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rx2tee's avatar
rx2tee
Explorer
Jul 19, 2013

2002 7.3 Ford Boost Pressure?

We have a F-250 4X4 with a 7.3 Diesel and 6 Speed Manual.
I use a scan gauge to monitor engine data.
We bought the truck new and it seems to be in very good shape but I am wondering where I can find what the Turbo Boost should be at a given RPM and throttle position.
(The scan gauge displays 4 parameters at a time and can be configured to display RPM, %Throttle Position, Turbo Boost in PSIG, and induction temperature if I am not mistaken.)

Thanks for any help.
Tow Vehicles

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  • ScottG's avatar
    ScottG
    Nomad
    Jul 19, 2013
    Nobody can give you exact boost at throttle position. There are just too many variables but there should be a maximum boost limit someone could provide.
  • Turtle_n_Peeps's avatar
    Turtle_n_Peeps
    Explorer
    Jul 19, 2013
    If I read your post correctly there is no correlation between boost pressure and % or throttle.

    IOW's I can have maxed out boost pressure at 1/2 throttle or I can have very little boost pressure at WOT.

    Turbo's are very load dependent for boost pressure.

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