Kinsler Handbook #32 May 2025

Kinsler Fuel Injection, Inc, 1834 THUNDERBIRD TROY, MICHIGAN 48084 U.S.A. www.Kinsler.com Phone (248) 362-1145 Fax (248) 362-1032 105 Thermal Expansion (Temperature): The pressure balance plate system and a super stable housing/cover design gives us an architecture that reduces the loss of flow up to 75% less than other manufacturers. A main goal in racing is consistency, if your fuel tune-up changes excessively with the fuel pump’s temperature, your engine is not going to perform consistently. Why a Kinsler Tough Pump can improve your performance and reliability ======================================================== Date 11.14.23 Initial N.A. Ser. No. 5219 Model 500 Rotation looking at the end C.W. of the pump's drive hex REV. Flows at 2000 pump shaft RPM and 70° F Gasoline Methanol Specific gravity  Specific gravity of test fluid used of test fluid used at 70° F    .695 at 70° F    . 0.795 Pounds Gallons Pounds Gallons Per hour Per Min. Per hour Per Min. 5 PSI 837 2.40 964 2.43 50 PSI 825 2.37 952 2.40 100 PSI 812 2.33 939 2.36 150 PSI 799 2.30 927 2.33 Grease the drive hex upon every installation Pump is NOT reversible This is your pump and you may take it apart if  you wish, however due to added complexity of the internals we recommend all service be performed by Kinsler Fuel Injection TOUGH® P UMP KINSLER.com 24 8 362-1145 Patent Pending Consistent Test Output: Every pump is flow tested then run-in for two hours, then re-flow tested before shipping. All pumps receive a stainless steel “pump size” tag Why a Tough Pump? It’s design allows it to operate at higher fuel pressure loads which allows increased system fuel pressure, to help atomize fuel at low rpm and to change the dynamic flow curve. Our Tough Pump has the ability to survive the demands of a modern fuel system. Pressure Loads (PSI): How does it handle greater pressures? We use advanced machining techniques to improve the tolerances, add our patented pressure balance plate system, use higher quality material and coatings, and optimize the design architecture to improve the pressure capabilities and reduce cavitation, to improve the overall performance and reliability. © 2024 } Each size pump is held to a tight flow output specification. If a pump does not have the required flow it is NOT shipped. Our test benches are designed for repeatability and consistency. The performance on any pump we test can easily be compared to any other pump tested. In other manufacturers pumps we see as much as 12% variation in flow on the same size pump and they call them good. Why a Tough Pump? Our pumps of the same size can be interchanged without a change in the fuel system settings. All the time you spent ‘dialing in’ your fuel system is not lost and you don’t have the risk of damaging an engine due to the flow differences seen with competitor’s fuel pumps. { HP TORQUE Flows are at Pump Shaft RPM, --- NOT Engine RPM. Pump Flows are in lb/hr & GPM Flowed Using Methanol: .795 specific gravity at 70°F PUMP TA G Pump Sizes