I tried some NGK BP7EV, same sort of thing.
No differece to BP7ES that I could tell.

Don't forget a lot of this stuff is just marketing hype.
Don't get me started on Copper Core spark plugs.. I know how they are made, and it's pure marketing BS.
As Vizard said, adding Speed Equipment is only good if it increases speed!

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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.

well I have had the B8EGV race plugs in for a few months now and they were running great, the car was a little harder to warm up and ran a little rough for the first 20 seconds or so but then was great and did seem a bit smoother too, untill the run to terigal i had advanced the timing up a degree or two the night before and thought she will be fine, once or twice that day when i gave her the berries on 15psi she had a bit of a pop through the intake at about 5500 to 6000 max torque band, i thought ooh have not doen that before.
so i pulled th eplugs that night as i check them after most runs (last thing i want is to lean out and go pop) and two of the plugs have melted the centre electrode which made the gap about 150 though (no wonder she popped a few times) so i think i had advanced he up a bit much and got a little detonation
i will take a pic of them for you all to see.

i fitted the B8ES plugs back in for now and the car is pretty much running the same so who knows

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100% Pure A Series Turbo
Morris - The Original RedBull Racing

Grant,
If you need plugs that cold on the street, turbo or not, I reckon it might be a bit lean up high..
Watch you don't melt more than spark plugs!

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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.

well i know what you mean, but i do have cossie forged pistons they are great, last time i had the head off i had a close look and i could see some detnation marks on them but only minor, i have avery modded needle in atm and if anything its pretty rich up top, i only went the B8EGV plug cause they do not make a B7EGV so i might try a B7EV like you have and see how she goes

thansk for the head sup though

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100% Pure A Series Turbo
Morris - The Original RedBull Racing

B7EV will not get as hot as a BP7EV- they are not projected nose- so that will help..
Have you run it up on a dyno to check mixture? Might be time for another sashay down to MRD or whatever it's called at Castle Hill.. I'm game too- I'll bring Ha-Ha AND Barney (will have his twin HS4s next week)

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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.

yeah Kev i have been thinking of it and i so wanted to go to the last one.

how much was it ?

i'm keen

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100% Pure A Series Turbo
Morris - The Original RedBull Racing

It cost $50 a head, they got 2 or 3 runs...

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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.

my cooper has been eating up spark plugs - it seems to only be in #4, but I'm not sure.

Basically I drove to work on Wednesday, when I started him up to drive home, he was only on 3 cylinders - I thought maybe it was just a bit of carbon buildup so I drove down the freeway, but that didn't help, I swapped it to another cylinder and it still didn't work, so binned it and put in another, that one was dead by thursday afternoon, and another one went today - my guru mechanic mate reckons I should try some N11YC's in it, I was using W6DC, and BP6ES before that.... reading what Doc's said, maybe try N9YC before the 11's?

I using BP ultimate, with a 0.035" gap. Compression is about 150 in all cylinders so not great, but not bad

what do you reckon'd cause this? I tried another lead, but maybe I'll go and get a new set along with new plugs - hard to find a new dizzy cap around here though

A friend has a Morris Minor Woodie with a 1220 in it. He has the same problem in traffic with N9Ys- low speed fouling.
Either drive it harder or get hotter plugs.. GR reckons even N11Ys are too cold if running a Weber/Dellorto.

BTW Bosch W7DC (not W6DC) is equivalent to a BP6ES, or N9Y.

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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.

there is a good trick to do with the way you insert ya plugs but i batter keep quiet i need the power gains if i'm going to give DM a run
makka

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Anonymous moderation means the agro that is built up towards the mods isn't aimed at an individual (fewer "Makk" attacks). Less stress for mods means less moderator "retirements".

Makka, i reckon that "trick" is a load of ****** crap.

How can aligning them all up pointing in a certain way give a power increase

Damn ricers... should sell a booklet on eBay for 20 bux explaining how to do it.. theres a good entrepreneur job for ya.

I think that idea started with Yank V8s, not ricers.
You just mark the side electrode position on the plug, and put shims under to get each lined up the same relationship to inlet valve when tight.
I don't see many Mini racers doing it though.

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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.

If you go deeply into swirl characteristics and flame fronts etc there probably is something to be gained by presenting the spark so that it maximises ignition....

however...half the time with Minis you are flat out trying to get Lucas smoke through the wiring to the plugs

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"Show me the Mini!"

I would be investigating the #4 spark side, it ain't the lead (assuming you replaced with a known good one).....so it is the cap breaking down at #4 maybe

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"Show me the Mini!"

doc shhhhhhhhhhhh ya gave away another trick
and yeah i know a couple of people who do it and also a guy who set's up race cars told me bout it
and willy engage brain b4 fingers, at times make yaself to look like a total dick
makka

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Anonymous moderation means the agro that is built up towards the mods isn't aimed at an individual (fewer "Makk" attacks). Less stress for mods means less moderator "retirements".