86 rx7 na
#3
DXW
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mine is faulty, the gas light comes on too late and I have ran out of gas several times. Since I was going to swap it out I thought I should upgrade to s4 t2 or fd fuel pump assembly?If not, why?
#4
Brap Brap Brap
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From what I've read you don't need to upgrade to a bigger fuel pump if your running all stock components. When you get bigger injector and start messing with fuel upgrades is when you want to get a fuel pump that puts out more fuel. As for the gas light coming on too late it can be the floater in the gas tank isn't working correctly anymore or the gas gauge isn't working anymore either... it also can be other things but those are two I know of.
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Engine, Not Motor
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If all you are doing is swapping the low level sender, then you can just swap that individual component. Leave your stock pump alone. The stock pump flows more then enough for your NA, which runs rich already from the factory. A TII pump won't do much of anything other then raise fuel pressure a little and make the car richer. That will just waste fuel and cost power.
A true CAI is a good idea, as is the radiator if yours is in need of replacement.