Steeda vs H&R vs Eibach decision

[Leadfoot]

Installed the Eibachs a couple months ago. A little softer than the stock springs but feels more planted. I don't miss the LARGE gap but wish it had a bit more rake. With it lowered, it's easer to get in and out of now. 31 13/16 inches front AND rear from the ground through the center of the tire, to the top of the wheel arch.

 

[UNBROKEN]

Installed the Eibachs a couple months ago. A little softer than the stock springs but feels more planted. I don't miss the LARGE gap but wish it had a bit more rake. With it lowered, it's easer to get in and out of now. 31 13/16 inches front AND rear from the ground through the center of the tire, to the top of the wheel arch.

View attachment 29546

For accurate comparisons you measure from the axle centerline to the fender arch.

 

[Leadfoot]

For accurate comparisons you measure from the axle centerline to the fender arch.

I don't know about more accurate.. you've got 2.25 inch offset from the hub to the fender arch, is the straight edge level from the hub to the tape measure? if not then the reading is off. Is the straightedge in the center of the hub, or is it +/- 1/16 inch? Have a couple people measure your wheel arch height your way and mine and see which is more consistent.

 

[UNBROKEN]

I don't know about more accurate.. you've got 2.25 inch offset from the hub to the fender arch, is the straight edge level from the hub to the tape measure? if not then the reading is off. Is the straightedge in the center of the hub, or is it +/- 1/16 inch? Have a couple people measure your wheel arch height your way and mine and see which is more consistent.

Yes, it’s the more accurate and proper way. For your way to work each car would need to at minimum have the same exact size tire with the same tire pressure and the same tread depth.
Axle centerline to fender arch would be the same no matter what. It’s the industry standard if you will for measuring differences in ride height.

 

[Leadfoot]

The same would be true for your measurement. you're measuring the radius of the tire and I'm measuring the diameter. In exaggeration, the ride height would be different for a 12 inch vs. a 37 inch diameter tire. I was just giving a reference height for stock wheels in case someone wanted to check their heights.

 

[UNBROKEN]

The same would be true for your measurement. you're measuring the radius of the tire and I'm measuring the diameter. In exaggeration, the ride height would be different for a 12 inch vs. a 37 inch diameter tire. I was just giving a reference height for stock wheels in case someone wanted to check their heights.

No, it would not be true. Axle centerline to fender arch would be identical no matter how big or small of a tire you installed. Maybe you’re not understanding the process. I’m not measuring any part of the tire and ride height isn’t even a part of the question, I’m measuring the suspension itself. Again, that’s the industry standard for measuring differences in height.

 

[Leadfoot]

Whatever.. I don't really care. Bottom line is the delta would be the same for before and after heights if I used your, or my method for measuring. I was interested in how much drop the springs would produce, and after alignment and settling I got 2.0 inches for the rear and 1 11/16 (1.69) inches for the front.

 

[UNBROKEN]

Not sure what’s so hard to understand but no, the delta would not necessarily be the same. If tires, tread and air pressure were identical between two cars, yes.
If any of those variables is different? No, it would change things.
Let’s say two cars have identical suspensions…but different tire sizes.
One has say a 31” tall tire…ground to fender is say 33”
The other has a 30” tall tire…ground to fender would be 32.5”
But…axle centerline to fender would be the same on both cars. That’s the accurate measurement to compare between different springs on different cars.

 

[Leadfoot]

The delta would be the same. if the springs dropped the car 1 inch then the 33 inch height would be 32 and the 32.5 inch car would be 31.5. I'm not measuring different cars, I'm measuring mine. I understand your point, I just don't care.

 

[UNBROKEN]

The delta would be the same. if the springs dropped the car 1 inch then the 33 inch height would be 32 and the 32.5 inch car would be 31.5. I'm not measuring different cars, I'm measuring mine. I understand your point, I just don't care.

This thread is about the difference between different springs on different cars. Your measurement only applying to your car helps nobody. If you measured it like I said then others could compare their cars to yours…which is, again, the point of the thread.
Example…my car measures 17” front and rear. I can’t compare my car to yours your way because I have shorter tires than you do.