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Electronic Boost Controller Setting Help

Muffins 34

By Muffins 34,
in Engines & Forced Induction

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Muffins 34 Rookie

Muffins 34

Posted
Posted

Have recently installed a Blitz SBC Type S Electronic boost controller into my GT-T. I've blocked the boost sensor line so it will no longer cut but now as I try to increase the boost over 7-8psi (aiming for 12-14psi) I tend to start getting flat spots throughout the rev range. Has anyone had this problem that can help me out?

Cheers in advance.

Badgaz Experienced

Badgaz

Posted
Posted

Not by voltage directly. Voltage is used to calculate TP. TP is the load axis on the fuel & ign maps.

So yes, but no. Same voltage on the AFM at different rpm will calculate a different TP.

my tuner has talked about increasing the resolution of my map, i figure its something to do with this calculation....does that sound right?

GTSBoy Grand Master

GTSBoy

Posted
Posted

No. You can arbitrarily set the value (TP or rpm) of any column or row. So, if the max TP that you load up to is, say, 100, but your map has columns up to 160, then you could rescale all the columns so the last one was maybe 110, giving you more resolution. Alternatively, and more commonly, your last column might be 160, but because you've wound up the boost you are working up to loads of 180 or so. Then you might rescale to stretch it out. That would be the opposite of giving it "more resolution" but might be what your tuner meant. It means that you can explicitly tune for the loads you are actually running, instead of running off the end of the map and letting the ECU extrapolate what fuelling or timing you want from the last row (which is what it does by default).

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