How would i go How would i go about tuning my turbo to only build 38PSI? i have a waist gate on that pops about 40PSI and drops me all the way back to 30. I need to maintain 38PSI, My old turbo would ride 38 full throttle. But this one just hits 40PSI drops 30PSI back to 40PSI drops 30PSI.
Thanks in advance, 2005 5.9 with 67/67 tater built turbo.