1st Generation Specific (1979-1985) 1979-1985 Discussion including performance modifications and technical support sections

Elford turbo head scratcher.

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Old Oct 11, 2023 | 04:04 PM
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From: shepherdswell
Elford turbo head scratcher.


This is the aforementioned Elford, with the rogue brown wire, that has no obvious conecting point. I have no info as to what the twin valves do. All I can guess is. the brown shoud be live, as the other terminal on the unit connects to earth. Heres hoping guys.
Hi guys. I'm hoping there's some, Elford wizards, out there, who can throw me a bone on a wiring issue. I'm the proud owner of an, 85 first gen. I pulled bugger apart, about 15 years ago, to do a complete resto. I was in possession of an 83 Elford turbo, that was a complete basket case, but had a very good , 68,000 mile engine. It was a total, no brainer, to swap this in. So I whipped out the Elford. Tagging thr wires, (as you do). and stored it in the shed. With a combination of, work, no garage and life generally getting in the way. By the time I got round to fitting the Elford, (14 years). Every word on the wiring tags had faded. Obviously, most of the conections are self explanatory. But because its an Elford, there's no home for the connection to the, over boost, buzzer. That black box in the footwear. There's also a rogue, brown wire, that comes from a pair of some kind of actuators, situated on top of the engine, adjacent to the Bell housing. I'll pop a pick on in the hope one of you guys could put me out of my misery. It would be bloody marvellous, if there were an Elford owner, Not to far away. That would allow me to come and have a look under their bonnet. Thanks in advance for any help you can give guys. All the best. Colin.
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Old Oct 11, 2023 | 04:15 PM
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Looks like a hobbs switch (pressure) of some sort. I'm going to assume perhaps some sort of timing retard? I'm not familiar with the kit but did it have any electronics?
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Old Oct 12, 2023 | 02:32 AM
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From: shepherdswell
. Elford turbo head scratcher

Hi 1bad. Thanks for getting back. I can't remember there being anything electronic in the engine bay. Just the black box, which is basically an, overboost buzzer. In the footwell.
You're right about the presure thing. The black wire side, connects to another pressure switch which is connected to the distributor vacuum units. The brown wire side has a tube that goes to the turbo.

Last edited by fiddyplus; Oct 12, 2023 at 02:49 AM.
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Old Oct 12, 2023 | 04:44 PM
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May have found some more info on the UK forum, just waiting for my registration to be approved. Seems like there is a manual floating around, no luck tracking it down? Will pass it along if I come up with anything. Good luck with the car, that's a super cool setup!
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Old Oct 13, 2023 | 06:59 AM
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From: shepherdswell
Elford turbo head scratcher

Many thanks, 1bad. You're a diamond! I'll keep my fingers crossed.
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Old May 13, 2024 | 06:15 AM
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From: ede
Do you allready know everything? Otherwise i can help you with all the elford info you need!
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Old May 13, 2024 | 08:08 AM
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From: shepherdswell
head scratcher

Hi Brankoboavista. Cheers buddy, you're a light in the darkness! I've searched high and low for detailed info on the, Elford setup. But no luck so far. The thing is, I stripped the Elford about ten years ago, and forgot where everything goes. I did have the presence of mind at the time to label everything. But after time it wore off! So any help you can give would be well appreciated.
My main problem is, there are two small cylinders, around 40mm diameter. sitting on top of the block, towards the rear. They are fed from the turbo to the vacuum setup on the distributer. I basically need to know where the power to these units connects to.
Hope you can help me buddy. I'll keep my fingers crossed.
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Old May 13, 2024 | 09:26 AM
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From: ede
Originally Posted by fiddyplus
Hi Brankoboavista. Cheers buddy, you're a light in the darkness! I've searched high and low for detailed info on the, Elford setup. But no luck so far. The thing is, I stripped the Elford about ten years ago, and forgot where everything goes. I did have the presence of mind at the time to label everything. But after time it wore off! So any help you can give would be well appreciated.
My main problem is, there are two small cylinders, around 40mm diameter. sitting on top of the block, towards the rear. They are fed from the turbo to the vacuum setup on the distributer. I basically need to know where the power to these units connects to.
Hope you can help me buddy. I'll keep my fingers crossed.

i’ve bought a incomplete elford setup 7 years ago, 3 years ago i bought the right rx7 to convert to a elford turbo.
i spent a lot of time to find some information and did some research. And also made some big expensieve mistakes.

you mean the “preassure pots” this is one of the parts that I miss. The part will activate a solenoid when they detect any boost, to lock the vacuum advance in the dizzy. I used a pressure activated switch from a washing machine, activated a switch on 0.1psi pressure.
Maybe you need the next image.



i you want more information, elford manual, files, photo’s or more info, please find my elford page on facebook. “Mazda rx7 elford turbo”.

Last edited by brankoboavista; May 13, 2024 at 09:28 AM.
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Old May 13, 2024 | 10:32 AM
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From: shepherdswell
head scratcher

Cheers buddy, I'll check you out on facebook. Thanks for the diagram as well.
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