http://city-racer.hypermart.net/SP.htm

Has anyone heard of these and are they as good as they say they are.

I think you can only get them in a Number 7

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A Bloody Mini

1970 Mini K, 1380cc, 1.75 HIF SU, 30 70 Cam, 2" Zorts
1969 Mini K, Stock Standard and Orginal. (Slow as Hell)

I'd be surprised.
did you look into how expensive??

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Bob Slattery
Duffman Says A Lot of Things - OH YEAH!!

$18 each

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A Bloody Mini

1970 Mini K, 1380cc, 1.75 HIF SU, 30 70 Cam, 2" Zorts
1969 Mini K, Stock Standard and Orginal. (Slow as Hell)

one way to find out.....

mate of mine in the US has plugs with a 4 point central electrode in his BMW Z3, reckons they are twice as good as twin point ones

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the world is a book, and those who do not travel read only a page
66 Mini Minor sponsored by http://www.lifeonthehedge.com.au/ The Dog Harness Specialists
It was a pleasure ausmini. I'll miss all you misfits and reprobates

a mate of mine had bosch quadfires (?) in his lada, claimed that they were worth every penny. (his lada niva could do 4 wheel burn outs on bitumen!)
I was planning to get a set when I finally find a car!

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Noli Illegitimi Carborundum

I've been using the new Iridium High Performance Plugs.
Very impressed!!! Listed for Mini.

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Bosch W 7DTC ones have 3 electrodes but you only really get one spark, as it jumps to the closest one. As the electrodes take turns (as they wear) the plugs last longer. They were designed for VWs and are supposedly good for 60,000 miles..
You don't need to gap them, either.
No I haven't tried them, yet!

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DrMini- 1970 wasaMatic 1360, Mk1S crank, 86.6HP (ATW) =~125 @ crank, 45 Dellorto (38 chokes), RE282 sprint cam, 1.5 rockers, 11.0:1 C/R.

I might be wrong about the brand but they were the ones with 4 electrodes, cost about $20 each. He blew gearboxes like crazy but never replaced a plug

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Noli Illegitimi Carborundum

Bosh 4's sounds right as I am running them at the moment and yes I had a little better go and it ran smoother but the USP are suppose to through a plasm arc not a spark likt normal ones.

Also check out this site it show you in a video on how that should work

http://www.robertstanley.biz/firestorm.htm


These ones are not avaliable yet.

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A Bloody Mini

1970 Mini K, 1380cc, 1.75 HIF SU, 30 70 Cam, 2" Zorts
1969 Mini K, Stock Standard and Orginal. (Slow as Hell)

My last experiences with multi-electrode plugs were not happy ones. They were Golden Lodge 2HL, as used in Alfas. In the Fiat 124S they lasted a mere 1000 miles then just would not fire properly. Impossible to clean them, very little room inside.....

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DrMini- 1970 wasaMatic 1360, Mk1S crank, 86.6HP (ATW) =~125 @ crank, 45 Dellorto (38 chokes), RE282 sprint cam, 1.5 rockers, 11.0:1 C/R.

NGK used to make a similar style plug, called a delta type electrode or similar. They were used in some BMW engines. NGK don't make them anymore. If they were as good as claimed NGK would still be making them. BMW changed to the twin electrode type. I tried the 4 electrode type in a BMW 318iS but after 20K kms they started to miss so I went back to the 2 electrode type.For $18 it doesn't seem worth it.
Everytime petrol prices skyrocket these type of devices gain a new lease of life.
Won't be long before we see the water into petrol pills and all manner of inlet tract devices supposedly designed to improve the mix of air and fuel.

Regards
RonR

I have been looking into these things for the last 12- 18 months

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I've Got One
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A Bloody Mini

1970 Mini K, 1380cc, 1.75 HIF SU, 30 70 Cam, 2" Zorts
1969 Mini K, Stock Standard and Orginal. (Slow as Hell)