exhaust temp help

[Ed Wright]

Originally Posted by buzzinhalfdozen

No arguing that Tom with properly working wide band o2's fuel management is greatly simplified. If for nothing less than the increased response time they are a worth while addition to any tuning arsenal. The biggest issue I've seen is racers searching for that "magic AFR" basically there isn't one. Joe

Ain't that the truth? Kids come in for tuning read on internet message boards that 13-1 is the magic number, and that is what they want. Heck, 13.5-1 will often make big dyno numbers, seldom goes down the track as quick. Depends on the engine and fuel of course, but there is no magic number. Mine likes mid-twelves. (Air/Fuel ratio, not EGTs)