Instant Center?????????

[chris2316]

Does Anyone Know Where The Instant Center Is Supposed To Be On Our Cars???? Is There A Formula Of What To Do If The Center Is Off?? Please Only Serious Replys Thanks!!!!

 

[DR BOOST]

-2 to -4....if its off, u need adjustable uppers. my car hooks best with -2

 

[pacecarta]

-2 to -4....if its off, u need adjustable uppers. my car hooks best with -2

thats pinion angle , has absolutely nothing to do with instant center

 

[DR BOOST]

damn your right. oops!

 

[pacecarta]

you need to set the car on flat surface and carfully measure the linkage arm bolt hole heights and distance then on paper with a scale drawing of the car and those points plotted draw a line throught the front and rear bolts of the upper arms and then a line throught the front and rear bolts of the lower arms and where they intersect is the instant center , not uncommon to find stock G body cars with the center actually 4 feet behind the car ,
to find idealyoull need to find the exact balance point of the car and straight up from there to a line drawn through the cam

one fix was the lower arm relocating brackets like the southsides had and i think metco too that drop the axle mounting point

 

[chris2316]

Thank You , This Stuff Is Pretty Involved But I Heard It Makes A Big Difference In 60 Ft Times.

 

[pacecarta]

try this site

BaselineSuspensions.com.........Launching A Drag Car



http://www.baselinesuspensions.com/info/4_LINK.pdf

 

[chris2316]

Thats A Big Help Thanks

 

[DCVING 6]

I'd talk to Filly, I think him and Ken worked on this a bit with his car.