" In hatchback vehicles in all
classes, a firewall must separate the driver's compartment from the fuel cell."


Give me some pics of you setups or ideas. I have done a search and cant find any pics.


Modified by 30psiCiv at 9:40 AM 4/17/2004

 

 

Is that just a flat cover?

 

No, there is a 1.5 inch raise on each side, and a bracket underneath it to suspend the cover, then insulation all around it, including the little swingup door thats kinda hard to see right now

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by SIXTYdashONE &raquo;</TD></TR><TR><TD CLASS="quote">No, there is a 1.5 inch raise on each side, and a bracket underneath it to suspend the cover, then insulation all around it, including the little swingup door thats kinda hard to see right now</TD></TR></TABLE>

that is according to NHRA rules, right? I was told that if you are using an aluminun cell the cell itself is all the "firewall" you need to seperate you from it. that is the purpose in using an aluminum cell opposed to a plastic one or one designed to be used with a safety "can"

 

Not too sure Gordon, i used it anyways

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by MackSpeed-616 &raquo;</TD></TR><TR><TD CLASS="quote">

that is according to NHRA rules, right? I was told that if you are using an aluminun cell the cell itself is all the "firewall" you need to seperate you from it. that is the purpose in using an aluminum cell opposed to a plastic one or one designed to be used with a safety "can"</TD></TR></TABLE>

So you are saying that no cover is needed? That sure would same me some time.

 

has anyone put a plastic fuel cell in the rear of a hatch with a shield blocking it from the driver.

 

Yes there is one in the back of our integra.

 

Probably doesn't matter now, but why did you guys put the cell in the rear anyways? Why not put it up front to help with traction?

 

Turbo 4 has to have a 5 gallon cell. Where ya gonna put that under the hood? You got one I will buy it.

 

Ahh didn't realize it had to be so big. I can make you one that fits behind the bumper.

 

you guys need to stay current with rule updates

"NDRA 1.5/1.6/1.7/1.8 updates
All street/sportsman classes: Fuel cells allowed, 5 gallon minimum is changed to Fuel cells allowed, no fuel cells mounted under the hood of cars, no fuel cell size limit."


so to answer tony's question. there is no size minimum,.. but the cell has to be in the car. i prefer it in the trunk that behind my seat

 

No fuel cells have to be in the trunk or the hatch area. We are not allowing them in the front of the car.

 

Will an aluminum cell in the spare tire area need a cover?

 

Tracy, that all refers back to the NHRA guidelines on fuel cells.

 

I cant find a clear solution in the NHRA general guidlines. THey show some pics but never anything clear on a rear mounted cell in a hatchback. Does anyone know the answer: Does a rear spare tire well mounted aluminum cell need a cover?

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, fuel-distribution blocks, etc. must be
located at least 6 inches forward of the flywheel/bellhousing area
on rear-wheel-drive (RWD) cars, and on opposite side of
flywheel/bellhousing area on front-wheel-drive (FWD) cars. Fuelpressure-
gauge isolators, with steel-braided line, may be mounted
on firewall.
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 chrome moly
or .118-inch 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 car
body. A positive-locking screw-on fuel-tank cap is mandatory on all
cars. Insulated fuel tanks prohibited. When used, fuel cells must
have a metal box protecting the part of the fuel cell that is outside
of body lines or trunk floor, excluding hose-connection area in rear.
Non-metallic fuel cells or tanks must be grounded to frame.
Lines: All non-OEM fuel lines (including gauge and/or datarecorder
lines) must be metallic, steel-braided or NHRA-accepted
“woven or woven-pushlock.” A maximum of 12 inches total (front to
rear) of non-metallic or non-steel-braided hose is permitted for
connection purposes only; individual injector-nozzle fuel lines are
excluded. Fuel lines (except steel-braided lines) in the
flywheel/bellhousing area must be enclosed in a 16-inch length of
steel tubing, 1/8-inch-minimum wall thickness, securely mounted
as a protection against fuel-line rupture. Fuel lines may not be
routed in the driveshaft tunnel. NHRA-accepted woven or wovenpushlock
fuel lines: Aeroquip FC300, FC332; Aeroquip Star Lite
200; AQP Socketless; Dayco Imperial Nylo-seal tubing; Earl’s
Prolite; Gates LOL Plus; Goodridge 710; Russell Twist-Loc 836 and
XRP HS-79. Contact NHRA for updates.

 

I'm pretty sure it just has to be fully enclosed in an aluminum box.

 

Ok, but does an aluminum cell qualify as an aluminum box?

 

no

 

i am confused as well... i have heard from a few sources that aluminum cell's do not need further "protection"

lets try to get to the bottom of this one.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by MackSpeed-616 &raquo;</TD></TR><TR><TD CLASS="quote">i am confused as well... i have heard from a few sources that aluminum cell's do not need further "protection"

lets try to get to the bottom of this one.</TD></TR></TABLE>

I totally agree. WHo knows the answer?

 

Just got off the phone with a guy at NHRA. He said "any fuel cell, no matter its material, does require a cover/bulkhead of some sort to prevent fuel spillage from rupture"

There is the answer guys.