I need some help on this situation. I have a 2000 civic si with a stage 4 clutch. Just broke in clutch in my gsr swap that I had previously in my si. Now, I have a b16a2 motor that I swapped in yesterday with about 50,000 mi and changed oil, bought new oem motor mounts, and changed some belts. Car ran really strong and hard for about a day. I was impressed until problems arised. I was driving and I decicided to test the power again. So I was 2nd rev to about 7k then to 3rd and then comes this loud sound or crack followed by and pinging noise. After that I let off and was like wtf?? Then I drove it normal and everything seemed to be ok until I got on the freeway. At around 70 or 80mph the steering wheel shakes. I use to go 80 up to 130 with ease on with the bad tires I have now. But don't think its the tires because I know its not. It was fine until the clanking noise.

The acceleration decreased a quite bit too. Its seems when I mash the gas it sounds like air seeping out. I don't know if its thre clutch, tie rod, axle or and exaust leak. I jacked the car and moved by driver and passenger side wheel and I hear a tiny clack on the pass side and it barely moves. Driver side is ok. I'm just having a lot of cunfusion to what is the problem. I've been searching and found minimal stuff like axles...etc.. So if any of you guys can chime in from your experience, its glady appreciated.

 

Changed the passenger axle and it still shaked. Found the solution. My tires were bad from the inside and showing thread so now I can drive 100 mph without wheel shaking.

Losing acceleration due to a stripped bolt that connects my A header to B pipe. Cars runs strong.