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Kirkham Motorsports

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Old 12-15-2003, 10:36 AM
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Join Date: Dec 2003
Location: Gurnee, IL
Cobra Make, Engine: Kirkham #259
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Scott

The wiggle or hunting when you are going into turn 5 is a Bump Steer issue.... many cars have this and you need to address this issue with a Cobra since most of them use a tie rod end that is tapered into a steering arm attached to the upright.... should be a heim with cones and washers on top and bottom so you can move the steering arm up or down as the case may need....

Turn 5 is where you will notice the loading in the front more than any other place on the track and right fully so....

Keep the bump steer down to less than .005" per inch of travel....up or down from ride height

Also use the temp paint on the rotor..... paint H's on the vent holes of the rotor next to each other starting at 900 degree's then 1000 then 1100 then 1200 degree's.... then when you take the wheel off you will know where you are with the temps..... 1000 to 1100 degree's on the front and 900 to 1000 on the rear... adjust cooling and bias as needed....

It's normal to bleed the brakes before each session.... also keep the fluid sealed....

BTW Elkhart and Blackhawk Farms are the two hardest tracks in the country on Brakes.... if you get them worked out for those tracks you can go anywhere else and feel good about your brakes....
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