bad vibration,I have no clue,HELP!!
#12
Senior Member
RACING JUNKIE
Thread Starter
Join Date: Sep 2007
Location: Montvale, VA
Posts: 1,431
I think I may have found my vibration.I talked to a guy at Strange Eng. and was was talking about critical speed and jump-rope.Don't know if ya'll ever heard of that before.Anyway,with my small 2.5" dia. d-shaft (52.5" long)and the rpms(6600 on the tach thru the lights) I'm turning he seemed to believe that it was causing my d-shaft to "jump-rope".I believe he may be right.The factory frame on my car has a real small tunnel that the d-shaft runs thru,that combined my the off set on my pinion(to the pass. side)puts my d-shaft about 3/8" from my frame tunnel.Well...I know that's pretty close but it has never hit before,plus there shouldn't be ANY side to side movement with a ladder bar and diagonal link setup.I know a panhard rod has side to side movement,but I don't see how a diagonal link cause have any,or very very little.Any who,I have a witness mark on my d-shaft pipe and the edge of the tunnel where it has hit! :shock: BUT,the mark doesn't go the full circumference of the pipe,it's just a scuff about 2-2.5" long.If it was hitting and riding it,it would be all the way around the pipe,right?Maybe she is playing jump-rope on my after all.And my vibration is feeling the pipe jump over,smack the frame and coming bak and forth.Oh well.that's the best I can come up with for now.Anyone got an opinion on this?I'm wide open to suggestions.
#13
Senior Member
RACING JUNKIE
Thread Starter
Join Date: Sep 2007
Location: Montvale, VA
Posts: 1,431
Allright.Let's get back to the tires :roll: I put her up on stands and run it up to 6600,my shift point in 3rd gear(DISCLAIMER:That was STUPID and DANGEROUS.I know.But,I am STUPID and DESPERATE right now)My pass. side slick looked like a belly-dancer :shock: My buddy said it was jumping up and down about an inch!Put it on the bubble balance and it showed to be balanced.So,ya'll were talking about a tire seperating.Is that what has happened?They have nylon cords/belts in 'em,right?I'm not for sure.What causes that and does anyone have any slix for cheap?
P.S. Please don't run your car up on that stands like I did.It was very scary and now my seat cover has to be washed ops:
P.S. Please don't run your car up on that stands like I did.It was very scary and now my seat cover has to be washed ops:
#15
Senior Member
RACING JUNKIE
Join Date: Sep 2007
Posts: 4,137
no such thing as a 33 x 16 inch slick that is cheap. :?
Do you know anyone who has a set that will fit your car...you could borrow em and make one pass to see if that is it before dropping the cash on some more.
Do you know anyone who has a set that will fit your car...you could borrow em and make one pass to see if that is it before dropping the cash on some more.
#17
Senior Member
RACING JUNKIE
Join Date: Jan 2006
Location: La.
Posts: 2,890
Originally Posted by olds48
Allright.Let's get back to the tires :roll: I put her up on stands and run it up to 6600,my shift point in 3rd gear(DISCLAIMER:That was STUPID and DANGEROUS.I know.But,I am STUPID and DESPERATE right now)My pass. side slick looked like a belly-dancer :shock: My buddy said it was jumping up and down about an inch!Put it on the bubble balance and it showed to be balanced.So,ya'll were talking about a tire seperating.Is that what has happened?They have nylon cords/belts in 'em,right?I'm not for sure.What causes that and does anyone have any slix for cheap?
P.S. Please don't run your car up on that stands like I did.It was very scary and now my seat cover has to be washed ops:
P.S. Please don't run your car up on that stands like I did.It was very scary and now my seat cover has to be washed ops:
I have a friend who bought 14.5X32's and they hook as good as GY's or Hoosers.
Zip.