what should the o2 be when tunning?

[84ttype-hotair]

going to the track this weekend what should i be shooting for ?
its on going to be on 110 oct with a tt race chip
thanks

[bmackinnon]

Hi 700's - with no knock retard...

[1chance]

Originally Posted by bmackinnon

Hi 700's - with no knock retard...

+1

[84ttype-hotair]

cool thanks
once i get my boost to where i want and
then do i add moor timing or take a way fuel?
thanks again

[bmackinnon]

I would start with leaving the timing alone, where Eric has it in the chip with no correction. Add boost and fuel, shooting for O2's in the hi 700's, until you start to get a teeny bit of knock. Then you can play the more boost and fuel/less timing game. Depends what turbo you have (whether you are going above it's 'sweet spot') and how much boost you're running. Typically, unless your running a ton of boost (like 26+ psi) you should make more power with higher boost/more fuel/lower timing strategy. Again, depends on the turbo.... most of our commonly used turbos will become very inefficient above 26-28 psi, and you might make more power at that level by increasing timing/fuel and not raising boost any further. That's how I would approach it...