MembersPage/DavidBlades (2010-07-12 15:41:33)

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:

A few words on the car

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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:

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

Update on this:

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 trigger: MembersPage/DavidBlades/TrigTest

Fitting and testing other sensors: MembersPage/DavidBlades/SenTest

Injector Setup: 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

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Firmware support

Page about dual channel wideband lamba: MembersPage/DavidBlades/DualWb

Page about getting TCS inputs:

MembersPage/DavidBlades/TCSInputs

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Impressive work Mr Blades, there are a small number of us VEMSers in the UK, its good to see more people discovering the benefits of the system. If you want to send me an email at phatbob@www.vems.co.uk I'll give you my mobile number should you need to ask any questions.

Old stuff

Stored until page update is done.

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.

There's a few niggles to solve, and some refinements to do, but fundimentally it's working.