Tire Pressure Adjustment for above sea level | FerrariChat
Buy

Tire Pressure Adjustment for above sea level

Discussion in 'Technical Q&A' started by edworak, Oct 13, 2008.

This site may earn a commission from merchant affiliate links, including eBay, Amazon, Skimlinks, and others.

  1. edworak

    edworak Karting
    Silver Subscribed

    Jun 10, 2007
    107
    Genoa, Nevada
    Full Name:
    Ed Dworak
    #1 edworak, Oct 13, 2008
    Today, I had four new tires mounted on my 308. The owner's manual and tire specs suggested 33 PSI cold. I live at 6500' above sea level and 90% of my driving is between 5000' and 7500' above sea level. Even the dealer that mounted the tires was at 5000'. Should any adjustments be made to the tire pressures to adjust for altitude?
     
  2. MarkPDX

    MarkPDX F1 World Champ
    Lifetime Rossa

    Apr 21, 2003
    15,111
    Gulf Coast
    #2 MarkPDX, Oct 13, 2008
    Whatever your gauge shows is the differential between what's in the tire and ambient.
     
  3. FandLcars

    FandLcars F1 Rookie

    Aug 6, 2006
    3,057
    Tempe, Az
    Full Name:
    Rick Schumm
    #3 FandLcars, Oct 14, 2008
    +1. The tire gauge reads "gauge pressure", ie, pressure above barometric pressure. 33psig (gauge pressure) at sea level is the same as 33psig at any other altitude.
     

Share This Page