Are those lines off my intake manifold called intake runners? Also what do they do, and do I need them if I put headers on? Thankyou all.

 

Lines? Do you mean the vaccum lines?

 

Dude I dont know, I dont think they are vac. Lines, I do know that hey go to my cat. They are those little steel lines.

 

Oh your talking about the air tubes on the exhaust manifolds, Do you need them or not, do you have to pass emissions in your state, if you do you will need them, you can order headers with or without them.

Kevin

 

ok your tpi unit consists of throttle body...which bolts into your plenum....the intake runners are next and they bolt to the plenum at the top and the intake manifold at the bottom....

 

-Kevin good man...

I dont have TPI, or TBI, unfourtinutly(SP) I know.. I have a carb..

 

You are talking about these lines arent you?

edit: good deal then

 

Exactly what Iam talking about. You see I blew a ring this weekend and I will be pulling the engine, and I thought that I would throw a pair of headers in, and I saw those lines a while ago and I was not sure if they would give me any trouble or not. Is that larger tube the plenum? What does that do? Stupid question Iam sure however if I dont ask I will never know, right?

 

the larger pipe is the exhaust manifold itself. in this pic im posting #1 is the Plenum #2 is the intake runners and #3 is the throttle body on the TPI.

 

Oh I didnt know that was called the plenum. I think that I was on you web page today, are you trying to sell you car?? for like 9000 or 12000?

 

No im not trying to sell my car, ive seen another car something like mine for sale somewhere tho.

edit: what kind of headers are you wanting to put on.

 

I was thinking Hooker, do you have any suggestions?

 

Only ones ive used is the Hedmans, they seem fine for my car, definitely better than the stock setup anyway you go. Thats the way i see it.

 

thats very true. did you notice a power gain, did it sound better?

 

I noticed a definite power gain in upper rpms, and alot better sound.

 

Cool Thanks man..

 

NO Prob

 

Ok it's become clear that you don't know a lot about our engines, so it requires a careful explanation. I don't mean that in a rude way at all, though! I was there about a year ago. Spending a lot of time here will make you an expert REAL quick.

Many guys get rid of those steel tubes completely. They are a part of a system called A.I.R., which reduces emissions. Was you car stock with TPI or with your carb? I didn't think AIR tubes were used with carbs, but I really don't know. If they're not hooked up to anything right now at all, weren't before, and you were able to pass inspection this way (if necessary in your state), then ditch them.

If you have a moral problem with pollution or you have state inspections that require a smog test of your car, you shouldn't touch the tubes. Also, if this is the case, and you're set on getting headers, make sure you get headers for your specific application that have these tubes as well. It may be possible to pass the "sniffer" test without the tubes, but I don't know. If you have to take a similar test to pass a required inspection, I would recommend leaving them alone. That is, unless you've already passed one and they're not hooked up.

 

jamesbob02-

I did not know that were the intake manifold on a carb engine was called a plenum, nor did I know that the runners were called intake runners. I dont really care too much about tpi cars, due to the fact that my camaro was carbed, so I never had the need to learn this stuff. I dont see how you can make such assumtions about my lack of knowledge about these cars through this post, but hey man whatever you say.

 

The hedmans fit well and the headers themself seem pretty decent, but the y-pipe has a single 2.5 inch pipe with a very obstructive looking collector. I wish I would have gotten the edelbrocks. I have a friend with them and the y-pipe has a really nice collector and 3 inch pipe. I think the hedman y-pipe was made to hook up to the stock cat better.

 

You misunderstand. I was merely just trying to help as much as possible. I said its clear that you don't know about our engines (TPI), which you proved. You referred to an exhaust manifold as an intake, asked if the AIR tubes were intake runners, and asked if the larger part of the AIR tubes was the plenum. According to that stuff, I didn't make any assumptions at all - it was clear you didn't understand.

Don't take it personally. I don't ever reply to make someone look stupid, only to help.

I don't know if you read all of what I posted before, but basically, I don't think those tubes are used on your application. If they're not hooked up, ditch them. You'll love the extra space, especially when changing spark plugs!

 

when I saw, our engines, I thought you ment all 3rd gen engines all togeather, bad assumption, I reason I refered to the plenum to an intake manifold was because on my old camaro the intake manifold sit right there. I agree with you as far as it goes to changing your plugs, what a pain, its like death trying to ge in there, under the assumption you have the same fireing order as I had, The 8th cylinder absolutly sucked taking out, A=and I have 2 cut to prove it!!!

 

Man I cut up my arms BAD trying to get to that #8! You have to be quite creative to do it. So easy now without the tubes.

 

Thats for sure!