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Old February 21st, 2006, 10:47 PM   #1
victorymike
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Default 2.5L fuel injector question

I have a '94 YJ with a 2.5L built by Killer"B" (courtesy of CC...thank you very much CC). Bored .010 over with a 4.0 HO throttle body. I have a leaky injector (just a bad o-ring).

If I had the money what would you suggest?
Buy larger injectors?
Buy new stock injectors?
Buy new o-rings?

What "size" are the stock injectors? I have 2 sets of spare injectors from 2 intake manifolds (1 set is from a '97 2.5L TJ and 1 set is from a '94 2.5L YJ).

Thanks in advance for any suggestions.

Last edited by victorymike; February 22nd, 2006 at 05:14 PM.
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Old February 21st, 2006, 11:22 PM   #2
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Injectors are expensive

O-rings can be had for 6 bucks for a set for all of them...

Injector o-rings can be installed in 20 minutes... and that's for a 4.0 when I did it
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Old February 22nd, 2006, 12:16 AM   #3
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I'd throw in the spares if they are correct - you already said you have the exact ones from your extra 94 manifold, so you know they'll work. Second choice would be to do the o-rings. You only went .010 over, so I don't think larger injectors will do anything for you unless you are going to shove more air into the motor or significantly increase its rpm range beyond the yield of the stock injectors.
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Old February 22nd, 2006, 02:56 PM   #4
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Thanks very much for the info. I'll just do new o-rings.
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Old February 22nd, 2006, 03:17 PM   #5
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Or, look up Cruzin Performance. They are on the west side of the state, and very well respected nationwide.

They will test, rebuild, and flowtest/match your injectors. Not that expensive.

I'll be sending the injectors from my Toyota over there soon...
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