I took the GLH out for it's first trip longer than a couple blocks today. It runs great, but if I go wide open it feels like it cuts out at about 4000 RPM. The boost gauge shows 12 pounds of boost when it does this.
If I go easy on the throttle and ease it up in revs, I can get things closer to 5000 rpm without anything cutting out.
This is my first turbo, so I'm learning as I go.
It feeld to me like it's making too much boost too fast and the couputer is cutting things off.
I would appreciate any help.
Here are the specs on the car:
1986 GLH Turbo with Turbo I intake and turbo.
Ported exhaust manifold, 2.5 inch swingvalve, 2.5 inch exhaust, no cat, exits to a one chamber muffler.
MP Logic module #P4529871
Underdrive crank pulley.