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Unread 02-20-2002, 09:11 PM   #1
Josh
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Join Date: Feb 2002
Location: Michigan
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EFI vs. C arb

I am in the process of building my shot 4.2L, I wanted peoples opinion on EFI vs. Carb. From what I have gathered the biggest advantage of an EFI setup is the milage increase and ability to run at steep angles, the second which is not to much being I wanna run mud. Any help is greatly appreciated.

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Unread 02-21-2002, 02:37 PM   #2
4wheel4fun
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I just recently replaced my carb (87' wrangler) with a Mopar multi-port injection. I could not be any happier than I am with the improved performance. About a 60hp gain (you already listed the other benifits). Another factor for me was the ability to pass smog inspections. I strongly recommend EFI and I recommend the multi-port over the TBI system. In my opion, the extra cost of the Mopar system is well worth it. The Mopar system is the factory system installed in new jeeps.
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Unread 02-21-2002, 03:47 PM   #3
Josh
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Thanks for the help. Do you know of anyone that has done a rebuild on the 4.2 and kept it carburated and went with an aftermarket intake manifold and such? Thanks again, and long live the YJ
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Unread 02-26-2002, 06:08 PM   #4
4wheel4fun
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Can't say I do. It really depends on your smog requirements. I'm not really an expert on Carb systems. While you are doing the rebuild, I would recommend putting a 4.0 head on your 4.2 block. Gives you about 40 more horses. Many places on the web to help you with the install.
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