B18C1 Integra Greddy Turbo Problem
Hey guys! Think you can help answer this turbo problem. I installed the Greddy turbo kit into my Integra GSR about 2 years ago, and it's been driving fine and boosting pretty good. I recently got it back on the road and still runs great, but just a couple days ago I noticed that it was having a hard time boosting as if it was leaking boost. Triple checked and reinstalled all the vacuum lines, fittings,bov, and i/c pipes. All couplings were in-tact. It seems to be building pretty good boost when on the highway, but not too responsive when in 1st & 2nd gear. I noticed that the turbo has been making a humming noise from the intake side of the turbo. No side to side shaft play, but minimum in and out play, which seems pretty normal, and also no grinding or ringing from the turbo. Could it be a bad turbo, or maybe the turbo housing is loose from the manifold?