Ameer Randolph
The NHRA has strict rules regarding the routing of fuel lines. All NHRA-accepted fuel lines must use ends that are specifically designed for the type of fuel line being used, and no hose clamps are allowed. Fuel lines (except steel braided lines) in the flywheel/bellhousing area must be enclosed in a 16-inch length of steel tubing, with a minimum wall thickness of 1/8 inch, to protect against fuel-line rupture. Fuel lines may not be routed in the driveshaft tunnel.
| Characteristics | Values |
|---|---|
| Fuel line type | Woven or woven-pushlock |
| Fuel line ends | Must be specifically designed for the type of fuel line being used |
| Hose clamps | Not allowed |
| Non-OEM fuel lines | Must be metallic, steel braided, or NHRA-accepted woven or woven-pushlock |
| Non-metallic or non-steel braided hose | Maximum of 12 inches total (front to rear) permitted for connection purposes only |
| Fuel lines in the flywheel/bellhousing area | Must be enclosed in a 16-inch length of steel tubing with a minimum wall thickness of 1/8 inch |
| Fuel lines near supercharger drive belts | Must be steel braided, NHRA-accepted woven or woven-pushlock, or enclosed in protective steel tubing |
| Fuel line routing | May not be routed in the driveshaft tunnel |
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What You'll Learn
- NHRA-accepted fuel lines must use ends designed for the type of fuel line being used
- No hose clamps are allowed on NHRA-accepted fuel lines
- All non-OEM fuel lines must be metallic, steel braided, or NHRA-accepted woven or woven-pushlock
- Fuel lines in the flywheel/bellhousing area must be enclosed in a 16-inch length of steel tubing
- Fuel lines may not be routed in the driveshaft tunnel
NHRA-accepted fuel lines must use ends designed for the type of fuel line being used
The NHRA rulebook states that 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, with a minimum wall thickness of 1/8 inch. This is to protect against fuel-line rupture.
Fuel lines may not be routed in the driveshaft tunnel. It is mandatory that fuel lines passing supercharger drive belts are steel braided, NHRA-accepted woven or woven-pushlock, or enclosed in protective steel tubing. No hose clamps are allowed on NHRA-accepted fuel lines.
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No hose clamps are allowed on NHRA-accepted fuel lines
NHRA-accepted fuel 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, with a minimum wall thickness of 1/8 inch. This is 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 passing supercharger drive belts be steel braided, NHRA-accepted woven or woven-pushlock, or be enclosed in protective steel tubing.
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All non-OEM fuel lines must be metallic, steel braided, or NHRA-accepted woven or woven-pushlock
The NHRA rulebook states that 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.
NHRA-accepted fuel lines must use ends that are specifically designed for the type of fuel line being used. No hose clamps are allowed on NHRA-accepted fuel lines.
Fuel lines (except steel braided lines) in the flywheel/bellhousing area must be enclosed in a 16-inch length of steel tubing, with a minimum wall thickness of 1/8 inch, 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 passing supercharger drive belts be steel braided, NHRA-accepted woven or woven-pushlock, or be enclosed in protective steel tubing.
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Fuel lines in the flywheel/bellhousing area must be enclosed in a 16-inch length of steel tubing
Fuel lines (except steel braided lines) in the flywheel/bellhousing area must be enclosed in a 16-inch length of steel tubing, with a minimum wall thickness of 1/8 of an inch. This is to protect against fuel-line rupture. The tubing must be securely mounted.
Fuel lines may not be routed in the driveshaft tunnel. It is also mandatory that fuel lines passing supercharger drive belts are steel braided, NHRA-accepted woven or woven-pushlock, or enclosed in protective steel tubing.
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.
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Fuel lines may not be routed in the driveshaft tunnel
The NHRA rulebook states that all non-OEM fuel lines must be metallic, steel braided, or NHRA-accepted "woven or woven-pushlock". A maximum of 12 inches total of non-metallic or non-steel braided hose is permitted for connection purposes only; individual injector nozzle and motorcycle fuel lines are excluded.
All NHRA-accepted fuel lines must use ends that are specifically designed for the type of line being used. No hose clamps are allowed on these lines. Cars with non-OEM-type mechanical fuel pumps must have a quick-action fuel-shutoff valve within easy reach of the driver and located in the main fuel line between the fuel tank and the carburettor and/or injectors. Fuel recirculation systems not part of the normal fuel/pump system are prohibited.
All cars in Stock, Super Stock, Competition, and Pro Stock must be equipped with a positive-lock drain valve located between the fuel tank and the carburettor or fuel injector to facilitate the removal of fuel samples for fuel-check purposes.
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Frequently asked questions
All NHRA-accepted fuel lines must use ends that are specifically designed for the type of fuel line being used. No hose clamps are allowed on NHRA-accepted fuel lines.
All non-OEM fuel lines must be metallic, steel braided, or NHRA-accepted woven or woven-pushlock.
No, hose clamps are not allowed on NHRA-accepted fuel lines.
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.
No, fuel lines may not be routed in the driveshaft tunnel.
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