MembersPage/DavidBlades (2006-01-11 19:41:33)

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

[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:

Trigger setup

Primary: 32-1 (not 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

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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... :) )