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Old Dec 28, 2004 | 08:41 PM
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Nuzz
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From: Denver Ia
Default injector size

My 2000c5 a4 has all the bolt-on with a new 80mm bbk, ls1 stageIII heads and a mti G1 cam going in soon. I currently run a nx 150 shot, but might have to go down to 100 after the h/c change. I also have a 3.42 with a yank 3200. should I go to the 28.8 injectors also, or do I need bigger? Still have stock fuel pump also. thanks!
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Old Dec 31, 2004 | 09:34 AM
  #2  
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90 droptop
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Fuel pump is fine. I would upgrade the injectors. Scan the car and see what your duty cycle looks like. 28.8 or 30 will work.
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Old Dec 31, 2004 | 05:50 PM
  #3  
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From: Morgan Hill Ca.
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I have 28.8s in my 98 LS1 (stock). With the changes you have I would consider more than 28.8. I would go at least one size up. Or start with the 28.8 and get a scan of duty cycle and go from there. There are a lot of guys who would buy your 28.8s for their 99s and 2Ks. Any larger than a 30, and I would start looking at a fuel pump upgrade.
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