I weighed everything but the pipe that loops behind the engine and it was 8lbs.

 

Good guess or what!! That will drop your ET alot!!!

BC

 

That bolt in the back of the head was hard to get to but you can get a box end wrench on it and get it off. It's all done by feel since you can't see it. It did seem that the metal pipe going to the passenger side with all its twists and bends wouldn't come out without the intake manifold being taken off - that is until I found my hacksaw and that took care of it nicely. I took the pump and all the connections/parts off and weighed everything at 8 pounds. I just didn't like it in there and it looks cleaner and makes it so much easier to get to the plugs.

 

I understand the temptation to remove that stuff.

When I was 25 years younger, before the days of emission testing, I removed all emission equipment off my 1981 Corolla's carburated engine, and also replaced the cat with a bypass pipe from Warshaufsky's (spelling on W... is bad) That was a couple years after I bought the car new.

I kept everything in a box and threw it up in the attic. Two years later, there I was with the service manual, installing it all back for "E" testing. My 2-year on, 2-year off experiment showed me there was no noticable change in fuel economy, one way or the other. The 20-25 pounds of stuff in weight reduction made no point. And servicing the car was no big deal with or without that stuff.

After that experience, I leave everything alone. These days, with everything electronically controlled and monitored, I cope with the clutter.

If you just have to remove stuff, at least do it in a way that allows you to reinstall it if you change your mind. If you later sell the car, you'll do better with the sale with everything installed again..

Don't our Vettes have 100k plugs? If so, you hassle with the interference of the Air Injection system once in a life time.

If your mission is weight reduction, consider this. I recall years back a guy I worked with stripped his Alpha Romeo of everything non-essential for weight reduction in autocrossing. It was one sad looking car. The fellow was carrying a good 40 pounds in excess body weight. Understand my point?

Ron

 

I understand your point as all of it has been covered before in other threads on this forum. However, not everybody thinks the same as you do (like about plugs for instance). Everybody is different so what works for you doesn't necessarily work for the next guy because his goals are different. You sound like the "leave it alone and dont mess with it type" whereas I had made big changes to mine the first four weeks I owned it. You're happy with yours and I'm happy with mine but the reverse would never be true it sounds like.

I didn't want to cut mine out so I could put it back just like you said. However, I had to balance that with (1) I'm not planning on selling the car, (2) I wanted it out, (3) I didn't want to go through the hassle of removing the intake and (4) I can buy another one if something happens that I need it later. The main point was #2 to me - the reason is insignificant - I just didn't want that stuff on there. It's just me but I'm happy.

 

I don't mean to steal this thread but I am also going to be doing this mod this weekend and wondered:

How is the car on start up, is idle affected until open loop ends?

I did this to the LT1 fbody I had 5 years ago, and didnt notice anything negative and WOW it was much easier changing the plugs without all that piping off the manifolds.

 

I did it on my WS6 (LS1) and my Z06 (LS6) and didn't notice anything. It is only used at start up to supply air to the exhaust manifolds to aid in the complete burning process (emissions concern) until the cats heat up and take over. I first turned it off so it never came on (with HP Tuners) before I took the plunge. You will get codes and need some way to disable them - for me again it was HP Tuners.

 

The only reason I did it was for easier access to the plugs.