NGK Ignition Leads & Iridium Spark Plugs

Paul Murray · Post by **Paul Murray** » Thu Nov 04, 2004 1:37 pm

I have just recently replaced my old ignition leads with a set purchased from
Ross at mx5mart. Also replaced the old plugs with the Iridium ones. A really
noticeable difference to the general running and performance, smoother idling
and quicker acceleration. Would be interested to hear other members comments
Paul

Grant Munro · Post by **Grant Munro** » Thu Nov 04, 2004 2:15 pm

Replaced my leads also with Ross's after reading on a UK web site that a
hesitation from idle on was almost always caused by the leads braking down
and the new leads certainly alleviated it.
Interested in comments on the plugs though.
Grant

Alan Fisher · Post by **Alan Fisher** » Thu Nov 04, 2004 3:40 pm

Yep - I put a set of repacement leads on and the car definately ran
'sharper' - seemed crisper - my partner noticed independently of prompting
which is always the acid test as to whether it is in my head...

I did put in a set of NGK extended reach plugs at the same time so I guess
it is difficult to be objective..

On a different note: Dead batteries - DONT GIVE UP on it! I got back from a
month overseas and my alarm had drained it totally, not even a glimmer of a
dash light, flat. Jump started it, drove for an hour, let it idle for 2 or 3
hours - turned it off and then went to start it and not even a flicker...

All conventional battery wisdom says that a 10 year old battery that wont
take ANY charge over such a period is toast. Priced up a new one, got
depressed, bought the lowest output trickle charger I could from the
warehouse for about $25 - put it on that for 2 days - put the battery back
on the car and it J U S T started. Not holding out much hope at this point I
drove the car always mindfull that it might not start after I turned it off
- but over time the battery "recovered" - took a week or so of driving - but
is now up to full strength - holds plenty of charge over time and is as good
as new - has been for months. So dont give up - batteries that seem beyond
saving can be nursed back to full health... (something to do with absorbtion
glass mat batteries only being able to accept very low currents - look on
the net for more info)

Hope this helps someone...

Alan

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DBM58 · Post by **DBM58** » Thu Nov 04, 2004 4:26 pm

After I had fit a new set of them, I recall reading recently that the irridium
plugs could not make any difference in the MX5 for a technical reason that
eludes me at the moment. Can anyone clarify this?

Regards

David Moughtin

Jeff · Post by **Jeff** » Sat Nov 13, 2004 2:19 pm

MX5s use a wasted spark ignition so that the spark travels in reverse on
one of the plugs. Iridium plugs are usly just on the tip, unless you get
the pricier dual-iridium/platinum version.

On Thu, 4 Nov 2004 16:26:10 +1300, David Moughtin <Davidm@Snackmate.com>
wrote:

[...]