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RarlyL8 RarlyL8 is offline
Crotchety Old Bastard
 
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Join Date: Jan 2000
Location: Huntsville, AL
Posts: 14,082
Garage
Some of us old guys still tune by vacuum.
Vacuum levels at high speeds (over 70 mph) become meaningless due to drag which put load on the engine = boost.
Turbo type makes little difference in engine vac at cruise as the turbo is not under load.
Old 06-17-2013, 09:50 AM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #30 (permalink)