At 140.000 mile oil started to look like well used trans oil only instead of bronze it was silver. The tin was cut before but that was not enough. I figured while it is apart I will do these upgrades. I really injoy these SWB 2.0L S's they really are a streaight shot of 911, not watered down, and am not looking for a diffrent feel so I just am updating it to the things Porsche found to help. The only "back dating" maybe a small hp gain I am doing is twin plugging the heads in an effort to take advantage of the early design. Frankly I hate having the lower valve covers cast for the plugs and not machined
they look like they were left half done
That is proably the dumbest reason to twin plug but there is some others, pass emmision, burn 91 octane, cool heads, I do not have the later carbs with the inrichner,etc. I also really agree with Ingo and went with later chain box's so I could run P-fed tensihiners. I know it will not "look right" but this is one of the first cars I am really building for me and the peace of mind is worth it
I wish I was where you are, sorting out the car instead of waiting on a machine shop
