Fueling & Injection Fuel Pumps | Injectors | Rails | Regulators | Tanks

Do I need an Injector Upgrade?

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Old Oct 29, 2008 | 10:11 AM
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Default Do I need an Injector Upgrade?

I still have the stock injectors in my car. With the mods in my sig. is it time to upgrade injectors?

thanks guys
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Old Oct 29, 2008 | 01:25 PM
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Is the shot wet or dry?
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Old Oct 29, 2008 | 02:03 PM
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Wet
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Old Oct 29, 2008 | 02:13 PM
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I would think so. Is your car tuned? Tuning software will tell you what duty cycle your injectors are running and then you will know wether or not its time to step up.
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Old Oct 29, 2008 | 02:50 PM
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it just has a mail order tune on it...what should i step them up to??
and what about the fuel pump??? should it be upgraded?
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Old Oct 29, 2008 | 06:59 PM
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I'm not sure about your fuel pump. Don't know enough about LT1 cars fuel systems. I have a friend with an LT1 and he is using stock LS1 injectors 28.8 with a CC503 cam(i think) and stock ported heads. He also sprays a 125 wet shot. If I am not mistaken, he is still using the stock pump.
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Old Oct 30, 2008 | 05:28 PM
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I would start thinking about upgrading to at least 30's right now. They will be MUCH better than your stock multecs, and give you a bit of headroom if you decide to get any more mods later
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Old Oct 31, 2008 | 09:57 AM
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ok.
when you upgrade injectors do you have to get your car retuned?
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Old Oct 31, 2008 | 11:56 AM
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yes, you will need a tune when changing injectors
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