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Thread: Increasing TBI fuel pressure

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  1. #1
    Fuel Injected! mmigacz's Avatar
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    Quote Originally Posted by dave w View Post
    I agree with Mark.

    My secret information is to know the limits of the injectors. Injectors a have sweet spot they like to work at. Can't have the injectors cycling on / off "to little" or cycling on / off "to much".

    dave w
    I'm very new to this. Is the sweet spot measured by the injector duty cycle? If so,what the target range?

    FYI

    I'm running a 5.8L (yes a ford 351W)
    My set-up is from a 5.7L with 61lb/hr injectors
    15 psi of fuel pressure

  2. #2
    Super Moderator dave w's Avatar
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    Quote Originally Posted by mmigacz View Post
    I'm very new to this. Is the sweet spot measured by the injector duty cycle? If so,what the target range?

    FYI

    I'm running a 5.8L (yes a ford 351W)
    My set-up is from a 5.7L with 61lb/hr injectors
    15 psi of fuel pressure
    I mostly use the VE table values. When I'm doing VE Tuning, I like to keep VE numbers no higher than the low 90's (VE1 + VE2), and no lower than the low 40's (VE1 + VE2). Injector Duty Cycle is a good tool also, but Async fueling can be very frustrating when doing the data analysis using Injector Duty Cycle.

    dave w
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  3. #3
    Fuel Injected! mmigacz's Avatar
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    Got it, thanks!

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