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-   -   Will stiffer springs help me? (http://www.the370z.com/brakes-suspension/136912-will-stiffer-springs-help-me.html)

yingiee 11-12-2021 12:18 AM

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.

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

3 Attachment(s)
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 (Post 4013280)
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

1 Attachment(s)
Quote:

Originally Posted by justin_boy (Post 4013338)
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 (Post 4013342)
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 (Post 4013347)
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 (Post 4013349)
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

1 Attachment(s)
Quote:

Originally Posted by yingiee (Post 4013351)
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 (Post 4013337)
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. :rofl2:

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 (Post 4013353)
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 (Post 4013358)
You got baby tires. :rofl2:

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 (Post 4013362)
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.

abm89 11-12-2021 10:42 PM

19x11 +22 here with Michelin PS4S 305. But I’m running high rake so it won’t ever rub.

OptionZero 11-13-2021 11:16 PM

Quote:

Originally Posted by k67p67 (Post 4013374)
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.


If those are actually what the HKS comes with then the front spring rate might be an issue. IIRC most others are in the 13-15 range in front

Your front camber sucks, throw those ******* SPC arms in the trash. Get SPL or voodoo, crank it to -3 camber and 6 or 7 caster

Check the front bumper tab which is a common spot to rub - it may not be the top of the fender. That tab can be shaved or relocated.

Also, your rear toe seems double what is recommended.
Actually your front toe seems high as well. Camber does not kill tires - toe does.

Those are common specs that many have run without rubbing
I have 20x11 +15 w/ 275/30

It is not your wheels, it’s a combination of alignment being weak, springs being soft, and fender mods


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