Spray on @ ~5PSI ?

[BEATAV8]

Hey Guys,
I just switched from 100 octane to 93 and SMC alky.

Just wanted to see where some of you start to spray. I started out at 11PSI and was having 2 problems.
1. I was getting some transitional knock when the boost came up really fast (for example when nailing it from a roll in 2nd or 3rd gear)
2. transition to spray on was not always smooth - I could tell when the alky started to spray cus the engine would lay down a bit.

I kept turning the "spray on" point down and it got better and better. I'm at 4-5 PSI now and all is good. Smooth as glass even under part throttle boost. Is this where most folks start to spray?

couple of other things about changes to my tune:
translator settings went from +12% WOT fuel with 100 octane (800mV) to -2% WOT fuel with 93 and alky (800mV)
went from 21 PSI on 100 octane to 23 PSI now with 93 and alky and still seem to have room for more boost.
went from 21 degrees timing with 100 octane to 23 degrees with 93 and alky and may have some room for more timing too.

 

[TurboBuRick]

Mine is set to come on @15psi and max @20. Thats with a 93oct extender extreme chip. With that 100oct chip I would say your going to need to start spraying sooner just what your doing. The methanol is taking the place of fuel at wot therefore cutting back the translator wot sound right too.
You know what your doing but its time for a widband o2. I need one too.

Today I had a 792mv @80mph 19psi boost. No knock. Spraying meth.
Its a hot day for testing though. One thing I am not sure of is the o2 targert when spraying meth.