The Apex Files

2022 BRZ/GR86 Chassis/Suspension Changes

March 30, 2022 3 min read

Spring Rates Part 2: Suspension Frequencies

August 05, 2020 2 min read

In part 1 of our series on springs, we learned how to use motion ratios to calculate the stiffness of our springs at the wheels. Figuring out the wheel rates of your existing suspension is helpful, but actually choosing spring rates for a new suspension can be complicated.

Spring Rates Part 1: The Motion Ratio

February 19, 2020 2 min read

Motion ratio Spring Rates

Vehicles with different suspension layouts can make it difficult to compare settings between cars. A spring rated at 8 kg/mm on a Honda S2000 will not act the same as it would on a Subaru BRZ. In fact, an 8 kg/mm spring on the front suspension of a Subaru BRZ will work differently than it would on the rear suspension.

Dampers, Part 2

February 19, 2020 2 min read

Previously on The Apex Files, we talked about the function of dampers as well as the definitions of shocks, struts, and coilovers. This time, we’re going to over the differences between monotube and twintube dampers. We’ll also discuss inverted dampers, piggyback canisters, and remote reservoirs.

Dampers, Part 1

February 19, 2020 2 min read

Dampers

Shocks, shock absorbers, struts, dampers, coilovers...what’s the difference? Suspension tuning can be difficult enough on its own, so getting our terminology right is a good first step before getting in too deep.