Post by
480sx »
https://forums.nicoclub.com/480sx-u50548.html
Fri Mar 28, 2008 9:45 am
My ka-t was running like a freaken champ for 500 miles. Thats when i noticed my oil reeked of gas. Changed the oil, then went out for my first WoT full rpm run. Car ran incredibly, no misses, no bucking, perfectly smooth transition to boost.
10 min later as i was just lightly driving around cooling off my turbo i hear this light ticking. Had me worried so i decided to pull over in this culdisac i was near. While i was turning the car around the noise became horrible. I had poped my hood, and opened it up. By this time(about 1 min after i heard the orig noise) the noise was so bad i got in a huge panic and was like omfg make it stop. Turned the car off and towed it home. Ka number two bites the dust..
My only thought is my ECU tune was running rich. I was also running 2 psi over stock fuel pressure, but i cant see that making that big of a difference. I mean the rings were in OK shape, 160 compression across the board. If it was higher however im sure i would have been ok.
Just a lesson for you guys who are boosting worn out motors(any motor really..), check your oil constantly for the first 3000 miles of boost for signs of blow by. I know that i checked my oil at 100, 200, then at 500 miles. Between the longer interval, the 300 mile one, my oil became saturated with gas.