so my evo 8 is tuned to 23 psi...... when im in WOT it peaks at about 24/25 then drops down to 23 like it should.
but today i was in 5th at about 4k and decided to go WOT and im boosting at like 28 psi! any ideas?

 

Don't ever wot in 5th.

 

im guessing because of engine load. not a good idea to WOT in 5th at that rpm