Quote:
Originally Posted by asshanson
Most injectors are rated at 43.5psi. However, some specific to a platform can be rated at that pressure, like a lot of vette injectors are sold with a flow rating at 60psi, probably just for marketing purposes.
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s10's(aswell as all 4.3l vortec motors)use a weird type of injectors called spider injector, and they run 60+psi of fuel pressure. They are VERY picky about fuel pressure when a pump starts getting weak they WILL NOT start(i know from experiance T.T). im sure there are other platforms that use higher pressure too, i guess Vettes use the modern day injector so this might not even be related. just thought i would share something.
