BRZ lowered on RaceComp Engineering springs! - Page 6 - Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community

Calum · 03-27-2012, 12:51 PM

Quote:

Originally Posted by Racecomp Engineering

Sorry for the lack of details! We'll spill the beans soon.

- Andrew

What's the hold up, are the non-disclosure agreements not expired yet?

Racecomp Engineering · 03-27-2012, 02:08 PM

Nothing like that, just a lot of things going on at once!

- andrew

Draco-REX · 03-27-2012, 03:14 PM

Hmm.. The slippery slope..

Springs..

Then plates for camber.

Then sways to compensate for the longer roll moments..

and the car becomes more knife-edged...... Hmm...

zoomzoomers · 03-27-2012, 03:42 PM

The car looks awesome! Even better since I ordered the SWP! Thanks for the post. Can't wait for more info. And here I was planning to keep everything stock.

kayen · 03-27-2012, 04:06 PM

RCE is definitely making it difficult keeping the BRZ stock lol. I have to try though, I want to run Stock Class AutoX, until either KW or AST Coils come out to jump to a Street Touring Classification.

KevinDuMa · 03-27-2012, 04:22 PM

Looking sweet...and it's in SWP it's meant to be!

BRZ · 03-27-2012, 04:37 PM

i love the drop, but i'm really wondering how smooth it drives with it....

skeeler · 03-27-2012, 05:08 PM

Quote:

Originally Posted by 7thgear

How it affects camber/toe/caster will be dependent on the car's particular geometry.

In the case of MacPherson struts, deviation from OEM typically creates positive camber, requiring camber plates, ball-joint extenders, lower control arm extenders, crash bolts, or a combination of those things.

Double-wishbone setups typically are not as sensitive to lowering from an alignment point of view, but there are other funky things that happen...

The camber loss under compression is probably my major concern with this car. My other cars are wishbone/wishbone or wishbone/multi-link, so they experience camber gain. Some say the struts shouldn't be a problem, even in an autocrossed or tracked car, but I'm still worried.

Draco-REX · 03-27-2012, 05:24 PM

Quote:

Originally Posted by skeeler

The camber loss under compression is probably my major concern with this car. My other cars are wishbone/wishbone or wishbone/multi-link, so they experience camber gain. Some say the struts shouldn't be a problem, even in an autocrossed or tracked car, but I'm still worried.

Many people do quite well in MacPherson strut cars. Subaru likes to use long control arms, so camber loss is minimized. If you consider the range of motion you're likely to encounter, especially in modded form with higher corner rates, the loss of negative camber will not be that great.

OrbitalEllipses · 03-27-2012, 05:42 PM

Aw yeah, made the front page.

Are stock class SCCA autocross rules that you can now change the rear OR front swaybar? Bumping up to a stock STI bar may be a very cheap and effective upgrade for that crowd, as previously stated. Hm, I need to research autocross clubs around my area...

7thgear · 03-27-2012, 05:54 PM

Quote:

Originally Posted by skeeler

The camber loss under compression is probably my major concern with this car. My other cars are wishbone/wishbone or wishbone/multi-link, so they experience camber gain. Some say the struts shouldn't be a problem, even in an autocrossed or tracked car, but I'm still worried.

worried? what do you mean worried

worried as in how do i tell my wife i have aids worried?

the only thing MacPherson struts are going to do in place of a double wishbone is change the way you approach car setup.

Captain Snooze · 03-27-2012, 05:57 PM

Looks good but...
(my italics)

"One thing we noticed is that the car has a fairly low roll center and if the car is lowered much at all the lower control arms will point upward with the roll center quickly ending up below ground. This will do two things that are not so great; the car will have a large roll couple and a strong tendency to roll which must be countered with stiff springs and/or swaybar."
"Whiteline if you are reading this, this car really needs your long shank ball joints and tie rod ends to correct the roll center."

http://www.motoiq.com/magazine_artic...cion-fr-s.aspx

Turbowned · 03-27-2012, 06:08 PM

If it's not draggin' frame, it's not low enough bro d00d!

But seriously, that looks just about right! Too bad I'll be going with coilovers...

Anyone else notice this? If that's a Limited, that's about 60-70lbs below target! - EDIT: This is apparently without jack & tools, but usually manufacturer's listed weight is dry weight, so 2762 for a Premium and ~ 2780 for a Limited (before fluids?), and this is showing 2714 with full fluids and no jack/tools (13 gals of fuel weighs about 65lbs, for reference). That is AWESOME!

dsgerbc · 03-27-2012, 06:12 PM

Quote:

Originally Posted by Captain Snooze

Looks good but...
(my italics)

Oh, thanks. I remember I read something about roll center in a BRZ but couldn't remember where. So I'm definitely waiting to lower before WL comes up with longer RCK and then some, for a second revision of those

First iteration of the original WL RCK wasn't too durable.

Did anyone try these? Looks more adequate.

03-27-2012, 03:42 PM	#74
zoomzoomers Senior Member Join Date: Nov 2011 Drives: 2013 Subaru SWP BRZ Limited 6AT Location: Darkside Posts: 1,862 Thanks: 526 Thanked 305 Times in 207 Posts Mentioned: 9 Post(s) Tagged: 0 Thread(s)	The car looks awesome! Even better since I ordered the SWP! Thanks for the post. Can't wait for more info. And here I was planning to keep everything stock. __________________ Man Law#17:A man in the company of a hot, seductively dressed, woman MUST remain sober enough to fight! MODS: AVO tubes + filter, Cusco (F) strut brace w/ MC brace, Perrin CBE, Subaru OEM trunk tray, Grimmspeed front license re-locator & hood struts and Beatsonic rear cam.

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03-27-2012, 02:08 PM	#72
Racecomp Engineering Join Date: Nov 2011 Drives: 2016 BRZ, 2012 Paris Di2 & 2018 STI Location: Severn, MD Posts: 5,512 Thanks: 3,537 Thanked 7,407 Times in 3,030 Posts Mentioned: 310 Post(s) Tagged: 9 Thread(s)	Nothing like that, just a lot of things going on at once! - andrew

03-27-2012, 03:14 PM	#73
Draco-REX Corner Junkie Join Date: Feb 2012 Drives: 13 BRZ, 11 STI, 99 RS Location: Ohio Posts: 2,908 Thanks: 129 Thanked 1,521 Times in 702 Posts Mentioned: 11 Post(s) Tagged: 0 Thread(s)	Hmm.. The slippery slope.. Springs.. Then plates for camber. Then sways to compensate for the longer roll moments.. and the car becomes more knife-edged...... Hmm...

03-27-2012, 04:06 PM	#75
kayen Member Join Date: Mar 2011 Drives: 2002 WRX w/ STi Spec C Swap Location: Midwest Posts: 72 Thanks: 4 Thanked 10 Times in 5 Posts Mentioned: 0 Post(s) Tagged: 0 Thread(s)	RCE is definitely making it difficult keeping the BRZ stock lol. I have to try though, I want to run Stock Class AutoX, until either KW or AST Coils come out to jump to a Street Touring Classification.

03-27-2012, 04:22 PM	#76
KevinDuMa Senior Member Join Date: Jul 2011 Drives: 2004 Honda S2000 Location: Dallas, Texas Posts: 610 Thanks: 46 Thanked 20 Times in 20 Posts Mentioned: 2 Post(s) Tagged: 0 Thread(s)	Looking sweet...and it's in SWP it's meant to be!

03-27-2012, 04:37 PM	#77
BRZ Junior Member Join Date: Mar 2012 Drives: SWP BRZ Location: texas Posts: 8 Thanks: 0 Thanked 2 Times in 1 Post Mentioned: 53 Post(s) Tagged: 1 Thread(s)	i love the drop, but i'm really wondering how smooth it drives with it....

03-27-2012, 05:42 PM	#80
OrbitalEllipses Banned Join Date: Jan 2012 Drives: Attitude Location: MD Posts: 10,046 Thanks: 884 Thanked 4,890 Times in 2,903 Posts Mentioned: 123 Post(s) Tagged: 4 Thread(s)	Aw yeah, made the front page. Are stock class SCCA autocross rules that you can now change the rear OR front swaybar? Bumping up to a stock STI bar may be a very cheap and effective upgrade for that crowd, as previously stated. Hm, I need to research autocross clubs around my area...

03-27-2012, 05:57 PM	#82
Captain Snooze Because compromise ® Join Date: Jan 2012 Drives: Red Herring Location: australia Posts: 7,817 Thanks: 4,047 Thanked 9,548 Times in 4,194 Posts Mentioned: 60 Post(s) Tagged: 0 Thread(s)	Looks good but... (my italics) "One thing we noticed is that the car has a fairly low roll center and if the car is lowered much at all the lower control arms will point upward with the roll center quickly ending up below ground. This will do two things that are not so great; the car will have a large roll couple and a strong tendency to roll which must be countered with stiff springs and/or swaybar." "Whiteline if you are reading this, this car really needs your long shank ball joints and tie rod ends to correct the roll center." http://www.motoiq.com/magazine_artic...cion-fr-s.aspx

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