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What's happens with this vacuum line and the solenoid? It was attached to? The plugs I bought may be 1 or 2mm too long and I'm afraid they bottomed out. They did come with a crush aluminum washer. We'll see when I crank it up.. I'll add 1 or 2 brass washers if needed.
Ok it was making me nuts after posting that last pic lol.
Pulled the solenoid and bracket, tucked the wires away.
I started my car last night after buttoning up the last few sensors and intake bellows (after intake manifold gasket replacement and very mild porting). The thing started right away and no leaks from the plugs in the exhaust manifolds. Interestingly, the engine did not produce the raw fuel emissions it normally does. I was able to be in the garage while the car warmed up (with the door open) without getting sick.
No SES after two starts, although I'm sure it's coming soon.
Greetings, what are the advantages and or disadvantages of this AIR pump removal? For that matter the EGR system too. I understand the environmental and legal implications all too well, im wondering what the performance/ seat of the pants difference is if any. I also love taking useless stuff off my cars.
Greetings, what are the advantages and or disadvantages of this AIR pump removal? For that matter the EGR system too. I understand the environmental and legal implications all too well, im wondering what the performance/ seat of the pants difference is if any. I also love taking useless stuff off my cars.
Neither Faceman, nor I have an EGR system. LT-4 engines did not need it. The EGR injects exhaust gas into the manifold under certain conditions: At light throttle and load...essentially while cruising, idle, warm up.
- A con is that some people say removal will increase pinging/detonation. I'm not a fan of that theory. Detonation that needs to be avoided is under heavy throttle/load. At that point, the EGR is not even engaged anyway.
-- Maybe people refer to pre-ignition. You should hear my Direct-Injected Silverado, especially when towing my boat. It pings like crazy
- Another con is increased emissions (the original intent of the EGR is to reduce NOx)
- A pro is that the EGR works by diluting the air mix (under light throttle/load) by injecting hot exhaust gas. Such gas also heats up the manifold. Remove the EGR and you will likely have a "less hot" manifold
- Another pro is that removing it clears space in the engine bay. I know it sounds petty, but working on these engines is difficult enough. Every bit of space cleared up is a plus.
As far as the A.I.R. system, it only activates during the first minute or so after a cold start up and a "warm" restart. It injects air into the manifold to get the catalytic converters to heat up (or light up) quicker. The converters only work at a certain high temperature. By getting them hot "quickly", they begin to reduce emissions quicker. What the quantitative difference is with and without is anybody's guess.
- A con is increased emissions
- Pro...have you ever changed the plugs in your car? If so, you know those tubes will give you hell! Once they are gone, things get a lot easier.
- Pro...slight weight reduction
- Pro...aesthetics. Engines are buried in all these "peripheral" systems
EDIT: Performance wise, there might be a minuscule advantage based on weight reduction and temperature reduction of the manifold. This is not the reason to do these deletes though.
Also, you would have to reprogram the ECM. You will get trouble codes for both systems.
Thank you, i appreciate the information. I have not done spark plugs yet, but when I do the AIR system will be trashed as well as the ERG system. I agree with you about the performance improvements to be minescule and most likely not at all noticeable, but I do like the idea of more room under the hood, and I ove taking worthless crap off my cars.
I started my car last night after buttoning up the last few sensors and intake bellows (after intake manifold gasket replacement and very mild porting). The thing started right away and no leaks from the plugs in the exhaust manifolds. Interestingly, the engine did not produce the raw fuel emissions it normally does. I was able to be in the garage while the car warmed up (with the door open) without getting sick.
No SES after two starts, although I'm sure it's coming soon.
Thanks, Faceman for getting me started on this!
Looks good, glad i could help. And yes ironically i do remember my car not having the same exhaust smell after removal of the AIR system. I noticed a major difference after swapping the factory plugs for some NGK’s.
Here you go...Dorman 02253 so you can remove the hose leading from the filter box. Less than $10 at Advance. Use the 3/4", which is the biggest cap. Fits perfect!
Here you go...Dorman 02253 so you can remove the hose leading from the filter box. Less than $10 at Advance. Use the 3/4", which is the biggest cap. Fits perfect!
Designer Imagines A Corvette That Looks More Like a Corvette Than the Corvette
Slideshow: A Jaguar designer's personal project imagines what a modern front-engined Corvette might look like if Chevrolet revisited the golden age of the Stingray.
