braided fuel line/ nhra legal ??

i may have screwed up, i ran braided fuel line from my tank in the rear of the car up to the motor, is this line nhra legal? the rule book says only so many inches of rubber line, this line is steel covered rubber.... thanks

 

Perfectly legal.

 

thanks to the h.a.m.b. again........

 

It's legal, totally un-necessary, but legal.

The rule applies to straight rubber fuel line.

 

Youre not right in that configuration in the picture. All lines, pumps, fittings, etc. must be within the confines of the frame, not OUTSIDE the frame if i recall.....braided ok, no hose clamps (worm drive) on braided, must use the recommended fittings

 

Yea, I just took a better look and I believe you're correct.

Another thing I noticed that also will not fly are zip ties holding the line. That's not secure.

You should also have an 80-100 micron filter prior to the pump and a 10 micron filter after the pump.

 

".......must be outside of the driver's compartment and within the confines of the frame and/or steel body"

 

oh hell..... well better fix it now than after a tow to the track.. thanks a lot

 

it is in the confines of a steel body..... now what ??

 

zips ties a no no, gotcha , are the 2 filters required ??

 

If your fuel lines are protected by steel body structure (in event of rollover) you should be fine. Per NHRA again, brake lines must be routed on the outside of the frame. Both need to be protected from driveline failures

 

If it were me, I think I'd get a current rule book. You don't have to deal with NHRA if you don't want to, Jeg's sells them.

Then if I still didn't understand, I'd get in touch with NHRA's tech department. They've been helpful with any questions I've had.

National Technical Services Representatives:
Pat Cvengros: 626-250-2485, Monday-Thursday 8a.m.-5p.m., Friday 8a.m.-noon (Pacific Time)
Bruce Bachelder: 317-216-4869, Monday-Thursday 8a.m.-5p.m., Friday 8a.m.-noon (Eastern Time)
Email: TechDL@nhra.com

BTW, I'd probably use E-mails and keep copies of their replies for my files.

 

Yes! The tech guys at the NHRA are very much willing to help.

As far as the current rule book goes, you can get a FREE IHRA book here: https://www.ihra.com/Compe***ionNews/2012/11/30/1/

Both IHRA and NHRA pretty much follow the same rules.

 

Make sure you run a good ground strap between the engine and ch***is
even if you have solid motor mounts, I have seen more than one occasion
where the braided fuel line was trying find ground and sparking.

John

 

Not only helpful but they are the same guys that will send you home, well maybe someone that they know, if they tell you it is good you are golden. be sure and get the fellas name that you talk to always a good idea to name drop in a pinch.

The two filters mentioned are not a technical requirement. The guys at the track don;t care if you run any fuel filters at all. Those filters are what you keep you from lunching a fuel pump or clogging a carby, or both.

Remember a day at the track that is wrench free is a good day.

 

brake lines on outside of frame ? fuel line on inside ?

 

all good info that i will use thanks guys

 

Ha Ha!

A day anywhere that is "wrench free" is a good day!

 

You bet your sweey bippy, whatever a bippy is.

 

Pretty much outside the frame or in a 1/8" wall tube where it p***es the flywheel. Inside everywhere else. Not in the driveshaft tunnel or drivers compartment.

 

I always get caught on the tubing where it p***es the flywheel thing. You would think that I would remember that one.

 

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) vehicles, and on opposite side of
flywheel/housing area on front-wheel-drive (FWD) vehicles. Fuel
pressure gauge isolators, with steel braided line, may be mounted
on firewall.
Tanks: When permitted by cl*** 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 .058 chromoly or .118
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 fuel cell that is outside of body
lines or trunk floor, excluding hose connection area in rear. Nonmetallic fuel cells or tanks must be grounded to frame.
Lines: All non-OEM fuel lines (including gauge and/or data
recorder 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 and motorcycle
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. It is mandatory that fuel lines p***ing
supercharger drive belts be steel braided, NHRA-accepted woven
or woven-pushlock, or be enclosed in protective steel tubing. A
current list of NHRA-accepted woven or woven-pushlock fuel lines
is available on NHRA.com. All NHRA-accepted fuel lines must use
ends that are specifically designed for the type of fuel line being
used. No hose clamps allowed on NHRA-accepted fuel lines.
Pumps/Valves: Cars with non-OEM-type mechanical fuel pumps
must have a quick-action fuel-shutoff valve within easy reach of
driver and located in the main fuel line between the fuel tank and
the carburetor and/or injectors. Fuel recirculation systems not part
of normal fuel/pump system prohibited. All cars in Stock, Super
Stock, Compe***ion, and Pro Stock must be equipped with a
positive-lock drain valve located between the fuel tank and the
carburetor(s) or fuel injector to facilitate removal of fuel samples for
fuel-check purposes.

 

Thanks Hotroddon good info to have.

 

that much braid won't fly here 6 inches thats it braid has teflon or rubber on the inside and will eventually fail

 

Won't fly Where?

 

If they are an NHRA or IHRA track it will.

 

wow 6" ? it would be hard to get get steel line from the tank to the pump to the filters to the carbs with only 6". must have better rules than NHRA

 

it used to be 6 inches now its 12 inches total read above yea we have tough tech guys down here in south florida

 

Teflon is quite durable, takes all fuels, alcohol and nitro, not to mention brake fluid.Who's running your race track, our government?

 

its been about 20 years since i last raced at track but back then it was rick moroso