I have up for sale a pair of N1/GT2560R/707160-5 turbos in great condition.
Came off a R34 GTR, i was going to fit them to my vg30 but turns out it's a no go.
so my loss is your gain!
Location: Nelson Bay, NSW.
$1100 ono
It could be that you have reached the Air Flow limiter or "Boost cut", if that's the case its easy to sort out with nistune just open up your bin file and scroll down the bar on theft till you reach "TP Load Limit" set these to "255" or if your using the hex editer set them to "FF" this is maximum sume set it a lower so just above STD
Sounds like it is flooding check if the vac line to the fpr is full of fuel if it is, it needs replacing, also if it has been flooding best to replace the plugs because they will be coated in fuel residue.
Joe
if the skyline ecu is similar to the Z32 ecu then Air Flow Limiter it tripped when the AFM voltage exceeds 4.08Volts the only way around this is to get an after market ecu or tune the STD ECU i recomend Nistune great for self tuning but one can easily destroy a motor that way.
Joe