What lb are these injectors? - Mustang Evolution

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Old 04-13-2015, 06:47 PM   #1
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What lb are these injectors?

Anyway to tell what these are? I bought the car last summer and really dont know if they are oem or what. Learning as I go peeps. Of course this pic may not even be of the injectors. But would still be nice to know if anyone has any ideas. Thanks in advance.

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Old 04-13-2015, 07:34 PM   #2
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19lb stockers
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Old 04-13-2015, 08:29 PM   #3
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Thanks

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Old 04-13-2015, 08:35 PM   #4
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At what point on any modding that I do should I change these and to what size?

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Old 04-13-2015, 08:44 PM   #5
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Originally Posted by Vinnie02 View Post
At what point on any modding that I do should I change these and to what size?

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They are fine until you are running boost of some kind
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Old 04-13-2015, 11:49 PM   #6
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At what point on any modding that I do should I change these and to what size?

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The 19 lb injectors were replaced with 21 lb injectors in 03-04 cars. Ford discovered that the 19 lb injectors were above 90% of their duty cycle at wide open throttle... On a stock engine!
The 19's will support all of the bolt ons but they are going to be pretty much maxed out on their duty cycle.
On a street built NA engine (heads, cams, higher compression) I would use at least 21lb injectors and 24's would be preferable.
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Old 04-14-2015, 05:08 AM   #7
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So the 19lb injectors are good for the "normal" mods..cai, tb/plenum, exhaust, and stuff like that then and no need to change them until I get some kind of boost then?

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