You can, i asked for the evo8 maps to be loaded coz i though it was all good, but now i want the stock vr4 (1g map), my car ran better on the 1g maps but they are very aggressive on boost.
Starting with either map your going to play with the timing on boost anyway, so the advantage of using the right map for the motor, is in the cruise areas, spooling our slower turbos, and the timing when you've backed the throttle at high revs, it will actually suite the motor.
The evo 8 map on my motor was bad in the spool areas as on an evo8 the car is already on boost when mines spooling, so that area was really rich and no timing. Spools like **** in comparison.
Personally i think its stupid now, its a different motor. Id rather start with the map made to suit the motor's characteristics at cruise and the transitional areas.
Then punch in weak timing for the areas on boost, say 12* advance to be really safe. Set the afr targets, then wind up the timing and boost from there.
Well that's what i'm gonna do this week anyway.
The evo 1-3 maps are a bit softer on boost. Ive added a pic of whats meant to be vr4 rs timing maps, they are way too aggressive on boost for my car, the timing targets are in the high 20's to low 30's timing on boost, id say my car would be running around 15-18 degrees when i wind the boost up aroudn 20psi, i hope.
But using this map the cruise timing will be what mitsi thought is best are cruise and the transitional areas, i will have to play with the spool area to set the transition on boost to be later as im on boost around 3700, later than a stock vr4 rs the map was designed for.
So ill just take timing up top but leave at the cruise and spool areas. notice this has the high load cells at the top where as ecmlink has it at the bottom.