questions about anti-squat in 4 link design

Rear Suspension Overview Part 2 – Pinion Angle
Rear Suspension Overview Part 2 – Pinion Angle

workingdog

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Sorry to get very geeky, but I’m studying 4 link design and I’m confused. There’s this great picture in a great article at Crawlpedia that shows the 100% anti-squat line as a line from the rear tire contact patch through the point where the center of gravity intersects a vertical line through the front axle. Makes sense to me.anti_squat_above.jpg

But, the amazing 4 link calculator gives the following image that shows the light blue lines as the 100% anti-squat (and 100% anti-dive). Note the front and rear of the car are reversed from the above image. and the blue lines seem to be very different. My center of gravity is like 31″.4 link geometry side view.jpg

Can anyone explain the anti-squat in the calculator? It seems oddly very steep – I’m never getting to 100% chasing that.

But, the amazing 4 link calculator gives the following image that shows the light blue lines as the 100% anti-squat (and 100% anti-dive). Note the front and rear of the car are reversed from the above image. and the blue lines seem to be very different. My center of gravity is like 31″.

Can anyone explain the anti-squat in the calculator? It seems oddly very steep – I’m never getting to 100% chasing that.

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