Monday, July 15, 2013

Bump Steer Adjustment.

After a solid second place at Sunset I was left thinking I needed more from the car.  I made some phone calls and my friends at Grisdale Racing Products loaned us a bump steer gauge.  I am embarrassed to say how far out of adjustment the right front was.  It was bumping in so much that the dial indicators just kept spinning around.  This is very bad for race car handling. 
Bump occurs when the suspension travels up or down.  The wheel either toes in, or out.  In a perfect world it stays straight.  We weren't so lucky.  After much adjusting and reassembly, we ended up with .005 bump out at the front of the wheel.  This is within range and should help the car work better on cornering.  The picture above shows the right front shock removed.  A jack is used to move the suspension through its travel.  The dial indicators measure the amount of bump.  This is a very precise adjustment, one that is often overlooked.  One that we will continue to monitor after every crash or even slight contact.  Off to Flamboro.  Looking for a better result.

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