KW V3: To flip or not to flip - Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community

wootwoot · 04-23-2013, 01:55 AM

I am interested in a set of KW V3's. I know some of you guys are swapping the springs front to rear. I was hoping KW owners could give me some input as to if and why (or why not) you switched your springs. For reference, this car will be a daily driver that will see track duty whenever time and money is available. Hopefully a few times per year. I read on the KW web page that their engineers worked very hard to determine the spring rates and they should not be changed (which I am not sure that I believe).

robispec · 04-23-2013, 02:24 AM

lots of experiance with these..
Come by get robispec'ed!

wootwoot · 04-23-2013, 02:37 AM

lol.. what does that entail?

I am up in norcal. Otherwise I would come to your shop for a chat.

robispec · 04-23-2013, 02:44 AM

got LOTS o parts!
Roll center correction for stock front lower control arms
Bump steerable tierod ends
Better than stock KW's
High travel rear topmounts

4 point weld in safety...
BIG radiator and oil cooler single solution.

Robi

wootwoot · 04-23-2013, 02:49 AM

I think I'll PM you.

Anyone else have anything to say about flipping the springs?

Hanakuso · 04-23-2013, 03:08 AM

Quote:

Originally Posted by robispec

High travel rear topmounts

Pics!

Scooby South · 04-23-2013, 11:53 AM

Its a personal preference I think.. I have mine flipped...it just made sense to me.. that the *stronger, higher spring rate goes up front.. I actually have 550lb springs awaiting install ...then the higher KW's might go back on the rear.. got some testing to do.. otherwise.. it would appear to me that the higher Rear rates would cause the Rear to be loose.. havn't tested that theory but it just makes sense.. I am pretty neutral with the higher ones up front.. I am also running a bigger front Bar.. as well as camber plates up front.. Hope that helps.. LMK if you have any more questions..

Bill

Racecomp Engineering · 04-23-2013, 12:10 PM

On our RCE T2 Clubsports (based on KW clubsports) we start with even rates front to rear. We can customize but for most people the even rates work well. There are a lot of variables to consider so feel free to call or PM us.

- Andy

wootwoot · 04-23-2013, 01:00 PM

Thanks guys. I know there are many variables here. Tire size and sway bars being two big ones. I'm just trying to figure out where the best place to start is.

Anyone else? Is there anyone that ran them as they come and then flipped?

Also, I see there are some autoXer's here as well as some track guys. How will those different venues effect peoples input?

GTM_Challenge · 04-23-2013, 07:04 PM

People called me crazy when I suggested running more spring in the front than the rear a few weeks ago.

That being said, I'll be swapping the KW Clubsport springs front and rear if the ASTs don't come in first.

Scooby South · 04-23-2013, 07:43 PM

Quote:

Originally Posted by GTM_Challenge

People called me crazy when I suggested running more spring in the front than the rear a few weeks ago.

That being said, I'll be swapping the KW Clubsport springs front and rear if the ASTs don't come in first.

I have been flipped on mine since I got them.. back last June..

.. most of the folks I know are flipped.. Not sure why KW made the call to have the higher spring rate in the rear.. makes no sense..

Bill

GTM_Challenge · 04-23-2013, 07:51 PM

Quote:

Originally Posted by Scooby South

I have been flipped on mine since I got them.. back last June..

.. most of the folks I know are flipped.. Not sure why KW made the call to have the higher spring rate in the rear.. makes no sense..

Bill

Where were you when I need backup?

It was all "but the motion ratio this, the motion ratio that" talk. I gave up.

Scooby South · 04-23-2013, 07:57 PM

Quote:

Originally Posted by GTM_Challenge

Where were you when I need backup?

It was all "but the motion ratio this, the motion ratio that" talk. I gave up.

If I would have seen it. I would have backed you up..

.. sorry man. I know that most of us using the Var 3's for autocrossing are flipped. and that includes some of the other national level builds..

Bill

mrk1 · 04-23-2013, 10:10 PM

I prefer a higher rear rate. No experience with this KW swap but talking in general and in a track setting not autoX

04-23-2013, 01:55 AM	#1
wootwoot Senior Member Join Date: Jul 2012 Drives: FRS Location: Cali Posts: 1,558 Thanks: 188 Thanked 462 Times in 264 Posts Mentioned: 9 Post(s) Tagged: 0 Thread(s)	KW V3: To flip or not to flip I am interested in a set of KW V3's. I know some of you guys are swapping the springs front to rear. I was hoping KW owners could give me some input as to if and why (or why not) you switched your springs. For reference, this car will be a daily driver that will see track duty whenever time and money is available. Hopefully a few times per year. I read on the KW web page that their engineers worked very hard to determine the spring rates and they should not be changed (which I am not sure that I believe).

04-23-2013, 02:44 AM	#4
robispec Senior Member Join Date: Oct 2012 Drives: Black frs project Location: Socal Posts: 960 Thanks: 189 Thanked 886 Times in 381 Posts Mentioned: 190 Post(s) Tagged: 1 Thread(s)	got LOTS o parts! Roll center correction for stock front lower control arms Bump steerable tierod ends Better than stock KW's High travel rear topmounts 4 point weld in safety... BIG radiator and oil cooler single solution. Robi Last edited by robispec; 04-28-2013 at 11:56 PM.

04-23-2013, 10:10 PM	#14
mrk1 Senior Member Join Date: Mar 2013 Drives: Sterling BRZ Ltd Location: New England Posts: 1,702 Thanks: 403 Thanked 1,389 Times in 671 Posts Mentioned: 21 Post(s) Tagged: 2 Thread(s)	I prefer a higher rear rate. No experience with this KW swap but talking in general and in a track setting not autoX __________________ The Build Thread GT28RS - eBoost2 - 3.91 Final Drive - Supra LSD

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04-23-2013, 02:24 AM	#2
robispec Senior Member Join Date: Oct 2012 Drives: Black frs project Location: Socal Posts: 960 Thanks: 189 Thanked 886 Times in 381 Posts Mentioned: 190 Post(s) Tagged: 1 Thread(s)	lots of experiance with these.. Come by get robispec'ed!

04-23-2013, 02:37 AM	#3
wootwoot Senior Member Join Date: Jul 2012 Drives: FRS Location: Cali Posts: 1,558 Thanks: 188 Thanked 462 Times in 264 Posts Mentioned: 9 Post(s) Tagged: 0 Thread(s)	lol.. what does that entail? I am up in norcal. Otherwise I would come to your shop for a chat.

04-23-2013, 02:49 AM	#5
wootwoot Senior Member Join Date: Jul 2012 Drives: FRS Location: Cali Posts: 1,558 Thanks: 188 Thanked 462 Times in 264 Posts Mentioned: 9 Post(s) Tagged: 0 Thread(s)	I think I'll PM you. Anyone else have anything to say about flipping the springs?

04-23-2013, 12:10 PM	#8
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)	On our RCE T2 Clubsports (based on KW clubsports) we start with even rates front to rear. We can customize but for most people the even rates work well. There are a lot of variables to consider so feel free to call or PM us. - Andy

04-23-2013, 01:00 PM	#9
wootwoot Senior Member Join Date: Jul 2012 Drives: FRS Location: Cali Posts: 1,558 Thanks: 188 Thanked 462 Times in 264 Posts Mentioned: 9 Post(s) Tagged: 0 Thread(s)	Thanks guys. I know there are many variables here. Tire size and sway bars being two big ones. I'm just trying to figure out where the best place to start is. Anyone else? Is there anyone that ran them as they come and then flipped? Also, I see there are some autoXer's here as well as some track guys. How will those different venues effect peoples input?

04-23-2013, 07:04 PM	#10
GTM_Challenge Join Date: Aug 2012 Drives: On track Location: Chicago Posts: 527 Thanks: 120 Thanked 285 Times in 166 Posts Mentioned: 5 Post(s) Tagged: 0 Thread(s)	People called me crazy when I suggested running more spring in the front than the rear a few weeks ago. That being said, I'll be swapping the KW Clubsport springs front and rear if the ASTs don't come in first.

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