egr question

[gsxr141]

just so you know, i searched a few forums for the answers before posting.
i'm getting my "new" engine ready to go in, and i'm trying to see what i can remove to make it a cleaner install when done. i see that driftmotion sells an "egr delete kit", but it only includes 2 blockoffs. from what i've read it seems that i need to plug or block 3 holes.
also, what if any vsv's can i remove from the drivers side of the head? are they necessary? i've seen a few builds where a lot of these things are removed.
thanks so much in advance for the help.

 

[Dan_Gyoba]

I'd suggest that you not delete EGR, since it helps lower combustion chamber temperatures, but fine.

You should only need the 2 plates. One to keep the exhaust gasses from coming out the back of the head, and one to keep the intake plenum part from being a big hole. The exhaust gasses can still get to the EGR cooler at the back of the head, but that's really not a big deal, since they've got nowhere to go. You could plug the opening at the back of the #6 exhaust port, but it's a lot of work for dubious gain.

If you delete the EGR, then you can delete the VSV that opens the valve.

As for whether or not they're needed, I guess that depends on what you're doing for engine management. If you go stand-alone, then you can probably get rid of them all. Or if you look through the TSRM, figure out what they do, then decide if you need/want that feature.

I know that Toyota didn't just tack these on for no reason at all, so figure out what things do, then decide what you are willing to do without.

 

[gsxr141]

i've read opinions going both ways. you're against it, and a bunch of people are for it. this is why i'm coming here for advice, hopefully from people who have experience in this area.
also, i plan on going megasquirt in the very near future. i'm just now getting ready to throw the engine and new turbo setup in, and i want to do everything now ehile it's on the stand.

 

[bad88mk3]

You only need the two block off plates one for the hole behind the egr cooler plate and the one on the intake by the vaccume ports the third is on the lower intake by the last intake manifold runner were the egr mounts to it is left open because it is blocked by the first plate on the back of the head.That is why you only need the two block off plates.Also once you remove the egr system you can remove the one egr vsv and lines it will not set a code or turn the mil lamp on unless you have a california spec supra hope this helps.

 

[Poodles]

Without a standalone (or JDM ECU), it's not recommended to remove EGR. Also, the plates cover the port from #6 that goes to the EGR cooler on the back of the head, and the other one goes to the back of the intake manifold (these parts are replicas of the OEM used ones in the same spots on Supras in countries without EGR like Japan).

 

[Nick M]

And no, Toyota didn't just tack them on for no reason. The reason for wanting to lower combustion temps is to lower the formation of NOx.

 

[jetjock]

I'm no eco-nazi but what about the moral issue of dumping poison into the air we all breathe? What about violating both federal and state law? Or are you yet another self-centered asshole who doesn't care about those things? Keerist. I'll never understand why those who are going to live in the environment longest are so quick to shit in it...

 

[gsxr141]

soooo, what you're saying is that your car is completely stock?

just a heads up------ nothing we humans do has near the effect of the earths natural heating and cooling cycles. global warming happens on a regular basis. we will only be here for mere seconds in the scheme of things.

 

[jetjock]

Got it. Thanks for clearing that up. And thanks for the heads up on the smog versus global warming thing.

 

[BryanDyer]

there is yet a way for me to believe in global warming when everything has a cycle including earth and these rising in temperatures is simply a part of the earths cylce IMO

 

[bad88mk3]

Everyone has there opinions on keeping or removing the egr system. So its just one of those things you just need to decide to do or not do for yourself really cause your gonna hear so many opinions on this topic that you wont know what to do.But personally i have been running without the egr system on my supra for almost two years with no ill effects.And if you do deside to remove the egr system make sure you do it right and not half assed cause thats where people run into problems.

 

[Poodles]

I'm no eco-nazi but what about the moral issue of dumping poison into the air we all breathe? What about violating both federal and state law? Or are you yet another self-centered asshole who doesn't care about those things? Keerist. I'll never understand why those who are going to live in the environment longest are so quick to shit in it...

Well, I do have issues with state lowering the emission requirements on 20+ year old cars every year, but that's besides the point.

soooo, what you're saying is that your car is completely stock?

just a heads up------ nothing we humans do has near the effect of the earths natural heating and cooling cycles. global warming happens on a regular basis. we will only be here for mere seconds in the scheme of things.

LOL, so little you know. For starters, he no longer owns a Supra, but owned one for decades he brought brand new. And yes, it was "stock."

Also, NOX has nothing to do with global warming, but it's extremely toxic to the local environment...

there is yet a way for me to believe in global warming when everything has a cycle including earth and these rising in temperatures is simply a part of the earths cylce IMO

I don't believe in man made global warming either, but it's besides the point here.

Everyone has there opinions on keeping or removing the egr system. So its just one of those things you just need to decide to do or not do for yourself really cause your gonna hear so many opinions on this topic that you wont know what to do.But personally i have been running without the egr system on my supra for almost two years with no ill effects.And if you do deside to remove the egr system make sure you do it right and not half assed cause thats where people run into problems.

You have no ill effects that you're aware of. If you think "doing it right" is simply installing the block of plates, well...

 

[Nick M]

soooo, what you're saying is that your car is completely stock?

just a heads up------ nothing we humans do has near the effect of the earths natural heating and cooling cycles. global warming happens on a regular basis. we will only be here for mere seconds in the scheme of things.

While it is true that man made global warming is actually a hoax, NOx has nothing to do with CO2.

 

[jetjock]

Which is what I was getting at earlier. And for the record I'm not pro-environment as much as I am anti-punk. From street racing on down I'm sick of children in adult bodies who think only about themselves.

 

[gsxr141]

and for the record, i'm not a "street racing punk" as you so blindly guessed. but thanks for adding nothing to my thread. kindly troll on elsewhere.

 

[bad88mk3]

You have no ill effects that you're aware of. If you think "doing it right" is simply installing the block of plates, well...

No i think "doing it right" would be removing the egr cooler plate not leaving it on and causing heat build up in the #6 cylinder then instaling the block off plates and run/install either a jdm ecu or a standalone.I believe that would be "doing it right"

 

[Poodles]

and for the record, i'm not a "street racing punk" as you so blindly guessed. but thanks for adding nothing to my thread. kindly troll on elsewhere.

Reading comprehension > you

Also, notice those little medals over under his name? Yeah, you're living up to being one of those "punks."

No i think "doing it right" would be removing the egr cooler plate not leaving it on and causing heat build up in the #6 cylinder then instaling the block off plates and run/install either a jdm ecu or a standalone.I believe that would be "doing it right"

If you leave the EGR cooler on you're doing something terribly wrong, but not for the reasons you say. For starters, there's tons of cooling on the back of the head (duh, where do you think the cooling for the cooler comes from?). Leaving the cooler there adds another failure point, and the blockoff plates won't even fit on the other spot to keep the cooler...

 

[bad88mk3]

If you leave the EGR cooler on you're doing something terribly wrong, but not for the reasons you say. For starters, there's tons of cooling on the back of the head (duh, where do you think the cooling for the cooler comes from?). Leaving the cooler there adds another failure point, and the blockoff plates won't even fit on the other spot to keep the cooler...

This is a quote from arizona performance who makes the block off plates and drift motion who also sells them.So forgive me if my information is incorect. Quoted text.

"This is Arizona Performance's EGR block off plates, these are very high quality and will allow you to remove your restrictive, power hogging EGR system. Now sold as a 2pc set, and the plate for the back of the intake plenum has a 1/8" npt hole so you could install an additional vacuum fitting if needed! The other plate goes on the back of the head, and removing the EGR cooler plate is required. The hole where the plate covers is on the back of the head on the exhaust side. If you leave the EGR cooler plate and just block the hole on the intake side of the head, it causes heat buildup in the head and the #6 cylinder, leading to blown head gaskets! This is the only version we offer because it will not cause engine problems."

 

[Poodles]

Which has been proven to be BS over and over... They're also explaining why it goes on the back of the head, not that you should put it there and not at the other spot.

 

[Nick M]

This is a quote from arizona performance who makes the block off plates and drift motion who also sells them.So forgive me if my information is incorect. Quoted text.

So. Here is a quote for you.

Arizona performance is wrong

See how that works. I can do it too. Them saying it doesn't make it so. Or me saying it or anybody else. EGR operates in a limited rpm range, it doesn't just flow all the time.