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fuel cell

5.1K views 9 replies 7 participants last post by  KillaCoupe  
#1 ·
I'm putting a fuel cell in my 87' sedan.What is the best size and brand to install in the trunck.Do you think a fuel sender unit is a good idea?
 
#2 ·
why do that when ur stock gas tank works great, once u start putting a fuel cell in, u have to have a firewall between u and the cell, is ur car efi or carb. if it is efi then u have to buy a in line fuel pump, all new lines...... lots of money, trust me i had one in my car but since i ran outa money i put the stock tank back in.
 
#3 ·
Choda, you're joking, right?

Anyways, for a street car, 10 gallons would be the minimum I'd use. Track car, much less. RCI, Triangle Engineering, and many others make them.
 
#4 ·
It all depends on what car they are going in. On my Tbird, the rear sway bar prevented me from dropping mine down flush with the froor. Most Stangs do not have this problem. Here is the full step by step install on mine. I will be moving the battery to the trunk, and using a large one, so will firewall the trunk.

Image


Full details:
http://www.qsl.net/wd4ngb/birdworka2.htm
 
#6 ·
You still need a firewall in a coupe...the back seat/deck lid do no pass tech for a firewall. Check a NMRA rule book...you have to seal off the trunk from the cockpit.
 
#7 ·
Jeff's right, for an NHRA track that has stringent tech, you need a firewall. I have one in my coupe that has the fuel cell. I used an aluminum unit that holds 8 gallons, I believe. It looks cool and fits nicely in the spare tire well. Strapping the rear of the car down to a trailer is a much more pleasant experience now that I don't have to work around the gas tank.
 
#9 · (Edited)
1.5 FUEL SYSTEMS

Location: All fuel tanks, lines, pumps, valves etc., must be outside of the driver's compartment and within the confines of the frame and/or steel body. Cool cans, in full-bodied cars, must be mounted a minimum of 6-inches (15.2 cm) forward of firewall. Fuel blocks must be located at least 6-inches (15.2 cm) forward of the flywheel/bellhousing area.

Tanks: When permitted by class regulations, fuel tanks located outside body and/or frame must be enclosed in a steel tube frame constructed of minimum 1 1/4-inch O.D. x .065-inch (31.8 x 1.65 mm) chrome moly or .118-inch (3.0 mm) mild steel tubing. -->> All fuel tanks must be isolated from the driver's compartment by a firewall completely sealed to prevent any fuel from entering the driver's compartment. <<--All fuel tanks must have a pressure cap and be vented outside of body. A positive-locking screw-on fuel tank cap is mandatory on all open-bodied cars. Insulated fuel tanks prohibited. When used, fuel cells must have a metal box protecting the part of the cell which is outside of body lines or trunk floor, excluding hose connection area in rear. All non-metallic fuel cells must be grounded to chassis.

7.5 FIREWALLS

Each car in competition must be equipped with a minimum .032-inch (.8 mm) aluminum or .024-inch (.6 mm) steel firewall, extending from side to side of the body and from the top of the engine compartment's upper seal (hood, cowl, or deck) to the bottom of the floor and/or bellypan. Firewall must provide a bulkhead between the engine and/or fuel tank and driver compartment. In certain instances fiberglass, carbon fiber or other composites may be used. See Class requirements or consult FIA. Use of magnesium prohibited.

Yep, the back seat does not cut it as a firewall, still need one.


Full NHRA Rules
http://www.qsl.net/wd4ngb/nhrarules.htm