Will stiffer springs help me?

yingiee · 11-12-2021, 12:18 AM

I have rubbing issues on my front from bumps/dips on highway and shitty city roads. I'm pretty sure its because of my ride height and fatter tires. I love the settings I have now but want to stop the rubbing because I just got a new bumper and don't want to mess it up . If I want to fix the issue and keep my current setup, not raising it, not buying smaller tires, not getting more camber, will swapping to stiffer springs help?
I have Hipermax IV GT, 265/35 front tires, like 1 finger gap, maxed out dampening on the Hipermax, pretty neutral camber around -1.5degree.

OptionZero · 11-12-2021, 11:58 AM

what are your wheel specs
front AND rear diameter, width, offset
front AND rear tire size

post a picture of your wide height

fender modifications if any

suspension arms if any

complete alignment spec

If you want people to help you, give them the appropriate information

Rubbing is rarely solved just with spring rate increase

Do it right

yingiee · 11-12-2021, 01:59 PM

Front 19 x 9.5 +22, 265/35/19
Rear 19 x 10.5 +12, 305/30/19

SPC front upper control arms.
SPC rear camber arms and toe bolts

Previously i had more camber and was riding lower than now.
Pictures is raise + more neutral camber.
I would like to lower the height just a bit more.

justin_boy · 11-12-2021, 02:21 PM

Quote:

Originally Posted by yingiee

I have rubbing issues on my front from bumps/dips on highway and shitty city roads. I'm pretty sure its because of my ride height and fatter tires. I love the settings I have now but want to stop the rubbing because I just got a new bumper and don't want to mess it up . If I want to fix the issue and keep my current setup, not raising it, not buying smaller tires, not getting more camber, will swapping to stiffer springs help?
I have Hipermax IV GT, 265/35 front tires, like 1 finger gap, maxed out dampening on the Hipermax, pretty neutral camber around -1.5degree.

id go more camber before i went stiffer springs, as long as the bottom of the car isnt bottoming out

Spooler · 11-12-2021, 02:44 PM

Raise the car up a little.

yingiee · 11-12-2021, 03:14 PM

Quote:

Originally Posted by justin_boy

id go more camber before i went stiffer springs, as long as the bottom of the car isnt bottoming out

I had more camber previously but still rubbed at top of tire side wall. Went more neutral because my previous tires were toast from the camber.

Quote:

Originally Posted by Spooler

Raise the car up a little.

I want to lower my car or maintain current height, not raise.

Running pretty standard TE37 specs, what coilovers are you guys running with TEs and how low is your ride height without any rubbing?

redondoaveb · 11-12-2021, 03:52 PM

Quote:

Originally Posted by yingiee

I had more camber previously but still rubbed at top of tire side wall. Went more neutral because my previous tires were toast from the camber.

I want to lower my car or maintain current height, not raise.

Running pretty standard TE37 specs, what coilovers are you guys running with TEs and how low is your ride height without any rubbing?

What are your current ride height measurements?

yingiee · 11-12-2021, 04:25 PM

Quote:

Originally Posted by redondoaveb

What are your current ride height measurements?

Front driver - 26 1/4 floor/fender , 13 3/4 center/fender
Front pass - 26 1/2 floor/fender , 13 3/4 center/fender

Rear driver - 26 3/8 floor/fender , 13 3/4 center/fender
Rear pass - 26 1/8 floor/fender , 13 3/4 center/fender

redondoaveb · 11-12-2021, 05:02 PM

Quote:

Originally Posted by yingiee

Front driver - 26 1/4 floor/fender , 13 3/4 center/fender
Front pass - 26 1/2 floor/fender , 13 3/4 center/fender

Rear driver - 26 3/8 floor/fender , 13 3/4 center/fender
Rear pass - 26 1/8 floor/fender , 13 3/4 center/fender

I'm running a 20 x 9 +22 front with 255/35's. My ride height is 26-7/8" and 20 x 11 +25 rear with 315/30's and ride height of 27" and get no rubbing. At 26-1/2" ride height front and rear, I got rubbing over certain bumps on the front so I raised the ride height of the car approx 1/2"

Rusty · 11-12-2021, 05:28 PM

Quote:

Originally Posted by yingiee

Front 19 x 9.5 +22, 265/35/19
Rear 19 x 10.5 +12, 305/30/19

SPC front upper control arms.
SPC rear camber arms and toe bolts

Previously i had more camber and was riding lower than now.
Pictures is raise + more neutral camber.
I would like to lower the height just a bit more.

You got baby tires.

Change your camber in the front or raise it up. No other choice.

If you go to stiffer springs. You have to change your dampening.

yingiee · 11-12-2021, 05:58 PM

Quote:

Originally Posted by redondoaveb

I'm running a 20 x 9 +22 front with 255/35's. My ride height is 26-7/8" and 20 x 11 +25 rear with 315/30's and ride height of 27" and get no rubbing. At 26-1/2" ride height front and rear, I got rubbing over certain bumps on the front so I raised the ride height of the car approx 1/2"

What coilovers you running?

yingiee · 11-12-2021, 06:05 PM

Quote:

Originally Posted by Rusty

You got baby tires.

Change your camber in the front or raise it up. No other choice.

If you go to stiffer springs. You have to change your dampening.

I don’t mind stiffer springs because I feel the GT is pretty soft. And since my dampening setting is maxed out I have a lot of room to play with on stiffer springs. But will it not rub or less rub

cv129 · 11-12-2021, 06:16 PM

Throw a giant bump stop on it, or throw some 2000 pounds spring on it. Lol

redondoaveb · 11-12-2021, 06:34 PM

Quote:

Originally Posted by yingiee

What coilovers you running?

KW V3's

k67p67 · 11-12-2021, 08:06 PM

I found the HKS Hipermax IV GT coilovers to have overly-soft spring rates (10k/9k). I considered going with the HKS Hipermax IV SP, which has rates of 14k/16k, but ended up choosing Powertrix Ultra-Lite coilovers (13k/11k rates with optional Swift springs). Having said that, you should consider just adding a bit more camber up front. Camber won't kill your front tires. That results from excessive toe.

11-12-2021, 12:18 AM	#1 (permalink)
yingiee Base Member Join Date: Jan 2018 Location: NY Posts: 55 Drives: 2016 Sport Tech Rep Power: 8	Will stiffer springs help me? I have rubbing issues on my front from bumps/dips on highway and shitty city roads. I'm pretty sure its because of my ride height and fatter tires. I love the settings I have now but want to stop the rubbing because I just got a new bumper and don't want to mess it up . If I want to fix the issue and keep my current setup, not raising it, not buying smaller tires, not getting more camber, will swapping to stiffer springs help? I have Hipermax IV GT, 265/35 front tires, like 1 finger gap, maxed out dampening on the Hipermax, pretty neutral camber around -1.5degree.

11-12-2021, 11:58 AM	#2 (permalink)
OptionZero A True Z Fanatic Join Date: Apr 2011 Location: Sacramento Posts: 3,253 Drives: 15 370Z Nismo 6MT Rep Power: 214100	what are your wheel specs front AND rear diameter, width, offset front AND rear tire size post a picture of your wide height fender modifications if any suspension arms if any complete alignment spec If you want people to help you, give them the appropriate information Rubbing is rarely solved just with spring rate increase Do it right JARblue, Chuck33079, Rusty and 2 others like this. __________________ OptionZero Build Thread

11-12-2021, 02:44 PM	#5 (permalink)
Spooler A True Z Fanatic Join Date: Jun 2014 Location: Ga Posts: 13,921 Drives: 2013 Nismo 370z Rep Power: 2684392	Raise the car up a little. JARblue likes this.

11-12-2021, 06:16 PM	#13 (permalink)
cv129 A True Z Fanatic Join Date: Jul 2011 Location: Dallas, TX Posts: 3,250 Drives: 09 Nismo, 16 Nismo Rep Power: 163995	Throw a giant bump stop on it, or throw some 2000 pounds spring on it. Lol __________________ Setrab \| RE-71 \| SPL \| JRZ \| Nismo \| ARK \| Whiteline \| RacingBrake \| CJM Oil Pan \| Ti shield

11-12-2021, 08:06 PM	#15 (permalink)
k67p67 Enthusiast Member Join Date: Oct 2016 Location: Rancho Cucamonga, CA Posts: 311 Drives: 2017 Nismo Tech 6MT Rep Power: 3937	I found the HKS Hipermax IV GT coilovers to have overly-soft spring rates (10k/9k). I considered going with the HKS Hipermax IV SP, which has rates of 14k/16k, but ended up choosing Powertrix Ultra-Lite coilovers (13k/11k rates with optional Swift springs). Having said that, you should consider just adding a bit more camber up front. Camber won't kill your front tires. That results from excessive toe. __________________ SOLD2017 370Z Nismo Tech 6MT PART OUT IN PROGRESS Work \| Motordyne \| Powertrix \| Swift \| Michelin \| Takeda \| Hotchkis \| RJM \| Voodoo13 \| SPL \| SPC \| Z1 Motorsports \| ZSpeed \| Morimoto \| Craft Square Last edited by k67p67; 11-12-2021 at 08:11 PM.

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