ok, so i had a missfire just like everyone else...
time for new coils...splitfires...but wait i thought....
my coils all meter out fine, there is no visible cracks or signes of cracking or heat marks or anything...they look perfect! and the philosophy of 'looks like shit, smells like shit, feels like shit...must be shit' concept always reigns true to me...so...
i actually stopped and thought about this for a while...and passed the issue to a electronics and power genuis i know...
we thought about the manufacturing method of the coilpacks and what they are all about...
Nissan coilpack are atransformer coil. the metal you see on the outside of them is actually a whole series of plates that run through the coilpack and form the centre of the transformer...meaning there is a shitload of wire wrapped around that core inside the pack. once the pack has been made, resin is poured in the plastic box and is cured. this resin can break down over time (as is happening) and a crack can actually form inside from the centre that is completely invisible (obviously as its inside the coil, duh)
now the rails that the coilpacks live on is grounded, and if the paint where the bolts that hold the coilpack onto the rail has come off, then the core/plates are grounded too...and if you have a crack on the inside of the coil in the resin then the spark will never leave the coil that it is charged in..it will just ground straight away!!!
so how do we fix this (and this works):
i have used M10 fiber washers on either side of the M8 bolts that hold the two coilpack rails in...and i have also put heat shrink around the tops half of the M8 bolt so that it is completly insulated. this has worked perfectly and i have just run the car up on the dyno will full load and no breakup!!!
this has made my day! i saved $500 and will potentially have changed the skyline world forever!
i will post some diagrames and pictures soon...i there are also some refinements to this concept i have come up with to further to make it more failsafe...
for the record, my packs are not taped up as i could see no external cracks...
UPDATE: sorry guys but this hasnt worked long term...im sorry i jumped the gun but i was so excited...