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07-19-2007, 12:21 PM | #1 |
Member
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62 Chevrolet, STILL No Traction
I am very much afraid to even bring this up... actually stalling for a week now.
Car is back together. I did EVERYTHING I was told to do... including spending every last cent I will ever see, on chassis related components that are permissible in Stock. Moroso front springs Loose, firm control arm bushings Thousands of dollars in QA1 adjustable drag race shocks MANY thousands of dollars in state-of-the-art wheels and tires MORE thousands of dollars on light weight disc brake components ( already had the 2.83 Jerico, aluminum flywheel, aluminum soft lok clutch ) I also relocated the upper control arm at the housing, about 2 1/4" upward. The difference ? At least now, I don't have to let off the gas pedal in first gear. Engine actually hovers at around 6200 RPM, until the car catches up. So, I started scouring the Internet, looking for a couple good diagrams and brief, direct pointers, as to where a person needs to have the "instant centre", yadda yadda. What I found, is that like everything else about this hobby... that elusive information, will cost $100 - $200 ???????????????!!!!!!!!!!!!!!!!!!!!!!! IE, books, programs, ect. My problem appears to be that the rear tires aren't receiving the neccessary intial "hit". Yesreday, I did a full series of measurements. Here's what I came up with: ( it's a factory "4 link" ) Distances from ground: lower mount at housing... 8.75" Upper mount at housing... 19.75" Lower mount at frame... 12.125" Upper mount at frame... 19" Rear rocker to ground... 12" Front rocker to ground... 9.5" Lower control arm length... 23.75" Upper control arm length... 13.75" The lower mount at housing, is located approximately 1 1/2" behind the centre of the drive axle. The upper, 4.5" behind. Car has 119" wheelbase. Weight distribution is 50/50 Total weight, with me, is 3750 pounds Rear tires are 29.5" X 9" M/T "stick" compound... front actuall effective diameter 27". From my calculations, the point of intersect of the two "imaginary" lines extending forward of the two rear control arms, is located: 53.5" ahead of rear axle centre line... 16" from the ground. SURELY this is enough info ???!!! Can someone PLEASE advise me as to what might be wrong, and where it should be ? ( please PLEASE don't ask things like shock settings... I understand enough to have them adjusted for lift, ect. ! Tire pressures have been moved from 13 - 19 pounds ) I just don't get. EVERYBODY else gets traction... I get laughed at ( can you tell I'm at my wit's end with this thing ? ! )
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Aubrey N Bruneau 6409 C/S 62 BelAir sport coupe, 409 HP 409 |
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