Rewind a few weeks to the Nats.
On Sunday afternoon I walked past the table where Pete Wiseman was sitting with Cheng of Thunder Road cars, who is also Technical Director for the 'Bernie's Sports Racing and V8s' race series. Pete introduced me to Cheng, who promptly asked me if I'd like to race the car with them. My protestations of inexperience were waved aside, so a day or two later I found myself entering the next round of the series, which would be at Brands Hatch GP circuit on 8th September.
I would be outclassed by both the cars and the drivers, but reckoned that if nothing else, it would be
a) A good deadline to get the car ready for
b) a rare chance to drive on the fabulous full GP circuit, which is not open often.
So a couple of things to do to get the car ready , mainly
a) finish installing the fire extinguising system
b) fit a lap timing transponder
c) seal the rear of the bonnet opening
Regulations require a permanently plumbed-in fire extinguisher system, operable from both inside and outside the car, with nozzles by the driver and also in the engine compartment.
First step - find somewhere to mount the external button. Must be next to the electrical cutout, and the recommended position for both is on the windscreen scuttle by the driver's door
Well there's no exterior scuttle on the E-Body, and I didn't fancy drilling the top rear of the front wing much, as it's double skinned. So I folded a little aluminium box up to sit between the wing and the screen, and had the edges welded up

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The Thursday before the Saturday race, I started fitting the rest of the system - which I'd bough new a few months previously. I checked the gauge on the bottle and it read empty !

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Much head scratching. I weighed the bottle and it weighed full. So i called the dealer I bought it from (who fortunately is a small independent that I know well) and he called the manufacturer immediately. Fortunately again, the units are manufactured in the UK. I'd missed the courier deadline for a replacement to be sent out that day, so I drove about an hour to the factory on Friday morning where the bottle was replaced immediately and with apologies. Looks like the O-ring under the pressure gauge had unseated, which let the propellant out.

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Friday Midday - time to finish the system ! The replacement bottle is a newer model and is a slightly smaller diameter , which necessitated packing the mounting cradle with extra rubber strips.
Nozzles next to driver- one under floor and one under dash. Control box at front of transmission tunnel.

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Nozzles in engine compartment - pointing at the fuel system.

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Internal trigger button to right of main switch panel

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b) Lap timing transponder. Has to be fitted so that the car can be timed on the track. There's only one main supplier for these, and they changed their business model a few years ago so that new purchasers now also have to pay an annual subscription. Following a helpful chat with Andy Robinson at the Nats I knew that it would be preferable to buy a secondhand non-subscription version. Yes these now fetch high prices, but at least there's nothing else to pay in the future !
Rechargeable and hardwired versions are available. Hardwired simplest - just fit and forget. Mounts at the front of the car fairly low. Sorry picture won't rotate !

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