Tag Archives: Ackermann Angle

Custom Ford Sierra Upright – steering arm

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Getting the dimensions correct for this custom Ford Sierra Upright hasn’t been easy. The reason for making a new upright was the steering arm on the standard upright being wrong for my particular application. Therefore getting the next stage right is very important.

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Custom Ford Sierra Upright Part 2

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I’ve been boxing in one of my custom Ford Sierra Front Uprights. They are made from solid EN3B steel along with 3,8,12mm steel plate.

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Custom Sierra 4×4 Uprights Part 2

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This is not a DIY Sierra brake upgrade, more of a complete re-think. A set of W220 Mercedes callipers came up for less than £25 (inc. delivery).

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Custom Sierra 4×4 Uprights

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Ackermann angle geometry is a tricky subject and often over simplified.

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Ackermann Angle and Sierra Uprights

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If you swapped uprights from one side of the car to the other the Ackermann Angle would be very wrong.

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Toe In / Toe Out

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The amount of toe is expressed in degrees, as the angle from parallel of the front wheels. Sometimes Toe is expressed as the difference between the track widths of the leading and trailing edges of the front wheels. Toe adjustment…

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Slip Angle

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Even though the name uses the word “slip”, this characteristic has nothing to do with slipping or skidding. Slip angle is the angular difference between the direction of the tyres’ contact patch with the road and the direction of the…

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Ackermann Angle

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Ackermann angle steering geometry solves the problem of wheels on the inside and outside of a turn needing to scribe circles of different radii. Ackermann is often mis-spelt Ackerman. Rudolf Ackermann (1764 – 1834) was the patent agent for German…

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Glossary

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There are loads of terms that are used to describe suspension and car technology: Ackermann Camber Caster Roll Centre Scrub Scrub Radius Slip Steering Axis Inclination (SAI) / Kingpin Inclination (KPI) Toe in / Toe Out So why are they…

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Reasons not to build a 4×4 Kit Car

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There are many reasons why 2wd is still better than 4wd, but what are they?

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