) after this mod.  If anything, EGR increases your WOT detonation via dramatically raising the temperature of your upper intake manifold.

PS: What's nice about this method is, it's completely uncompromising.  It's 100% reversible, doesn't require damaging any of your factory parts, and doesn't require you to buy ANYTHING else besides the blockoff plate, pipe cap, and maybe a new gasket.  Also doesn't require removing any other parts from the car.

Awesome!  I jsut welded my EGR port shut on the crossover and utilized the port in the plenum:

If only we didn't have e-tests here......

Yea thats really great.  :icon_rolleyes: Couple more fools that have no idea what an EGR does. How much HP did you gain :icon_question: Your now getting less gas milage. Glad your no where near me.  Pollute the shit out of your state. :icon_evil: Suppose the next write up is how to remove the cat.

Your plumbing cap is old old school.

Jud

I couldn't care less, it was a POS vacuum EGR anyhow.  Exhaust Gas Recirc.  There to reduce nox emmisions by lowering combustion temps.  WOOT!

it only works at certain times BTW... not at WOT for sure, it just opens at certain times so you can run leaner/advanced timing for better mileage without knocking, it has NOTHING to do with your WOT anything, it would be fully shut at WOT, or any boost at that. You gained absolutly nothing, your intake manifold it probably the same temprature, (like it actually matters really? probably itty bitty bit of temp) whats wrong with it being vacuum operated?? its still controled by the computer and solenoids to activate it.

It's gone, nothing you can do about it.

Quote from: sleeperred90tgp on June 23, 2007, 05:09:21 PM
Yea thats really great.  :icon_rolleyes: Couple more fools that have no idea what an EGR does. How much HP did you gain :icon_question: Your now getting less gas milage. Glad your no where near me.  Pollute the shit out of your state. :icon_evil: Suppose the next write up is how to remove the cat.

Your plumbing cap is old old school.

Jud

Wow.  Nothing like burning bridges huh Jud?  Not sure what I did to provoke this attack.  But I am sure that my car doesn't even compare to the pollution of a full field at the NASCAR races you enjoy, if that's really what you're concerned with.  :icon_question: :laugh:

I already posted in my thread that my gas mileage is unchanged.  Read it again. :icon_rolleyes:

In my experience checked via laptop datalogger, the intake manifold temps typically drop from about 150*F with EGR active, to 100*F.  That's a hell of a lot more temp reduction than you'll get via any "cold air intake" that I see people doing.  So given that people are looking for ways to reduce intake temps, this seems like a great one to me (as long as your car doesn't have emissions testing.)

Here we go again! :icon_rolleyes:

Sometime Jud we need to sit one of my non-EGR/non-Cat tuned cars next to your faked-out ECM farmer Bob way of tuning and see how much more emissions your car puts out than mine. No offense is intended here Jud...but unless you actually change the fuel tables and timing tables in the ECM you are no better off other than tuning by ear. I hate to say this but that style of tuning went away long ago with carbs and coil point systems.

EGR only works for the environment under incredibly light load or idle. NO OTHER TIME! Then as the forced induction portion of the motor takes over the catalytic converter is over-run anyway ESPECIALLY with a stock cal fuel table.

Ask yourself this question...how many CFM's of air does our motor pump out through a 2.5" exhaust? Then figure in how much recirculation are you actually going to get out of a 1/2" tube that then has to go through a 1/4" orifice? Does it help to recirculate gases under light and no throttle input from the motor...sure...but how much will it actually hurt if it is not there and the car's fuel is properly tuned?

I have a question. How big is that hole that comes out of the TGP crossover pipe? For my car, I had to have a crossover custom made, and I was wondering how close it would come to the size on mine so maybe I could use that same brass plug as well.

Quote from: TGPilot on June 26, 2007, 01:12:49 PM
Here we go again! :icon_rolleyes:

Sometime Jud we need to sit one of my non-EGR/non-Cat tuned cars next to your faked-out ECM farmer Bob way of tuning and see how much more emissions your car puts out than mine. No offense is intended here Jud...but unless you actually change the fuel tables and timing tables in the ECM you are no better off other than tuning by ear. I hate to say this but that style of tuning went away long ago with carbs and coil point systems.

EGR only works for the environment under incredibly light load or idle. NO OTHER TIME! Then as the forced induction portion of the motor takes over the catalytic converter is over-run anyway ESPECIALLY with a stock cal fuel table.

Ask yourself this question...how many CFM's of air does our motor pump out through a 2.5" exhaust? Then figure in how much recirculation are you actually going to get out of a 1/2" tube that then has to go through a 1/4" orifice? Does it help to recirculate gases under light and no throttle input from the motor...sure...but how much will it actually hurt if it is not there and the car's fuel is properly tuned?

Here we go again! 


So what is it that you condone removing smog equipment, or did you always :icon_question: Are you just another car enthusiast that dosen't under stand smog control equipment?  Actually I am ashamed of you for professing these modification. I understand that the brown cloud is headed your way. You trying to speed it up? Do you still put your used oil down the storm drain?

Kenny I would welcome putting my stock emission car up against your modified car. You don?t have a chance without a cat.  :laugh: You got your test numbers :icon_question: I do. My car is stock when I leave the strip. Obviously you haven?t figured it out yet but there are ways to tune up an also to tune down with out a chip. What?s the matter, can?t you go fast enough tuning your chips. Want a lesson on the old farmer bob way of tuning. My style of tuning is still used today by lots of race disciplines. I ran fuel injection before you were born and the theory hasen?t changed. Easier, cheaper and faster than sitting behind a computer for years and years and still not getting anywhere. I don?t have that much time left so I am going to enjoy it. Not knocking chip tuners, I think it?s a worth while endeavor and some year you will go fast but I wanted to go fast two years ago not in 3 years or 5 years after.

I guess now you are professing that you are smarter then all the engineers in the major auto companies regarding smog control. I don?t think so. That little hole seems to work fine to achieve the required levels of lower emission. The cat will flow more than your stock exhaust pipe which is not 2 1/2. So what?s the point in removing it? Just a question. Do you make your rebuilt xovers with or without the egr bung  :icon_question: :laugh:

:icon_idea:  If you can tune a car that produces less emissions with out emissions equipment what the hell are you doing struggling along in a one man shop for. I would think you could name your own salary or sell your process and retire. What would the big three pay for that.   :icon_eek:

Quote from: TookyCat on June 25, 2007, 01:26:58 PM

Quote from: sleeperred90tgp on June 23, 2007, 05:09:21 PM
Yea thats really great.  :icon_rolleyes: Couple more fools that have no idea what an EGR does. How much HP did you gain :icon_question: Your now getting less gas milage. Glad your no where near me.  Pollute the shit out of your state. :icon_evil: Suppose the next write up is how to remove the cat.

Your plumbing cap is old old school.

Jud

Wow.  Nothing like burning bridges huh Jud?  Not sure what I did to provoke this attack.  But I am sure that my car doesn't even compare to the pollution of a full field at the NASCAR races you enjoy, if that's really what you're concerned with.  :icon_question: :laugh:

I already posted in my thread that my gas mileage is unchanged.  Read it again. :icon_rolleyes:

In my experience checked via laptop datalogger, the intake manifold temps typically drop from about 150*F with EGR active, to 100*F.  That's a hell of a lot more temp reduction than you'll get via any "cold air intake" that I see people doing.  So given that people are looking for ways to reduce intake temps, this seems like a great one to me (as long as your car doesn't have emissions testing.)

Josh, If you want to consider that a burnt bridge that?s up to you. :icon_sad: Didn?t intend it that way but it pissess me off how proud you are to break federal law and pollute the air and then teach everybody how to do it.  You do it, 5 more on here do it, they tell 5 of there friends how cool it is and so on and pretty soon you have hundreds doing it. For what. There?s no benefit to your engine, there is nothing but detrement to your engine and  the planet. You can?t buy a car in the world without emission equipment. So why should you be so different.

Take your kids ( if you have any) up on  a mountain or in a plane over a major city on a hot day. Look down and let them see the yellow/brown haze and tell them I?m making this bigger for you so you can breathe in that shit. And if any of you develop asthma get the hell out of town because it might/can kill you. :icon_frown:

FYI NASCAR is now using unleaded and Indy cars are running ethanol, a step in the right direction. I imagine they will put cats on NASCAR in the next few years. There are almost no more solvent paints which helps, some of the old crap can kill you.

I am not an Al Gore but for the last 40 years I have installed three major manufacturing plants and have complied with EPA regulations at great time and cost with over 80 permits and paperwork that could fill a pick up bed for painting, plating, machining, welding waste storage ( heck the ink cartrages from our plotters and printers had to be disposed of properly) and a bunch more stuff. Why don?t? you do your part and rally others to do the same.

That all. Hope you have a smog free life.

Jud

Quote from: sleeperred90tgp on July 16, 2007, 02:37:38 PM
Here we go again! 


So what is it that you condone removing smog equipment, or did you always :icon_question: Are you just another car enthusiast that dosen't under stand smog control equipment?  Actually I am ashamed of you for professing these modification. I understand that the brown cloud is headed your way. You trying to speed it up? Do you still put your used oil down the storm drain?

You can be ashamed all you want Jud. Makes no difference to me. My last emissions test showed a 10 for CO (max was 220) and HC was a 4 where max was (430). That was with no EGR, NO CAT (gutted by Luke), and my tune. What amuses me about you is that unless it has happened to you in the dark ages it is not possible now. I think you and Jeff M would get along perfectly in your discussions of years past. The big companies CAN run without emissions control if they wanted because of how efficiently they are tuning now. The problem is the EPA has current laws in place from the 70's and 80's that REQUIRES things like EGR's, Air pumps, and CAT converters. Why do you think for the last 5 years up here and in many other states that have STRICT emissions standards that late model cars are exempt from emissions testing? They have gotten a bit smarter and rather than the normal cookie cutter assembly line they have spent longer periods of time making what they have burn more efficiently....JUST LIKE ME! Smog control has come so far over the years. Do you still think they are using bean can cat converters or did you know they upgraded to multi-layer efficient cats?

Quote from: sleeperred90tgp on July 16, 2007, 02:37:38 PMKenny I would welcome putting my stock emission car up against your modified car. You don?t have a chance without a cat.  :laugh: You got your test numbers :icon_question: I do. My car is stock when I leave the strip. Obviously you haven?t figured it out yet but there are ways to tune up an also to tune down with out a chip. What?s the matter, can?t you go fast enough tuning your chips. Want a lesson on the old farmer bob way of tuning. My style of tuning is still used today by lots of race disciplines. I ran fuel injection before you were born and the theory hasen?t changed. Easier, cheaper and faster than sitting behind a computer for years and years and still not getting anywhere. I don?t have that much time left so I am going to enjoy it. Not knocking chip tuners, I think it?s a worth while endeavor and some year you will go fast but I wanted to go fast two years ago not in 3 years or 5 years after.

As said before I was nearly to the minimums that would have FAILED me on my emissions test. If you show ZEROs across the board on a car that is more than 5 years old...they will fail you and force you to retest at their center in Denver.

Can't go fast enough tuning chips? A 14.1 at 98 MPH at 5800' above sea-level on a completely stock TSTE isn't fast enough. I think if we put in the calculations for altitude correction I am faster than you in the quarter. That car has EGR, Cat, stock turbo with 100k+ miles, etc.

Quote from: sleeperred90tgp on July 16, 2007, 02:37:38 PM

I guess now you are professing that you are smarter then all the engineers in the major auto companies regarding smog control. I don?t think so. That little hole seems to work fine to achieve the required levels of lower emission. The cat will flow more than your stock exhaust pipe which is not 2 1/2. So what?s the point in removing it? Just a question. Do you make your rebuilt xovers with or without the egr bung  :icon_question: :laugh:

:icon_idea:  If you can tune a car that produces less emissions with out emissions equipment what the hell are you doing struggling along in a one man shop for. I would think you could name your own salary or sell your process and retire. What would the big three pay for that.   :icon_eek:

Struggling? Not anymore there Jud. God has blessed me with a well moving business. People are coming in from all over the western states for me to tune their cars because they know my abilities. In fact there is a Turbo'd LS7 Corvette coming in on the car hauler tomorrow from your neck of the woods because it seems no one in Texas is able to tune it. Maybe I should turn the car-hauler around and give him your number so you can tune it for him with your tuning techniques???

I have been humbled by people quite a few times since I have been tuning cars. I was humbled by a 12 year old two weeks ago. He knew more off the top of his head than I knew with a calculator on calculating a proper compressor map for a build I was doing. I was also humbled on Saturday by a Haltech engineer working on Monster Tajima's million dollar Suzuki that broke the record on Pikes Peak that has stood for 13 years. I do not think I could ever be humbled by you though Jud. You say you have been working with EFI since before I was born? I do not see how that is possible considering I was born in 1971. I have been building motors since 1979 and tuning EFI with those fandagled machines we call computers since 1989.

I have NEVER laid claim to be the smartest man in the tuning world. The nice thing is I know my limits, but also know I can be educated as the technology arrives. Knowing how to properly tune is an art...not a matter of faking out a few sensors with paperclips and zeiner diodes to make it run faster. How many motors have you gone through in your TGP? Turbos?

When ever you are ready to come up to Colorado or pay for me to travel to Texas for the emissions challenge you let me know. I would need a three week heads up as to when so I can get it scheduled in...but I would be ready today if you wanted.