Ati Harmonic Damper Killing Oil Pump !?

[cobrAA]

My tuner had 2 gtr this year where the oil pump failed on the dyno.. he blame the ATI harmonic damper. both had it. one was a rr32 if I'm not mistaken but the other was a r34 with the good collar. He then warned me to go back to stock.

Is it the oem pump problem or is it known that the ATI might not be as good of a solution as people think?

Honestly, I blame both engine beeing 10yr old and pushed more than 500whp, maybe hitted limiter too many times, oem pump.

Asking the guru at Aus.

[R31Nismoid]

Plenty use ATI without a problem, plenty use OEM without a problem.

Old age, bad treatment and 10-20years of work (depends if its a 34 --> 32 motor), combine that with limiter slapping as well on a tune that is hard on timing on the limiter.

It's all a recipe for a failure of some kind be that oil pump or something else.

[cobrAA]

this is what I think also. I doubt I should be too worried about this.

[NoFigJamHere]

No.1 cause of oil pump failures in GTRs is Balancer Bolt INCORRECTLY tightened!!!

[KiwiRS4T]

No.1 cause of oil pump failures in GTRs is Balancer Bolt INCORRECTLY tightened!!!

Is that as in overtightened or not enough? Or some of each?

[Piggaz]

Is that as in overtightened or not enough? Or some of each?

My bet is not enough. That pulley bolt needs to be 500 nm (give or take a bit either side) from memory.