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copbait73 copbait73 is offline
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Join Date: Nov 2003
Location: Chesterfield IN
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Originally Posted by JFairman View Post
The chart doesn't include the intercooler used, and the intercooler cfm airflow or outlet air temperature either... thats very important when figuring "Compression Ratio vs BOOST - Knock Control"
All true, getting into that level of detail would make the chart very busy but you do have a very good reading on the impact of adding a charge cooler when you compare the two factory TURBO motors. Apparently the factory's testing of their basic intercooler allowed a .75 C.R. increase.
In their paper they identified this addition upped the power and improved fuel economy 2-3%.
Additionally, if you look at the factory TURBO racers you see a two point C.R. increase with their large, highly efficient intercoolers plus twin plugging.
Old 03-08-2008, 03:17 PM
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