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alternatives to standard coilpacks?

kwazza11

By kwazza11,
in Engines & Forced Induction

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kwazza11 Rising Star

kwazza11

Posted
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hmm well i've lost two in the past two weeks, mabye the problem runs alittle deeper? i'm running r31 early eccs coilpacks and igniter with an r32 ecu, do you think the later model ecu could kill coilpacks? the igniter and coilpacks look identical to the 32 variaty apart from different electrical plugs on them. they stop working when they get hot only, so they dont entirely die (give it an hour and it comes back).

Cubes Grand Master

Cubes

Posted
Posted

Whats the condition of the spring inside the coil?

Apparently these can crisp up a little causing problems.

Maybe thats what the problem is?

The spring gets hot looses its tension and doesn't make a proper contact.

GTR-Ben Proficient

GTR-Ben

Posted
Posted
GTR's are much better, as there igniter module provides much stronger spark. ND4SPD was running stock coils and module when it made 500rwkw, so it's more than doable. Pity they didn't make the GTS-t's/GTT's as good:(

Are you sure the ignitor is actually different on the GTR..? I think you will find they are the same.

The Alchemist Collaborator

The Alchemist

Posted
Posted

mine shat themselves after 75000km went to split fires, compared them on a bench test to a known good RB coil and the difference was HUGE. The gap jumped by the spark was maxed out to 35mm, on the bench tester, and RPm wound up to 5000rpm and the thing was still sparking a big thick spark. Std RB coil couldn't hack it past 30mm and the spark was noticably thinner and weaker.

Not to mention no more break downs under boost :P

kwazza11 Rising Star

kwazza11

Posted
  • Author
Posted

hmm well it seems i've got only .2v at the igniter on the cylinder thats not firing (no 4). i take it the igniter is on the earth side and acts as a big resistor to tame the voltage going through the ecu? so i'd guess its the contacts inside the coil getting too worn. sound feasible?

SeriesIIGTST Mentor

SeriesIIGTST

Posted
Posted

I've only had one coil die, #2 on my SeriesII R33 and i've been making over 300rwhp for a while now...fingers crossed the others don't follow suit...i've already sussed out splitfires if they do though :uh-huh:

GTR-Ben Proficient

GTR-Ben

Posted
Posted
how can u test which coils may be breaking down?

If it's breaking down at idle. Just take a plug of each coil until it makes no difference.

E.G, it will be running on 5 cylinders. When you pull the wrong plug it will run on 4, pull the faulty one, it will run on 5 still.

Abo Bob Grand Master

Abo Bob

Posted
Posted

It wont blow up. The problem with the testing is that they very often don't work only intermittantly (spelling :(), also the consult will not see a problem even when it is actually happening.

I think you need to assume that they all need replacing or fixing because if one or two are stuffed now then another one or two might go soon just when you thought you had fixed it.

Cubes Grand Master

Cubes

Posted
Posted

I'd imagine coils are a little like engine water hoses.

Once one goes the others follow soon after.

I had one develop a pin hole at the back of the head a few weeks ago. Since then 2 others have gone. All the little b*stards that are hard to get at.

If mine ever go i'll spend the extra $$ and get the good ones.

GTR-Ben Proficient

GTR-Ben

Posted
Posted

Well thats the way I have always done it.. on all my Skylines, and it's normally 1 or 2 that go, and you can normally find it on idle and pinpoint it.

I have never had to replace the whole lot on any Skylines in the past 5 Years or so.. :cheers:

I would like a nice set of spitfire coils.. but I can see better things to spend the money on.

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