project black sheep

okay hey guys new to this so here i go. i have a 91 eagle talon tsi fwd bought the car as a project off a older guy replaced a couple thing water pump,timing belt the typical stuff.after that i decided to break it in took it out for a test run,ran fine.next day decided to go to the track everything was fine.ran the 1/4 in 13sec.ran it couple more times was fine.well was getting late start heading home from sr 35 on to fairfield rd,then all hell broke loose my timing belt snapped at 65mph.i coasted to a stop got out notince my belt was gone.later next morning pulled the head off all my vavles where on my pistons.i pulled the motor took it apart pulled the pistons,the number 4 was split in two.

Sounds almost like what happened to me, but my timing belt was perfectly fine, i dropped a valve instead.

what kind of belt were you running? and were you 100% that you adjusted all the slack out prior to timing it?

Personally i would use Gates over anything out there.

this will help when you go back together as well.

https://www.youtube.com/watch?v=7VIubwSxytk

I prefer the Gates racing belt as well. Next choice would be a genuine Mitsubishi belt. Did you replace the timing belt pulleys and tensioner?