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^ dont mess with your timing w/o a dyno...you've been through too much to pop your engine for an extra ~30hp ...
I have a knock safety set up. If the sensor detects more than 3 Volts it starts pulling timing. I wouldnt get crazy with it without a dyno. Maybe another 3° at the very most just to see how it does. Just have to pay attention to logs is the main thing.
I went above 22 psi on a log before I changed turbos and it started freaking out. The map sensor is only good for 22psi. I've researched it which is why I purchased the 4 bar sensor. Car is in storage for winter but I plan on changing the sensor and getting back on the Dyno before race season starts.
A 3 bar is more then adequate for your turbo setup. That is good for -14.7psi to 30psi.
So, to answer your "why not go with a 4 bar" question. Resolution. Your haltech has a 0-5v span at best. Depending on the calibration curve you may get 4v to play with. You have to split that 4v up into even bits for 0-4bar. You will never see above 30psi so that last bar is a waste. You are also wasting 1v of your resolution. The 3 bar will be 1.33v per bar vs 1v for 4bar.
If the sensor detects more than 3 Volts it starts pulling timing
I gotta go back and rewatch, but the HPA guys did on knock detection webinar, and voltage amplitude of the knock sensor isn’t a good indication of knock or the absence of knock ... let me go back bc I don’t remember the reasoning / explanation.
Your car at the end of the day - solely my opinion but I won’t touch timing unless I’m on a dyno - way too many things can go wrong, quickly, and without recourse to pickup a few extra ft*lbs...
Alright guys so I finally got everything figured out on my car. Car has been back together and running since Nov. Of last year but sadly been in storage ever since. NO MORE SMOKE!!!! The FP blacks are doing amazing so far the car makes a whole bunch more power on 20psi and is a handful to drive even with the 15's and radials. I figured out the smoking problem and it pretty much had nothing to do with the turbos. The cheap a$$ oil catch can I had didn't have enough ventilation for a high hp turbo car. I upgraded the catch can to a very nice mighty mouse unit I bought from my buddy that came off his 1400hp drag camaro. After installing the catch can the smoke immediatly cleared up. I couldn't be happier with the car right now and it's going back on the Dyno in 2 days for tune touch up and to make some power hits. I'll post the results when I get done hoping for a 700 number. Nearly out of injector so I'm upping fuel psi a bit and hoping for a trouble free day.
