This Civic Si is also lighter and stiffer than its predecessor, though Honda doesn't specify exactly by how much. Adaptive dampers with Normal and Sport settings are standard, as is a helical front limited-slip differential. The Si also shares its front upper control arms with the ultra-hardcore Civic Type R.
The seats in both vehicles were cloth. RESULTS Within 20 minutes, readings in both cars exceeded 125 F and reached a maximum stabilized temperature in 40 minutes (Figure). The temperature rise in the first 10-minute interval was more severe for the dark-colored enclosed sedan than for the light-colored minivan. The maximum stabilized temperature was also higher for the dark enclosed sedan (140 F compared to 138 F), which was a temperature rise of over 45 F in less than 1 hour.
It can take much longer on in hot weather or if the vehicle is parked in the sun. Measure at least 3 inches into the center dash vent. Temperature should be 40 to 42 deg F. Higher fan speeds, resulting in high air volume, will result in higher vent temps. Rear cabin systems are normally 10 degrees warmer because they have a larger volume of space to cool.