red16vdub
Veteran Member
Unless I'm mistaken (which I am often) 2620 bar less one atmosphere is 23.7 PSI, give or take. I've always understood that the safe boost limit for a VNT-17 is 22-24 PSI. Both turbos mentioned here were running more than that.
26psi was recommended for what my mods were at that time. I have egt/boost gauges and certainly didn't exceed or reach what the car was tune for. The turbo blew out the exhaust along with 80% or so of the oil, luckily for me zero engine damage. I cut my losses and dug deep into the piggy bank for a 17/56
Bajan