Subaru Enthusiasts Car Club of the Sierras - View Single Post

Dean · 2007-12-03, 10:49 PM

Race fuel is not required. 91 octane can take a little more timing, especially at altitude.

The knock sensor does little good in open loop/higher RPM where most power is made, so it can't protect you when you need it. This is why logging and the right gauges are critical.

EGT, Wideband 02 and some form of determining HP/torque is how you determine how much timing to use.

There are a bunch of references in a thread I started a while back and haven't gotten back to.

http://www.seccs.org/forums/showthread.php?t=5829

2007-12-03, 10:49 PM	#3
Dean Señor Cheap Bastarde Real Name: Dean Join Date: May 2003 Location: $99 Tire Store Posts: 9,294 Car: $.04 STI Class: Fast,Cheap & Reliable=STI Deal, did somebody say Deal? Oh, Dean, yeah that's me.	Race fuel is not required. 91 octane can take a little more timing, especially at altitude. The knock sensor does little good in open loop/higher RPM where most power is made, so it can't protect you when you need it. This is why logging and the right gauges are critical. EGT, Wideband 02 and some form of determining HP/torque is how you determine how much timing to use. There are a bunch of references in a thread I started a while back and haven't gotten back to. http://www.seccs.org/forums/showthread.php?t=5829 __________________ I am a Commodore PET --- Now get off my lawn you kids...