Evohunter - that's some great info you have there mate. Surprised that those reluctor wheels are moving. I changed my fibre seals on the timing covers, replaced the metal gauze thimble filters on both banks and replaced a leaking IVT solenoid valve - end result is a seamless wave of torque to redline.
This was all done despite the ECU never logging any fault codes. It just felt off. The seals are cheap. They are known to blow out under pressure on R35's. Same seals. I posted about it somewhere and i'm pretty sure i listed the part numbers. If you're unsure, it's the seals that go on the shaft that's inside the front timing covers. The seals are a stiff fiber circular seal with a diagonal slit.
The other seal i know of is the paper seal underneath that pistol shaped cover between the two intake cam sprockets and underneath the centre coolant pipe
Are you using 5w30 oil? How about the fly wheel? Was it fitted in the correct position/was the correct flywheel fitted?
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