ColoSR
Active Member
- Apr 25, 2018
- 425
- Boat Info
- 2003 Sea Ray Sundeck 220
- Engines
- MX 6.2L MPI Mercruiser with 2.2 Bravo III drive
The MPI’s are sensitive to pressure, you start losing top end once you drop below 40 psi. My mechanic said that you don’t notice it as much in cars because they don’t spend as much time at high rpm.