5.0L (1979-1995) Mustang Technical discussions on 5.0 Liter Mustangs within. This does not include the 5.0 from the 2011 Mustang GT. That information is in the 2005-1011 section.

zex 100 shot, fuel pump?

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Old 02-26-2009, 12:09 AM
  #1  
tyler08
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Default zex 100 shot, fuel pump?

will the stock fuel pump do with a 100 shot?
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Old 02-26-2009, 02:13 PM
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15austin
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I would say no, dont even chance it. You can get bigger fuel pumps on ebay pretty cheap. I have seen a couple of my friends try to do the 100 shot NX kit with the stocker only to have a back fire.
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Old 02-26-2009, 03:29 PM
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mjr46
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is it a wet or dry kit??
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Old 02-26-2009, 07:22 PM
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tyler08
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its a wet kit.
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Old 02-27-2009, 01:57 AM
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luckythirteen13
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wet or dry, you still will need 100hp worth of fuel. go with a 255lph walbro, they used to be abotu $100 on ebay
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Old 02-27-2009, 02:56 AM
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302army187
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i spent $80 i think on a 255lb "high pressure" fuel pump, even got it over nighted to me for free because of some confusion.


i would not risk it, you dont know how old that pump is, and you dont want fuel coming in and out while spraying, or at worst dying off.


make sure you using colder plugs, pulling some timing (i run 12-14* base with 100shot) and running highest octane fuel you can get.
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