Dual Tank Fuel Pumps- What PSI Hobbs Switch?

[mzunino]

Might be a dumb question but I gotta ask. I am looking at the new Racetronix intank pumps and they have switches at 4, 7 or 15 psi. I gotta think 15 is the way to go, right?

 

[bad V6]

I would go with the 15 psi Hobbs switch. Mine comes on at 16.5 psi, there is no overfueling issue because the boost is ramping up quickly at that point.

 

[Racetronix]

15PSI for Turbo Buicks unless your motor makes over 500FWHP @ 15PSI.