You are browsing camaro5 
 |
|
04-06-2011, 11:11 AM
|
#1 |
|
CamaroFans.com
|
Spring Install affected my car's weight - NOT GOOD for racing
Anyone who's installed springs might be interested in this.
Been having problems getting off the line at the track lately. I've got trailing arms, swaybars, lowering springs and 18" Mickey Thompson DR's and still can't break a 1.9 60' First thing we noticed was only the right tire was spinning on burnouts so we installed the JRE posi mod and went straight back out to the track. Spinning both tires now, but at launch and every shift the car would break loose and not run in a straight line. Had to fight it all the way down the track to the point it was scary... Owen at ARD suggested we put it on the scales and check all the suspension parts. The results totally shocked me (not him) as you can see in the pics the left rear mounts were not tightened down in the original factory position and there is a lot of play up there. I've had lowering springs for a while, the car is perfectly aligned and drives great. The recent round of HP upgrades and running at the track exposed this one in a couple of ways. Left tire would not spin and car would not leave straight. We also have GoPro video somewhere that shows the car diving to one side on takeoff. I would have never know this without scales... Check out the left rear at 490lbs... a simple loosen bolts and pry back over brought it to 886 which was much better. Then we put a 1/8 shim under each bolt and got it even closer.  EDIT: Quite sure my ONE WHEEL BURNOUT was attributed to this, however the posi mod does work quite well. I now do much better burnouts and getting 1.70 or better 60' times
__________________
 Last edited by mlee; 05-20-2011 at 11:00 AM. |
|
|
|
04-06-2011, 12:25 PM
|
#2 |
|
I refuse to go smurfy
Drives: 2009 Challenger SRT8, 2010 Camaro Join Date: Nov 2009
Location: MD
Posts: 1,311
|
that's some badass info...thanks!
__________________
 -Bill...the Camaro was my wifes, now she's got a minivan Challenger- 2009 Dodge Challenger SRT8 Procharger D1 Supercharger: 10.895 @ 126.720 MPH |
|
|
|
|
04-06-2011, 12:41 PM
|
#3 |
|
How U Doin?
|
Thanks for the info Mike! I'm curious to know if I'll experience the same issues.
|
|
|
|
|
04-06-2011, 12:52 PM
|
#4 |
|
:chevy:
Drives: 2LT/RS Join Date: Jun 2008
Location: Toronto
Posts: 13,033
|
wow great info, so how exactle would one look out for this when installing drop springs? Sorry if it sounds like a dumb question. do I just make sure they ine up with the intial markings?
__________________
CAMARO
Consult your doctor before taking Camaro Side effects include Sudden increase in Heart Rate, Insomnia and occasional hallucinations If you experience Permagrin exceeding 4 hours after taking Camaro, seek immediate Camaro5 Help CAMARO Bringing excitment back into the Garage |
|
|
|
|
04-06-2011, 01:27 PM
|
#5 | |
|
CamaroFans.com
|
Quote:
If your racing I would find someone with scales like these to see where you are at... It's a pretty quick job but finding scales might be a problem Here's one video of a slightly crooked run, but the go pro on the front of the car really shows it last week.
__________________
|
|
|
|
|
|
04-06-2011, 01:33 PM
|
#6 |
            Drives: Love the one you're with Join Date: Sep 2009
Location: Downtown Charlie Brown
Posts: 11,850
|
Why did the overall weight go up 6lbs just from making an adjustment?
|
|
|
|
|
04-06-2011, 01:44 PM
|
#7 | |
|
CamaroFans.com
|
Quote:
We swapped the rear tires and wheels while we had them off adjusting springs. The 18" Mickeys are getting packed in the trailer for C5Fest and I have a set of Nitto DR's on the stock rims. Now I have to swap them all out at home to roll on the 22's to AZ And I did weigh the tires while they were off. 58 lbs for the 18" 61 lbs for the 20" and it even adds up...
__________________
Last edited by mlee; 10-13-2011 at 10:57 AM. |
|
|
|
|
|
04-06-2011, 01:51 PM
|
#8 |
Drives: 2013 IOM ZL1 Join Date: Nov 2009
Location: Manteca CA
Posts: 683
|
How will coilovers prevent this? Don't they mount to the same holes?
|
|
|
|
|
04-06-2011, 02:02 PM
|
#9 | |
|
CamaroFans.com
|
Quote:
 ...but you would be able to adjust them up or down to change the weigth distribution. I was also suprised at the effect a small amount of air pressure does...
__________________
|
|
|
|
|
|
04-06-2011, 02:05 PM
|
#10 |
 Drives: N/A Join Date: Feb 2011
Location: Miami, FL
Posts: 98
|
Interesting info! Thank for posting it up.
|
|
|
|
|
04-06-2011, 02:15 PM
|
#11 |
|
Drives: 2013 IOM ZL1 Join Date: Nov 2009
Location: Manteca CA
Posts: 683
|
It sounds like whichever you use, checking the weight distribution is necessary.
|
|
|
|
|
04-06-2011, 02:29 PM
|
#12 | |
|
CamaroFans.com
|
Quote:
I also noticed the last Total weight is one lb more. That was the small shims... These scales are pretty damn sensitive.
__________________
|
|
|
|
|
|
04-06-2011, 02:53 PM
|
#13 | |
|
Quote:
|
|
|
|
|
|
04-06-2011, 03:00 PM
|
#14 |
|
Bayou City Muscle Cars
Drives: 2010 Camaro SS/RS 427LSX w/ 2 Kits Join Date: Aug 2010
Location: Cypress, TX
Posts: 84
|
Owen knows some stuff, doesn't he!
|
|
|
|
|
|
|
|
 |
| Thread Tools | |
|
|
Similar Threads
|
||||
| Thread | Thread Starter | Forum | Replies | Last Post |
| PFADT DROP SPRING INSTALL QUESTION ... | BLACOWT | Suspension / Brakes / Chassis | 14 | 04-06-2011 11:48 AM |
| Brembo install and weight specs | Beauwulf | Camaro V6 LLT Engine, Exhaust, and Bolt-Ons | 8 | 12-26-2010 06:17 AM |
| Think about this and the Z28 5th gen | 13F20 | Camaro ZL1 Forum - ZL1 Specific Topics | 41 | 09-04-2010 12:59 AM |
| Pedders Suspension Benchmark Track Testing and New Jersey Track Day | Info@PeddersUSA.com | USA - NY / NJ / PA | 35 | 10-26-2009 05:20 PM |
| Crash tests downgrade small cars | KILLER74Z28 | General Automotive + Other Cars Discussion | 0 | 12-19-2006 03:31 AM |
