How 'Flat Ride' or 'Fast Settling' suspension tuning works for Porsche 911 (Carrera, Turbo, GT3)

#FlatRideMeansFastSettling #PorscheUsesFlatRide

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'Any sufficiently advanced technology is indistinguishable from magic.' - Arthur C. Clarke

It may seem to some that Flat Ride is voodoo witchcraft but it's a suspension tuning technique that MANY reputable sports car manufacturers utilize in their factory suspensions! This includes BMW M3, Porsche 911 GT3, the Chevrolet Corvette, and many other vehicle manufacturers. In this video, I show a spreadsheet that I edited to include ride frequencies based on the spring rates a Rennlist Porsche enthusiast had shared:

https://rennlist.com/forums/997-forum/932618-997-spring-rate-roundup.html

After I calculated the associated rie frequencies for the front and rear suspension, I was amazed and pleased to see that EVERY SINGLE factory Porsche suspension came with Flat Ride! This means that the rear ride frequency or natural oscillation frequency is higher than the front, which lets the rear suspension 'catch up' to the front suspension. The use of spring rates that create Flat Ride promotes a 'Fast Settling' of the suspension, whether you're going in a straight line or doing slaloms.

The application of Flat Ride was across the board, including the very well-respected and VERY fast Porsche GT3 race car! I've seen this behavior on BMWs, Mazdas, Subarus, Mitsubishis, and many other makes and models.

I'm on a mission to educate for enthusiasts and every-day driver to what I call the '3 Secrets to Creating Ride Harmony.' Choosing spring rates for your suspension that create Flat Ride or 'Fast Settling' behavior is the #1 most important choice you can make when designing or improving your suspension!

A rare exception would be a vehicle that achieves a MAJORITY of its grip from aerodynamics (like a Formula 1 car) which does NOT apply to real-worl..