Forced Induction Finished Builds

Originally Posted by Wattles

Both are on 91 octane. My boost controller has two settings, 10psi and 13psi (both same tune with 91 octane)

Sebastian at Specialty Z said that he thought a bigger fuel pump could bump up the HP 50+ because the AFR (middle chart line) was showing a big drop in fuel pressure or fuel starvation at higher RPM.

Next step for me for sure. That will address the leaning out at 13 psi above 5k RPM