Page 127 - 2020-2021 Racecar Engineering Drag Racing Parts and Accessories Catalog

2020 DRAG RACING

Gen II Completion Fuel Systems Tapered Flare Fittings
Designed for use with Gen I High-flow black anodized fittings
Performance Tanks, have a smooth transition from the
fuel systems include X1 radius to the 37° flare and are ideal AFS15605 AFS15617
fuel pressure regulator, for fuel pumps or regulators. Sold individually.
fuel filter, liquid-filled fuel Part No. Description
pressure gauge, “Y”-block and necessary port AFS15605 -8AN O-Ring Boss To -6AN Male Flare Adapter
fittings. Fuel lines and hose ends must be purchased separately. AFS15606 -6AN O-Ring Boss To -6AN Male Flare Adapter
AFS15607
-8AN O-Ring Boss To -8AN Male Flare Adapter
Part No. Description AFS15608 -10AN O-Ring Boss To -10AN Male Flare Adapter
AFS17256 Carbureted Bypass Fuel System, For Single Carbureted Systems AFS15609 -10AN O-Ring Boss To -6AN Male Flare Reducer
EFI OEM Returnless Rail, AFS15610 -10AN O-Ring Boss To -8AN Male Flare Reducer
AFS17351
Includes 3/8" Quick Connect For Most Fuel Rails AFS15612 -12AN O-Ring Boss To -12AN Male Flare Adapter
AFS17352 EFI Throttle Body System, For Single 4bbl. Style Throttle Body AFS15613 -12AN O-Ring Boss To -10AN Male Flare Reducer
AFS15614 -8AN To -6AN Male Flare Union Reducer NEW!
Dual Action Adjustable Fuel Logs AFS15616 -6AN To 3/8"NPT Male Adapter NEW!
AFS15617 -10AN O-Ring Boss Port Plug
Dual-action adjustable fuel AFS15618 -8AN O-Ring Boss Slim Line Port Plug
logs are made from billet alu- AFS15626 -6AN Port Plug
minum and feature a unique AFS15630 1/16"NPT To 5/32" Hose Barb, Vacuum Boost
AFS15635
-6AN To 5/16" Barb Adapter
ball-and-socket inlet assembly AFS15637 -8AN O-Ring Boss To 1/8"NPT Gauge Port
that swivels 20 degrees, AFS15640 -10AN Swivel O-Ring Boss To -10AN O-Ring Boss
allowing additional clearance AFS15649 -6AN O-Ring Boss To -8AN Male
AFS15650
-6AN Straight Hose End
for throttle linkage and stops. -10 AN inlet provides high-feed for high AFS15652 -6AN 90° Hose End
horsepower powerplants. Dual 1/8"NPT ports for installation of a pressure AFS15696 -10AN Inline Gauge Adapter With 1/8"NPT Port NEW!
gauge and pressure transducer. Black anodize finish.
One-Way Check Valves
Part No. Description
AFS14201 Holley 4150/4500 Style Float Bowls (Will not fit Ultra HP) Designed for inline installation.
AFS14203 Holley Ultra HP Float Bowls Only
Part No. Description
AFS15106 -10AN Check Valve
-6AN Check Valve
AFS15107
TECH
The Do’s And Don’ts Of Fuel Systems
Fuel pumps, regulators, filters and fuel cells should be chosen carefully, ensuring that each has the capability of supplying the engine with fuel. Keep in mind that when
choosing alcohol or E85 that they require up to nearly twice the volume of gasoline to satisfy the needs of the engine, and that a higher volume fuel pump and larger
diameter fuel lines may be in order. Most sportsman drag race cars are fit with an electric fuel pump, either of the T-style or inline variety. The pump should be mounted
as close as possible to the cell to maintain maximum efficiency. During pump installation, a fuel pump relay (Painless Performance PWI50102), should be installed to
ensure an adequate supply of voltage, preventing “voltage drop”, a condition that occurs when running long power leads. A free-flowing fuel filter should be installed
between the cell and the pump to prevent any debris from entering the pump or fuel system. The filter element should be cleaned or replaced periodically. Often required
when employing a high volume/high pressure fuel pump, fuel pressure regulators are offered in deadhead or bypass designs. The regulator should follow the fuel pump
manufacturer’s recommendations, while remaining compatible with the induction system, whether it’s carbureted or fuel injected. While deadhead regulators are easier to
plumb, bypass regulators are sometimes preferred because they route excess fuel back to the cell, easing load on the fuel pump and reducing fuel temperatures.

If the application is a dedicated race car, a fuel cell is the only logical choice, not only for safety reasons but also since it’s engineered to contain and control fuel that is
exposed to the rigors of a racing environment. Drag race specific cells, offered in aluminum or plastic, feature a sump located at the rear to allow the G-forces of straight
line acceleration help optimize the flow of fuel to the pump. Regardless of the type of cell, most sanctioning bodies require a rollover, or tip-over valve. The valve uses
a check ball and seat to prevent fuel from exiting the cell in the event of a rollover. The valve is installed in the top of the cell and incorporated into the vent line, which
is then routed to a bulkhead so that the cell vents outside of the car. If fuel is left in the cell between races, the vent should be covered with an AN cap, keeping the
fuel contained and fresh. This is also important if the car is stored or transported in a race trailer where fuel vapors could become the source of a fire. Fuel cells may be
fit with foam blocks to minimize sloshing. The foam is fuel specific and should be replaced periodically as it can break down over time and cause a myriad of problems,
including contaminating the fuel and clogging the fuel filter. It should also be swapped out when changing brands of fuel, ensuring that the cell is free of any residual fuel.

High performance fuel hose should be used to route fuel from the cell to the engine. Traditional braided stainless hose is a bit heavier when compared to other types
of hose, but is more resistant to abrasion, while socketless and nylon sheathed are chosen due to their light weight. Every effort should be made to keep the fuel line
clear of hot exhaust components, while keeping the line as straight as possible and free of sharp turns, which can disrupt flow. When choosing fuel system components,
manufacturer’s including Aeromotive and Magnafuel have helped simplify the process by employing system planners that display complete breakdowns of fuel pumps,
regulators and filters that are engineered to work together, complete from fuel cell to the carburetor/fuel injection. The planners cover a wide variety of applications
including carbureted, fuel injected, nitrous-assisted, belt-driven, etc., and may be just the formula that’s needed to help choose the proper components.

126