whats the most info you can tell me about this.

whats the most infomation you can give me on this part. i broke the plastic nipple on it while taking the old hose off. need a new one.

 

 

edit: forgot to add the pics

thanks guys haha

Looks like the vacuum control solenoid for the EGR valve. There about 75.00 at Subaru.

WTF is the EGR anyway. Exhaust Gas somethingorother?. I don't think a single JDM car got one, atleast not in the BG era. What do they do?

exhaust gas recirculation. it's for recycling the fumes from the crankcase and valve covers that are released during normal use. the hoses capture it and send it back into the intake for complete combustion. it has nothing to do with power or performance, and everything to do with emissions. some people just remove the hoses and put breather filters on to clean up the air if their egr system has issues.

it has nothing to do with power or performance,

 

wrong. it takes away power and increases mpg. why do you think most high hp performance parts dont use egr systems. performance intakes, heads, manifolds, ect dont even have the pieces to hook up an egr system like the hoses and brackets.

Wrong again. I have an 86 mustang with 411 HP with a trick flow track heat I take and twisted wedge heads, and it's emissions legal with cats and and EGR valve. Full race parts don't use EGR because there's no emissions laws on race tracks yet. But there will be one day. My boy has a Shelby super snake with 725 stock HP, guess what.... He's got and EGR valve.

why do you think most high hp performance parts dont use egr systems.

 

i didnt say all. most big hp car parts also require or stongly suggest disconnect the a/c components too, but i have a friend with an IS300 with just under 900hp. 825hp w/ac running ( i still cant believe he forgot to turn the a/c off when they dynoed it the first time)

I don't know why people pull the a/c out. That's just stupid. I got a/c in every car I own. What's it gonna save you 8 hp? Leave it in. Make that 8 hp up else.

Wrong again. I have an 86 mustang with 411 HP with a trick flow track heat I take and twisted wedge heads, and it's emissions legal with cats and and EGR valve. Full race parts don't use EGR because there's no emissions laws on race tracks yet. But there will be one day. My boy has a Shelby super snake with 725 stock HP, guess what.... He's got and EGR valve.

 

 

I literally laughed out loud when I read this thread.

 

No offense.

 

 

 

What you guys are thinking of when you speak of crankcase and valve cover ventilation is a PCV system. The PCV system stands for Positive Crankcase Ventilation. The PCV system is meant to burn oil that would normally drip onto the ground. This is the hose that travels from the crankcase to the intake. The EGR runs from the exhaust to the intake and improves gas mileage by sacrificing power. It forces the engine to consume the same air twice. The Mustang intake you're talking about has an intake designed to use the stock PCV system, not the EGR system. It might also use the stock EGR system as well, but from the thread it sounds like you're talking about the PCV system.

 

A popular aftermarket way to vent the PCV pressure without exposing the intake/combustion chamber to these gasses is a breather filter. A breather allows the use of an PCV-less system WITHOUT polluting the shit of the environment. A breather is literally a miniature foam or paper element filter mounted where the PCV tube would go, allowing the user to plug up the PCV inlet on the intake. Back in the day cars were designed to drip oil on a daily basis through the front and rear main crank seals. Once the government found out that this polluted the environment, they made laws requiring manufacturers to eliminate these "Oil leaks". Thus, the PCV system was born. By burning this oil, the engines consumed more oil, but dripped none onto the ground. This introduces more build-up onto the pistons and combustion chamber, but saves the environment from catastrophic damage.

 

Bypassing the PCV does slightly improve performance, but not much at all. The major advantage is reliability. The whole reason why drag and race cars don't have PCV or EGR systems is because of performance and reliability, and the fact that the government doesn't regulate them.

 

With a PCV system, the engine consumes oil, rather than dumping it onto the ground.

 

With an EGR system the engine consumes more exhaust gas, which has far less oxygen than regular air. Burning the same charge twice reduces the amount of pure oxygen a car consumes, but increases fuel economy.

 

Race applications avoid these systems because it reduced performance and longevity. If the engine consumes oil and carbon monoxide instead of oxygen the combustion gasses become polluted with a less-than-optimal charge, reducing power. Consuming oil also puts harmful deposits on critical parts. These PCV and EGR systems are designed for street-legal passenger vehicles, and help improve fuel economy and the environment by consuming oil that would normally find its way to the ground, by burning the same thing twice.

 

 

 

 

It is possible to avoid these systems. The EGR system is as easy as plugging the ports for the system. The PCV system requires the user to put a breather filter on the crankcase hose and plug the intake hose. The downside is legality. In other words, if the inspection station has to open the hood for any reason when you go to get an inspection, good luck getting a sticker.

 

 

 

Then again, I've been drinking since 9:00. Who knows? All I know is that most of the EGR systems I've ever seen were made of metal due to the heat involved. I've bypassed many-a-EGR/PCV system before and I've never seen an EGR that looks like the OP's pictures.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

As far as A/C is concerned.... It is a HP whore, but its a useful one. For a street/strip car I'd ditch the A/C, but for a daily driver its a necessity.

I don't remember ever mentioning pcv. And my intake does use the stock egr. Never did I say it didn't.

 

And that picture is of the egr solenoid. Not egr valve. And alot of egr valves have a rubber tube going to them. It's a vacuum line.

I don't remember ever mentioning pcv. And my intake does use the stock egr. Never did I say it didn't. Good copy and past job though!

 

He didn't copy and paste. Trust me this guy could write books.

Lol. I'll give him that

Now that you guys are done bitching about PCV and EGR valves....

 

 

Are you sure it's not the purge canister solenoid?

It very well could be....

Hayes Manual FTW.

 

Jeez, pick one up, and get your answer. Funny how some of the experts get it wrong, but the "redneck" mechanic book answers it a bit of these type of questions.

After looking at your photos on my pc instead of my phone. That is definitely your vacuum control solenoid for your egr valve.

As far as A/C is concerned.... It is a HP whore, but its a useful one. For a street/strip car I'd ditch the A/C, but for a daily driver its a necessity.

 

nice write up and thank you. btw for my buddy with the a/c. i knew him when i lived in fl and he still lives there. so since its his dd (no snow. nice to only need one car:cool:) he left the a/c components on just cause of the FL heat. and when you have 900 hp on a street car, a/c just gave him bragging rights for beating people in races while he was sitting in a car with the a/c on full blast.

When you go WOT, the AC turns off and robs zero HP. The only reasons to remove AC from a vehicle are packaging and weight savings. "It robs HP" is no longer a valid claim

Good point!!

in what cars? cause every car ive had the ac has stayed on when i punch it to get on the highway. and that is not true because he dynoed 75hp less when the ac was on. when they realized it was on they turned it off and ran it again w/o making any changes other than turning the a/c off.

Most modern cars disconnect the A/C clutch when you go WOT. All Subarus do.

 

If you measured 75hp difference between A/C on and off.... something else was going on. A/C uses about 3-15hp depending on size and stuffs.

well 3-15hp is understandable for a stock car or very lightly modified. but he was pushing close to 900, so it made sense that the higher the hp of the car, the higher loss of hp due to what is usually minor things.

no, that doesn't make sense at all. The AC isn't working any better/harder just cause the output of the engine goes up.

Mwiener2, your subie is bad ass!! That must be alot of fun to drive!!