Quote: Originally Posted by
dansrt4 
Still with the s2/s3 injectors with a return line. I pretty much figured around 19-21 would be about it and it is. No dyno till i get injectors would be a waste of money and dyno queening till i get them.
Huh, that returnline must really make a big difference.
Well, here's my dilema now.....I am also running the 680s (stage 2 no toys currently) on my 3147, but no returnline, just a walbro 255. I just installed my wideband yesterday to see where my afr's are before turning up the boost. I'm only running the 10 lb spring in the wastegate for now, so I was expecting my a/f to be similar to my previous stage 2 numbers (10.5-11.0).
This is definately NOT the case, the first pull I did, I got 12.5-13.0. I quickly backed off and double checked my settings on the afc-II, all zeros, check.
Ok, I tried again and got an 11.xx for a split second but the rest of the time it was 12.0-12.7. Not cool.
The w/b reads 14.7-14.8 idling, so it seems calibrated. I'm just wondering if this is how it's supposed to run at this low of boost. Honestly, I never had the stock turbo running this low, so maybe it ran like this before, but I doubt it. All I know for certain is that at 19 psi on the stock turbo, it was 10.5-11.0 before leaning it out a bit with the afc. I'm just worried to turn the boost up now and risk running majorly lean to while trying to see what's going on.
Suggestions anyone? Do I turn the boost up to see, or do I start trouble shooting the fuel?
