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About time I got started... I have a TVR Griffith 500. It's a great car, but could be so much better with the right engine management. My aims are to: *Increase my knowledge of engines and mapping *Make the car easier to maintain and modify *Avoid potential problems with obsolete parts *Gain more power from the engine while using less fuel :-) *Aid with the development of VEMS '''A few words on the car''' http://www.aqyz05.dsl.pipex.com/front_qtr_sml.jpg It's a light (1078kg) 2 seater convertable with a 5 litre Rover v8 engine (only 2 valves per cyl :-( ) made by a small company in Blackpool. There are no active safety features at all, so you have to drive it properly. Modifications to date are uprated suspension, uprated brakes, polybushes and a large alloy radiator. '''VEMS setup''' Since I'm very time limited for the moment, I've gone for a fully assembled genboard 3.3 with all the bells and whistles. I plan to have: *the usual sensors (MAP, IAT etc...) *fully sequential ignition and injection *2 WBO2s *dual knock sensor (even having 1 is an improvement!!) ** 1 acoustic is supported, 2 channels require firmware mod ** Ion Sensing needs new hardware ** OK, forget ION sense for now. 1 acoustic is good enough. *EGT (eventually) '''Trigger setup''' Primary: 36-1 tooth wheel on crank, and Ford VR sensor Secondary: modified distributor with hall sensor - the advance and reterd mechanism will be locked and the factory sensor for the timing will be modified to produce one pulse per rotation instead of the usual 4. (I may make this neater in future and put something directly on the cam wheel as this will be 0.01% more efficient ;-) ) '''Order of work''' *Get VEMS up and running in place of the Lucas 14CUX using the basic sensors. This will be injection only, running batch fire (max 2 injectors per batch instead of 4) *Replace ignition system with 8 coilpacks. )Shame Subaru ones don't fit - I've got loads of them.) *Start to add the "extras" like WBO2 *Do some tuning :-D Update on this: *I'm through the first stage of basic sensors and running in semi-sequential mode (2 injector firings per event). *No coils yet, but they are on order from USA *Some extras added - WBO2 now fitted *Some tuning of ECU done. Car goes quite well. No mechanical mods for the moment. '''Tuning''' New exhaust manifolds will find their way on the car as the original ones aren't the best design. Also, the intake system could be redesigned to use 8 throttle bodies. Plenty of scope when there's a nice ECU dealing with it all. '''Completion Dates''' Target date for having fully complient system for UK emissions tests is March 2006. This will require at least one WBO2 sensor (preferably 2) Update: Apparently well on target here! '''Other plans''' One goal is to reduce the cars fuel consumption. To this end, I will be investigating "displacement on demand" - ie not fuelling certain cylinders depending on the engine loading. This nicely ties in with the actuation routines for traction control - another thing I plan to look at next year. Update: Nothing new here, other than I've found (but not fitted) the sensors I need. '''Milestones along the way...''' Fitting & testing the crank & cam triggers: MembersPage/DavidBlades/TrigTest Fitting and testing other sensors: MembersPage/DavidBlades/SenTest Injector Setup & Config file: MembersPage/DavidBlades/InjSetup VE, Lambda tables & tuning the fuel: MembersPage/DavidBlades/FuelTest Starting and Warm-up: MembersPage/DavidBlades/StartingWarmup Acceleration Enrichment: MembersPage/DavidBlades/AccelEnrich Idle control: MembersPage/DavidBlades/IdleControl Cooling fan control & other ancilliaries: MembersPage/DavidBlades/FanTest Fitting Ignition system: MembersPage/DavidBlades/IgnSetup Non VEMS related issues: MembersPage/DavidBlades/NonVems --- '''Firmware support''' Page about dual channel wideband lamba: MembersPage/DavidBlades/DualWb Page about getting TCS inputs: MembersPage/DavidBlades/TCSInputs --- '''Other Projects that may happen''' (Or if it moves, it could do with VEMS) *"Plug and play" solution for Subaru Impreza MembersPage/DavidBlades/Subaru *BBE Quark kit car. (You'll never have heard of it - I've not built the prototype yet!) *Possible MGB GT VEMS Install. *Possible Honda CRX Install.
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