creeve4

I am considering performing Blu's Air Silencer Removal on my 94 Runner, but I have a few questions/concerns. I cannot find any bolts that will fit pipe thread, so I can't use the brass fittings to connect my emission hoses.

1- What exactly do the emissions hoses do? Do I need them?
2- Can I use PVC or other plastic fittings to attach the emissions hoses to the pipe?
3- Can I use a flexible silicone tube instead of the 3" pipe?

^VooDoo^

1. The large hose that drops past your fan to a square box on the side of your airfilterbox, You can put a small aftermarket breather filter on that, But if your intentions are to keep the stock airfilter then leave that one alone as it is noisy.
1.2 the hose goinf from the valvecover to just before the throttlebody you have to have, But the connection can be anywhere between the throttlebody and the airflowmeter.
1.3 smaller hose that connects where the big hose in the front is to the silencer tube, This is your AC and power steering idle up, you dont really need it but I suggest you keep it for peace of mind, It brings your idle up so the engine doesnt labor when you turn the wheels or when you turn the AC on.
2. I personaly dont think using PVC or ABS in the engine compartment is a good idea, Its susseptible to heat and some patrolium chemicals, Some have had luck and it you prolly could use it to make a pattern.
3. If the flexible silicone gets hot will it become soft enough that the vacuum within it will suck the sides together closing the path up? I suggest you make sure its re-inforced type.

Put your engine type in your signiture pls.

Elvota

I think it would be wise to try and find ways to secure additional lines to your intake without using nuts of any sort on the interior of the intake. If those nuts vibrate loose, think where they will go next.

On my vehicle, I used the 3" gray plastic conduit Home Depot sells for underground electric. Comes prebent in 90 or 45 degrees. That stuff is very thick (1/4" easy), and I just threaded the brass fittings right in to the side to avoid any nuts on the inside.

I have used this intake for a year and it has survived fine through one AZ summer. I have changed some of the connections for various reasons, but the pic gives you the idea.



The rubber fittings are 2.5" to 3" sewer couplings... again from Home Depot. I realize a intake primarly purchased from HD might seem odd, but it works very well and I have no complaints. The under $25 price tag is nice as well.

creeve4

Thank you both. I decided to get a piece of 3" stainless steel tube bent at a local muffler shop. I used the flexable PVC couplings to attach either end. I used some JB Weld to secure the brass fittings for my hoses. I will post some pics when it's done.