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This is a Stainless Steel Corvair sending unit mounted to a Vega in-tank electric fuel pump. We take great care in manufacturing these units and have the following features:
- Premium Fuel Pump
- The sending unit has a bump to prevent pump slippage under pressure
- SAE 30R10 Submersible Rubber hose
- Viton seals used on Power Stud
- PTFE fuel-safe wire
- New Filter Included
- Seal and Ring Included
- All electrical connections are crimped, soldered, and shrink-tubed
- A 10-32 stud is provided for your connection. Stud/Terminals are not included.
YOU MUST USE A FUSE BETWEEN THE PUMP CONNECTION AND THE FUEL PUMP RELAY!!!
We offer EM and Late Models.
Why an Internal Pump? They are hidden and highly dependable and these are the pumps specified for the 1971 – 1977 Chevy Vega. External pumps can be noisy and can usually be overheard at idle and emulate a mechanical pump “The Clunk-Clunk noise”. The internal pump uses a Gerotor pump and does not create the large pulses of fuel as solenoid-type pumps but may produce a light “whine” that some may find noisy. Mechanical fuel pumps that don’t leak or fail are becoming hard to find and we think this is a good, long-term solution.
You should check the gauge calibration and operation of the sending unit against your gauge before installation. We test every sending unit for the proper Ohms before modification. MOST GAUGE FAILURES are ground-related.. so check your ground while testing and installing. You must specify early or late as they have different gauge Ohms.
This pump assembly will work on any Carburated Corvair from 2-7 psi (GM Old School). We recommend using the Revolution Fuel Pump Safety Switch https://www.revolutionelectronics.com/Products/Fuel Pump.html This will ensure that your fuel pump stops pumping in case of a wreck or engine stall. We also have a wiring schematic from one of our customers that shows the proper way to wire to an EM Corvair. You may also add a pressure regulator according to your needs..most Carbs do not.
We test-run each pump before it leaves our shop as part of the quality control process. DO NOT RUN THE PUMP DRY FOR MORE THAN 5 SECONDS. The rubber hose between the unit and pump is a special submersible hose that is not as flexible as most and will break the plastic end of the pump if over-flexed and is not covered under warranty.
YOU MUST USE A FUSE BETWEEN THE PUMP CONNECTION AND THE FUEL PUMP RELAY!!!
We offer pumps for EM and Late models.
This is a wiring diagram sent in by one of our Corviar guys and it has protections in case of a stall that will shut down the pump. This wiring diagram is only a suggestion and not required. You are highly encouraged to use a fuse and some system to shut down the electric pump (during an accident).
Click for detailed viewCredit: Al Lane, GA, Jun 2024
Brown EFI is for off-road use only