Update 9/10 Done! Only minor issues remain, like hooking up the heater and installing the correct muffler.
This is where any 911 engine owner may end up some day.You - or someone driving your car - will shift from 2nd to 1st instead of 3rd, or 4th to 3rd instead of 5th, and you'll end up with a nice collection of conversation pieces and paperweights where you used to have an engine.In my case, it was a friend of mine driving the car at an autocross, and I got to watch the execution. I'm guessing that the engine saw ~13k RPM, which floated the valves and caused them to hit the pistons.
It was obvious that something was wrong with the car, but I wasn't sure what.I got it home, and did a compression test: 0 lbs of compression on #6, and 120 to 145 on the rest.A subsequent trip to the local shop revealed that I'd bent all of the valves. I started down the road of a valve job, but then decided it wouldn't be worth it in the long run, and opted for the upgrade instead.
So, I started doing my homework. I knew Instant-G (Dr. Steve Timmins) offered a 3.6L conversion kit.I got lucky on the 911 list and found a rebuilt 3.6L engine from DC Automotive, so the stage was pretty much set to do the conversion.
|'77 911 w/2.7||2470||165||15.0:1|
|'77 911 w/3.6 (chip, cone filter & exhaust)||2470||280||8.8:1|
|'90 964 w/3.6||3031||250||12.1:1|
|'90 964 w/3.6 (chip, cone filter & exhaust)||3031||280||10.8:1|
|Pelican Parts 911 FAQ|
|All figures are stock unless otherwise specified|