I was wondering what values other SR20 owners got on routine engine compression checks. After only 120 hours of by-the-book-operation, two cylinders are at 72, two at 74 and the rest above.
Wonder if this can be considered normal, so which values did you get?
Also, a while ago I posted a question if anybody had installed Gamijecors on their SR20, unfortuntunately without response, so once again, any experiences yet?
compressions in the 70’s at 120 hours, I would first suspect that the engine was taken off of mineral oil before the cylinders were completely cut in. I know that the factory says that it is ok th change to multigrade after 25 hours but I have had better luck in our fleet by keeping them on mineral oil until the first 100 hr. inspection