Cerbera 4.5 coil pack

[tofts]

They say High Spec. But can anybody say why?

I mean, I have measured the resistances of primary and secondary coils on as many packs as I have come across, and they are all the same. With this in mind, I Do have some hesitation as to the claims on the differences. Perhaps when you get them, you can measured the primary and secondary coils and compare to the budget set I know I have. Perhaps all the ones I have seen are just cheap and nasty.

There are two trains of thought here. We would either see a lower resistance and thus would be a lower voltage but higher amperage. Or, the other way around.

From memory the secondary coil is 5.7k, but don't quote me. I'm curious and will have to check tomorrow

J

[Jhonno]

I think it is just quality/potential longevity..

[Chuggaboom]

ukkid35 said:

Quick update - one of them failed after about four and a half years. Now replaced with a pair costing £31 inc p&p.

Also, it is possible to removed the coil packs without disturbing the fuel rail on a 4.5.

When they fail, what is the result ?

And what is the test for a failed one if the car still runs even if not very well ?

Always wondered as I was given a box of them in the spares bundle when I bought the racer....why would a race team keep them if they were duff ?

[ukkid35]

Chuggaboom said:

When they fail, what is the result ?

And what is the test for a failed one if the car still runs even if not very well ?

Always wondered as I was given a box of them in the spares bundle when I bought the racer....why would a race team keep them if they were duff ?

In my case there was no spark in one cylinder.

Ideally connect a spark tester, and swap HT leads to confirm.

Perhaps old ones were kept just like I've kept an old one that I've swapped out as a precaution even though still working.

[Jooles81]

Hi,

maybe this would be worth a try?

http://www.ignitionproducts.eu/en/msd-performance-...

I'm not sure if this is fully compatible though... Any thoughts?

Julien