50 trim tuning with scan tool/safc/wb

[millertime]

I went out and did some pulls in my car to watch knock at different boost levels on pump and didnt get any knock all the way up to 22psi, didnt want to go any higher though because my a/fr's were getting up into the 12.0s in the upper rpms. turned it back down to 20psi and it was up around 11.8-12.0 from 6-6500 pulling 0% but had to pull about 5-9% from 3-6k to get it to 11.2-11.5 afr's. car seems to pull better now, and at 40-50mph on the highway it will spin my dr's like there crapy street tires

What im wondering is what is the timing at typicly with s2 and a big turbo? I was seeing from 32*-22* depending on rpm/boost and obviously how much fuel i was pulling with the safc affected some of it. does that seem about right?

I know with my freinds dsm's if they run much more than 25* of timing in there setup it really kills the tq and pull of the car up top unless there running racegas? at least thats what they tell me? (dsm guys u know lol)

My friends scan guage is a new snap-on one that uses windows based o.s. on it so were going to data log the pulls to watch and see how its running. should make tuning pretty fun i hope.

Well let me know what you guys think!
-Jesse

[The Shadow]

Was that on 91? No knock because the ecu could handle the retard? Or no knock retard period?

[millertime]

Well im not sure exactly, i was driven and my budy was watching the guage but he said it was "all within normal timing specs". So i dont know if the ecu was pulling some timing to avoid knock? or if there just was really none of it at all? either way i was getting decent amounts of timing on pretty good boost for pump gas with no knock.

oh btw its 93 pump.

-Jesse

[The Shadow]

nice!