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Post by millerracing on Jun 30, 2014 9:16:58 GMT -6
What would be a good starting setup on a 4 link coil over car on a big 3/8 mile track 23 degree banking. Just wondering what size springs, air pressures, ect. Any help would be appreciated.
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Post by flipflopoo1oo on Jun 30, 2014 11:08:18 GMT -6
Poundage of the car would help to start with! As you get lighter by class but with more area of down force applied it works about the same when moving! Floated rears, pull bars or fifth arms, front or rear perched or clamped, coil overs on all 4s, single lowers up front or A-arms! Loads of factors with different placement and ratios to deal with! Standards are applied in air as well! I have run a basic set-up of one design on all cars that wins! Check out my other post in all classes to get some ideas of your own as to what you wish your car to do! A 1700 is a bit different than 1900! 25 lbs. can make or break a good setup at spring or at the wheel! A j-bar car I assume! Z link I hope! Swing arm you wish! Just kidding! We need more details and not just name and year as many have been altered in clipping repairs! If looking for drive-ability its still old school and still works for us to win in other 4 link classes! 100 split up front with stronger right to hold (through the cross) left rear! More weight on the left ft. weaker spring as being compresses to coil bind to help it roll when nosing! This plants right rear as the cross changes just by lifting the throttle! Now you can turn on a dime with no waiting to plant, roll, or transfer! 25 stronger left rear and loaded by left side weight and cross to have movement within the scale of rise in rolling down on the right while holding left rear! Right steer and more drive right side than loaded left to even traction when rolled and the lift of right bite to stop steering to get off the corner! Extreme neg. caster and a healthy rear percent on the left rear is needed in this set-up but it has won for us the past 35 years on any car! Even first night out or mid season new car! JUST ADD HORSES AND A FEW POUNDS LOW LEFT AND REAR LEAD to move moment center and roll center to the left rear wheel area as the center of rotation and the lead does not sling being in the center of things happening while on your way to the front! Shocks are soft rt. ft . stiffer left by 2. Threes or fours on the rear, No split valve shocks used in this set-up as to other ills working against what it wants to do with mother natures help! A neg. 4 to+ 4 left and 6-8 lowers and right 10-15 left uppers and 15-18 right! 5-7 inch rake on j-bar at low even pinion hole! The angles should even out when the car is rolled over to get back quicker off the corner! 400 lt.500 right up front with coil overs and 150 left rear and 125 right! Lots of factors needed yet as to not get to spending senseless money point!
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