fuel injection technicalinform at i o n coolant temperature sensor the coolant temperature sensor is a two-wire sensor that is threaded into the engine block and is in direct contact with the coolant the function of this sensor is to generate a signal that the ecu uses to adjust the fueling levels required for the operation of the engine and operate ancillaries the thermistor contained in the sensor generates an electric signal that is proportional to the coolant temperature at low temperatures the resistance is high 3800 ohms generating a 5-volt signal in the ecu at normal engine operating temperatures the resistance of the sensor is low 180200 ohms which generates 12 volt signal in the ecu other functions of the coolant temperature signal are · · · · · top-fed fuel injector when the ecu activates this electromagnetic valve the injector meters and atomizes fuel in front of the intake valve the fuel enters the top and is discharged via the metering orifice at the bottom at high p
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commander 950tm pro software the holley software included is windows-based it is designed for beginning users or expert tuners the software is compatible with windows 3.1 95 98 2000 me and xp operating systems a computer with a 9-pin serial port is required the software allows real-time tuning whether on the dyno or tuning on the street all sensor data is viewable from both the fuel and ignition timing maps which makes tuning easier the fuel and ignition timing maps can both be viewed in graphical form which helps to better visualize the data hot keys allow for quick navigation between screens other features such as warning the user when a fuel map number is entered that drives the injectors static makes tuning safer a comprehensive step-by-step tuning manual is included along with many base maps to get you started and assure success a professional level data-logger is included for evaluating on-track performance a copy of the comprehensive 100 page manual can be downloaded at holley.c
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stealth ramtm multi-point fuel injection systems want to get oooos and ahhhs every time you open the hood want to feel real power every time you step on the loud pedal then you d better get holley s new stealth ramtm mpfi system on your street machine tunnel ram design helps to build power the plenum and runner designs promote excellent mid-range torque along with outstanding high rpm power the available polished finish makes you look good commander 950tm software and electronics helps you get down the road in no time stealth ramtm mpfi systems are complete and include a 2x58mm billet throttle body the following are available new new new part 91503201b 91504201b 91505201b 91506201b 91403201b 91404201b 91405201b 91406201b part with wide band o2 91503211b 91504211b 91505211b 91506211b 91403211b 91404211b 91405211b 91406211b 91500011b vortec vortec w wbo2 applications applications 91703201b 91704201b 91705201b 91706201b 91603201b 91604201b 91605201b 91606201b 91703211b 91704211b 9
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commander 950tm race mpfi systems ew n · designed for bbc bracket and hot street engines · economically priced with all the features a racer needs · wide band oxygen sensor and internal datalogger make on-track tuning simple · 42 or 50 lb/hr injectors · rectangular port bbc · standard or tall deck blocks · 1000 4150 or 2000 4500 cfm throttle bodies · includes throttle body manifold injectors fuel rails wiring harness ecu software ntk wide band sensor and controller · customer supplies fuel pump fuel filters and fuel pressure regulator part 92106011 92306011 92107011 92307011 92207011 92407011 pro commander systems w wide band o2 standard deck big block chevy 1000 cfm 42 lb/hr w wide band oxygen sensor standard deck big block chevy 2000 cfm 42 lb/hr w wide band oxygen sensor standard deck big block chevy 1000 cfm 50 lb/hr w wide band oxygen sensor standard deck big block chevy 2000 cfm 50 lb/hr w wide band oxygen sensor tall deck big block chevy 1000 cfm 50 lb/hr w wide band oxygen sen
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stealth ramtm mpfi power pack kits ew n part 81503001b 81504001b 81505001b 81506001b 81403001b 81404001b 81405001b 81406001b this kit simplifies the task of converting a factory efi system to a stealth ram all that s needed is any factory or aftermarket ecu wiring harness and fuel pump it doesn t get much easier or more powerful stealth ramtm kit description satin finish kit with 24 pph injectors satin finish kit with 30 pph injectors satin finish kit with 36 pph injectors satin finish kit with 42 pph injectors polished kit with 24 pph injectors polished kit with 30 pph injectors polished kit with 36 pph injectors polished kit with 42 pph injectors horsepower range 300 385 480 575 300 385 480 575 385 480 575 670 385 480 575 670 a brake specific fuel consumption bsfc of .45 and 90 duty cycle is used for the maximum horsepower recommendation system features · fits early and late model 23º chevrolet cylinder heads · designed to use gm tpi throttle and transmission cables and brackets
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commander 950tm mpi service parts fuel lines rails fuel line fuel rail crossover small block chevrolet v-8 fits holley mpi manifolds fuel line fuel rail crossover big block chevrolet v-8 fits holley mpi manifolds 9900-144 left right hand fuel rails small block chevrolet v-8 fits holley mpi manifolds left right hand fuel rails big block chevrolet v-8 fits holley mpi manifolds left right hand fuel rails crossovers fittings hardware small block chevrolet v-8 fits holley mpi manifolds left right hand fuel rails crossovers fittings hardware big block chevrolet v-8 fits holley mpi manifolds stealth ramtm fuel rail kit w non-adjustable regulator stealth ramtm fuel rail kit w adjustable regulator universal fuel rail kit 12 length universal fuel rail kit 18 length universal fuel rail kit 36 length part 9900-144 9900-145 9900-147 9900-149 9900-172 9900-173 534-185 534-186 534-78 534-79 534-80 108-4 fuel injection 9900-173 gasket air cleaner 108-4 pump fuel electric 12-920 s
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fuel injection throttle body fuel injection overview holley throttle body fuel injection systems general information holley offers two barrel and four barrel universal stand-alone throttle body injection systems that will replace a carburetor on a non-computerized vehicle two barrel systems are available with either the holley digital d ecu or the new commander 950 ecu the d ecu does not have the ability to be programmed or mapped with a customized fuel map via lap top computer rather it uses a basic pre-programmed performance fuel curve that has a wide range of adjustability it is intended primarily for stock or very mildly modified vehicles with v8 engines that can maintain at least 15 vacuum at idle a/t idling in gear the commander 950 ecu is a highly versatile and sophisticated ecu design that enables the user to program a customized fuel map for the motor through use of a lap top computer two barrel throttle body systems equipped with commander 950 can work on any 4 cylinde
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fuel injection commander 950tm 2-bbl throttle body marine 4 2-bbl throttle body commander 950tm 2-bbl throttle body fuel injection systems commander 950 two barrel throttle body fuel injection systems offer the owners with smaller engines the same opportunity of precise fuel and ignition timing control that others enjoy any 4 6 or 8 cylinder even fire engine can be retrofitted with these systems two systems are available a 670 cfm unit with two 85 lb/hr injectors for engines up to 275 horsepower and a 400 cfm unit with two 65 lb/hr injectors for engines up to 225 horsepower both units have an adjustable regulator these systems offer all the same features as all other commander 950 systems such as idle air control motors closed loop control speed density operation ignition timing control and full laptop programmability adapters are included for both square and spread bore intake manifolds other applications will require adapters note these systems are designed only for fuel and spark
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fuel injection throttle body fuel injection service pa r t s tbi system service parts a adapter air cleaner a b 2-bbl pro-jection 2-bbl pro-jection 2-bbl pro-jection 2-bbl pro-jection 4-bbl pro-jection systems part b adapter tbi spread bore to tbi flange c adapter tbi square bore to tbi flange d adapter tbi square bore to spread bore flange 17-14 17-41 17-45 17-6 17-47 20-96 20-97 534-27 534-54 512-1 508-10 508-12 508-19 c d e adapter tbi 2300 2-bbl flange to tbi flange f bracket transmission cable gm th-700r4 g bracket transmission cable gm th-700r4 2-bbl pro-jection p/ns 502-1 502-2 chevrolet small block v-8 with original equipment 4-bbl intake manifold 2-bbl pro-jection p/ns 502-1 502-2 aftermarket 4-bbl intake manifold 1-bbl 2-bbl 4-bbl pro-jection analog systems 1-bbl 2-bbl digital pro-jection 1-bbl 2-bbl 4-bbl pro-jection e f h closed loop kit i closed loop kit h j diaphragm fuel pressure regulator k distribution ring air l distribution ring air m injector o ring kit g 4
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fuel injection throttle body fuel injection service pa r t s tbi system service parts a linkage kit 4-bbl throttle body progressive secondary action 1:1 secondary action b c part 534-160 534-161 12-813 12-814 12-927 12-920 534-26 534-50 534-51 534-46 534-2 534-10 538-13 538-24 43-106 543-1 543-3 543-29 b plate fuel pump block-off chrysler big block v-8 chrysler small block v-8 c plate fuel pump block-off chevrolet small block v-8 chevrolet big block v-8 d pump electric fuel 258 pph 15 psi all 1-bbl pro-jection all 2-bbl pro-jection d e e pump electric fuel f g all 4-bbl pro-jection 480 pph 15 psi all mpi systems 402 pph 45 psi all pro-jection systems w/o oxygen sensor w oxygen sensor f relay 40 amp g rich/lean indicator h i h rich/lean indicator i sensor air charge j k fuel injection l m all digital pro-jection systems j sensor coolant temperature all 4-bbl analog pro-jection systems p/n 502-20 digital 2-bbl pro-jection k sensor coolant temperature all 4-bbl digital pro-jection
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