Coilover springs
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1st Gear
Joined: Jun 2017
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Coilover springs
I apologize if this isn't in the right place. But I have a 04 Acura TSX with Tein Street Advance coilovers, the rear doesn't go as low as I'd like; so I'd like to buy shorter springs and just replace the rear pair. How do I know what springs i can replace the ones I have with? Are most springs universal or is there something I need to know before buying shorter springs?
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Joined: Nov 2006
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If you're already at the lowest possible setting, try removing 1 of the locking collar rings to get it to go slightly lower. It'll probably give you another 1/4" or so.
If you want to go more than that, you'd be better off using another full bodied coilover with a threaded lower body.
The problem with using a shorter spring than it is designed for means you'll increase chances of bottom out which in turn can shorten the dampers life.
Short Spring Dilemmas Part 1 - TEIN USA Blog
If you want to go more than that, you'd be better off using another full bodied coilover with a threaded lower body.
The problem with using a shorter spring than it is designed for means you'll increase chances of bottom out which in turn can shorten the dampers life.
Short Spring Dilemmas Part 1 - TEIN USA Blog
Short Spring Dilemmas Part 1
I will be going over the details of some issues encountered with the use of shorter springs. Part 1 of a 2 part post would explain the use of shorter length springs with a ride height adjustable coilover. Many consumers think that the use of a shorter length spring on a ride height adjustable coilover such as the Street Basis, Street Advance, Super Street, Basic’s, and Comfort Sport dampers would allow for the coilover to drop even further than the kits current maximum lowest setting. Essentially this is correct if the damper assembly has sufficient amount of range left on its body threads and/or overall damper length.
Any consumer kits which have this type of set up will initially encounter the issue of the upper mount assembly riding against the bump rubber. This will eventually cause the bump rubber to break down causing either the damper to prematurely wear the seal and, in worst cases, cause internal damage of the damper. Other issues also experienced are spring slop (the spring moving out of its seat positions during operation due to the shortened length) damaging the damper body and threads, noises due to excessive damper component movement, and damper component failure (upper, lower spring seats, bushings, and bearings) from the loose fitting spring.
I will be going over the details of some issues encountered with the use of shorter springs. Part 1 of a 2 part post would explain the use of shorter length springs with a ride height adjustable coilover. Many consumers think that the use of a shorter length spring on a ride height adjustable coilover such as the Street Basis, Street Advance, Super Street, Basic’s, and Comfort Sport dampers would allow for the coilover to drop even further than the kits current maximum lowest setting. Essentially this is correct if the damper assembly has sufficient amount of range left on its body threads and/or overall damper length.
Any consumer kits which have this type of set up will initially encounter the issue of the upper mount assembly riding against the bump rubber. This will eventually cause the bump rubber to break down causing either the damper to prematurely wear the seal and, in worst cases, cause internal damage of the damper. Other issues also experienced are spring slop (the spring moving out of its seat positions during operation due to the shortened length) damaging the damper body and threads, noises due to excessive damper component movement, and damper component failure (upper, lower spring seats, bushings, and bearings) from the loose fitting spring.
Safety Car
Joined: Feb 2015
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SA's start to ride like shit when you try to dump the car on them. They're not meant for going super low.
If you lower the threads all the way, you'll be hitting the bumpstops excessively. You'll have to set the damper to full stiff to counteract all the bouncing around. And they won't last.
As mentioned from the poster above, if you want to lower the car agressively, buy a full body coilover like the Flex Z. You'll need to spend time on setup to make them ride well...and the setup is fairly complex. But they'll allow you to get real low.
If you're going the YOLO route, then buy shorter universal flat bottom springs with the same inner diameter as the Tein ones. The stock Tein SA rear springs are 230LB/IN, IIRC. All the spring info is found on the spring, in the manual, and on tein's website.
Buy replacement ones from Eibach, Hyperco, Swift, Tein, KW, H&R, Summit.... or whomever sells your size.
If you lower the threads all the way, you'll be hitting the bumpstops excessively. You'll have to set the damper to full stiff to counteract all the bouncing around. And they won't last.
As mentioned from the poster above, if you want to lower the car agressively, buy a full body coilover like the Flex Z. You'll need to spend time on setup to make them ride well...and the setup is fairly complex. But they'll allow you to get real low.
If you're going the YOLO route, then buy shorter universal flat bottom springs with the same inner diameter as the Tein ones. The stock Tein SA rear springs are 230LB/IN, IIRC. All the spring info is found on the spring, in the manual, and on tein's website.
Buy replacement ones from Eibach, Hyperco, Swift, Tein, KW, H&R, Summit.... or whomever sells your size.
Last edited by BROlando; Jun 5, 2017 at 09:19 AM.