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Old 08-20-2015, 02:36 AM   #68
Harey
Scooby Specialist
 
Member#: 270569
Join Date: Jan 2011
Chapter/Region: International
Vehicle:
'15 Foz XT & GT86

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Quote:
Originally Posted by katamari View Post
The stock tune uses cam phasing as internal egr. It opens the intake valve early and exhaust gases backflow into the intake to re-burn HC and reduce NOx. This happens under light load/partial throttle or what I would call "babying your car"
Interesting, I hadnt heard of that! Thats not good news, I thought with the egr deleted and the catch cans that the problem would be gone!

No more babying then
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