- 1. How much do your pumps cost? Why should I pay
a premium for Weldon?
Our racing pumps range in price from $350 to $1500, depending
on type, flow and configuration. Weldon Racing Pumps are
manufactured using aircraft billet aluminum, high speed
steels and American made electrical motors there
are no plastics or phenolics used in a Weldon Pump. Each
pump also comes complete with its own flow chart and traceable
- 2. Can a Weldon Pump or regulator be repaired if
Yes, all Weldon Racing Pumps and regulators can be repaired,
if damaged. They can either be returned to the plant or
to an authorized repair facility listed on the distributor
- 3. Can a Weldon pump be used on a carbureted system?
Yes, all Weldon Racing Pumps can be used with a carbureted
system. The only change would be to the bypass regulator
spring -- there are two lighter weight springs (15 lb
or 30 lb) that can be used for this type of application.
- 4. Can a Weldon fuel pump and regulator be used for
Yes, All Weldon Racing Pumps and regulators are compatible
with alcohol the only exception is the 600-A. The
600-A is an in-line fuel pump (fuel flows through the
motor) which makes it not compatible with alcohol fuel.
- 5. Can I use my Weldon pump to pump water?
No, Weldon fuel pumps are not designed to pump or be used
to transfer water.
- 6. What position(s) can I mount my Weldon pump? Can
I mount it upside down? Can I mount the pump above (higher)
then the top of the fuel cell?
The preferred mounting position is with the motor up and
the pump end down, but it can be mounted horizontally
or vertically. It is okay to mount a Weldon Pump above
the fuel tank / cell they can lift as well as push
the fuel. Do not mount a Weldon Pump at a 45 deg. angle
this will cause an added load on the motor and
- 7. Will the 9200-A pump lift ATF or motor
The 9200-A will not lift fluids efficiently it
will work best when the inlet is placed at or slightly
below the fluid level and when the fluid is warm.
- 8. Should I use a relay or a fuse when running a
Weldon electric fuel pump? If so, what size relay or fuse
I use? What size wire should I use?
Yes, a relay and a fuse should be used they should
be sized to match the maximum allowable amperage of the
given pump. This information can be found on the pumps
supplied flow chart. The wire size to use should be no
smaller than what is supplied with the motor and the wire
length should be kept to a minimum.
- 9. Should I filter my fuel before it enters the pump?
Should I use a filter after the pump? What size filter(s)
should I use?
Yes, Weldon Pump recommends the use of a 40 micron filter
(WEQ1240) before the pump and a 10 micron filter (WEQ1210)
after the pump. Either a paper type element or a stainless
steel mesh type element will work for filtering fuel.
- 10. Does my fuel tank need to be vented?
Yes, the fuel tank or cell requires venting to the outside
of the vehicle. Do not use a vented gas cap in lieu of
a true tank or cell vent.
- 11. How do I use my Weldon fuel system with a supercharger
or a turbocharger?
The actual installation for a turbo or supercharged application
does not change the usage of the Weldon Fuel pump. All
Weldon Bypass Regulators have a boost reference port that
needs to be plumbed in accordance with the turbo or supercharger
- 12. How do I hook-up my wet nitrous system
to my Weldon fuel system?
All Weldon Fuel Pumps are compatible with all nitrous
systems. Fuel pumps and regulators must be used per the
Nitrous manufacturers recommended installation instructions.
- 13. Can I drive my Weldon fuel pump on the
street, in traffic?
All Weldon Racing Fuel pumps (except the 16000-A) can
be used in street driven vehicles when used with the 14000
Controller. The 14000 Controller is a Pulse Width Modulation
device that controls fuel pump speed, but does not allow
fuel pressure to drop. This allows the pump speed (fuel
flow) to be lowered (via a potentiometer) while maintaining
pressure in the system.
- 14. Can I drive my Weldon fuel pump dry?
Yes, but damage to the pump element will occur if the
dry-run condition continues.
- 15. What is the 14000 Dial A Flow? Does it lower
the voltage of the pump?
The 14000 Controller is an PWM electrical device that
can control the speed of a Weldon Fuel Pump to achieve
lower flow (gph), but allows fuel pressure to remain constant.
It also allows the user to toggle between
this lower pump speed and full pump speed as increased
vehicle performance is required. The 14000 Controller
actually spreads out the current that the
motor receives, this is what slows pump speed.
- 16. Can I run my Weldon pump with a 16 volt system?
Yes, all Weldon Fuel Pumps can run on 16 volts.
- 17. How do I store my Weldon pump for the winter?
The ideal way to store your Weldon Racing Pump (during
the off season) is to remove from the vehicle, spray a
rust preventative lubricant into the inlet, install the
red shipping caps and place the pump in a
dry location. However, most times this is not practical.
So, it is best to remove inlet hose (watch for leftover
fuel in the line and pump), place a small amount of oil,
or rust preventative into the inlet port and cycle
the pump for a second or two, then reconnect the inlet
line. The oil coating will protect the high speed steel
internal pieces from damage.
- 18. I use methanol fuel. Do I need to flush
my Weldon pump after use?
It is recommended to flush your fuel system
with racing gasoline after using methanol, although not
specifically required with a Weldon Fuel Pump due to its
use of leaded bronze and tool steel as internal parts.
The flushing will mainly protect the other
components of the fuel system that are directly affected
by methanol. Methanol and alcohol based racing fuels are
highly corrosive and also carry a certain amount of moisture
-- this moisture is what needs to be eliminated from the