Evo iii intake egr

[travisgoldkuhl]

Does anyone know if the evo iii lntake manifold has egr, or is it just solid cast?

 

[snowborder714]

A true Evo III won't have the provisions for it. I believe the RVRs might though.

 

[serviceguy]

A true Evo III won't have the provisions for it. I believe the RVRs might though.

I believe it's the other way around. My Evo III IM has the provision. The EGR recirculates the exhaust gas back into the upper intercooler pipe rather than directly into the IM. RVR, Evo I and II did not have such provision.

 

[gorf]

Maybe the answer is it depends what country the E3 manifold comes from. I got one from the UK - no EGR, I just blocked off the vacuum lines.

 

[serviceguy]

Maybe the answer is it depends what country the E3 manifold comes from. I got one from the UK - no EGR, I just blocked off the vacuum lines.

My info, other than the actual manifold (which I bought in Japan from a member in here), are from this post from a member that appears to be from England. He specifically mentioned that when he removed his EGR system from his Evo III he had to 'downgrade' to an EVO I/II intercooler pipe both of which are lacking the provision for the EGR. All the possible info on Ex/RVR IM is provided by that thread.

Evo I, II, III are all the same anyway if you don't care about EGR (I would say in that case an Evo I or II would be even better since you don't need to plug that extra hole).

The RVR Im would require some porting in order to match a Evo/1g TB (since the original TB is 54mm).

 

[Sirnixalot]

there is an egr system on the evo 3 but the banjo bolt that is bolted to the intake manifold is just a regular bolt, no through ports.

It is just there for looks.

There is no egr block off plate provisions on the intake manifold if that's what you are asking

 

[donniekak]

I'm not sure if that is egr on the evo, or part of an anti lag setup.

 

[estoyaqui30]

I have an EVO 3 and it has an EGR port. It's a threaded port, unfortunately it's not a tapered thread. Meant to be used with a banjo bolt.

 

[synthetek]

Its not an EGR its Secondary Air system. Its like a reverse EGR it shoots air from the intake into the exhaust manifold instead of exhaust into to the intake like an EGR. They are non functional too, the banjo bolts did not have holes in them so they came blocked off from the factory.

 

[serviceguy]

Its not an EGR its Secondary Air system. Its like a reverse EGR it shoots air from the intake into the exhaust manifold instead of exhaust into to the intake like an EGR. They are non functional too, the banjo bolts did not have holes in them so they came blocked off from the factory.

If it is whatever you say it is, being plugged right into the EGR port of the head, it would be pumping cold air into the head and not int the exhaust manifold. I am curious about where you got that piece of information. Later Evos had an anti-lag system built to push air into the exhaust manifold.

 

[synthetek]

If it is whatever you say it is, being plugged right into the EGR port of the head, it would be pumping cold air into the head and not int the exhaust manifold.

The EGR port on the back of the head comes out right into the #4 exhaust port, its the same way that the exhaust gas goes into the intake manifold when the EGR opens. The SAS would open when there is pressure in the intake and you let off the gas, kind of like a BOV but venting into the exhaust manifold.

 

[serviceguy]

The EGR port on the back of the head comes out right into the #4 exhaust port, its the same way that the exhaust gas goes into the intake manifold when the EGR opens. The SAS would open when there is pressure in the intake and you let off the gas, kind of like a BOV but venting into the exhaust manifold.

This is getting interesting. What is the goal of pushing (cold) air into the exhaust manifold when letting off the gas?

 

[synthetek]

This is getting interesting. What is the goal of pushing (cold) air into the exhaust manifold when letting off the gas?

Some cars have SAS as a form of emissions control, early 2g 420a had it, but it was later recalled, maybe that's why the EVOS have the banjo bolt blocked off from the factory? some people seem to think its some sort of antilag. The EVO III ecu pinout has pins for a secondary air solenoid but nothing for EGR.

According to CAPS/ASA Its called secondary air supply but whatever it is its non functional.

 

[serviceguy]

I asked an opinion about this issue to the guys at evo123.net and there's different takes over there too. I've always thought it was EGR but could never make sense of the return being plugged before the throttle plate, your explanation seems the only one to make sense, especially since the port is actually plugged by the fake banjo bolt. It appears it was an attempt at a rudimentary anti-lag system built in for homologation reasons only (Evo being designed to compete in Rallies) and then plugged on the production vehicles. It's always good to learn new things. At least it's clear that Evo III IM have the port (whatever it is).

 

[travisgoldkuhl]

Ok so i have no egr hole or that extra vacuum nipple so i must have a evo 1 or 2 manni

 

[serviceguy]

Ok so i have no egr hole or that extra vacuum nipple so i must have a evo 1 or 2 manni

Yes, basically you're better off since it wouldn't be functional anyway. Saves you the time to plug that port.

 

[travisgoldkuhl]

I notice the evo doesn't have a hole on top of it for the map sensor. Do i need a different sensor or an adapter of some sort?

 

[synthetek]

I notice the evo doesn't have a hole on top of it for the map sensor. Do i need a different sensor or an adapter of some sort?

Its not a map sensor its an MDP sensor. Without an EGR you don't need it, its part of the EGR system. It will not affect performance not having it but you will most likely get a CEL for the MDP and EGR unless you have dsmlink.

 

[finesse49ers]

Look at this! A whole thread dedicated to the subject. How 'bout that?!

http://www.dsmtuners.com/forums/bolt-tech/245603-lancer-evolution-iii-intake-manifold.html

 

[synthetek]

Look at this! A whole thread dedicated to the subject. How 'bout that?!

http://www.dsmtuners.com/forums/bolt-tech/245603-lancer-evolution-iii-intake-manifold.html

But that thread didn't really the question of whether or not it actually had an EGR.

 

[finesse49ers]

But that thread didn't really the question of whether or not it actually had an EGR.

Yes it did. The EVO III does have an EGR port along with a nipple coming out the opposite end of the throttle body while the EVO I and II do not have that nipple nor an EGR port. Also the EVO I, II, and III all have 60mm throttle body ports while the RVR manifold is 52mm on the throttle body port.

Ok so i have no egr hole or that extra vacuum nipple so i must have a evo 1 or 2 manni

If your throttle body port is 60mm then you're exactly correct as this is what I have also.

 

[synthetek]

Yes it did. The EVO III does have an EGR port along with a nipple coming out the opposite end of the throttle body while the EVO I and II do not have that nipple nor an EGR port. Also the EVO I, II, and III all have 60mm throttle body ports while the RVR manifold is 52mm on the throttle body port.



If your throttle body port is 60mm then you're exactly correct as this is what I have also.

Did you read this thread at all? it does not have an EGR it has a port for a non functional ALS or SAS system.

 

[finesse49ers]

Did you read this thread at all? it does not have an EGR it has a port for a non functional ALS or SAS system.

Yes sir I read it, I see where you brought up the ALS or SLS system idea. If that's what you want to go with then that's fine. I won't protest it.

 

[estoyaqui30]

The EGR port on the back of the head comes out right into the #4 exhaust port, its the same way that the exhaust gas goes into the intake manifold when the EGR opens. The SAS would open when there is pressure in the intake and you let off the gas, kind of like a BOV but venting into the exhaust manifold.

The port on the EVO 3 manifold is not going into the manifold, it's going directly into EGR exhaust port....It's not going into a runner, so I don't understand how you would push air back into the number 4 cylinder. This just makes no sense. I contacted the guy that I got the manifold from in Asia and he said that it was in fact EGR and could get me the entire setup if I want to pay for the shipping and customs.