A little while noticed a strange noise coming from my car when I come onto boost. Its like a squeeling noise. Other than that the car seems fine.
I fitted a boost gauge the other day and saw that when it makes this noise it is boosting to 20psi sometimes slightly over! It then holds about 14. Im running a stage 1 map. It only does it if i put my foot flat to the floor in 2nd or 3rd from about 2000rpm and let the boost come in. If it is any higher say 3000rpm it will overboost normally to about 17 psi and then hold 14 fine which is how I would expect it to be all the time
Is there any reason it would be boosting this high. I was thinking maybe actuator? Its a zlet turbo, vxr manifold and vxr actuator lol. Ive set up the acutator as shown on here i.e. close it, tighten nut till it hold in position and give it one more.
Can anybody help?