Rob it looks to me like you will be having some fun, the engine looks strong. I am doing the same thing limiting my boost to 18psi, the car is still fast.
you guys are funny. I run 16psi in my DD wrx and it's a fast car. 18psi in an 818 is going to rip.
A well stocked beverage fridge is the key to any successful project.
Frank
818 chassis #181 powered by a '93 VW VR6 Turbo GT3582R Go-karted Aug 5, 2016 - Then May 19+21, 2017
Tracked May 27/July 26, 2017 Build time before being driveable on Sep 27, 2019: over 6000h Build Completed Winter 2021