Springs dangerous for car? - Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community

eric2523 · 07-04-2015, 05:32 AM

Bought the car used for around 30,000 miles with stock everything and with about 33k miles on it now im thinking about buying/installing springs however worried that it will be damaging the car's struts.

TheVoiceOfReason · 07-04-2015, 12:23 PM

As long as you stick with springs made to work well with the stock struts you will be fine on this car. These are ones with drops less than an inch, and rates that are not too agressive. RCE yellows, Swift Sports, Eibach Pro-kit, RS*R down, TRD springs, and others.

D_Thissen · 07-04-2015, 12:32 PM

IIRC RCE yellows were designed to work with the OEM struts. I have had them on my car for about 5000km and they haven't made so much as a squeak.

churchx · 07-04-2015, 01:12 PM

Maybe RCE yellows are made for stock .. but most often i hear them mentioned together with Koni shocks.

cdrazic93 · 07-04-2015, 01:22 PM

Lowering springs dont damage struts. If anything an improperly designed spring (outside the dampers critical damping zone) undersprung or oversprung will wear the damper down faster than the stock springs. No one has reported damage from just springs.

Shankenstein · 07-04-2015, 01:39 PM

Quote:

Originally Posted by cdrazic93

Lowering springs dont damage struts. If anything an improperly designed spring (outside the dampers critical damping zone) undersprung or oversprung will wear the damper down faster than the stock springs. No one has reported damage from just springs.

Some people have reported damage on Eibach Sportline and other springs that drop >1.0", but it's fairly rare... and may be attributed to people who install the strut's top nut with an impact wrench (which can wear the seals).

If you do springs, keep the drop modest (less than or equal to 1"). Check the spring rate, to make sure is appropriate for your drop level. As others have mentioned, RaceComp Engineering's Yellow springs have alot of happy customers for good reason. See the above criteria.

wparsons · 07-04-2015, 08:13 PM

Keep in mind that most shock manufacturers suggest replacement around 50k miles, so even if the springs alone aren't damaging to the shocks, they might not last a ton longer.

I've personally got swift sport (frs rate) springs on stock shocks with 103k km's on them, with about 40k km's of those with the swift springs and they're still working great.

07-04-2015, 12:32 PM	#3
D_Thissen Senior Member Join Date: Jan 2014 Drives: '13 Argento FR-S (Sold) Location: Ontario Posts: 2,126 Thanks: 3,209 Thanked 1,439 Times in 855 Posts Mentioned: 19 Post(s) Tagged: 2 Thread(s)	IIRC RCE yellows were designed to work with the OEM struts. I have had them on my car for about 5000km and they haven't made so much as a squeak. __________________ My FR-S Build IG: dthissen

07-04-2015, 01:22 PM	#5
cdrazic93 Junior Join Date: Aug 2013 Drives: a car Location: Probably at school Posts: 4,341 Thanks: 3,184 Thanked 2,512 Times in 1,502 Posts Mentioned: 20 Post(s) Tagged: 0 Thread(s)	Lowering springs dont damage struts. If anything an improperly designed spring (outside the dampers critical damping zone) undersprung or oversprung will wear the damper down faster than the stock springs. No one has reported damage from just springs. __________________ "Ah! What music! They could have never imagined, those pioneers who invented the automobile, that it would posses us like this, our imaginations, our dreams. Men love women, but even more than that, men love CARS!"-Lord Hesketh

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07-04-2015, 12:23 PM	#2
TheVoiceOfReason Senior Member Join Date: Nov 2014 Drives: BRZ Limited Location: Maryland Posts: 206 Thanks: 289 Thanked 236 Times in 99 Posts Mentioned: 2 Post(s) Tagged: 2 Thread(s)	As long as you stick with springs made to work well with the stock struts you will be fine on this car. These are ones with drops less than an inch, and rates that are not too agressive. RCE yellows, Swift Sports, Eibach Pro-kit, RS*R down, TRD springs, and others.

07-04-2015, 01:12 PM	#4
churchx Senior Member Join Date: Mar 2015 Drives: 2014 GT86 Location: Latvia, Riga Posts: 4,334 Thanks: 698 Thanked 2,086 Times in 1,436 Posts Mentioned: 53 Post(s) Tagged: 1 Thread(s)	Maybe RCE yellows are made for stock .. but most often i hear them mentioned together with Koni shocks.

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