ISM fuel pressure

Topic: ISM fuel pressure (Read 1423 times) previous topic - next topic

ISM fuel pressure

January 24, 2021, 12:55:31 pm

At idle my fuel pressure is 150 psi.
I think 25 psi is better.

The fuel pressure @ 150 is not stable, it fluctuates rapidly, plus or minus a 25 psi swing.

Fuel pump pressure regulator?
Fuel pump check valve?

Any suggestions?

Thx

Tim

Re: ISM fuel pressure

Reply #1 – January 24, 2021, 01:32:08 pm

Cranking   25 psi
1200 RPM   120 psi
2100 RPM   150-180 psi

Affiliate Notice

ForeForums is user-supported. When you purchase through some links on our site, we may earn an affiliate commission at no cost to you. As an Amazon Associate I earn from qualifying purchases.