Since I a working in the trunk...Battery mounting.

I didn't know about the grounding of the cell. The rest I have covered.

 

when you say sealed trunk ,do you mean from the passenger compartment or from the rest of the world?

 

from the passenger compartment . . . the rest of the world will be safe I'm sure

 

Let me elaborate on the grounding. Rules say that non metallic fuel cells must be grounded to frame.

 

I'm confused [Some will say that's nothing new, but I digress]. How can you ground a non-metallic fuel cell, that can't conduct electricity, because it's non-metallic?

 

It is grounded with a wire to prevent static dischare (called a spark) that wmight be a fire hazard.

 

I grounded mine to the ring going around the fill cap. There's about 10 small bolts going through the rings holding the cap.

 

Here is a picture of the grounded "plastic" fuel cell. There is a wire from the metal ring on top of the cell, to the roll cage.............which is mounted to the body...................etc.
This tech has always been inforce..........................at least for the past 20+ years.
As for a vent, I have a return line from the pump which has been good enough for Tech. Also see the external electrical "cut off" switch and the firewall between the trunk and passanger compartment is metal.
We will see if this will pass NHRA tech in about 3 weeks.

IMHO

 

Duh!

Aluminum tank, held to the car with steel straps and braces...I don't think it can be grounded any better than that!!!

I guess I have THAT covered, too!

 

I gotcha! You are grounding the metal parts on the non-metallic cell. I fully understand the need for no static discharge of electricity, don't want a bomb in the trunk.

 

i was thinking about putting a fuel cell in my trunk on my 73.. what is the best size of cell to use ??

 

If you are using it on the street, I'd keep the stock gas tank. You may want to use the trunk space you'll lose. If you are building a race car I use a 5 gallon cell.

 

plastic will build a static charge...
like the seat covers in your truck, they are... non-metallic...but when you slide out and touch the door, you get a shock...
slide your feet on...non-metallic...carpet, same thing happens...
they suggest not putting gas cans in the back of a truck that has a plastic bedliner, it will build static electricity and spark when you touch the can...

 

...another good example...
remember the old...clear plastic seat covers...they required a grounding strap that drug the ground under the car...without it, when you slid across the seat, your hair would stand up on end and anything you touched would cause sparks to fly.

......

 

Another old thread...

I use a grounding strap on all my daily drive vehicles dragging on the ground to reduce that shock.