Before we get into the tips on how to quiet things down, lets talk about some common reasons why ANY brand fuel pump may be loud.
5 reasons CO2 Boost Control is the best Boost Control Method.
Boost is only as good as it is controlled!
If you are running an external boost controller or electronic boost controller on your modified or race turbocharged vehicle, you may or may not have realized there are a TON of options surrounding Boost Control. Everyone has their own preference on controller and setups, but one thing holds true. CO2 boost control will absolutely change the way your racecar reacts, spools, and runs! Oh yeah, by the way... This works on any boosted engine. 2 cyl, 4 cylinder, 6 cylinder, V8, V10, even a rotary!
Turbo Oil Seals: Turbochargers are a fantastic way to add HUGE power to any powerplant, however, if the system is not designed properly you can spend a lot of time and money repairing turbos and chasing issues. Before we dive in, I want to make sure everyone is on the same page of how a turbo oil seal works. It is actually not a seal at all as you would expect. A turbo oil seal (there are two, one on the compressor side and one on the exhaust side) is actually most similar to a gapless piston ring.