Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums - Camaro5.com
 
River City Camaro Customs
Go Back   Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums - Camaro5.com > Technical Camaro Topics > Suspension / Brakes / Chassis

Suspension / Brakes / Chassis All suspension, brakes and chassis discussions.

Reply
 
Thread Tools
Old 06-08-2013, 01:53 PM   #1
was619
Billy The Kid
 
was619's Avatar
 
Drives: Cyber Grey 2SS/RS
Join Date: Jun 2009
Location: North Alabama
Posts: 611
BMR 1 inch springs bottom out

So while installing a new front sway bar yesterday I noticed rub marks on the bottom side of my struts, the area just above the wheel... I have had BMR 1 inch drop springs on my car for a while(over 20k miles) along with the rear size 20x9 rims on all 4 corners(15k miles). What should I do to correct the wheel contacting the bottom side of the strut? cut the bump stops, get new struts...
__________________
CGM 2SS/RS[SIZE="1"]
Performance: LT Headers/Stainless Works cat-back, 225/233 Cam, 1LE 3.91 gears, Custom Tune, BMR suspension,
MGW Shifter, Stainless brake & clutch lines, Ideal G Master Cylinder, 275s on all 4 corners
Aesthetics: ZL1 Spoiler, DIY LED marker lights, AACPlasma DRL, Yellow Calipers, painted factory wheels
was619 is offline   Reply With Quote
Old 06-08-2013, 02:55 PM   #2
jeremywes
 
jeremywes's Avatar
 
Drives: 2012 Camaro SS
Join Date: Aug 2012
Location: Houston, TX
Posts: 506
Post a pic. I think I know what you're describing but a picture would help a lot. I suspect the front offset is wrong and a wheel spacer (or wheel with the proper offset) would solve it. I had a similar problem due to aggressive camber that I solved with camber plates.
jeremywes is offline   Reply With Quote
Old 06-09-2013, 03:57 AM   #3
was619
Billy The Kid
 
was619's Avatar
 
Drives: Cyber Grey 2SS/RS
Join Date: Jun 2009
Location: North Alabama
Posts: 611
Ahhhh yes. My front camber isn't set super agressive but it is at about -1.6 or so. I will try to pull a wheel off and get a picture for you. thanks!
__________________
CGM 2SS/RS[SIZE="1"]
Performance: LT Headers/Stainless Works cat-back, 225/233 Cam, 1LE 3.91 gears, Custom Tune, BMR suspension,
MGW Shifter, Stainless brake & clutch lines, Ideal G Master Cylinder, 275s on all 4 corners
Aesthetics: ZL1 Spoiler, DIY LED marker lights, AACPlasma DRL, Yellow Calipers, painted factory wheels
was619 is offline   Reply With Quote
Old 06-09-2013, 07:37 AM   #4
jeremywes
 
jeremywes's Avatar
 
Drives: 2012 Camaro SS
Join Date: Aug 2012
Location: Houston, TX
Posts: 506
Yeah running a factory 20x9 on the front with -1.6 degs of camber will be very close. A small wheel spacer will help prevent that but if you'd rather stay away from spacers a camber plate will let you run the strut knuckle at around -.75 or -1 deg and put the camber back in at the camber plate.
jeremywes is offline   Reply With Quote
Old 06-10-2013, 02:00 PM   #5
BMR Sales



 
Drives: 2010 2SS/RS R6P
Join Date: Sep 2009
Location: Seffner, FL
Posts: 2,419
Like Jeremy said it sounds like the clearance issue is due to the wheel you are running on the front and the amount of camber you are running with your current alignment. The easiest way to alleviate this would be to run a small wheel spacer or run less negative camber. Camber plates will also do it but it is going to be more work and $$$.
__________________
Keith Kanyuh
5th Gen Camaro Suspension Specialist
keith@bmrsuspension.com
www.bmrsuspension.com
Like us on Facebook!
BMR Sales is offline   Reply With Quote
Old 06-15-2013, 02:56 AM   #6
was619
Billy The Kid
 
was619's Avatar
 
Drives: Cyber Grey 2SS/RS
Join Date: Jun 2009
Location: North Alabama
Posts: 611
Just a few pictures of the damage on the bottom of the struts.

Name:  ImageUploadedByTapatalk1371282448.019999.jpg
Views: 313
Size:  67.1 KB

Name:  ImageUploadedByTapatalk1371282819.248470.jpg
Views: 325
Size:  168.4 KB
Name:  ImageUploadedByTapatalk1371282888.170319.jpg
Views: 316
Size:  174.8 KB

I suppose I will need to adjust my camber settings a but and get some camber plates.
__________________
CGM 2SS/RS[SIZE="1"]
Performance: LT Headers/Stainless Works cat-back, 225/233 Cam, 1LE 3.91 gears, Custom Tune, BMR suspension,
MGW Shifter, Stainless brake & clutch lines, Ideal G Master Cylinder, 275s on all 4 corners
Aesthetics: ZL1 Spoiler, DIY LED marker lights, AACPlasma DRL, Yellow Calipers, painted factory wheels
was619 is offline   Reply With Quote
Old 06-18-2013, 12:59 PM   #7
was619
Billy The Kid
 
was619's Avatar
 
Drives: Cyber Grey 2SS/RS
Join Date: Jun 2009
Location: North Alabama
Posts: 611
Jeremywes, bmr... any more insight given the pictures i posted?

thanks

__________________
CGM 2SS/RS[SIZE="1"]
Performance: LT Headers/Stainless Works cat-back, 225/233 Cam, 1LE 3.91 gears, Custom Tune, BMR suspension,
MGW Shifter, Stainless brake & clutch lines, Ideal G Master Cylinder, 275s on all 4 corners
Aesthetics: ZL1 Spoiler, DIY LED marker lights, AACPlasma DRL, Yellow Calipers, painted factory wheels
was619 is offline   Reply With Quote
Old 06-18-2013, 01:06 PM   #8
JusticePete
Rebel Leader
 
JusticePete's Avatar
 
Drives: Camaro Justice
Join Date: Jun 2007
Location: Texas
Posts: 15,477
The rub on the bottom of the strut spring seat is not destructive and not a cause for alarm.

What are your cold tire pressures?
__________________
JusticePete is offline   Reply With Quote
Old 06-18-2013, 01:38 PM   #9
JDP Tyler

 
JDP Tyler's Avatar
 
Drives: 2010 Camaro SS/RS
Join Date: Nov 2010
Location: SLC, UT
Posts: 6,931
What size tires are you running? Camber isn't really going to fix anything. I suggest going with a somewhat shorter tire next go around. But like Pete said, it's not a huge deal and it's not constantly rubbing. The only time I see it rubbing is at high speeds when the tires fully expand.

Best regards,

Tyler
888-308-6007
__________________

Click HERE to send me a PM | Sales@jdpmotorsports.com | www.jdpmotorsports.com | 888.308.6007
JDP Tyler is offline   Reply With Quote
Old 06-19-2013, 03:39 PM   #10
was619
Billy The Kid
 
was619's Avatar
 
Drives: Cyber Grey 2SS/RS
Join Date: Jun 2009
Location: North Alabama
Posts: 611
I am running a nitto invo 275-40/20 up front which is 28.66 inches according to a few different sites.

The main issue might be the change in offset and the wider tire. Since the offset of the factory front and rear wheels are different and I have the rear 9inch rims in the front and back now.

Thanks for the responses though!
__________________
CGM 2SS/RS[SIZE="1"]
Performance: LT Headers/Stainless Works cat-back, 225/233 Cam, 1LE 3.91 gears, Custom Tune, BMR suspension,
MGW Shifter, Stainless brake & clutch lines, Ideal G Master Cylinder, 275s on all 4 corners
Aesthetics: ZL1 Spoiler, DIY LED marker lights, AACPlasma DRL, Yellow Calipers, painted factory wheels
was619 is offline   Reply With Quote
Old 06-19-2013, 04:03 PM   #11
JusticePete
Rebel Leader
 
JusticePete's Avatar
 
Drives: Camaro Justice
Join Date: Jun 2007
Location: Texas
Posts: 15,477
Quote:
Originally Posted by was619 View Post
I am running a nitto invo 275-40/20 up front which is 28.66 inches according to a few different sites.

The main issue might be the change in offset and the wider tire. Since the offset of the factory front and rear wheels are different and I have the rear 9inch rims in the front and back now.

Thanks for the responses though!
Tire pressures decrease or increase tire movement. Your PSI is an important factor.

You are right about the offsets. You can use a 3 to 5mm spacer to move the wheel out. Check the amount of thread captured in the lug nuts. As long as the nut is filled with threads you are good to go.

Pushing the front wheels out will also improve your handling. adding just 6mm in front track reduces understeer significantly.
__________________
JusticePete is offline   Reply With Quote
Old 06-20-2013, 12:18 AM   #12
was619
Billy The Kid
 
was619's Avatar
 
Drives: Cyber Grey 2SS/RS
Join Date: Jun 2009
Location: North Alabama
Posts: 611
Quote:
Originally Posted by JusticePete View Post
Tire pressures decrease or increase tire movement. Your PSI is an important factor.

You are right about the offsets. You can use a 3 to 5mm spacer to move the wheel out. Check the amount of thread captured in the lug nuts. As long as the nut is filled with threads you are good to go.

Pushing the front wheels out will also improve your handling. adding just 6mm in front track reduces understeer significantly.
They are at 36 'cold' (north Alabama 90+ temps most of the day)

I will see what I can do as far as spacers go. Pete what's your opinion on larger spacers like hubcentric 20-25mm spacers? That way the wheels we be mostly flush with the fenders
__________________
CGM 2SS/RS[SIZE="1"]
Performance: LT Headers/Stainless Works cat-back, 225/233 Cam, 1LE 3.91 gears, Custom Tune, BMR suspension,
MGW Shifter, Stainless brake & clutch lines, Ideal G Master Cylinder, 275s on all 4 corners
Aesthetics: ZL1 Spoiler, DIY LED marker lights, AACPlasma DRL, Yellow Calipers, painted factory wheels
was619 is offline   Reply With Quote
Old 06-20-2013, 10:09 AM   #13
BMR Sales



 
Drives: 2010 2SS/RS R6P
Join Date: Sep 2009
Location: Seffner, FL
Posts: 2,419
Quote:
Originally Posted by was619 View Post
Jeremywes, bmr... any more insight given the pictures i posted?

thanks

I thought the tire was rubbing on the actual body of the shock, not the springs perch. Since it rubbing on the spring perch it definitely due to the the change in offset and the wider tire. I can tell you that I am not a huge fan of those larger hubcentric spacers. I would recommend just throwing a small spacer on and you should be good to go.
__________________
Keith Kanyuh
5th Gen Camaro Suspension Specialist
keith@bmrsuspension.com
www.bmrsuspension.com
Like us on Facebook!
BMR Sales is offline   Reply With Quote
Old 06-20-2013, 03:43 PM   #14
JusticePete
Rebel Leader
 
JusticePete's Avatar
 
Drives: Camaro Justice
Join Date: Jun 2007
Location: Texas
Posts: 15,477
Quote:
Originally Posted by was619 View Post
They are at 36 'cold' (north Alabama 90+ temps most of the day)

I will see what I can do as far as spacers go. Pete what's your opinion on larger spacers like hubcentric 20-25mm spacers? That way the wheels we be mostly flush with the fenders
36 is more than enough so we can't gain anything there.

Way too much. At the most you'll need 6mm per side. If that is what's required you install ARP studs and get billet aluminum spacers. First try 3 or 4mm spacers. Cover the bare steel mark on the struts with a single layer of masking tape. If the tape stays in place you are good to go. If not we know what to do next.
__________________
JusticePete is offline   Reply With Quote
Old 06-20-2013, 04:05 PM   #15
was619
Billy The Kid
 
was619's Avatar
 
Drives: Cyber Grey 2SS/RS
Join Date: Jun 2009
Location: North Alabama
Posts: 611
Awesome! I will be ording some small spacers later today.

Great to know that it basically has nothing to do with the change in springs and Is most definitely the change in wheel/tire

Thanks for the Insight Pete and BMR
__________________
CGM 2SS/RS[SIZE="1"]
Performance: LT Headers/Stainless Works cat-back, 225/233 Cam, 1LE 3.91 gears, Custom Tune, BMR suspension,
MGW Shifter, Stainless brake & clutch lines, Ideal G Master Cylinder, 275s on all 4 corners
Aesthetics: ZL1 Spoiler, DIY LED marker lights, AACPlasma DRL, Yellow Calipers, painted factory wheels
was619 is offline   Reply With Quote
Old 06-21-2013, 08:27 AM   #16
jeremywes
 
jeremywes's Avatar
 
Drives: 2012 Camaro SS
Join Date: Aug 2012
Location: Houston, TX
Posts: 506
Or... New wheels! :-D
jeremywes is offline   Reply With Quote
Old 06-22-2013, 10:41 PM   #17
was619
Billy The Kid
 
was619's Avatar
 
Drives: Cyber Grey 2SS/RS
Join Date: Jun 2009
Location: North Alabama
Posts: 611
Quote:
Originally Posted by jeremywes View Post
Or... New wheels! :-D
That's what I should have done a while ago.
Before painting the stock wheels or buying another pair of rears or any of that.
Eventually I will
__________________
CGM 2SS/RS[SIZE="1"]
Performance: LT Headers/Stainless Works cat-back, 225/233 Cam, 1LE 3.91 gears, Custom Tune, BMR suspension,
MGW Shifter, Stainless brake & clutch lines, Ideal G Master Cylinder, 275s on all 4 corners
Aesthetics: ZL1 Spoiler, DIY LED marker lights, AACPlasma DRL, Yellow Calipers, painted factory wheels
was619 is offline   Reply With Quote
 
Reply

Thread Tools

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT -5. The time now is 04:34 AM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2014, vBulletin Solutions, Inc.