Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums - Camaro5.com
 
Phastek Performance
Go Back   Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums - Camaro5.com > Technical Camaro Topics > Dragstrip and Launch Techniques Discussion


Reply
 
Thread Tools
Old 11-11-2013, 03:27 PM   #1
Pro Stock John
Writer
 
Pro Stock John's Avatar
 
Drives: 2010 SS / 1951 Mercury
Join Date: May 2009
Location: Chicago, IL
Posts: 6,429
Riding high in the back?

I feel like my car is high in the back. I have some weight out but nothing crazy, car is overall maybe 200-240 lbs than stock.

Anyone see how much gap I have between the tires and the body?

__________________
PROJECT HEAVY CHEVY
Camaro Now: Mods for the Masses Part I | Part II
13.15@106 1.95 | 100% Stock
12.37@112 1.85 | + Kooks Headers/Cats + 20" 555R + CAI + BW TB + UDP + Tune
12.06@113 1.70 | + CD 3200 + 18" NT05R + RCR Intake + NE OTR + GPI Tune
11.84@115 1.59 | + 3.91s + Race Star 17x7 Fronts
10.90@125 1.47 | + GPI VVT Cam + BW Ported Heads + CD 3800
Pro Stock John is offline   Reply With Quote
Old 11-11-2013, 03:53 PM   #2
SSE 4 2SS
Boosted Moderator
 
SSE 4 2SS's Avatar
 
Drives: Bone Stock LS3
Join Date: Sep 2009
Location: Kyle Tx
Posts: 14,443
Send a message via AIM to SSE 4 2SS Send a message via Yahoo to SSE 4 2SS
Quote:
Originally Posted by Pro Stock John View Post
I feel like my car is high in the back. I have some weight out but nothing crazy, car is overall maybe 200-240 lbs than stock.

Anyone see how much gap I have between the tires and the body?

Yup, Supercars will help... Lower the whole thing...
__________________
If the car feels like it is on rails, you are probably driving too slow. -Ross Bentley

Horsepower is how fast you hit the wall.
Torque is how far you take the wall with you.

“If everything seems under control, you're just not going fast enough.” Mario Andretti

If you can turn, you ain't going fast enough...
SSE 4 2SS is offline   Reply With Quote
Old 11-11-2013, 06:33 PM   #3
toNspahreP
Account Suspended
 
Drives: SS
Join Date: Aug 2013
Location: jawja
Posts: 129
Mine sits about there. There is a measurable HP difference at different ride heights due to the CV axles having to work harder if the car is super low. We actually tested this on a dyno - you'd be shocked, really. 12hp difference with the axles level vs the car slammed to the ground and the axles canted. Needless to say I've been setting rear ride height by axle angle ever since.
toNspahreP is offline   Reply With Quote
Old 11-11-2013, 07:16 PM   #4
Pro Stock John
Writer
 
Pro Stock John's Avatar
 
Drives: 2010 SS / 1951 Mercury
Join Date: May 2009
Location: Chicago, IL
Posts: 6,429



Sent from my iPhone using Tapatalk
__________________
PROJECT HEAVY CHEVY
Camaro Now: Mods for the Masses Part I | Part II
13.15@106 1.95 | 100% Stock
12.37@112 1.85 | + Kooks Headers/Cats + 20" 555R + CAI + BW TB + UDP + Tune
12.06@113 1.70 | + CD 3200 + 18" NT05R + RCR Intake + NE OTR + GPI Tune
11.84@115 1.59 | + 3.91s + Race Star 17x7 Fronts
10.90@125 1.47 | + GPI VVT Cam + BW Ported Heads + CD 3800
Pro Stock John is offline   Reply With Quote
Old 11-11-2013, 07:17 PM   #5
Pro Stock John
Writer
 
Pro Stock John's Avatar
 
Drives: 2010 SS / 1951 Mercury
Join Date: May 2009
Location: Chicago, IL
Posts: 6,429



Sent from my iPhone using Tapatalk
__________________
PROJECT HEAVY CHEVY
Camaro Now: Mods for the Masses Part I | Part II
13.15@106 1.95 | 100% Stock
12.37@112 1.85 | + Kooks Headers/Cats + 20" 555R + CAI + BW TB + UDP + Tune
12.06@113 1.70 | + CD 3200 + 18" NT05R + RCR Intake + NE OTR + GPI Tune
11.84@115 1.59 | + 3.91s + Race Star 17x7 Fronts
10.90@125 1.47 | + GPI VVT Cam + BW Ported Heads + CD 3800
Pro Stock John is offline   Reply With Quote
Old 11-11-2013, 07:41 PM   #6
white ZL1

 
Drives: none
Join Date: Aug 2011
Location: DFW area
Posts: 1,846
Quote:
Originally Posted by toNspahreP View Post
Mine sits about there. There is a measurable HP difference at different ride heights due to the CV axles having to work harder if the car is super low. We actually tested this on a dyno - you'd be shocked, really. 12hp difference with the axles level vs the car slammed to the ground and the axles canted. Needless to say I've been setting rear ride height by axle angle ever since.
Now that.....is good information!
white ZL1 is offline   Reply With Quote
Old 11-11-2013, 07:44 PM   #7
Pro Stock John
Writer
 
Pro Stock John's Avatar
 
Drives: 2010 SS / 1951 Mercury
Join Date: May 2009
Location: Chicago, IL
Posts: 6,429
I'm not looking to go super low and slam the car but I will have to lower it, car is visually so raked that has to be affecting weight transfer.

Nspar, Are the COPO front struts different, more extension? Jeff mentioned that the other day I found that interesting.
__________________
PROJECT HEAVY CHEVY
Camaro Now: Mods for the Masses Part I | Part II
13.15@106 1.95 | 100% Stock
12.37@112 1.85 | + Kooks Headers/Cats + 20" 555R + CAI + BW TB + UDP + Tune
12.06@113 1.70 | + CD 3200 + 18" NT05R + RCR Intake + NE OTR + GPI Tune
11.84@115 1.59 | + 3.91s + Race Star 17x7 Fronts
10.90@125 1.47 | + GPI VVT Cam + BW Ported Heads + CD 3800
Pro Stock John is offline   Reply With Quote
Old 11-11-2013, 08:35 PM   #8
blufin

 
blufin's Avatar
 
Drives: Fire Engine
Join Date: Oct 2008
Location: WPB, Florida
Posts: 1,406
Quote:
Originally Posted by Pro Stock John View Post



Sent from my iPhone using Tapatalk
Is that picture from today? In the mid 80's down here!
__________________
12.618 @ 110.75 Bone Stock 1/4 mile
8.165 @ 86.52 Bone Stock 1/8 mile
11.189 @ 124.44 on a 1.73 60' TVS2300 3.4 pulley, JRE tuned, Kooks LT headers and HF cats, MBRP catback exhaust, CAI intake, ADM scoop. Stock wheels/tires.
Sold
blufin is offline   Reply With Quote
Old 11-11-2013, 09:06 PM   #9
jbrown13
 
jbrown13's Avatar
 
Drives: 2011 Camaro SS L99
Join Date: Jan 2012
Location: Perry, GA
Posts: 544
John, I just looked at mine with 305/45R18 MTs on the rear and it looks just as high as yours. My tires are about wore out, but as best I could measure about 2-1/2" to 2-3/4" from wheel well to tire. I have not removed any sprung weight from my car, but gas tank is only about at 1/4.

Jeff
jbrown13 is offline   Reply With Quote
Old 11-11-2013, 09:42 PM   #10
Padre
Only drives on Sundays
 
Padre's Avatar
 
Drives: 11 2SS/RS, Black/Inferno, L99 A6
Join Date: Feb 2011
Location: Dalton, GA
Posts: 2,416
Quote:
Originally Posted by white 2SS/RS View Post
Now that.....is good information!


John, I lowered mine (BMR) and love the look, but once I did, I lost 60-foot time until I also ditched the front sway. Seems to help weight transfer.

But now I'll be checking the axle angle as suggested above with my new 9" DSS, which is going in as I type.

Padre
__________________

The "Heretic": '11 2SS/RS L99 A6 Black/Inferno. Build Journal, Videos
D1SC GT9 JBA-LT = 720/680 | 10.330 @ 133.61, 1.546 sixty... Camaro King at ECS V, Darlington.
Padre is offline   Reply With Quote
Old 11-11-2013, 09:43 PM   #11
Pro Stock John
Writer
 
Pro Stock John's Avatar
 
Drives: 2010 SS / 1951 Mercury
Join Date: May 2009
Location: Chicago, IL
Posts: 6,429
I'll have to measure but I definitely have to lower this car, and the rake has got to go.
__________________
PROJECT HEAVY CHEVY
Camaro Now: Mods for the Masses Part I | Part II
13.15@106 1.95 | 100% Stock
12.37@112 1.85 | + Kooks Headers/Cats + 20" 555R + CAI + BW TB + UDP + Tune
12.06@113 1.70 | + CD 3200 + 18" NT05R + RCR Intake + NE OTR + GPI Tune
11.84@115 1.59 | + 3.91s + Race Star 17x7 Fronts
10.90@125 1.47 | + GPI VVT Cam + BW Ported Heads + CD 3800
Pro Stock John is offline   Reply With Quote
Old 11-11-2013, 10:26 PM   #12
Bad70supreme


 
Bad70supreme's Avatar
 
Drives: 2010 aqua blue SS/RS M6
Join Date: Feb 2010
Location: plainfield, IL
Posts: 2,701
My car has a rake to it also, but on launch it dips in the rear and the front lifts some. I removed the sway bar...seems to have helped. I would think level and stiffer in the rear would help. Have you thought about running a rear drag bar? I was thinking 1" lowering springs and a drag bar in the rear for mine. I actually think mine dips to much and is wasting energy that could be put to the ground.
__________________
11.37@120 H/C stock block N/A
On the quest for 10s N/A
Bad70supreme is offline   Reply With Quote
Old 11-12-2013, 12:27 AM   #13
toNspahreP
Account Suspended
 
Drives: SS
Join Date: Aug 2013
Location: jawja
Posts: 129
Quote:
Originally Posted by Pro Stock John View Post
I'm not looking to go super low and slam the car but I will have to lower it, car is visually so raked that has to be affecting weight transfer.

Nspar, Are the COPO front struts different, more extension? Jeff mentioned that the other day I found that interesting.
The extension is much longer vs the factory strut, but thats not what makes them work. It's the fact that they use a 16" coil spring. I dont have one sitting in front of me, but I'd put the factory spring at 7-8 inches? Even if the front struts would travel farther then they do, you wouldnt have any spring pushing the car up, which limits front end lift. The 16" spring pretty much pushes the front all the way up when you launch, maximizing weight transfer to the back. The 11-12s had a 14" 150lb spring, but the 13-14 copos have a 16" 125lb spring, as it improved weight transfer and generally helped the cars 60 foot. Took some digging and waiting to get into contact with the right guy at strange, but finally dug out the spring info a month or two ago.



"
Strange Engineering <strangeeng1@ameritech.net>




to me

The latest ones use a 16” 125lbs spring. The front brake kit is available thru MPR Race cars. The front spindle needs to be modified for the kit to work and he has done all of those modifications.


Part number for the springs is SP16125A. They are sold as each so you will need 2 of them. Thanks

Jim Buschman
Assistant Sales Manager|Strange Engineering"
toNspahreP is offline   Reply With Quote
Old 11-12-2013, 12:28 AM   #14
toNspahreP
Account Suspended
 
Drives: SS
Join Date: Aug 2013
Location: jawja
Posts: 129
And from MPR

I can build the front drag race Strange brakes using your Camaro spindles and hubs. The both need to be machined and I also have the brakes in stock. If you ship the spindles and hubs to me I can ship them back with the brakes installed for $1000, this includes spindle and hub modifications and assembly, shipping is not included. You also need to modify the brake pedal assembly to eliminate the power brake booster. Using your pedal assembly the COPO style kit including the master cylinder and firewall brace (just like the COPO) would cost $400. Normal assembly time frame would be about a week but my shop will be closed now until Oct 28th. Let me know if you are interested in any or all of these parts. Strange does not have a vented rotor kit developed for the new Camaro yet and I'm not sure they have any plans to do so. If the brake pedal and master cylinder id done properly I think this brake system would work good for light street use. Thanks!

Mike Pustelny @ MPR



So these aren't quite shelf parts, other then the struts/springs, but they're available if you dig deep enough.
toNspahreP 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 05:40 PM.


Powered by vBulletin® Version 3.8.9 Beta 4
Copyright ©2000 - 2016, vBulletin Solutions, Inc.