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NoHyperbole · 04-28-2015, 02:23 PM

The specs for these Spec-R springs call for a 1.2" drop (F) and a 1.0" drop (R). Has anyone actually measured this? The reason I ask is that I have measured a drop of .75" (F) on my car, which is .45" less than Swift's specs. (The rear drop was almost exactly 1.0", so that's right on.) I called Swift, and they asked me to measure from the bottom of the wheel lip through the center of the hub up to the fender. This measurement takes tire pressure out of the equation. According to my measurements, Swift says the drop is right where it should be. The springs were installed correctly, the wheel gap looks reasonable, there are no noises, and the performance is excellent.

Here are the measurements on level ground from the GROUND to the fender with 2013-14 OEM 19" RAYS and Bridgestone RE050 tires at 35 psi cold:

BEFORE SPRING INSTALL
OEM SPECS: 27.88" (F) and 27.99" (R)
ACTUAL: 27.875" (F) and 28" (R) +/- .06" L to R

AFTER SPRING INSTALL (3 weeks and 400 miles)
SWIFT SPECS: 26.68" (F) and 26.99" (R)
ACTUAL: 27.125" (F) and 27.06" (R) +/- .06" L to R

So the front measurement should have been less than 27". Also, the ride height is now slightly higher in the front than it is in the rear, which is interesting considering the OEM ride height is slightly lower (~.125") in the front. It is even more interesting because the Swift specs call for a greater drop in the front (1.2" vs. 1.0"), which would make the front ride height that much lower than the rear ride height.

Here are my measurements from the BOTTOM OF THE WHEEL LIP:

AFTER SPRING INSTALL: 24.44" (F) and 24.19" (R) +/- .06" L to R

As I said, I have no complaints about these springs whatsoever. I'm just wondering if the actual front drop is indeed .75".

I am curious to see what others' measurements are.

04-28-2015, 02:23 PM	#1 (permalink)
NoHyperbole Base Member Join Date: Jan 2014 Location: Los Angeles Posts: 216 Drives: N/A Rep Power: 11	Actual Drop of Swift Springs The specs for these Spec-R springs call for a 1.2" drop (F) and a 1.0" drop (R). Has anyone actually measured this? The reason I ask is that I have measured a drop of .75" (F) on my car, which is .45" less than Swift's specs. (The rear drop was almost exactly 1.0", so that's right on.) I called Swift, and they asked me to measure from the bottom of the wheel lip through the center of the hub up to the fender. This measurement takes tire pressure out of the equation. According to my measurements, Swift says the drop is right where it should be. The springs were installed correctly, the wheel gap looks reasonable, there are no noises, and the performance is excellent. Here are the measurements on level ground from the GROUND to the fender with 2013-14 OEM 19" RAYS and Bridgestone RE050 tires at 35 psi cold: BEFORE SPRING INSTALL OEM SPECS: 27.88" (F) and 27.99" (R) ACTUAL: 27.875" (F) and 28" (R) +/- .06" L to R AFTER SPRING INSTALL (3 weeks and 400 miles) SWIFT SPECS: 26.68" (F) and 26.99" (R) ACTUAL: 27.125" (F) and 27.06" (R) +/- .06" L to R So the front measurement should have been less than 27". Also, the ride height is now slightly higher in the front than it is in the rear, which is interesting considering the OEM ride height is slightly lower (~.125") in the front. It is even more interesting because the Swift specs call for a greater drop in the front (1.2" vs. 1.0"), which would make the front ride height that much lower than the rear ride height. Here are my measurements from the BOTTOM OF THE WHEEL LIP: AFTER SPRING INSTALL: 24.44" (F) and 24.19" (R) +/- .06" L to R As I said, I have no complaints about these springs whatsoever. I'm just wondering if the actual front drop is indeed .75". I am curious to see what others' measurements are.