I would think the negative volume remains about the same. The piston head is advanced about 1 cm upward into the air chamber, but top-out bumper side of the seal head is also shifted 1 cm upward (by having the seal head being about 1 cm thicker, with the seal moved upward).
Wouldn't the volume be the same but shifted upward?
(Not arguing - genuinely asking)
Edit: you're right - if you look at the two air springs side by side, the new one clearly does have less negative spring volume.
April 9, 2020, 1:02 p.m. - DMVancouver
I would think the negative volume remains about the same. The piston head is advanced about 1 cm upward into the air chamber, but top-out bumper side of the seal head is also shifted 1 cm upward (by having the seal head being about 1 cm thicker, with the seal moved upward). Wouldn't the volume be the same but shifted upward? (Not arguing - genuinely asking) Edit: you're right - if you look at the two air springs side by side, the new one clearly does have less negative spring volume.