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Old 02-05-2019, 01:00 AM   #1
GunMetalGrey

 
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Drives: Track prepped 2018 Camaro ZL1 (a10)
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Lowering Springs and Ride Height of ZL1 vs SS 1LE

Does anyone know if the ride height of a 2018 ZL1 (correct front springs unlike 2017) is any different than a 2018 SS 1LE?

I know they have the same FE4 suspension except for the springs which have different rates, but I'm wondering if the different springs also create different ride heights for the two cars.

Reason is all the lowering springs seem to be advertise how much they will lower either the SS or SS 1LE, but not how much they will lower the ZL1.

I'll be contacting Hyper Co regarding the YYZ springs and Down Sus RSR regarding their springs to see if I can find more specific answers.
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Old 02-05-2019, 12:31 PM   #2
WhyUMad1LE

 
Drives: 17 SS 1LE
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According to Eibach OEM specs are

Quote:
RS
Front
OE rate: 22 N/mm (124 lbs/in)
OE Hub Center to Fender: 388 mm (15.3 in)

Rear
OE rate: 82 N/mm (467 lbs/in)
OE Hub Center to Fender: 393 mm (15.5 in)


SS
Front
OE rate: 24 N/mm (137 lbs/in)
OE wheel center to fender: 397 mm (15.6 in)

Rear
OE rate: 101 N/mm (577 lbs/in)
OE wheel center to fender: 396 mm (15.9 in)


SS 1LE
Front
OE rate: 31 N/mm (177 lbs/in)
OE wheel center to fender: 392 mm (15.4 in)

Rear
OE rate: 87 N/mm (497 lbs/in)
OE wheel center to fender: 379 mm (14.9 in)

ZL1
Front
OE rate: 30 N/mm (171 lbs/in)
OE wheel center to fender: 381 mm (15.0 in)

Rear
OE rate: 93 N/mm (531 lbs/in)
OE wheel center to fender: 387 mm (15.2 in)
https://eibach.com/newsimg/chevy-cam...it-2016-17.pdf
https://eibach.com/us/c-141-product-...o-spacers.html
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Old 02-05-2019, 05:25 PM   #3
GunMetalGrey

 
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Quote:
Originally Posted by WhyUMad1LE View Post
Thank you very much!
That was exptremely helpful!

According to this, if YYZ Springs lower a 1LE by 1” then they will lower a ZL1 by about 1/2” in the front and perhaps A full inch in the rear

Now I’m waiting for an answer from RSR regarding their springs
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Last edited by GunMetalGrey; 02-05-2019 at 05:50 PM.
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Old 02-05-2019, 09:13 PM   #4
Stephen12ZL1


 
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Quote:
Originally Posted by GunMetalGrey View Post
Thank you very much!
That was exptremely helpful!

According to this, if YYZ Springs lower a 1LE by 1” then they will lower a ZL1 by about 1/2” in the front and perhaps A full inch in the rear

Now I’m waiting for an answer from RSR regarding their springs
my suggestion is to find pics of cars with lowering springs installed and see which ones you like. The only way to somewhat standardize your assessment is to find cars with stock wheels and nearly stock alignment. Cars with more track suited alignments will appear slightly lower.
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'21 ZLE A10 Wild Cherry PDR 2:00.78 VIR Full 10.68@131.69 1.68 60'
'17 ZL1 A10 Mosaic Black PDR/Nav 2:03.08 VIR Full 11.003@129.2 1.75 (sold)
'15 Z/28 #325 Black a/c & stereo. 2:10.1 VIR Full (sold)
'12 ZL1 A6 Black 10.52@131 1.55 60' 2:13 VIR Full (sold)
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Old 02-05-2019, 09:17 PM   #5
Stephen12ZL1


 
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Drives: '21 ZLE A10
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my car stock pre delivery with 6 miles
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'21 ZLE A10 Wild Cherry PDR 2:00.78 VIR Full 10.68@131.69 1.68 60'
'17 ZL1 A10 Mosaic Black PDR/Nav 2:03.08 VIR Full 11.003@129.2 1.75 (sold)
'15 Z/28 #325 Black a/c & stereo. 2:10.1 VIR Full (sold)
'12 ZL1 A6 Black 10.52@131 1.55 60' 2:13 VIR Full (sold)
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Old 02-05-2019, 09:21 PM   #6
Stephen12ZL1


 
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Drives: '21 ZLE A10
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lowered best pic I can find with stock wheels
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'21 ZLE A10 Wild Cherry PDR 2:00.78 VIR Full 10.68@131.69 1.68 60'
'17 ZL1 A10 Mosaic Black PDR/Nav 2:03.08 VIR Full 11.003@129.2 1.75 (sold)
'15 Z/28 #325 Black a/c & stereo. 2:10.1 VIR Full (sold)
'12 ZL1 A6 Black 10.52@131 1.55 60' 2:13 VIR Full (sold)
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Old 02-05-2019, 09:26 PM   #7
Stephen12ZL1


 
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Drives: '21 ZLE A10
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lowering springs, track alignment and 295/30-20 square
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'21 ZLE A10 Wild Cherry PDR 2:00.78 VIR Full 10.68@131.69 1.68 60'
'17 ZL1 A10 Mosaic Black PDR/Nav 2:03.08 VIR Full 11.003@129.2 1.75 (sold)
'15 Z/28 #325 Black a/c & stereo. 2:10.1 VIR Full (sold)
'12 ZL1 A6 Black 10.52@131 1.55 60' 2:13 VIR Full (sold)
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Old 02-05-2019, 11:33 PM   #8
GunMetalGrey

 
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Drives: Track prepped 2018 Camaro ZL1 (a10)
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Quote:
Originally Posted by Stephen12ZL1 View Post
my suggestion is to find pics of cars with lowering springs installed and see which ones you like. The only way to somewhat standardize your assessment is to find cars with stock wheels and nearly stock alignment. Cars with more track suited alignments will appear slightly lower.
Good call, do you have any pics straight from the side that clearly show wheel gap and/or measurements?
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2018 ZL1; Mag 2650 and 2 inch LT Headers , every SPL suspension upgrade, MCS 2 way coilovers, sway bars, square SC3R 325's all the way around, and multiple brake cooling upgrades

Last edited by GunMetalGrey; 02-06-2019 at 02:37 AM.
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Old 02-06-2019, 09:11 PM   #9
GunMetalGrey

 
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Drives: Track prepped 2018 Camaro ZL1 (a10)
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UPDATE

RSR springs are for non mag ride Camaro's only

Eibach clearly show on there website that their lowering spring lower a ZL1 by .4" front and rear while it lowers an SS1LE by .7" front and rear
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2018 ZL1; Mag 2650 and 2 inch LT Headers , every SPL suspension upgrade, MCS 2 way coilovers, sway bars, square SC3R 325's all the way around, and multiple brake cooling upgrades

Last edited by GunMetalGrey; 02-07-2019 at 01:12 AM.
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