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I just got off the phone with the guys over at Split Second in california...
They assured me that even though I plan on making 20 psi constant, maybe 23 psi max, that the MAF sensor will work...
however it will keep sending the signal value from the 16 psi Cell to the ECU...
They assured me it won't stop sending signal or get messed up or anything, it just continues to hold the value from the last cell.
this isn't so bad, because you can watch the laptop and see when it gets to the 16 psi COLUMN... what you would want to do is program by RPM at that point... so you would change the values for the MAF signal adjustment vertically up the 16psi column to make sure your max boost isn't leaning out.
So, you hit 16psi very quickly in our 92 saab only for a moment around 3000 rpm i guess, then right past that to 20... so you would tune the MAF cells in the 16psi Colume for 3000, 3500, 4000, 4500, 5000, 5500, 6000, 6500 rpms in the rows... assuming you held 20 psi steady through the entire RPM range under max boost...
that sounds pretty adjustable still to me... if your boost tapers off in the higher rpms you can adjust those cells as well...
He sounded confident it would work for my friends 92 saab and based on our conversation, I will be hooking it up just "for fun"... as it's a good little unit for a wide range of vehicles.. might as well own a spare. Takes only a few minutes to hook up so, why not.
As far as changing out the "modes" of operation are concerned... he said that they are set from their factory only to work in one specific mode... and that the PSC-001 model is meant to only work in "vacuum / pressure" mode....
I didn't ask what the other boxes were for the other modes, and he didn't suggest another one to me specifically since it sounded possible to tune for 20psi with the 16 psi box calibrator.
I figured I'd finish up the research on this just to answer all my own questions :)
, Tue, 16 Nov 2010 12:03:16
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