yes the spike has been covered many times. this is why we say make the boost flat to maintain high rpm turbo shaft stability. i run 20 by 3200 and 24 by 3500 and it goes 24 till 6k
tune review:
Dals should not be blocked in. the dals in the 100% column should be 255 after 3200 rpm the rest of the table should be well smoothed. like a stock table for reference everything is nice and smooth. if you chop it up then power wont be smooth and with the lnf/lhu they get temperamental with the timing as well.
pe enrich is good
timing still stock
traction control by gear still engaged. i would raise rpm by gear to 100 in all gears but 1st. 0 & 7 are neutral and reverse so those can stay stock as well. tune and fine tune then do 2nd gear pulls how you will drive it most often and move the 2nd gear values down to maintain traction.
max trq raise to 100 its more traction control nanny you dont need
max air load trq table 3500 rpm and up 100 and then interpolate the rest for a simple fix. (i curve my table into 100 to follow actual trq better in the model)
brake trq max to 100 if your going to autocross or big track race. it helps reduce power loss in corners.
optimum trq max load 3500 and up to 100 and smooth the table like the dal table smoothing mentioned before.
pressure rpm factor all 6.0
pressure limit set to 74
wgdc max 100
wgdc 100% load 5520 rpm set 100 and 6320 set to 110 to hold boost
copy p0236 range high and paste it into p0106 range high
take your main cam warm tables and copy them into the knock tables. this way when it knocks it keeps the cams where you command them.
and make the intake and exhaust base factor tables all 1 to lock the table into the warm tables. this will help get what you command.
cat cams are fine for a disabled cat warm-up cycle tune.
knock safety limit to 7200 rpm so if you knock you dont rev limit to 5k rpm.
not to tear up your tune but thats whats different from the norm