##  ##  
 ##  ##  
 ##  ##  
 ##  ##  
  ###### 
         

 _     _ 
( )   ( )
`\`\_/'/'
  `\ /'  
   | |   
   (_)   
         
         

         
         
 # ###   
 ##   #  
 ##   #  
 # ###   
 #       
 #       

         
         
 ##  ##  
 ##  ##  
 ##  ##  
  ####   
   ##    
         

 _   _ 
| | | |
| | | |
| | | |
\ \_/ /
 \___/ 
       
       

IMPORTANT: enter the case-INsensitive alphabetic (no numbers) code AND WRITE SOME SHORT summary of changes (below) if you are saving changes. (not required for previewing changes). Wiki-spamming is not tolerated, will be removed, so it does NOT even show up in history. Spammers go away now.


Visit Preferences to set your user name
Summary of change:
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''' [Add pic of Griff here] 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 '''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) '''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. '''Progress Reports''' Fitting & testing the crank trigger: MembersPage/DavidBlades/TrigTest Fitting and testing other sensors: MembersPage/DavidBlades/SenTest Taking over cooling fan control: MembersPage/DavidBlades/FanTest Taking over fuel injection: MembersPage/DavidBlades/FuelTest --- '''Firmware support''' Page about dual channel wideband lamba: MembersPage/DavidBlades/DualWb Page about getting TCS inputs: MembersPage/DavidBlades/TCSInputs Thanks for any answers! Some of the wiki is not clear on these things (or I'm no good at finding stuff). If there's anything to do, I'm happy to do some coding on the project - it's what I do at work after all... :) ) To cut a long story short, (I will discuss the long version, I promise!) I completed the wiring for fuel injection today, uploaded a semi-sensible config and started the car. * It started 1st time, even with a dodgy battery. ** nice job. Anyway, please confirm you have all GND, GND5 connected and flyback too. Be careful, even if it slows things a bit ***I tested the wiring several times (took half a day over that), the battery is just getting old and struggles to turn a 5 litre v8 over... The ECU is managing to start the engine after only the 2nd or 3rd compression event, even if the cranking speed is much slower than it should be. * Brilliant job with the ECU Marcell! ** There's really many people's work in it, ***And to everyone else whos name I don't know yet! (I will, as there's still a long way to go on this project.) Anyway, you did the extra mods I wanted. :) There's a few niggles to solve, and some refinements to do, but fundimentally it's working.
Optional: Add document to category:
Wiki formatting: * is Bullet list ** Bullet list subentry ... '''Bold''', ---- is horizontal ruler, <code> preformatted text... </code> See wiki editing HELP for tables and other formatting tips and tricks.