So i was cruisin around today and decided to get on it. I did a 4th gear roll and next thing you know my boost guage goes pass 20!, i look at the peak on the boost controller it said 25lbs. I got a 14lb spring in the wastegate but on the dyno is would creep to 16lbs. So i turned the boost all the way down to zero on the boost controller and it'll creep to 17lbs. What should i check for besides leaks on the vacuum lines? Boost controller i'm using is, Blitz SBC-ID, wastegate is tial 44mm. Peakboost ramhorn manifold.

 

since i lowered all the values on the boost controller and it didnt jump to 25lbs, im guessing the boost controller is at fault?

 

Sounds like it. Double check all of the settings and lines. It shouldn't spike that high just out of no where.

 

i'm willing to bet the controller is hooked up wrong.

 

IN is connected to vacuum log, OUT is connected to top of wastegate, side wastegate is connected to vacuum log. It worked fine on the DYNO. but all of a sudden this happens?

 

ttt