V6 Discussion and questions about the base carbureted or MPFI V6's and the rare SFI Turbo V6.

3.1 fuel injectors on a 2.8??

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Old Nov 18, 2011 | 02:48 PM
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FirebirdDude88's Avatar
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3.1 fuel injectors on a 2.8??

Hey guys, i have a quick question. if i put 3.1 fuel rails, and fuel injectors on my 88 2.8 firebird, would it work? would it give it a little more power? ive been told it would technically make it a 3.1 motor.
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Old Nov 18, 2011 | 06:51 PM
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Re: 3.1 fuel injectors on a 2.8??

Lol....they should work, but the most that will change is that you will probably run rich.
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Old Nov 18, 2011 | 10:15 PM
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Re: 3.1 fuel injectors on a 2.8??

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Old Nov 19, 2011 | 05:16 PM
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Re: 3.1 fuel injectors on a 2.8??

Same fuel injectors were used for a couple years on both engines... You'll be fine, provided you match the full set and don't mix them.

And no, don't swap the fuel rail. The ECM won't be happy and will have difficulty starting in the colder weather. And no, the only way to make a 2.8 into a 3.1 is to put in the 3.1 rotating assembly in the lower end of the engine.
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