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fuel injection question

Old 11-01-2007, 03:38 PM
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motorman524
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Default fuel injection question

Can I use a 19 lb maf with 24 lb injectors and not run rich? I will be using an a9p pcm, gt40 p's with 1.7 rockers and an e303 cam. any help will be appreciated.
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Old 11-01-2007, 03:55 PM
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FivePointOhh
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Default RE: fuel injection question

you need a tune if you do that. so....no
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Old 11-01-2007, 04:02 PM
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motorman524
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Default RE: fuel injection question

How much do tuners cost. cant really find one on the internet for a 91 mustang.
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Old 11-01-2007, 04:09 PM
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stang8689
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Default RE: fuel injection question

Just get the right one
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Old 11-01-2007, 04:11 PM
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motorman524
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Default RE: fuel injection question

the right one what? mass air meter. that will still need a pcm tune. i was trying to get around that somehow because tuners are expensive. I just cant find one
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Old 11-01-2007, 04:48 PM
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schwindty
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Default RE: fuel injection question

ORIGINAL: motorman524

the right one what? mass air meter. that will still need a pcm tune. i was trying to get around that somehow because tuners are expensive. I just cant find one
YOu need a MAF calibrated to 24lb injectors......or if you have LOADS of time for learning a tuner like a twEEcer and a laptop....then you can go that route to figure everything out. From experience they are a bitch to learn it took me all winter to play with it to a pont whereI was comfortable baggin on it.
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Old 11-01-2007, 05:16 PM
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primetime5.0
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Default RE: fuel injection question

your 19's will support that setup.
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Old 11-01-2007, 05:40 PM
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ahittz24
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Default RE: fuel injection question

ORIGINAL: primetime5.0

your 19's will support that setup.
read again, he has 24lb injectors and a 19lb MAF, Just spend 125 and get a C&L meter for 24# injectors.
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Old 11-01-2007, 06:11 PM
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motorman524
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Default RE: fuel injection question

I could always use the 19's though if they will work. I was under the impression that upgraded injectors were needed with a hci swap. If I dont need to upgrade that would be great.
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Old 11-01-2007, 06:24 PM
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schwindty
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Default RE: fuel injection question

19s are good for about 280-300 at the wheels. The 300 mark is pushing their limits though.
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