TD06 20g Help
I recently installed a td06 20g on an E85 tuned 2009 wrx (I have tuned it since it was new). The old vf52 was running 20ishlbs till about 4800 which it took a sharp downturn, it just couldn't keep up. So I purchased a td06 and with an adjustable wastegate arm, it is noticeably slower spooling (to be expected). My problem is, I cannot get it to boost higher than 16lbs max at around 4500, this seems absurd to me for such a bigger turbo. I have shut the wastegate down to 0% cycle (100% dc), all the way through and it just doesn't seem to change the boost. I have checked all the obvious, boost leaks, boost controller problem, it works fine, tested with power source and vacuum. Turbo "sounds" healthy and spun freely when I installed it. Any suggestions? I can't imagine a really soft wastegate spring doing this but I have tightened it down a bit, I can still move it by hand pretty easily. Hopeing someone with some serious turbo experience has any suggestions. Bad Turbo?