A fuel pump of 180lph can delivery 3 litres per minute, which is 50ccās per second. At that rate, a 70 litre tank would be gone in almost 24 minutes. At 100mph, you could cover 38 miles.
So why install an uprated fuel pump? Surely we just need a decent FPR?
Why does the Supra have a 290lph pump?
Its basically the same engine configuration. 3.0L twin turbo.
These numbers dont add up. Are we being duped into uprating a fuel system which doesnt need to be? (Iām only the messenger, and not sent by god)
If you plan on upping the boost, then really to get any decent gains you need bigger injectors. To support the flow that bigger injectors will draw you need a bigger pump. The stock pressure reg gets overwhelmed by a bigger pump and so you end up needing a decent fpr that can flow more to stop that happening when the injectors are only opening a little, eg at idle etc.