Quote:
Originally Posted by Solamar
That would make the location and spring rate of the bump transition fairly important.
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Yes and no. If you are using a stock torsion bar, then yes, you want the engagement point right if you're using the Bump stop as an auxiliary progressive spring. I recently found out that my ~87 911 was setup to ride on the bump stops, and it's been that way for the 10+ years I've had the car. Typically I don't like cars that are on the stops. It makes tuning counterintuitive, because softening a main spring can actually reduce grip at that corner if it allows the suspension travel to crash onto the stops harder and shock the tires. Personally I like cars with a stiffer main spring that don't rely so heavily on the stops, but then you give up some ride quality because the initial motion is on a stiffer primary spring, vs stock soft springs. You'll probably just have to try it out and tune it subjectively. If the gap is too large you *may* experience too much body roll or the rear may feel over stuck. at that point you could try to lower the ride height or adjust the BSR gap. If you get the gap too short the rear could feel a little unpredictable or peaky.