What makes this intank 255lph pump different then others? Why is it recommend higher then other 255lph pumps.
Another question, is the BBK AFPR boost sensitive like the Aeromotive AFPR?
What makes this intank 255lph pump different then others? Why is it recommend higher then other 255lph pumps.
Another question, is the BBK AFPR boost sensitive like the Aeromotive AFPR?
Not sure but beautiful car! Here is a pic of mine!(clone)
it will suport a little more than most when at high pressure....i made 516 rwhp with mine
Mike
Not sure about the 340.
The 341 has the inlet, in-line with the outlet.
The 342 has the inlet 180deg from the outlet.
Though given the pumps are so small, this doesnt make much difference. I think they all flow the same though.
Drops right in place of the stocker with no modsOriginally Posted by Krwy
Has a higher flow rating at higher pressures than a standard 255 (like the GSS 307) In testing the GSS 340 actually outflows the standard 255 pump in every aspect regardless of pressure but the biggest gains are noticed when pressure goes above 50 psi
All fuel pressure regulators that have a vacuum diaphragm (BBK, Aeromotive, Accufab, Kirban...even the stocker) are boost sensitive to a 1:1 ratio......for every pound of boost fuel pressure rises by 1 pound. This is where the GSS 340 pump comes into play. If your static pressure is set to say 43 psi, and you make 10 pounds of boost that means the pump will have to be able to supply enough volume at 53 psi fuel pressure.....and that volume level can be pretty high when running big injectors so every litre of fuel counts on a lot of combos and can be the difference between happy head gaskets and unhappy headgaskets.
Some quick numbers from a test article I have:
GSS 307 (low pressure 255):
233 lph @ 40 psi
199 lph @ 60 psi
GSS 340 (high pressure 255):
244 lph @ 40 psi
217 lph @ 60 psi
if you need one i have a good one just pulled cause i went to a sumped system
Let me know ill make you a deal
Mike
I thought they stopped making the GSS340?
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