I just want to clarify the resoning behind attaching the two vaccum hose's/lines to the new intake pipe.Is it becuase you guys in the US have to for emmisions reasons?
I was just think of putting on a couple of those minature filters instead.it would make the Mod a lot easier for me.I dont need to worry about Emmisions testing.

also i found searching this topic a little frustrating becuase alot of the pic's are no longer availible through some of the links.:cry:

 

DR Z, BBBLUE........Anyone ?

 

Well I think You said it yourself in your first post. There vaccum lines so yes your going to need them.

 

Are they really critical to the engine management though,it apears the might just be there to recycle engine fumes back through the burn process.?

 

Pull one off and see what happens

 

If you are referring to a 95.5 - 97 5VZ (3.4) for some reason, one line goes to the PS vacuum, and the other goes to the FPR (fuel pressure regulator). Yes, the vehicle will run with them off, and yes the vehicle will run with them on. Better with them on of course.

Or, are you asking about specific vacuum lines on the 3VZ?

 

Yes just for the 3vze,I just dont see how the engine benefits from having the breather off the top of the valve cover blow back into it via the intake

 

It reduces emissions. The engine does not benefit, but humans do. It takes blow-by and runs it back into the cumbustion chamber for another "burn."

I actually put an open breather on the exact part you are talking about. All it did was make the interior of the rig smell like raw exhaust. I quickly put it back on. No HP gains.

 

it stalls ,but if you put your finger over the hole it goes back to normal.

 

That sort of answers my original question about it being done for emissions.
So what about the one that joins down at the bottom of the airbox.

 

When you disconnect it, it is drawing in Un-metered air which is causing it to stall out. IF you really feel the need to remove it, plug the one on the intake tube, and put a breather on the valve cover.

 

thats basicly what i was planning on already,im just not sure why nobody else does it.It would make the ISR mod so much simpler.I think i will still but the line on from the front,by the airbox.

 

Maddog look around for some rubber grommets to reconnect them lines into your new ISR tube. My tube is fiberglass and I just used these little 90 degree fittings that the hoses would go over. You drill a hole and insert the rubber fitting and then just jam the fitting into the rubber grommet...airtight seal.. Here is a pic that sorta shows mine.

 

[QUOTE=UKMyers]Maddog look around for some rubber grommets to reconnect them lines into your new ISR tube. My tube is fiberglass and I just used these little 90 degree fittings that the hoses would go over. You drill a hole and insert the rubber fitting and then just jam the fitting into the rubber grommet...airtight seal.. Here is a pic that sorta shows mine.

Got a pic of the gromet by it self.how did you attach them in the hole?
Also most of these pics have a slightly differrent front vacuum hose to mine mine is joined on to a few others down beside the bottom of the airbox,see pic
http://img39.imageshack.us/img39/2366/DSC00593.jpg

i was plannig on just using longer tube to hook this up to the intake.

 

Just did this myself. I put a elbow and grommet into my new intake tube from the valve covers and a breather filter on the vacuum line that used to go to the air box. I don't know if I like it a whole lot though since the breather filter sits just behind the fan and I have noticed that since I put splitfire platinums in along with the ISR Mod and the air box mod the engine seems to radiate a whole hell of a lot of heat under the hood. My core temp seems to be fine though as my gauges all look normal. I may just tap another line into the intake tube for piece of mind.

 

Thanks Trd
I may well just do the same & see how it goes.

 

bump ,i see big bad blues online so i thought i might give it a bump.