Turboed240

Well, I finally got the car into the 13's this weekend with a 13.6 at 99.6mph runnin on 11psi. It did it 3 times then, after the 3rd run, I heard a ticking coming from the motor. It sounds like either a bad bearing or a bad valve. It's a tapping noise that only appears above 2500rpm. Kinda crazy though if it ends up being a valve cause I rebuilt the head with Greddy valve springs, rocker stoppers, etc...Oh well...any ideas on what else could be my problem. Car doesnt seem to stumble at all. We took the valve cover off and we didnt see a busted rocker.

PSM

How is your idle after that incident? Also what are your EGT's at full boost by redline?

skyline_123

Once my engine was making somewhat the same noise yours is and it ended up being my timing chain tensioner which I'm told that the 240's are known for that happening. And then one time a chunk of one of the belts (not on the 240) had came off but still connected to the belt and would slap things all around it. Hope that helps.

Sean

Turboed240

Welp, turns out i got a spun rod bearing. Luckily, it didnt get to the point where it damaged anything else. So, needless to say, the motor is coming out of the car. I am putting some eagle rods in it. I am replacing all the bearings with clevite bearings. I am putting some JE pistons in it and replacing all the lower seals as well as having the crank knife-edged and balanced. Figure, might as well do it while everything is apart. 35 psi, here I come...lol!

WILDACEXXX

damn bro u're ish gonna tear the pavement after that...keep up the good work

-HyJynX-

Good luck wit it bro

Turboed240

Thanks! I appreciate it. I'll kepp you guys updated with pics and whatever else I come across that could help anyone out.