Results 1 to 2 of 2

Thread: LNF Pressure RPM Table

  1. #1
    Senior Tuner metroplex's Avatar
    Join Date
    Apr 2013
    Location
    Detroit, MI
    Posts
    1,077

    LNF Pressure RPM Table

    I've been tuning my SHO and it got me thinking about my SS/TC. The LNF has desired air load, but I never found a solid correlation between the DAL vales and boost. So I recall the pressure rpm table. Looking at it, it seems to be a pressure ratio limit table. I looked at the compressor map for our K04 and it seems we flow the most air at PR 2.4 with a 58% efficiency and about 180k turbo speed, still left of the choke line.

    Would it be possible to set the 4k+ RPM Pressure RPM table values to 2.4, then set DAL at WOT for higher number say 240, and let the PR limit cap off the boost? I was able to do something similar on the EcoBoost with great success.
    Last edited by metroplex; 02-06-2017 at 08:44 PM.

  2. #2
    Senior Tuner cobaltssoverbooster's Avatar
    Join Date
    Dec 2008
    Location
    Nevada
    Posts
    4,452
    iirc if you do it that way it wont lower boost with the wg it will close the throttle plate erratically until boost reduces bellow the cap. Test it out
    2000 Ford Mustang - Top Sportsman