Gas Tank Venting
Thread Starter
Burning Brakes
Joined: Apr 2004
Posts: 792
Likes: 1
From: Stanfield NC
Gas Tank Venting
My car, an 88, is about 99% track car with very minimal street driving. I would like to remove the charcoal cannister and all related polution devices. The Cats and air pump were removed some time ago.
The gas tank has a vent line that runs along the left side frame to the front of the car. I would like to simply vent the gas tank to the ground, maybe somewhere in the area of the left rear wheel.
Has anybody done this modification and is there any thing I am not seeing or any problems I will be creating? I don't see anything in my GM service manual that raises flags for me but there may be something I am overlooking.
The gas tank has a vent line that runs along the left side frame to the front of the car. I would like to simply vent the gas tank to the ground, maybe somewhere in the area of the left rear wheel.
Has anybody done this modification and is there any thing I am not seeing or any problems I will be creating? I don't see anything in my GM service manual that raises flags for me but there may be something I am overlooking.
Team Owner
Joined: Dec 2000
Posts: 90,675
Likes: 304
From: SE NY
Cruise-In II Veteran
Before the smog nazies took over the tanks were vented at the gas cap. That way the vapors would dissipate upward into the atmosphere.
I don't know if you would encounter any safety issues with venting under the car???
I don't know if you would encounter any safety issues with venting under the car???
Instructor
Joined: Jun 2005
Posts: 119
Likes: 0
From: Ringgold Georgia
I converted my 84 to a carb. I removed all of the smog, put a return style fuel pressure regulator, removed the charcoal canister and put a small filter over that return line. It is still in the front fenderwell. No problems with 6 months of weekend useage.
