where does the nipple from the diagram connect to?

i just realized on my car that there is a short 6" rubber air line connected to the diaphram actuator nipple to open the ports - and the other end of the air line is not connected to anything i jerry rigged roughly 3 psi of air to the 6" air line, and the ports open. i ran the car and opened the ports via the air connection i jerry rigged. everything seemed ok.

how can my ports be opening? what is it suppost to be connected to? anyone have answers for me?!!

thanks..

 

That line is suppossed to go on the split air tube if you have the stock cats or equvalent. If you no longer have it then you will need to rig them up to open via another method.

 

i have a precat and then a main cat with a line/nipple on it but nothing connected to it.. should i run a line from it to the diaphram input?

 

bump

is there possibly another connection leading to open the diaphrams that i am not aware of? i can only see the one which opens both diaphrams (as i tested).. is there another?

what should i do

 

If you have an open line attached to the actuators then they won't be. You're probably down 20+hp as a result.
It sounds like the split air pipe has been removed. Did you do that? You need to find a way to get exhaust pressure to that open line, or rig up some other method (e.g. air pump).

 

absolutely NEED to? or can it wait a month or so until i get a 12v compressor (see silverrotor's fully blown electric auxiliry port write up)

i plan on doing this.. i do realize im loosing alot of hp as it is now..

thanks for the help ..

while dinking around with stuff and a small regulator, a tossed some extra brass on the little regulator, and, now its a perfect port opener that hooks to a regular air compressor (for air tools).. basically now i have an air tool that has a nipple to connect to the port actuators..

i ran the car (sitting still, but revving) and revved to 4k, had a helper open the ports with the tester

all seemed well, i was REALLY worried about carbon buildup - as i have been driving it over a month WITHOUT the ports opening..

am all i losing is horsepower and fuel economy? or am i causing big damage (what im getting at is, should i drop EVERYTHING and setup port actuators, or can it wait at the expense of horsepower / fuel economy?)

 

You probably are not doing any major damage to them unless you mean carbon build up on them. You are just waisting fuel and power for now.

 

It's been claimed by many on this forum, that the lack of a split air pipe to the catalytic converter, results in the early demise of the catalytic converter. That's what they say. You seem to be missing this vital piece of pipe/hose.

 

Yes from what I understand this pipe provides fresh air to the catalitic converters for their proper functioning. If not present then it is safe to assume they will be starved of air and will clog in a matter of time.

 

im pretty sure they are clogged already.. at least the precat is..

i dont really care about the cats.. im ditching them in a matter of days.. anyways, im just concerned what long term effects of not having your ports open does..

im sure (since its just less air) that i just lose horsepower, and the computer may expect them to be open and is dumping more air in..

like i say i was really worried about carbon buildup as ive read here before, someone opens their ports that havent been open in xx months, and then POW the carbon falls in and reaks havoc.

i open them while revving the engine, and it didnt make a difference.. well it did, but its not like it ran like it dumped a bunch of carbon inside..

i was just curious to know if i can let this slide for another 3 weeks or a month tops until i can get a 12v air compressor to open them (via rpm switch)

 

I don't see any harm in it. What I suggest you do is clean the sleeves and holes with some carb cleaner. That will dissovle most of the buildup they get in them.

Santiago

 

You let It slide all this this time so a couple of more weeks shouldn't hurt It.

Awhile at It, do your self a favour and simutaneously take out your Fuel Injectors and get them machined cleaned and take the liberty to take off all the Manifolds and scrape off all the carbon found In them. Especially the Lower Intake Manifold. I did this, along time ago, and scraped off half a cup of carbon off.

This, In conjunction with cleaning the FI's, resulted In serious HP. Or essentially, a much needed alternative clean up/ tune up that was very evident.

Be sure to get new Upper/Lower Grommets and O-Rings for the FI's and after scraping off the carbon, within the Manifolds, allow Castrol Super Cleanto soak In their for a short while followed by a rinse and dry.

FWIW, get all new Gaskets for the Manifolds (esp the Metal Gasket that mates the LIM to the Engine). Fini!

 

i might do this over a weekend later this month but that would put the car out of commission for the weekend.. im not too familiar with how the intake system comes apart...

i could you use your help silverrotor! and that replacement pipe for the precat would be helpful too.. pm me with how much you want for the pipe.

 

Clogged with what? Not flaming or anything. I have heard this before and can't understand it. I asked my resident chemical engineer and she said the cat converts one form of gas to another. Neither gas could clogg it. Carbon could but the cat does nothing for the carbon. Am I missing something??

 

Well from what I understand the cats without fresh air can not do their job properly and the unburnt fuel in the exhaust will eventually clog the cats. I am not sure how they work exactly but I have seen threads on here about clogged cats and such. If this is not the case then I see no purpose for the split air tube to even be put in the car since the only other function is for the auxilary ports in S4 cars but as far as I know the S5 has it too.

 

The computer doesn't control airflow, the engine just sucks in whatever air it can. The ECU measures that airflow with the AFM and injects the correct amount of fuel. With the ports not opening, the engine simply can't breathe as well at high revs, so you'll just be losing power, that's all.

 

ok - note to self - dont race anyone.

ill just wait until i can get an electric aux port opener then.. thanks guys..