New Engine
#1
My car's got 150k miles, and the compression isn't exactly awesome anymore. I want more power anyway. I'm thinking that I'll either rebuild and port mine (the NA path), or buy an old junked TII s4 or s5 and rip the engine and everything out and rebuild it+port it (the turbo path). Obviously the NA path is easier, but which is the better value for the money? Is it difficult to put the TII ecu into an NA? What's the best 1/4 time I could get on a streetable NA?
#10
If I was in the market for a j-spec S4 TII motor, what would I expect to pay? Mine's fine, but I noticed a bit of what appeared to be oil in the coolant when I changed the antifreeze this fall. Maybe not oil, but some kind of black sludge was left on the bottom of the bucket when I poured out the old coolant at the recycle station at the county landfill.