Kinsler_Handbook_#32 December 2017

Kinsler Fuel Injection, Inc, 1834 THUNDERBIRD TROY, MICHIGAN 48084 U.S.A. Phone (248) 362-1145 Fax (248) 362-1032 74 COMPARISON OF RACING FUEL INJECTION SYSTEMS CONSTANT FLOW NOZZLE LUCAS MECHANICAL TIMED NOZZLE ELECTRONIC INJECTOR Complete race metering system cost with pumps but without manifold $1,500.00 $7,500.00 $2,500.00 - $15,000.00 plus cost of laptop computer to run it Dependability Excellent Excellent Very good with electronics properly selected for the intended application Ability to calibrate to exact engine requirement Fair to Good Poor to fair Very excellent + Programmed ignition Time to calibrate on dynomometer 1 - 4 Hours 1 - 2 Hours 2 - 12 Hours, but varies dramatically according to features and user aids Ability to run methanol and/or nitromethane fuels Excellent Poor or not able Fair - requires constant maintenence High risk of long term component failure Self adjusting to atmospheric conditions No On production car models Yes Does unit control metering during starting Poor; little or no atomization during cranking Very good Excellent Ease of starting Fair Very good Excellent Ability to set clean idle yet have good throttle response Poor Fair Excellent Function of nozzles/injectors Meter by pressure drop across orifice Atomization only; no metering function Meter by pressure drop across 'orifice' plus electronically controlled duty cycle Nozzle/injector atomization quality Poor -- to -- Good (low RPM) to (high RPM) Excellent Excellent Tendency for nozzles/injectors NOT to drip after shutting engine off Poor; very poor if you don't use a shut-off valve Very good Excellent Fuel economy Poor Fair Excellent Ease of cleaning nozzles/injectors Good Fair Poor if you don't have special equipment Ease of maintenance of overall system Excellent Good Fair Constant Flow Lucas Mechanical Electronic © 2017