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Old 11-17-2020, 09:31 PM   #1
fryfun
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PP sachs + RCE Yellow Springs

I've read some posts about the PP sachs + RCE Yellow springs combo rides really harsh due to the limited bump travel.

Doesn't the spring come with new bump stops? If so, it's still limited and bottoms out every time hitting a bump? Is it better to pair the springs with MY13-16 struts? I have both the 2020 PP/sachs and MY14 struts available.

Thanks in advance!
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Old 11-17-2020, 09:47 PM   #2
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I've had issues with bump travel with the front PP struts, but with lower springs (Swift measured at -1.25" lower) and with Raceseng camber plates which take away about another 3/4".

RCE yellows lower the car 0.8", if you use those and do not use camber plates that take away bump travel, that'd give you about 1.2" more travel than I had with my setup. I bet you'd be fine... Can use offset Pedder's mounts and camber bolts to get camber if desired.
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Old 11-17-2020, 09:59 PM   #3
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Thanks, I will use the factory tophats. I got some whitleline camber bolts (16mm ones I believe?) cuz I worry about putting the 14mm bolt to the upper hole for camber.

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I've had issues with bump travel with the front PP struts, but with lower springs (Swift measured at -1.25" lower) and with Raceseng camber plates which take away about another 3/4".

RCE yellows lower the car 0.8", if you use those and do not use camber plates that take away bump travel, that'd give you about 1.2" more travel than I had with my setup. I bet you'd be fine... Can use offset Pedder's mounts and camber bolts to get camber if desired.
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Old 11-17-2020, 10:28 PM   #4
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I'd be remiss if I didn't tell you that if you want a smooover ride, Bilstein B6 or B8 are great! They solved my bump travel issue which, again I think you'll be fine there. But I have to say that though one of the things i initially liked about the PP was the "go-kart" ride of the PP struts, it kinda got old. The Bilsteins seem to have a lot less compression damping so they ride a lot smoother, while still giving as much or more low-speed damping control for the stiffer springs.

Consider it an option! In my case they were necessary...
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Old 11-18-2020, 11:34 AM   #5
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Quote:
Originally Posted by fryfun View Post
I've read some posts about the PP sachs + RCE Yellow springs combo rides really harsh due to the limited bump travel.

Doesn't the spring come with new bump stops? If so, it's still limited and bottoms out every time hitting a bump? Is it better to pair the springs with MY13-16 struts? I have both the 2020 PP/sachs and MY14 struts available.

Thanks in advance!
It will be better with the 2020 PP shocks then MY14 shocks. The 2020 non PP shocks would ride the best out of the factory suspensions.

RCE springs + stock shocks of any type do ride more harshly over really bad pavement and big bumps. With the replacement bumpstops that we include and the more mild drop, it's still better than most other lowering springs. On most roads, the ride is pretty good with good condition shocks.

As mentioned, Bilstein B6 pair reeeeeally well with them and we have a nice package deal on our website. It's not necessarily solely the travel...basically all factory shocks have valving that is just kinda harsh.

- Andrew
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Old 11-18-2020, 12:03 PM   #6
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My plan is to upgrade to RCE T2 or KW V3(since I won their raffle a couple of days ago) when I'm bored with the springs and have enough money to do so.

I believe RCE T2 is better but gotta thank the KW for the prize lol.
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Old 11-19-2020, 09:18 AM   #7
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Originally Posted by ZDan View Post
I've had issues with bump travel with the front PP struts, but with lower springs (Swift measured at -1.25" lower) and with Raceseng camber plates which take away about another 3/4".

RCE yellows lower the car 0.8", if you use those and do not use camber plates that take away bump travel, that'd give you about 1.2" more travel than I had with my setup. I bet you'd be fine... Can use offset Pedder's mounts and camber bolts to get camber if desired.
Exact setup is. Going for. Just struts are oem 17's vs PP dampers

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Old 11-21-2020, 12:41 AM   #8
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They don't ride really harsh, they ride like typical lowering spring equipped car. underdamped and can't keep up with big dips in the road and whatnot.
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Old 11-21-2020, 08:51 AM   #9
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They don't ride really harsh, they ride like typical lowering spring equipped car. underdamped and can't keep up with big dips in the road and whatnot.
My impression on road and at the track was that the PPSachs dampers weren't too underdamped with Swift BRZ Sport lowering springs which are 34%F/43%R stiffer than stock. Highish high-speed compression damping and could use more low-speed rebound but not really an issue. I won my TT class in 2018 with this setup vs. a '13 BRZ on Ohlins R&T coilovers driven by an excellent ex-karting and formula car driver. Neither of us felt the stock dampers with the Swift lowering springs setup was too far "off" on my car. The primary shortcoming was lack of front bump travel due to 1.25" lower ride height combined with Raceseng camber plates which take away another .75". I was on the outside front bump stop a LOT in cornering.

I do think the PP/Sachs dampers have kinda harsh high-speed compression damping, which initially feels "go-karty" but it gets old... For sure the Bilsteins are a big improvement in this department, and also seem to have more low-speed rebound damping.

If $$$ are an issue I think the PP dampers with the RCE yellows (similar rates to the Swift BRZ Sport springs I ran but not as low ride height so more bump travel) with either factory top mount or offset Pedders and camber bolts for camber should work great. Decent road/track setup for minimal $$$. IMO...

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Old 11-21-2020, 09:14 AM   #10
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Originally Posted by ZDan View Post
My impression on road and at the track was that the PPSachs dampers weren't too underdamped with Swift BRZ Sport lowering springs which are 34%F/43%R stiffer than stock. Highish high-speed compression damping and could use more low-speed rebound but not really an issue. I won my TT class in 2018 with this setup vs. a '13 BRZ on Ohlins R&T coilovers driven by an excellent ex-karting and formula car driver. Neither of us felt the stock dampers with the Swift lowering springs setup was too far "off" on my car. The primary shortcoming was lack of front bump travel due to 1.25" lower ride height combined with Raceseng camber plates which take away another .75". I was on the outside front bump stop a LOT in cornering.

I do think the PP/Sachs dampers have kinda harsh high-speed compression damping, which initially feels "go-karty" but it gets old... For sure the Bilsteins are a big improvement in this department, and also seem to have more low-speed rebound damping.

If $$$ are an issue I think the PP dampers with the RCE yellows (similar rates to the Swift BRZ Sport springs I ran but not as low) with either factory top mount or Perrin's for camber should work great. Decent road/track setup for minimal $$$. IMO...
Don't forget about peddlers top hat for camber

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Old 11-21-2020, 09:30 AM   #11
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Don't forget about peddlers top hat for camber

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Ooops, I meant Pedders where I said Perrin's... Fixed!
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