warr or anyone that knows

[evo]

I have a question is it normal for boost to drop down in this pattern in our cars, 1st gear hits 20 psi and drops to 16 psi by redline, 2nd gear hits 20 psi and down 17-18 by redline and the rest of the gears are fine maybe third drops to 19 psi.

My mods are as fallows buschur turbo back exhaust, ebay o2 housing, k&n filter, jdm mr dv, halllman pro boost controller, flashed ecu, ams lower intercooler pipe, 680cc injectors, and walbro 255 fuel pump.

I want to know because I am puting in Buschur Racing 20G-9LT Turbo and geting reflashed realy soon. I am also using t-bolt clamps because I want to make sure everything is in good working conditions when the car is on the dyno, specialy not leaking boost.

[Warrtalon]

Yes, because there is more load in higher gears, so the boost should peak higher, hold longer, and taper less. Lower gears don't have enough load to maintain full boost for long.

PS. T-bolt clamps don't ensure there are no boost leaks - only a boost leak test can ensure no boost leaks, so keep that in mind.