TTA - 02 voltage is 835 at WOT - Is that OK?

turbotaguy

New Member
Joined
Aug 7, 2006
Newbie here - I've got my TTA running pretty well now and just wanted to check on my WOT air/fuel. My scanmaster reads around 830-835 at WOT, is that OK?

Is there a conversion from Scanmaster 02 voltage to an A/F ratio?

My WOT run was at 15.5psi with 835 o2 voltage and 0 knock retard. Just looking to make sure the a/f ratio is good before I crank up the boost to 16.5psi where it should be (via adjustable wga).
 
Some will say on the rich side, generaly 790-820( stock o2 not real acurate) top off 3rd but you really need to look at Knock when you turn up the boost whitch will lower the o2s and if you turn up the boost turn up the fuel to be above at least 790 o2s via regulator or TT chip then when fuel doesnt take away the knock your at your limit HTH :smile:
 
At zero KR, its begging for a LITTLE more boost....Creep up on the boost and monitor O-2's :)

Then, you're ready for Alchy :D
 
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