View Single Post
#3: 08-18-2013, 09:58 PM
 
 iNVAR
iNVAR's Avatar
Title: Nerd^2
Rank: Donating Member
Location: NYC
Car: 05 LGT 5MT Stg2 custom
Posts: 4,428
iTrader: (15)
Send a private message to iNVAR Find all posts by iNVAR Reply With Quote
Who told you it runs lean? The cobb maps are generally pretty rich. The reason people use the 91 map while pumping 93 is because of knock. The 2 gap in octane gives a safety margin.

11.1 isn't rich, and the O2 sensor won't read below that at WOT anyway so you have no idea how rich you're actually going without a WB.