Originally Posted by
Reaper1
Considering that my very worn out 2.2 in my Shelby Z was giving me readings in the 110-120 range...yeah, this engine is done. You don't want more than about a 10% deviation across all cylinders.
Cylinder 4 has most likely a broken ring land, cylinder 1 probably a broken ring.
The cracks between the valves in the head are pretty typical. However, it's still recommended that the head be pressure checked. The pitting...eh...no worries.
The fact that porcelain has broken around the electrodes and you have a ground strap contacting an electrode on the plugs, this is BAD. I find it strange that the computer didn't cut out boost until 17#. That should have saved it.
So, yes, now you are going to need to build a new engine. Depending on how original you want to keep the car, I actually suggest building a 2.5L, leave it intercooled with the Garrett turbo and with a good calibration the car will be WAY more driveable. I found my TC OK around here in town but I had to rely on boost...so it was a point-and-shoot affair. That's alright, but being able to drive a little more smoothly would be nice and the extra torque of the 2.5 would certainly help.