warmpancakes
New member
who has done it and how did you do it? Ive seen pipe plugs, and JBweld Im thinking of a ball of jb weld smooshed into the port to block it will be the easiest method
blocking EGR port
- Thread starter warmpancakes
- Start date
Sportmachines
Active member
Re: blocking EGR port
Thread the port on the bottom of the intake and use a flush style plug with sealant liberally around the threads, etc.
Thread the port on the bottom of the intake and use a flush style plug with sealant liberally around the threads, etc.
warmpancakes
New member
Re: blocking EGR port
probably gonna do that, how well does your plate fit compared to others the one I have leaves a "lip" around the outside and it bothers me
probably gonna do that, how well does your plate fit compared to others the one I have leaves a "lip" around the outside and it bothers me
![Quickstop [UK]](/data/avatars/m/5/5165.jpg?1570199786){kind=avatar}
Quickstop [UK]
Combating adversyty.
Re: blocking EGR port
Incidentally, why does RPM have the block-off plate outside face milled out? Is it to recycle the material? Do Sportmachines have that it like that as well?
Incidentally, why does RPM have the block-off plate outside face milled out? Is it to recycle the material? Do Sportmachines have that it like that as well?
SY2932
Administrator
Re: blocking EGR port
Cut an aluminum block off plate .040" oversize all around so that you can blend it in when you sand it prior to polishing... Countersink it for flat head screws to give it a "smooth" look:
This is what I did on the bottom:
"3/8 X 18 NPT brass plug to be staked in place to prevent exhaust gas from ever entering upper intake."
Cut an aluminum block off plate .040" oversize all around so that you can blend it in when you sand it prior to polishing... Countersink it for flat head screws to give it a "smooth" look:
This is what I did on the bottom:
"3/8 X 18 NPT brass plug to be staked in place to prevent exhaust gas from ever entering upper intake."
whiteTy1214
New member
Re: blocking EGR port
such a nice looking intake, jealous big time. That must have taken alot of hard work
such a nice looking intake, jealous big time. That must have taken alot of hard work
Davemc1963
93 Ty Owner
Re: blocking EGR port
I think is a good mod to do. The only thing putting me off is any increase In emissions during the sniff test. I struggled passing this every year and had to disconnect the tan/black wire this year. Does it affect emissions much?
I think is a good mod to do. The only thing putting me off is any increase In emissions during the sniff test. I struggled passing this every year and had to disconnect the tan/black wire this year. Does it affect emissions much?
warmpancakes
New member
Davemc1963
93 Ty Owner
Re: blocking EGR port
I suppose thats a good question, as I haven't tried it or scanned it. I have operated it with a mityvac though. All the vac lines and solenoid are still stock and I'm running a stock chip/tune. I only have diacom+ at the minute though, but do have a lead for I think datamaster.
I suppose thats a good question, as I haven't tried it or scanned it. I have operated it with a mityvac though. All the vac lines and solenoid are still stock and I'm running a stock chip/tune. I only have diacom+ at the minute though, but do have a lead for I think datamaster.
warmpancakes
New member
warmpancakes
New member
Re: blocking EGR port
the upper gets pretty hot noticeable differences have been posted on IAT temps, and exhaust gas is 4-500 degrees hotter than coolant
the upper gets pretty hot noticeable differences have been posted on IAT temps, and exhaust gas is 4-500 degrees hotter than coolant
Quickstop [UK]
Combating adversyty.
Re: blocking EGR port
But with the plate blocked off, is there that much flow thorugh? It's like a radiator pipe with the end blocked - it gets cold and takes a while for the system to flush. Same principle - nowhere for the gas to go, so no flow so no heat?
Regardless, I'm blocking mine soon
But with the plate blocked off, is there that much flow thorugh? It's like a radiator pipe with the end blocked - it gets cold and takes a while for the system to flush. Same principle - nowhere for the gas to go, so no flow so no heat?
Regardless, I'm blocking mine soon
Re: blocking EGR port
But is that with the block off done like in post #6, or just a block off cover compared to a working egr? I'm saying there can't be much difference between post #6 and me just disconnecting the vac line to the egr valve. If there is a good difference, then I'm going to do it on mine.
But is that with the block off done like in post #6, or just a block off cover compared to a working egr? I'm saying there can't be much difference between post #6 and me just disconnecting the vac line to the egr valve. If there is a good difference, then I'm going to do it on mine.
Davemc1963
93 Ty Owner
Re: blocking EGR port
I can compare some of whats been discussed to the old BMC A series engine. Probably the easiest comparison I can think of. One of the most popular tuning tricks for the street on those engines (in the day) was to swap out the intake and exhaust manifolds and use an intake manifold like the Howley racing piece. It had a water pipe running through it. The intake manifold got very hot anyway due to heat transfer and also because it was a non crossflow engine it sat next to the exhaust manifold, but the water going through it allowed the engine to warm up more quickly (come off choke) because the fuel atomised more effectively when it was cold and when hot also provided some intake cooling. Like has been mentioned, the coolant temperature is usually lower than the head metal temperature. So a win/win in that case. Obviously a very different engine, but similar principles. The intake should be kept as cool as possible for best performance. Having coolant to the intake on a street engine isn't a bad thing even if it is 160+ degrees. Blocking egr exhaust gas as far away as possible should also help with heat transfer from the exhaust gas. Even if its dead headed, it will probably transfer a fair amount of heat.
However, as we all know recirculating exhaust gas through the egr valve also reduces emissions, as does having a 'high' coolant (engine) temperature. How much if any the egr affects idle emissions, I haven't been able to find out yet, hence my previous question. Neither is good for power as I think we all know. Emisions is just another problem some of us unfortunately still need to consider. The stock cam probably dosen't provide any exhaust gas reversion at idle, but a bigger cam with more overlap could actually help here, I dont know. Thats for a completely different discussion though. Its not my thread, so I'll butt out here, I just thought I'd bring up the potential emisions implication on doing this mod as I thought it could affect some folk.
I can compare some of whats been discussed to the old BMC A series engine. Probably the easiest comparison I can think of. One of the most popular tuning tricks for the street on those engines (in the day) was to swap out the intake and exhaust manifolds and use an intake manifold like the Howley racing piece. It had a water pipe running through it. The intake manifold got very hot anyway due to heat transfer and also because it was a non crossflow engine it sat next to the exhaust manifold, but the water going through it allowed the engine to warm up more quickly (come off choke) because the fuel atomised more effectively when it was cold and when hot also provided some intake cooling. Like has been mentioned, the coolant temperature is usually lower than the head metal temperature. So a win/win in that case. Obviously a very different engine, but similar principles. The intake should be kept as cool as possible for best performance. Having coolant to the intake on a street engine isn't a bad thing even if it is 160+ degrees. Blocking egr exhaust gas as far away as possible should also help with heat transfer from the exhaust gas. Even if its dead headed, it will probably transfer a fair amount of heat.
However, as we all know recirculating exhaust gas through the egr valve also reduces emissions, as does having a 'high' coolant (engine) temperature. How much if any the egr affects idle emissions, I haven't been able to find out yet, hence my previous question. Neither is good for power as I think we all know. Emisions is just another problem some of us unfortunately still need to consider. The stock cam probably dosen't provide any exhaust gas reversion at idle, but a bigger cam with more overlap could actually help here, I dont know. Thats for a completely different discussion though. Its not my thread, so I'll butt out here, I just thought I'd bring up the potential emisions implication on doing this mod as I thought it could affect some folk.
Last edited:
Mephisto
These trucks are cursed
Re: blocking EGR port
reviving an old thread here...
so is there any difference between leaving the stock egr on and plugging the vac line versus removing the egr and using a plate?
It would be nice to keep the stock egr on there, plug the vac line, and get the benefit. That way come smog time i can just put the vac line back on and be good to go in 2 seconds.
reviving an old thread here...
so is there any difference between leaving the stock egr on and plugging the vac line versus removing the egr and using a plate?
It would be nice to keep the stock egr on there, plug the vac line, and get the benefit. That way come smog time i can just put the vac line back on and be good to go in 2 seconds.
midnightbluS10
Banned
Re: blocking EGR port
You can get Datamaster and like the first 10 runs free just to get you started.
www.ttspowersystems.com
You can get Datamaster and like the first 10 runs free just to get you started.
www.ttspowersystems.com