Shim the oil pump 5mm. I saw about 90 psi max oil pressure while cold with the oil pump relief shimmed 5mm, which is still in the safe range. This is without the factory oil cooler relief.
Try your local machine shops, one around here was willing to trade my old shims straight across for any size I needed. You can also order them here: http://www.cylinderheadsupply.com/valve-clearance-discs-25mm.html
The stock oiling system isn't as horrifying as people would lead you to believe. The system is very susceptible to oil starvation when run low on oil. The majority of 7M bottom end failures are caused by oil starvation, antifreeze contamination, or both.
I've pushed mine extremely hard on the stock oiling system without issues. I am in the process of installing a large plate oil cooler on the factory cooler circuit though. I always keep the engine slightly overfilled as to never let it get below the full mark, ever. Many on the forums will...
There is no external damage to the coil packs, and the plug boots fit fine. I borrowed a set from a friend's Supra and it fixed it. Should I try a used set from ebay or order new?
Edit: ordered is300 coils.
The plug wires are new-ish and I can switch the 1 and 6 wires at the coil pack and then I have no spark on number 6. I can't see what else it could be, since 1 and 6 fire together as a wasted spark system...
I was driving today and my 7m developed an intermittent missfire under boost. Within a couple minutes it suddenly developed a dead cylinder. I stopped to investigate and #1 has zero spark from the coilpack. Number 6 still has spark, so does that mean that the coil pack has to be bad and it's not...
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