C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

Upgrading Fuel Pump New Injectors?

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Old Jun 24, 2003 | 01:24 AM
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Default Upgrading Fuel Pump New Injectors?

If I upgrade to a higher output fuel pump, will I have to get rid of the stock injectors for it to make a difference?
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Old Jun 24, 2003 | 02:49 AM
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Default Re: Upgrading Fuel Pump New Injectors? (Southern Comfort)

If you install a fuel pump that puts out more GPH than the stock one, your fuel pressure will still remain the same to the engine provided you are still using the stock fuel regulator. It will just pump more fuel down the return line back to the tank. The stock injectors will satisfy up to a 400 HP engine provided you up the fuel pressure according with an adjustable regulator. Unless you have serious engine mods, there's no need to arbitrary replace the injectors. If they are leaking (black smoke and/or hard starting in the morning) or you have a lot of miles on your car, that might be a good idea anyway.

BIG JIM
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Old Jun 24, 2003 | 09:43 AM
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Default Re: Upgrading Fuel Pump New Injectors? (BIG JIM 54)

thanks Big Jim.
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Old Jun 24, 2003 | 09:55 AM
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Default Re: Upgrading Fuel Pump New Injectors? (Southern Comfort)

No, the stock injectors are more than adequate for us.
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