Hey guys,I need help again.My car has just rcently developed a vibration.This is how it happened last time I went to the track:
1st round qualifying: Burnout and pass were fine.No vibrations at all
2nd round qualifying:Burnout:1st gear ,fine shifted into 2nd,fine,shifted into third,still fine.Just when I was about to let go of the linelock and stab the throttle to roll out I felt the vibration.It felt like severe wheelhop!!
Car has ladders and coilovers and does not wheelhop.
Made the 2nd round pass and everything was fine,no vibrations.
BTW.when I do my burnout,I hold each gear at 4-4500 rpm,until I go to roll out ,which usually hits 55-6000.Going down track I shift at 6600 rpm and cross the line at 66-6800.
1st round eliminations: Felt the exact same vibrations,at the exact same places as before during the burnout.We went over the car real good betweens round and could find nothing,that is the only reason I wasn't scared to go ahead and drive it,plus it did fine at speed.But,on this pass right before I shifted in to 3rd the vibration started and it was BAD!My car has 4" side pipes that dump right at my door and it is loud,I have seen people in the stands plug their ears when I'm doing a burnout.I wear earpluge just to drive it in the 'hood when I don't wear a helmet.But the
vibration was bad enough that I could hear seemd like every body panel on the car chattering.It was so severe and steadily getting worse,as I stayed in it,that I just lifted for fear that something would explode.
But what is it??!!I have checked everything Ican think of.Everything concerning the ladder bars and coilovers is tight and fine.Nothing bent or whatever.Drive shaft and ujoints appear to be un-hurt.Motor and tranny mounts are fine.Wheels are fine and tight.Didn't lose any rimscrews or wheel weights.I even checked to see if maybe an innertube speprated on me :shock: I CANNOT find a thing.The ONLY thing that seems suspect to me is the tranny yoke,it seems to have a little play where goes into the tranny.Just a very little bit,but everyone else that has looked at it says it is the normal amount of play.I figured there would be none????Any suggestions??This one is really working my brain,and I wanna go racing.But,I can't go like this 'cause I'm afraid it gonna shake all my Bondo out :shock:
ops: :lol: Thanks for ANY ideas at all Eric