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Hi all, I am thinking of going to the red 8.5 Magnecor ignation leads but I believe a lot of folks run Top Gun so...I thought I would ask for opinions - good, bad, which is preferred, the respective value for money etc.

My Eunos is still being built but no plans to change the stock engine so is it a worthwhile mod?

Wait to hear.

i just got some OBX-R leads for my mx today, these are 10.5 mm thick and are alot better then stock, not sure on comparison to magnacore and top gun, but i have heard that magnacore tend to break. i got these plugs for $60 from us ebay.

10.5mm

actually, i think they are 10.3mm either way they are thick lol very good quality too

I've run Magnecors in my Celica (twin turbo six) for years without problem.

I'm so happy with them that one of my first purchases for the MX-5 were the 8.5mm Magnecors.



They don't fit into the clips any more though...

Can't comment on the Top Guns though. Never used them.

i've got the blue Top Gun 8.8mm (i think) on my BPD engine, seem rather good & just still fit into thw holding clips.

No problems with my mangacores

I've had them 5 years

I am not sure why you need to use anything but a good quality std lead for a stock engine. Shelling out extra cash is not likely to give you any benefit.

Mr Morlock wrote:I am not sure why you need to use anything but a good quality std lead for a stock engine. Shelling out extra cash is not likely to give you any benefit.

The aftermarket ones are, more often than not, cheaper than genuine Mazda leads. You can get standard replacement from Supercheap or Repco; but then you have to ask yourself if you are still using a "good quality" lead.

Boags

The way I look at it is that I'm now certain that the leads aren't ever going to be a problem for the life of the car. Good peace of mind.

I think I have the 7mm magnicor leads (they are blue). I have had them for a couple of years no problems.

How many years do they last anyway???

How often do you replace spark plug leads? For a standard petrol car being dríven \"normally\" you probably never replace them. Where leads can show deterioration is for lpg installations- I had a Disco on gas and the popping and banging was fixed with a lead change. The Top Gun leads were made in Aust some years ago and I saw two of the plants that did them. Quality was good. Not sure where they are sourced now. But Boags is right- it is not always easy to know what is good and what is not.

At a very very rough guess, the standard leads could be changed every 50-80,000 kms to avoid any issues

my stock leads were buggered on 136---kms (unless changed by previous owner) but they were starting to fall apart i.e rubber bottom came off, and plastic piece also came off, car ran poor and liked to idle jump whislt having indicators on and turning, didnt like starting up when hot (quick run in to the shops) i put these obx leads in, and that has all changed. as for oem quality, it fell apart in the end lets see how long these ones last.

I've got Magnecor Blue leads. I used to run on three cylinders every now and then as they slowly wriggled their way free from the coil pack. Now i've got them cable tied down and all is well.