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injectors+ AFC hack vs. FMU

Old 11-17-2003, 07:02 PM
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Default injectors+ AFC hack vs. FMU

I am plannin on turboing my d16y8 and I have been reading about the pro's and con's of FMU's and AFC hack'a. I am plannin on running between 6-8 psi on stock internals, what would be better for this set up. An AFC or FMU?

-Aidan
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Old 11-17-2003, 09:12 PM
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Default Re:injectors+ AFC hack vs. FMU

AFC because you have no way to tune the FMU.
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Old 11-17-2003, 09:24 PM
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Default Re:injectors+ AFC hack vs. FMU

Don't you feel like a broken record broken record broken record broken record broken record broken record broken record broken record broken record broken record broken record broken record broken record broken record broken record?

I swear this question gets asked 5,872 times a week.
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Old 11-17-2003, 09:42 PM
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Default Re:injectors+ AFC hack vs. FMU

Originally Posted by d16y8turbo
I have been reading about the pro's and con's of FMU's and AFC
I dunno about that...
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Old 11-17-2003, 10:27 PM
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Default Re:injectors+ AFC hack vs. FMU

well the timing advancement caused by the AFC, although it seems like it can be fixed by a BTM, has me leaning towards an FMU. As well as the fact that an FMU would cost less. But I want to have a good setup, and I could save up a little money and go the AFC route if I was sure I could run it witout causing detonation (My motor is not exactly young at 158700 miles).

Another issue is that I have NO IDEA how to tune an AFC so that might be a slight problem.

any guidance would be appreciated

-Aidan
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Old 11-17-2003, 10:34 PM
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Default Re:injectors+ AFC hack vs. FMU

Even the worst tune on an AFC is better than an FMU IMO. Most people don't use BTM's with the AFC. I just retarded my timing a few degrees. It's simple. You can get an idea of where to set the AFC by looking at the "post your settings" thread. That should put you damn close to where you want to be.
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Old 11-17-2003, 11:50 PM
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Default Re:injectors+ AFC hack vs. FMU

so you don't need a btm with vafc? hmmm i think i know my problem now. are yu supposed to adjust your timing when you install the vafc? if so to where?
(sorry for the thred hijacking)
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Old 11-26-2003, 01:17 PM
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Default Re:injectors+ AFC hack vs. FMU

U cannot adjust the timing using the AFC.... at least not directly. You can adjust the "initial" timing at the distributor.
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