Driving Sports

Finally started the teardown on the Miata Time Attack project car. As our initial diagnosis showed, it was, indeed, a funked exhaust valve causing the low compression on cylinder number 4 (circled with orange, for your viewing pleasure).

Later this week the head will be shipped down to Delta Cam in Tacoma, where they'll replace the valves and generally add some hotness to the topside of our little 1.6 motor. In the meanwhile, I have to decide if I'm just going to leave the bottom end alone, or pull it out and give it a once-over, too. Hrm. Decisions, decisions.

Click the jump to see the complete head (lobbed off with the stock intake manifold still attached), in all of its diminutive glory.