1995 1.8

[brewster]

hello all
I have a 1995 escort 1.8 dohc. I run circle track and and currently my shutter valves are disabled in the open position. I would like to know if this is hurting my performance. thank you in advance

[therieldeal]

I believe the ECU opens them around 5000 RPM so as long as you're running high RPM most of the time (and I'd imagine you are), having them locked open isn't hurting anything.