I picked these coilovers up and was told they’re for a First Gen tC. I’m kind of a Noob, can someone confirm or deny this?

I picked them up for cents on the dollar, is there a way I can Test to see how much life they have left?
I have more photos if needed.

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These look to be the TRD Struts and Springs combo, and I can say from how they look that these would fit a first-gen tC. The only way I know you could test them is to look for leaks and then test them on the car and see how they ride.

 

This. TRD Struts and some kind of springs, definitely not coilovers.

Just installed coils on a 1g this past weekend and these look like they would fit.

 

How’s these turn out? Anyone else have any experience with this struts and spring combo?

 

also proper way to test dampers is on shock-dyno

You'll get back chart with damping rates at various velocities and position.

 

that’s way above my pay grade bruh. i have no idea how that would be tested/baselined but thanks for the info.

 

heh, heh... if you've ever manually shoved a shock up & down to test it, you get idea. Here's strut that came out if my wife's car. No guessing about if they're good or not.


For exact suspension-tuning, you'll want to know exactly what your dampers are doing. So you stick them into shock-dyno that does same thing as compressing them by hand, but with precise measurements on damping amount at various velocities:
https://www.jegs.com/i/Intercomp/541/102092/10002/-1

Then computer prints out dyno-chart for shock:


Better dampers made for real performance rather than street show will have separate adjustments for rebound and damping (real 2-way adjustability). Such as Koni Motorsports inserts or Bilstein PSS struts. Damping rates below correspond to each click of rebound and compression *****. When changing spring-rates, such as going from street to track like Laguna Seca, you often have to adjust damping in opposite directions: more rebound and less compression.


Once you get into real racing coilovers like Ohlins or Penske, you get 6-way adjustments:

4. low-speed compression damping
3. low-speed rebound damping
6. high-speed compression damping
1. high-speed rebound damping
2. knee-point switchover between low/hi rebound
5. knee-point switchover between low/hi compression

 

Pretty cool find, are the white springs the same as the red trd springs?