Quote:
Originally Posted by Tzu
Just going by the threads here, the fueling between the rev2b and the rev2.5 is identical as the it was just a fueling resistor change, you must be thinking of a 2a. Also, all else being equal (OL fuel, AFR, boost), the power is the same and the extra power comes from ignnition advance. I personally don't want to use that feature. Where is your discrepancy?
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There is no descrepency, just a lack of understanding. The ignition circuit upgrade implemented in the rev2.5/3 units allowed for better replication of the crank angle sensor (faster rise time of the leading edge). Which allows us to do things with the newer board that we could do with the older board. The board update costs $50 unfortunately. It may or may no be worth it to you. But most users seem to prefer v5 aggressive maps over the old v4 maps.