Bleakley
Proven Member
- 403
- 96
- Jan 29, 2017
-
Pittsburgh,
Pennsylvania
Two 255LPH HP pumps WILL flow more fuel than one 450.
Edit: I knew it was more, but wasn't sure HOW MUCH MORE..
This is conservative / to be safe. Looking at a couple flow charts and cross-referencing:
At 12 volts, two 255's flow ~350lph, that's ~50lph more than a single 450 @ ~70psi (~26psi boost pressure) - which flows ~300lph @ 70psi
12 volts, @ ~80 psi (~36psi boost), Two 255's flow ~300lph. One 450 = ~275lph
The higher the voltage, the pumps start doing A HELLUVA LOT better. But I wanted to keep this conservative.
Edit again: Note - this is for Walbro part #'s GSS341/GSS342 for the 255's and #F9000267 for the 450. If you want me to upload the charts I referenced, I can do that.
Edit: I knew it was more, but wasn't sure HOW MUCH MORE..
This is conservative / to be safe. Looking at a couple flow charts and cross-referencing:
At 12 volts, two 255's flow ~350lph, that's ~50lph more than a single 450 @ ~70psi (~26psi boost pressure) - which flows ~300lph @ 70psi
12 volts, @ ~80 psi (~36psi boost), Two 255's flow ~300lph. One 450 = ~275lph
The higher the voltage, the pumps start doing A HELLUVA LOT better. But I wanted to keep this conservative.
Edit again: Note - this is for Walbro part #'s GSS341/GSS342 for the 255's and #F9000267 for the 450. If you want me to upload the charts I referenced, I can do that.
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