OK, i tried to check around what is still safe to run on a XFR engine, but no conclusive numbers exept some think 22 psi is too much

i instaled some telemetry yeasterday , and at 6200 rpm, my boost peaks at 0.7 BAR, but thats only around 100MPH

on speeds around 60mph , even6200 prm produce only 0.6 BAr boost,

the diference i guess is from the forced induction at higer speeds,

any info , coments , ideas will be appreciated, i want to try to get 1 BAR boost, i curently have a 2.56IN pulley, 65 mm.... on charger

thanx

0.7 BAR is 10 PSI , for reference

outside temp on the day 32 C, 90F,

so your boost peaks at top of 3rd gear.. that's about right. you're not going to go much higher without upgraded crank pulley and there is no way you're going to see 22 psi ever.. not pessimism, just realism. unless you find someone who makes a much larger aftermarket supercharger. if you find that info, please share