JDM STI Springs with normal 2017 damper.
 

Hi guys,

I'm looking for review or opinion about STI Springs pair with normal 2017 damper for my 2015 brz.

I found some information in this forum say that JDM STI spring rate is about 3.6K front / 4.3K rear. I just love the way 2017 handling but I just want more performance and I hate understeer.

I know RCE yellow has positive opinions but for shipping cost to where I live will cost me 1 more set of it.

Thanks

Unfortunately, STI never released spring rates for their Pink Springs so no one truly knows. Im sure they are good springs and will be fine with your 2017 dampers. No one has had any issues with JDM Pink Springs seems like most people have liked them.

1. Find someone with 2017 take-offs and put them on your 2017
2. Realize that an alignment change is going to wake that car up more than stockish springs / dampers
3. If you have a 2015, there already is a SCC suspension package at Tirerack for the Gen1s < 2017. That would wake up your car without breaking the bank AND you would have people and a class to go play in and learn:

* https://www.tirerack.com/content/tir...s/SCCASSC.html
* https://www.tirerack.com/tires/tiret...jsp?techid=338
* https://www.tirerack.com/suspension/...5&autoModClar=

I had the STi pink springs on the PP dampers, not the best pairing.
The best pairing is with facelift Showa, even better than old generation ones.
Go for them.

Can you get Eibach or TRD Springs? In the USA TRD is made by Eibach and there pro springs are decent as well. Swfit springs are good too. the 2017 normal dampers are the softest of all the dampers. Pair it with a mild drop and get yourself some camber bolts and a real alignment will really transform the car's handling. Honestly if you buying the 17 dampers just get yourself some Bilstein B8's and your spring of choice.

Both Eibach and TRD are available but I worried 1" drop will cuase bumpstop if I use 200TW tire.

The reason I go for 2017 dampers becuase I got a good deal about 165$ with 300 miles on it. May be Bilstein B6 after these shocks worn.

Maybe talk to the rce guys see if they can get you some custom springs? Shipping springs should not be to bad and seeing how you got a good deal on the 17 dampers might be worth it to get the right springs

Sent from my GM1915 using Tapatalk

RCE yellows would be better suited to 200TW tires compared to the eibach pro. Yellows have 4.5k front/rear rates compared to 3.6f/4.9R on eibachs. Stiffer front rate with a 0.8" drop should help with bump stop issue.

RCE carried the tarmac springs with 5K F/R for a while but looks like they're unavailable for an unknown length of time. If a used set ever popped up that sounds most ideal for 200tw.

A set of near new 2017 dampers will serve you well, especially for $170 bucks!

I transitioned from yellows on stock 2017 dampers to B6 on yellows. B6 are definitely an upgrade worth looking into when stock dampers are worn.

How did you view this transition in terms of damping when driving along the same stretch of roads and in spirited drive along the twisties ( if you ever tried it).

You look like the ideal person to give a nice before and after regarding the addition of the B6.

And also did the comfort level change or just got better?

Many thanks for your inputs.

I wrote some of my intial impressions here.
https://www.ft86club.com/forums/show...5&postcount=53

Worth noting I haven't been able to test 0 mile stock dampers vs 0 mile B6. My dampers had 55000km when I added the springs. I logged 20k on that setup over about 11 months with 1 hour on track at calabogie, and a winter. Stock dampers degraded noticeably within that 20k. By the end ride quality had gone down, and handling was less precise. Manhole covers felt jaring to run over.

I've put 9000km on this setup since install. I run with -2° front camber via camber/crash bolt combo.
takeaway to me is that the B6 valving feels better suited to stiffer springs like yellows. Bumps feel more controled, though it is still rides firm. There is no jarring feel, which I didn't feel with reasonable condition stock dampers either.

In the twisties, roundabouts, onramps the car feels predictable, stable, precise, and playful. Love this setup overall. I have been shotgun and drove a couple of coilover cars and they ride too racecar for me. This strikes a nice balance.
I run with 225/45r17 Toyo advan V105s that are near new but a few year stock. They feel responsive but overall grip levels are below pilot super sports.

Thanks for the reply.

Looks like this is what I am looking for.

Hopefully sometime soon.

PS: What mud flaps are fitted to your car?

I am running 225/45/17 on 9" wheels and the slight poke is throwing too much dirt on the fender sides and door. And spoiling the paint.
Need to find a decent set of mud flaps.

They are rokblokz - short. I have them adjusted as far in as they will go. If you like the look and want extra protection you can have them stick out quite a bit.

you mean the regular 2017 dampers?

I had the STI spring on my 2015 stock damper before & it was really good.... with softer Michelin PSS tires i remember it felt so comfy. lol

Now i have PP + sTI pink for like 3 years already, i think it's great but it's very hard....

Yes, regular 2017 Showa dampers. The PP Sachs are very bad with lowered springs.