fuel pump

fct

Known Member
Senior Member
Nov 15, 2003
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kluang,jb,spore
compare this two pump
80l/h @ 0.3bar
60l/h @ 3bar
for injection application,which is better?
pressure is more important or the l/h?
wat if a car is fit with a 60l/h @ 3 bar internal pump in fuel tank and connect to a 80l/h @ 0.3 bar external pump near the engine bay after the fuel filter?
is it good?
or wat if from in tank pump tee-off
-one connect to engine (as original connection)
-one connect to external pump then to engine(need a check valve or not for this connection after tee-off and after external pump?) :unsure:
and then connect the external pump to a on/off switch.
only run the low pressure external pump when high boost/in tank pump 'kong'
;)
hope some expert to give some words.
 

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engine is pinging when the weather is hot, all smooth when it's not.
took the sparkplugs out and realized the mixtures are too lean

what can i do to overcome this? fuel regulator? pump? bigger injectors? just the simplest and cheapest way to do it.
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