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Part Number 12576416: INJECTOR, Grand Prix, w/Supercharger 2004
(RPO L32)

Can anyone tell me the base flow rate (and at what PSI) this injector is?

Thanks
 

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Not quite...thanks though.

There should be a number like 31 lbs/hr @ 43 PSI (3 bars). Usually injectors are flow rated at 43 psi if its omitted (this is kinda the standard). Increasing pressure gets you more flow.

Can't seem to find what the stock injectors flow rate is. Dealer couldn't tell me. goodwrench.com couldn't tell me. Can't find a number to call GM Powertrain. Why is this info so hard to find?
 
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