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Overview: My name is Karl Buchka. I am a third-year Electrical Engineering student at The University of Massachusetts Amherst. The car is a 1979 Volvo 242 with a 1995 Volvo 850 Turbo engine (B5234T). Some details on the car: * Inline 5-cyl., 2.3l, turbocharged (TD04H-15G), 4 valves per cylinder. The engine is essentially stock, save for a new (OE Volvo) intake manifold and 350cc injectors. At 15psi on the current setup I flow fuel for approximately 250bhp. * VEMS 3.3 will replace the current setup of: MSnS-E 029y4 on a V3 PCB with sequential COP, batch fire injection, boost control, fan control, tacho output, two-step, and a Just Another Wideband (JAW). http://www.vems.hu/files/MembersPage/KarlBuchka/242-beach.jpg ---- '''VEMS Setup:''' Apart from the standard sensors (MAP, CLT, IAT, TPS), I'm planning on setting up the VEMS with the following major functions: * Sequential coil on plug * Sequential injection * Single channel wideband and EGT * Dual channel knocksense * Fan control, boost control, two-step, tacho output, shift-light, 20x4 LCD '''Trigger settings:''' The engine comes from the factory with a 60-2 wheel/VR sensor on the crank and a single tooth wheel/hall sensor on the cam. '''Goals:''' My initial goal with this install is to overcome the limitations of Megasquirt (some of which I have reached, others not), putting me in a much better position to take the car to the next level. Also to have a good time with it, and possibly learn something useful along the way. '''Shopping cart:''' I have put together a list of items to be ordered from the VEMS Webshop. Ideas, comments, or suggestions are welcome. * GenBoard v3.3 * Injector or WBO2 heater driver (8, one for each injector, one for WBo2 heater, one for boost control, one spare) * Ignition driver (2, running ignition in 2+6 configuration) * Power Flyback - With wire * Dual channel knock sensor interface (do I need this, or is it included on the board already?) * 250-400 kPa MAP sensor - MAP connection 400kPa bare - Supply 5V (webshop is somewhat unclear, is this the correct map sensor?) * - - - * Alubos1600 * Alubos gasket * Alubos Endplate * Alubos EC frontplate * Econoseal18-PCB * Econoseal36-PCB * Econoseal18-harness * Econoseal36-harness * Wideband connector - With crimped wires I have decided to purchase the un-assembled GenBoard for a few reasons: I'm doing this as much for the learning experience as for the VEMS feature-set. If I wanted a 'plug-and-play' system I would buy a Haltech or Motec. A more minor motivator is the lower price. I will be purchasing power resistors and an LCD seperately, as I can find both for much lower price locally. ---- '''Sections:''' (most of these are incomplete, will continue to add info and break into sections as time permits) Crank and cam sensors/settings MembersPage/KarlBuchka/Trigger Sensors and inputs MembersPage/KarlBuchka/Sensors Fuel (Injectors, VE, lambda, enrichments) MembersPage/KarlBuchka/Fuel Spark (Coils, Spark advance) MembersPage/KarlBuchka/Spark Outputs/ancillaries MembersPage/KarlBuchka/Outputs (Fan control, boost control, shift light)
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