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Old 10-14-2014, 01:17 AM   #102 (permalink)
pgfpro
In Lean Burn Mode
 
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Looking at some data from last year at light load with outside ambient temperature at 75*F I logged a 13*F increase in IAT temps with around 0.9psi to -2.0 inch/Hg around 30:1 A/F. This is running my front mount A2A only. What's very cool is my coolant temps drop from 202*F to around 190*F. When my car goes into max lean burn it actually drops coolant temp and sees just very light increase in IAT. I also recorded engine bay temps. In max lean burn the engine bay temps drop almost 20*F. I can pull over and actually hold my hand on the exhaust manifold after max lean burn. At 14.7 A/F it will burn your skin off your fingers.

Of course everything is different this time running a two stage compound turbo system. So the results should be very interesting.

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