Okay, so yesterday we took our civic down to elite to make a few pulls on the dyno. We got about half a run in and had to stop short due to extreme amounts of white smoke coming from the exhaust. We immediatley figured it had something to do with the headgasket. When it's at idle it runs fine but when its under acceleration it smokes real bad. So today we did a compression test and the first two cylinders read 150 and the 2nd two read 180. What would you guys suggest the next plan of action would be to get this taken care of? I'm going to do another compression test, and probably a leak down test tomorrow to double check the numbers and start trying to figure this thing out.

PS: the hb made 175hp at about 5500 rms at 8 lbs of boost before we had to cut the run short. It's a sohc with pistons/rods and a greddy kit on it.

 

i know...replace the headgasket

 

we are planning on doing that today. What should we torque the headstuds down to and what other possible problems could there be?

 

Torque spec for ARPs are 72lbs. I dont know if your running arp or oem.

Also before you install a new headgasket, check the head for warpage or you will keep blowing headgaskets. Remill if necessary.

 

Yeah we are going to check it for warpage first, then replace it. thanks