bo0oost

In my engine bay, there is a rubber hose/tube leading into the whisper lid. It's coming from the driver side fender area. What is it? Do I leave it? Remove it? Plug it up?

Thanks <img border="0" title="" alt="[Wink]" src="gr_images/icons/wink.gif" />

DinoZ

iTrader: (5)

That's your fresh air supply for your air pump.

RPM WS6

iTrader: (3)

Buy a breather for it since there is no provision for it in the lid. Then just zip-tie it off to the side somewhere...

DARK AGE 53

Although this isn't on a LS1 the air breather looks like this, you can get it from AutoZone.

<img src="http://groups.msn.com/_Secure/0MwAAACcRr56gb1onzNrkf4hQGfnbaD00ParFGWL0XmtxPhCg7 ELG3DjIGAo8yf5dIP9jBqw0dDH9UQ*7cgcZYw/C12.JPG" alt=" - " />

bo0oost

Where does this tube go on a LS1? On the driver side fuel rail cover area?

Does anyone make something to block it off from the whisper lid?

Any performance loss from just leaving it?

Also, what air pump? What's it do?

Thanks!

DARK AGE 53

</font><blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr /><font size="2" face="Verdana, Helvetica, sans-serif">Originally posted by bo0oost:
<strong>Does anyone make something to block it off from the whisper lid.</strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">I guess I'm not understanding you, are you saying it's already attached to the lid?

bo0oost

Yeah, the tube goes into the lid on the driver side...

DinoZ

iTrader: (5)

Since it already goes to the lid... leave it alone. It is the fresh air supply for your air pump, which pumps air into your exhaust, to feed your cats. If you didn't have cats, you wouldn't need the air pump. You could also put a filter breather on it, like mentioned above, and block off the little tube on the lid, if there's one.
I have the Direct Flo, so there is no place to connect the tube... it comes with a breather.

bo0oost

Pumps air for the cats? Why?

Yeah, I have hooker longtubes, and offroad 3" ypipe on the way, so I won't have cats, but I might have a cat added on the straight section.

Any suggestions? <img border="0" title="" alt="[Smile]" src="gr_stretch.gif" />

RPM WS6

iTrader: (3)

Since when do Whisper lids come with an attachment for that tube? Maybe you made one yourself or you bought it used and somebody else made one? They never used to come with any provision for the tube.

I’m just curious because my three year old Whisper lid does not have one. I had to buy a breather. <img border="0" title="" alt="[Smile]" src="gr_stretch.gif" />

RPM WS6

iTrader: (3)

Oh, to answer your question, they it pumps air (oxygen) to the cats to heat them up faster, thus reducing cold start emissions.

bo0oost

I have all the SLP options from the factory, including the SLP lid, which has the attachment area for the air pump.

RPM WS6

iTrader: (3)

Ahhh... that explains it then. I was wondering because in your first post you said Whisper lid not SLP lid <img border="0" title="" alt="[Smile]" src="gr_stretch.gif" />

Anyway, just leave it as it is then. You will gain nothing by putting a breather on it.

bo0oost

OK, will do.

The SLP lid seems pretty smooth underneath, I'd assume it would do me no harm leaving it, and not changing it to another lid, right?

Or is there one way better?

RPM WS6

iTrader: (3)

SLP lid is just as good as any other. You will gain nothing by getting a different lid. <img border="0" title="" alt="[Smile]" src="gr_stretch.gif" />

bo0oost

Thanks for all your help!!