Regular Gas vs Super
Tolero Apto Victum
Joined: Jul 2007
Posts: 9,669
Likes: 37
From: Woodlands TX
Pro
Joined: May 2007
Posts: 699
Likes: 0
From: Dallas TX
Race Director
Joined: Dec 2006
Posts: 12,385
Likes: 2,906
From: Fort Worth, Texas
It takes longer for the pcm to switch back to the high octane timing table than it does to switch to the low one.
Burning Brakes
Joined: Jul 2008
Posts: 923
Likes: 37
From: Green Bay Wisconsin
Carbon deposits in the combustion chamber causes the knock sensor to not work as well? Why would that be?
The carbon deposits in the combustion chamber acts as an insulator and would raise combustion temperatures and contribute to detonation thus causing the knock sensor to retard timing.
The knock sensor listens for frequecy vibrations in the 6-8Khz range and is screwed into the engine block and in no way is in contact with the carbon buildup in the motor.
Douglas in Green Bay
