Fellow megasquirter and good friend Matt Durys has a Griffith 500. I have made various parts to enable him to remove the Lucas ECU.

72mm Rover V8 plenum

Matts prototype with brass throttle:

The air inlet pipe on the end has a 3" OD, also i use aluminium for the throttle on all conversions.

I can machine out the "3.9" from the lid if you don’t want it, as can be seen on this one.

MEZ 72mm Gems Plenum

OEM Plenum, which is 65mm and them same plenum bored out to 72mm by me.

Conversion notes:

The water jacket under the throttle (which prevents icing in certain climates) can be thin on some castings. On this plenum the wall thickness was 5mm, boring it out leaves 1.5mm.

If your manifold is thin in this area, it can be welded up (£25 extra) - but this means the throttle heater/de-icer function is totally disabled and may not be suitable for certain driving conditions.  

This is what a “good” casting looks like - and also a welded up version.

72mm Plenum prices

If you supply your own plenum for conversion - cost is £150 and includes the throttle plate.

When I have them in stock, outright plenums are £185 (Currently in Stock)

Rover V8 serpentine 36-1 trigger wheel installation

To fit an EDIS 8 to a TVR Griffith 500, you need to fit a ford 36-1 trigger wheel (Part Number 1078767). The wheel is 2mm thick, so I machined about 1.5mm from the damper and a further .5mm from the pulley - the wheel is then clamped between the two.

The salot (dowel) pin, which was removed when turning the register on the damper is then used to secure the wheel in the desired location.

On the water pump, I ground the two protruding bosses down to provide a nice flat surface the simple VR sensor bracket.  I also made an aluminium blanking plug for the distributor

Update: Thanks to Antony Pattison who identified the part number as F3DE-6C315-AB (F3DE-6C315-CB is also similar - google the part number)

19/8/07

Congratulations to Matt, who's Megasquirted Grif 500 pulled 299BHP at the Griffith Growl dyno day - most were pulling around 250.

Good work - billet and bling free zone!

ACT Products induction pipe

I finally shamed Matt into fitting an air filter on his car. Which meant I had to make a pipe to replace the AFM, which includes a boss for the GM air temp sensor.

TVR Griff 500 Wishbone bush replacement

Here's how to adapt a clarke 10 ton hydraulic press, to press the suspension bushes out. Then shot blasted and powder coated.