Under Plenum Job SUCCESSFULLY Running With Removed Equipment

[j.hardstyle]

First off, the EGR system has been used in the US since the 60s...thats 50 years, not 30.

Second, laziness? Lol....I just cleaned 20 years worth of s*** out of my plenum and runners, to the point where I would comfortably eat off of it. I also cleaned the baffles on the valve covers until they were virtually spotless. Not to mention my timing covers, which were covered in grime, coked oil, fresh oil from leaking crank seal, etc. So to say that it is an act of laziness is pretty much s***, sorry.

Third, you and everyone else can run with your emissions equipment. That wont hurt me at all. I guess it hurts you though that I removed MY emissions equipment on MY OWN CAR. Just because its not the norm...or maybe youre just pissed off that you didnt think of it first, because you were scared your car would explode. NOBODY has given me ONE good reason why the EGR should be kept. Not one single person. You guys spit your s*** about how its soooo bad and has soooo many negative effects by not running an EGR, yet you give not ONE example as to what is so bad about it. You give not ONE REFERENCE as to where a motor was DESTROYED or had ANYTHING go wrong by NOT running an EGR.....A DEVICE THAT IS SIMPLY FOR EMISSIONS PURPOSES ONLY. So tell me....what is going to happen to my car???? It hasnt blown up yet! Not even a single hiccup from removing anything! A JDM VH45 DOESNT EVEN HAVE AN EGR VALVE.....go figure that one out????? I have yet to see ONE JDM motor that has an EGR valve....and I have yet to see one motor, JDM or USDM, have any negative results from removing the EGR or ANY other emissions controls.

So no disrespect to you or anyone else on the board....but until you can come up with some solid evidence as to why the EGR shouldnt be tampered with, and why it is SO bad to run without it, you may as well not even waste your breath.

And to the few that ACTUALLY helped me out along the way, like OwnerCS, I appreciate guys like you on this board.

[qship96]

First off, the EGR system has been used in the US since the 60s...thats 50 years, not 30.

Second, laziness? Lol....I just cleaned 20 years worth of s*** out of my plenum and runners, to the point where I would comfortably eat off of it. I also cleaned the baffles on the valve covers until they were virtually spotless. Not to mention my timing covers, which were covered in grime, coked oil, fresh oil from leaking crank seal, etc. So to say that it is an act of laziness is pretty much bullsh*t, sorry.

Third, you and everyone else can run with your emissions equipment. That wont hurt me at all. I guess it hurts you though that I removed MY emissions equipment on MY OWN CAR. Just because its not the norm...or maybe youre just pissed off that you didnt think of it first, because you were scared your car would explode. NOBODY has given me ONE good reason why the EGR should be kept. Not one single person. You guys spit your s*** about how its soooo bad and has soooo many negative effects by not running an EGR, yet you give not ONE example as to what is so bad about it. You give not ONE REFERENCE as to where a motor was DESTROYED or had ANYTHING go wrong by NOT running an EGR.....A DEVICE THAT IS SIMPLY FOR EMISSIONS PURPOSES ONLY. So tell me....what is going to happen to my car???? It hasnt blown up yet! Not even a single hiccup from removing anything! A JDM VH45 DOESNT EVEN HAVE AN EGR VALVE.....go figure that one out????? I have yet to see ONE JDM motor that has an EGR valve....and I have yet to see one motor, JDM or USDM, have any negative results from removing the EGR or ANY other emissions controls.

So no disrespect to you or anyone else on the board....but until you can come up with some solid evidence as to why the EGR shouldnt be tampered with, and why it is SO bad to run without it, you may as well not even waste your breath.

And to the few that ACTUALLY helped me out along the way, like OwnerCS, I appreciate guys like you on this board.

Putting aside the pure selfishness your poor decision displays towards doing your part to help reduce pollution in a world that does not belong to you only, and the federal laws you chose to break in doing so for zero positive benefits to how your engine runs- you may want to research the other consequences of your poor actions....start with a research of combustion temperatures and exhaust valve life and how a properly operating EGR system affects both in a positive way by lowering temperatures significantly.Keep reading and studying until you fully understand the topic and you will regret your actions.......if not,keep researching till you do,its that simple.

Your babbling about jdm motors not having an egr system {if true, but I doubt it seriously} has zero comparison value, as if true, the engine design and control systems{think ECU tuning} is programmed{designed} to take combustion and cylinder head temperatures into consideration and account for them in its programming.

Hate to inform you, but if you think all that dirt and gunk you cleaned was solely caused by the EGR system, you need more study time.....the PVC system is a large{largest?} contributor to any filth and buildup in the intake system,a result of recirculating oil mist vapor combined with blow-by gasses from the combustion chamber from the crankcase to the intake system. The more worn the engine becomes, the faster the intake becomes dirty again.....

You remind me of the kid who says "I have been smoking cigarettes for 5 years and dont have cancer" therefore smoking doesnt cause cancer.

[j.hardstyle]

THANK GOD for you, qship....I dont know what I would have done without you chiming in once again. YOU ARE SO RIGHT and I AM WRONG....wow, I fully regret removing my emission control equipment and hate that I am breaking the law, even though not every state gives a flying s*** about emissions. Because the minute amount of extra pollution that I am putting out is affecting your emphyzema, I apologize. Oh MY what have I done?? I am soooooo sorry, qship, I should go and spank myself now.

With that said, you can go f*** yourself, thanks.

[Infinitiguy19]

I said 30+ because I was guessing and did not take in to account of the 10 years that have gone by so fast.

But whats with the rotten attitude? People like you are the reason other people left these forums! Your not the only one with idea's, look at my topics! I have put tweeters, auto dimming rear view mirror and more from a 1994-1996 Q45. Hell I have the plans for remote entry that work but why give them away to people like you?

And by the way JDM engines do have EGR valves, You probably saw a pictures with one removed!

[paranoidjack]

There is offering input, and there is being disparaging. Sadly, many members on this site do not see the difference.

One member who posted several times in this thread needs to be a bit less condescending, it really serves no purpose on the internet but to alienate those you are trying to "help."

We are all here because we find the Q a great car. However, we are all different people from different walks of life. As in the real world, we need to respect that here in this e-world. I try to avoid saying anything on the internet I wouldn't say in person - it seems to work well for me.

[j.hardstyle]

X2 @ paranoidjack....

@infinitiguy....I am not the only one with a "rotten attitude" here. I was sharing my experience and input from the very beginning, stating that I was successfully running my car with several systems removed. Something that apparently has never been done on this side of the forum. Then several people come along attacking and criticizing what I did JUST to further their thinking that their s*** doesnt stink. WOW, so what if someone has owned their Q since brand new?? So what if you keep your Q completely stock?? SOME OF US do not want to keep our cars stock...some of us enjoy performance, some of us enjoy simplifying things or making the engine bay less cluttered, some of us enjoy trying new things that are out of the norm. Yet when we share these things, OH NO thats the wrong thing to do to YOUR car. Whats worse is some people have to be a complete d!ck about everything...over the frickin internet. I really could care less what this guy has to say, but one thing that I wont let happen is shutting up and letting certain people think they "told me". You have ideas....s***, I have ideas too! Whats wrong with ME sharing those ideas?? You can share yours, I should be able to share mine. So as far as the rotten attitude...you tell me.

P.S. - NO, JDM motor DOES NOT have an EGR valve. The plenum doesnt even have a port for the EGR. AS THE SAME for MANY MANY MANY Honda and Toyota motors, AS WELL AS OTHER NISSAN MOTORS. Since you seem to have seen a JDM motor with an EGR valve, PLEASE provide the evidence and I will GLADLY admit that I am wrong. But maybe you havent seen a JDM motor firsthand, and you want to stab at me to make me look like I dont know what I am talking about.

[superuber]

I'm also running a level 10 transmission-stall converter and nos.

[superuber]

BTW- Nice job on the deleted EGR.

[j.hardstyle]

What nitrous setup are you using, and how are you liking it?
I was planning on a Zex wet setup, 75 shot.

[superuber]

Its a JWT fogger. Not that great, but fun. 150 shot. Does crazy burnouts.

[j.hardstyle]

I am not too fond of dry setups....150 shot is quite a bit. But then again, you have an upgraded transmission as well. I am sure my stocker will get stripped out.

[superuber]

Yes, not worried about the transmission, more the rear diff. No problems yet. But I'm not an idiot with it. I'm in my 40's.

[OwnerCS]

I'm also running a level 10 transmission-stall converter and nos.

Cool - so there are three of us with LevelTens..

[Q451990]

Very nice! Did you sand the rough texture down before painting? How long did it take?

For clarification, the JDM VH45DE did come with an EGR system, but it did not come with pre-cats. Check out this pic...


I was just wanting to know the reasoning behind wanting to get rid of the EGR. You said your reasons... it's up to everyone else to decide what makes more sense. Now, if you retune the ECU to deal with a different combustion environment, you might be on to something... but just fooling it with a resistor seems like a recipe for detonation to me. In my mind the risk of hotter valves and detonation outweigh the benefits of a cleaner engine bay and less cleaning - but it's your car!

Heath

[Infinitiguy19]

This may make me sound weird but I have 2 gigs of pictures just on Q45 stuff. Trust me I have seen enough JDM engines come through the auctions. I have dozens of pictures that would prove you wrong, But why waste my valuable time....

Hell you removed the EGR valve to clean up your engine bay!? Do you have TCS, HICAS and Active Suspension all on your car? The EGR takes up very little room, so that not the best reason to do what you did. Either way it is your car!

[j.hardstyle]

@Heath, I gave the plenum a hot bath (yes in my bathtub) in a mixture of NXT carwash, PurplePower and a bit of acetone to clean it all out. Used a stifff scrub brush to get the oils and s*** off of it, then hit it with a scuff pad, coarse steel wool and then light steel wool. Never hit it with sand paper, but a bit of the rough casting did manage to vanish. After that, hit it with Duplicolor gloss black engine enamel (out in the 27* weather with it dumping snow), took it inside and let it dry for 45 minutes (70*) then stuck it in the oven at 300* for 30 minutes. Then it sat for 2 days at room temp. Paint is hard as a rock and awesome now.

That is funny about the JDM VH having an EGR because every other Nissan, Honda, Subaru JDM motor that I have seen has NOT had an EGR. I am sure if you did a quick Google search as well on this, you will find this info out pretty quick. I have physically been in possession of a couple SR20's, F22's, etc. and not once seen an EGR valve or port for an EGR valve.

It is also odd that JDM motor importer websites will list the VH for sale, and say right below:

" You are buying a Used Imported JDM VH45DE 4.5L V8 Infiniti Q45 1993 - 1995 Engine with estimated mileage of 30 - 50k miles , since Japanese engines do not come with a crank sensor/EGR/CAS, you will need to transfer these parts from your old engine to the JDM engine!"

[Q451990]

Thanks for the description on the plenum process... it looks every bit as good as the powder coated ones I have seen!

Heath

[j.hardstyle]

I was actually going to have everything PC'd but I wanted to get everything in chrome and it wouldnt have turned out right on aluminum.

One thing I did with my DSM was have the valve cover coated with Chromex exhaust coating. That was the closest thing to chrome, turned out very nice.

[Infinitiguy19]

" You are buying a Used Imported JDM VH45DE 4.5L V8 Infiniti Q45 1993 - 1995 Engine with estimated mileage of 30 - 50k miles , since Japanese engines do not come with a crank sensor/EGR/CAS, you will need to transfer these parts from your old engine to the JDM engine!"

JDM Engines must still be using a point ignition system?

What does CAS stand for? Crank Angle Sensor! That JDM importer is a moron!

[BLACKonBLACK98]

I can confirm that a lot of JDM engines do not have EGR systems, but yes the VH does. The most relevant example od a motor that JDM motor that does not is the 1UZ out of the LS400 of similar years. In fact, for the few that modify the motor it is not uncommon to remove the system. Reasons: remove parts that are failure prone, reduce intake temperatures, and clean up the engine bay. These cars still pass emissions consistently.

To the OP, you gotta accept this forum for what it is. Once upon a time there were some really knowledgable guys who pushed maintenance and opposed midification from an extremely scientific perspective (often open ended questions that no one could rebut). Unfotunately they're gone, so all that's left is the midset they created. Use this site for tech info (even then don't expect much fresh helpful input) and keep the mods to yourself.

[j.hardstyle]

I can confirm that a lot of JDM engines do not have EGR systems, but yes the VH does. The most relevant example od a motor that JDM motor that does not is the 1UZ out of the LS400 of similar years. In fact, for the few that modify the motor it is not uncommon to remove the system. Reasons: remove parts that are failure prone, reduce intake temperatures, and clean up the engine bay. These cars still pass emissions consistently.

To the OP, you gotta accept this forum for what it is. Once upon a time there were some really knowledgable guys who pushed maintenance and opposed midification from an extremely scientific perspective (often open ended questions that no one could rebut). Unfotunately they're gone, so all that's left is the midset they created. Use this site for tech info (even then don't expect much fresh helpful input) and keep the mods to yourself.

Thanks for your input...as I stated as well, every JDM motor I have seen does not have an EGR. But I will keep what you said in mind as well....the tech info is great, and there has been a couple people that have helped me a lot (like OwnerCS) but I will keep everything to myself aside from that. There have been a few people that I converse with that also stated they only come on here for tech info, especially after being shot down for posting mods about their car. Sad that we all dont have an equal word on the board.

[Infinitiguy19]

How did you block off the pipe from the exhaust manifold?

[j.hardstyle]

How did you block off the pipe from the exhaust manifold?

Old 240 trick....you remove the flare nut from the EGR tube, stick a nickel into the port on the exhaust manifold then tighten the flare nut down on top of it. Seals perfect with no exhaust leaks, nickel is the perfect size to plug the hole. Check out all the 240 guys that do it ;-)

[turael]

I'm new to this forum, and late to this post, but let me put in my 2c. or 2 nickels, whatever you yanks use.

I've been modifying imports for a long while now... sr20, 2jz, rb25, and now vh. Engine swaps, turbo upgrades, cam swaps, valve stem seal replacement, I once stripped an R33 to a bare shell, learnt a lot doing that.

In my mind, when I buy a car for $500 (this latest q45 in my driveway) and I start ripping it to shreds, the priority is simplifying this stock engine mess. Nissan made the car to work consistently, conform to laws, be nice and quiet, be safe, perform the same across most conditions. I want the car to be easy to work on, simple and clean in the engine bay, have a nice sound to it, and perform well in my conditions. If this means removing things like the carbon canister, or the EGR, or any other random s*** Nissan thought it would be great to put in, I will do it. My car will, without a doubt, have other issues pop up before anything I modify affects anything to a degree high enough worth looking into.

Also FWIW my most reliable car is my 180sx. It runs a SR20DET, no EGR of course, redone wiring, different intercooler, different radiator, different battery location (boot), different ECU, AFM, injectors, sparkplugs, cams, pistons, rods, turbo, boost level, exhaust, clutch, air filter/cai, suspension, control arms, wheels, tyres, wheel track, bumpers, seats, steering wheel, ETC! The only thing in the last 2 years that has "broken" on it was the stock Nissan starter relay.

[bruce2]

Hi j.hardstyle,

I am thinking of getting rid of the EGR system on my next plenum job. Years ago I saw my uncle in his shop bypassing the EGR system in diagnostic and some time plug up the vacuum with a screw to keep the car running properly. I believe it is for better without it. However, I'll be appreciate you if you keep us posted and give us a headup if there is any negative as the result.

By the way, nice clean job!

Bruce

[j.hardstyle]

Hi j.hardstyle,

I am thinking of getting rid of the EGR system on my next plenum job. Years ago I saw my uncle in his shop bypassing the EGR system in diagnostic and some time plug up the vacuum with a screw to keep the car running properly. I believe it is for better without it. However, I'll be appreciate you if you keep us posted and give us a headup if there is any negative as the result.

By the way, nice clean job!

Bruce

Bruce, It has been a couple of weeks now and I have yet to run into any trouble whatsoever. There are a couple of things I dont remember if I mentioned or not...the EGR solenoid must be left plugged in. There is no way to "fool" the computer into thinking it is there. Just disconnect all of the vacuum lines going to it and tuck the solenoid away. The EGR has two parts...the main valve itself, as well as a little valve next to it. Both pieces need to be yanked. For the EVAP (charcoal) canister, just disconnect the vacuum lines and s*** going to it, leave the solenoid plugged in but remove all the metal vac lines and rubber vac lines. There is one rubber line that attaches to the canister that is your fuel tank vent line....leave that hose and route it to the plastic elbow at the bottom of the engine bay, wheel well/fender area...its directly below the canister. This will allow any vapors to be routed underneath the car...i have not noticed any gas smell or anything so whatever vapor is vented is very very minute.

[qship96]

All that .....and his Q is already listed for sale! Just another kid who thought he knew what he was getting into.

PS wonder why he deleted every picture of his q45 "project" on this website? reason is many are chasing him down for selling parts to individuals and after getting their money, pocketing it and not sending the parts .....be aware if you see any parts listed by him!

[maxnix]

You act like this isnt commonly done on vehicles...just because it is done to a Q and its "virtually unheard of" doesnt make it wrong/bad/etc. My car will not blow up over removing the EGR system...

But your cruise economy will be lessened by about 10%.

Can't wait until other problems crop up. One thing someone with your great understanding may not understand is that no OEM installs unnecessary devices on their cars for the sheer hell of it. Everything serves a purpose. And Nissan engineers weren't dumb when these cars were designed and built.

[maxnix]

First off, the EGR system has been used in the US since the 60s...thats 50 years, not 30.

WRONG! Air pumps were used, but not EGR. First EGR were really crude anyway in that they were simple passages from the exhaust manifold into the intake manifold. This resulted i many drivability and idling problems until vacuum controlled valves were introduced in the early seventies.

[paranoidjack]

I think everyone's missing the point - this is a CAR forum.

Why comments are being made about owners is beyond me.

Everybody who said anything personal needs to immediately realize no one here cares to read the rants of two bickering men, it is uncomfortable and ruins the good data this forum provides.

We can all do whatever we want to our cars. That's it. When I deem mine dead (which will differ from some of you "deeming" it dead), I will bring it to my local shooting range and cut it to pieces with 308, 233, .45, and 9mm ammunition. I'll then have a metal guy friend of mine come and get it.

The first one of you that gives me s*** for it on that day can screw.

Keep the personal comments to yourselves. Thank you for taking the time to report in what you have done with your vehicle. Whether we choose to do this to our vehicles or not, it is valuable information.