Evap as return line question

Frostbite · 07-23-2008, 08:22 PM

I am running my evap line as my fuel return. I was wondering how people who have ran this connect the evap line (5/16) to the stock return location (3/8) on the gas tank. I searched and found someone that said to use hose clamps and brass fittings, but I would rather not do that.

MeentSS02 · 07-23-2008, 08:32 PM

That is how I have mine hooked up (stock EVAP to the factory return location on top of the tank). Hang on and I'll get you some pictures.

Frostbite · 07-23-2008, 08:42 PM

That would be great! If I couldn't figure anything out, I was going to put a hardline fitting on the 5/16 line, run -6 braided to the tank, then a quick disconnect fitting to the 3/8. Figure it would be about 50bucks.

MeentSS02 · 07-23-2008, 08:52 PM

Here's what my engine bay looks like with the regulator:

Here is a close-up of the return line connecting to the EVAP hard line in the engine bay:

Here is the connection at the other end of the EVAP line:

And another angle (the black covering the braided lines is heat shrink tubing so that the stainless braid doesn't rub the crap out of the tank):

The other line you see in the picture above is from the feed line (it is a -8AN into the fuel filter, which uses the larger 3/8" quick disconnect):

I used all Aeromotive quick disconnects (which are $$$). The return is all -6AN braided lines and 5/16" quick disconnects to the hard line except on the top of the tank, where I did a 3/8" quick disconnect hooked to the -6 braided line. The feed side is all -8AN stainless braided line and 3/8" quick disconnects.

What you see cost me a bit more than $50, especially since each of the Aeromotive quick disconnects is about $35-40. But that's how I did it, and I like those quick disconnects much better than the Russel ones I've used in the past.

Shoaf85 · 07-23-2008, 11:15 PM

This is a set up I am considering for the time being how much power is this line set up capable of with twin walbros?

MeentSS02 · 07-24-2008, 06:33 AM

Quote:

Originally Posted by Shoaf85

This is a set up I am considering for the time being how much power is this line set up capable of with twin walbros?

Someone like Nasty N8 or Lonnie would have to answer that one...I think Speed Inc. has had good results with the stock hard line as a feed and the EVAP for a return.

Nasty N8 · 07-24-2008, 11:43 AM

I really rec. leaving the EVAP intact it is a vital part of your tanks operation.

Nate

Shoaf85 · 07-24-2008, 03:35 PM

I'm thinking of running a new feed line (-8) and then using my factory feed as the return.

MeentSS02 · 07-24-2008, 04:23 PM

Quote:

Originally Posted by Shoaf85

I'm thinking of running a new feed line (-8) and then using my factory feed as the return.

A lot of people do that too...I just didn't feel like running -8AN line the entire length of the car.

And FYI, my EVAP vents to atmosphere in the back of the car. You can definitely smell it on really hot days...that and no kitty cats