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#1
DIY Corvette Camber adjustment
LD85
Posted on: 2008/8/4 14:22
I read in one of Kevins (CentralCoaster) posts that when checking the REAR camber,,,,
the top of the rim should measure 1/8" farther from the vertical plane than the bottom of the wheel. (neg-camber)
What shold it be for the front? Currently my front actually hasa postivie camber.
the top of the rim should measure 1/8" farther from the vertical plane than the bottom of the wheel. (neg-camber)
What shold it be for the front? Currently my front actually hasa postivie camber.
#2
Re: DIY Corvette Camber adjustment
BillH
Posted on: 2008/8/4 14:42
Without reading all of Kevin's post, it's kinda hard to picture.
Basically with negative camber(both front & rear) the top of the wheel will point in towards the center of the car.
If you want to build a really inexpensive camber gauge, go to Sears and get the 8 inch digital level, I got one on sale for $37. Get a piece of 1 in. square tubing that fits your rim size, 17 inch or whatever. The level has a magnetic base, stick it on the tubing, hold the tubing vertically on the wheel and you can take a camber reading.
I made one of these just for the hell of it and checked the Sear's level against my Longacre Racing camber gauge. They were very close.
Basically with negative camber(both front & rear) the top of the wheel will point in towards the center of the car.
If you want to build a really inexpensive camber gauge, go to Sears and get the 8 inch digital level, I got one on sale for $37. Get a piece of 1 in. square tubing that fits your rim size, 17 inch or whatever. The level has a magnetic base, stick it on the tubing, hold the tubing vertically on the wheel and you can take a camber reading.
I made one of these just for the hell of it and checked the Sear's level against my Longacre Racing camber gauge. They were very close.
#3
Re: DIY Corvette Camber adjustment
CentralCoaster
Posted on: 2008/8/4 15:22
Camber measurement on 17" wheels (top wheel lip inboard by this amount):
-0" = 0*
-1/8" = -.4*
-1/4" = -.8*
-3/8" = -1.2*
-1/2" = -1.6*
-5/8" = -2.0*
-3/4" = -2.4*
-7/8" = -2.7*
-1" = -3.1*
VB&P recommended Front/Rear
Daily Driver = 0* / 0*
Adv. Street = -.25* / -.5*
Track = -1-3* / -.75-2.5*
AutoX = -1.5-3* / -.75-2.5*
-0" = 0*
-1/8" = -.4*
-1/4" = -.8*
-3/8" = -1.2*
-1/2" = -1.6*
-5/8" = -2.0*
-3/4" = -2.4*
-7/8" = -2.7*
-1" = -3.1*
VB&P recommended Front/Rear
Daily Driver = 0* / 0*
Adv. Street = -.25* / -.5*
Track = -1-3* / -.75-2.5*
AutoX = -1.5-3* / -.75-2.5*
#4
Re: DIY Corvette Camber adjustment
BrianCunningham
Posted on: 2008/8/4 15:32
This is the best page on aligning DIY alignments for C4 Corvettes
http://www.vettenet.org/align.html
http://www.vettenet.org/align.html
#5
Re: DIY Corvette Camber adjustment
LD85
Posted on: 2008/8/4 16:33
Awesome guys, I am taking a vacation week this week so I'm gonna puttz around with this.
#7
Re: DIY Corvette Camber adjustment
SpectatorRacing
Posted on: 2008/8/4 18:28
Such a timely post...I'm about to purchase a camber guage.
If I get a magnetic one will any of the bases out there work?
If I get a magnetic one will any of the bases out there work?
#8
Re: DIY Corvette Camber adjustment
ghoffman
Posted on: 2008/8/4 20:25
We have faced the same issue and made a really easy tool to use for toe, thrust angle easily. This was one of those made by popular demand things. I was using it for years and guys that saw it made me put it into production! The tool is now made with a slotted wheel interface plate for all 5 lug cars. Share it with your BMW and Rustang friends!

Here are the instructions:
http://hardbarusa.com/uploads/image/A ... ool%20instructions%20rev1(1).pdf

Here are the instructions:
http://hardbarusa.com/uploads/image/A ... ool%20instructions%20rev1(1).pdf
#9
Re: DIY Corvette Camber adjustment
BillH
Posted on: 2008/8/5 15:10
Quote:
This is a pretty good page, it's been around for quite a while.
The only thing I don't like is using the jack stands with parallel strings. I've seen so many people do this and have errors of +/- 1/8inch. I see the same thing at the track where guys lay strings over the rear tires on top of the raised letters or on rears that have the toe screwed up.
The same thing can happen with the Nascar style toe plates that just lay against the tires v.s. Gary's adapters which would be very accurate.
If you are going to string the car, you need an accurate, repeatable setup. I build my own alignment bars and they're within 1/32 in. to the centerline of the car.
BrianCunningham wrote:
This is the best page on aligning DIY alignments for C4 Corvettes
http://www.vettenet.org/align.html
This is a pretty good page, it's been around for quite a while.
The only thing I don't like is using the jack stands with parallel strings. I've seen so many people do this and have errors of +/- 1/8inch. I see the same thing at the track where guys lay strings over the rear tires on top of the raised letters or on rears that have the toe screwed up.
The same thing can happen with the Nascar style toe plates that just lay against the tires v.s. Gary's adapters which would be very accurate.
If you are going to string the car, you need an accurate, repeatable setup. I build my own alignment bars and they're within 1/32 in. to the centerline of the car.
#10
Re: DIY Corvette Camber adjustment
BrianCunningham
Posted on: 2008/8/5 19:38
WOW the price range on those digtal levels is something else!
http://www.sears.com/shc/s/search_101 ... 605?keyword=digital+level
The hardest part is find a level spot of ground.
If you can ZERO the digital levels out, like my digital calipers, then all you should need is a good spot on the car, frame perhaps, that's level, and align the car to it.
http://www.sears.com/shc/s/search_101 ... 605?keyword=digital+level
The hardest part is find a level spot of ground.
If you can ZERO the digital levels out, like my digital calipers, then all you should need is a good spot on the car, frame perhaps, that's level, and align the car to it.
#11
Re: DIY Corvette Camber adjustment
LD85
Posted on: 2008/8/5 20:07
UPDATE: Called a new local speed shop that is big into racing Suspensions etc, they aliened my car to stock specs for $69.00 Only took 1.5 hours.
Drives and tracks perfect, it was way off on almost everything since i welded on the new shock towers in the front, lowered the car, and put new brackets on teh rear.
Car is lowered to REAR 26-3/4 and FRONT 25-7/8
www.performancedrivenllc.com
Drives and tracks perfect, it was way off on almost everything since i welded on the new shock towers in the front, lowered the car, and put new brackets on teh rear.
Car is lowered to REAR 26-3/4 and FRONT 25-7/8
www.performancedrivenllc.com
#12
Re: DIY Corvette Camber adjustment
BrianCunningham
Posted on: 2008/8/6 3:05
let us know how it performs for you.BTW I stopped by SEARS today, it turns out those digital levels are ON SALE!
Pick one up $15 off, this things great!
Thanks for the tip!
#13
Re: DIY Corvette Camber adjustment
BillH
Posted on: 2008/8/6 13:09
Quote:
Great, it's also easy to build a rim adapter like the one that comes with the Smart camber. I built and calibrated one for my Longacer bubble camber/castor gauge after considering what Longacer charged for one.
Same way with the Smart Camber, they cost $150 and the hands free adapter is an additional $50. Their resolution isn't any better than Sears ( 1/2 degree).
I also checked the Sears against the Smart Camber in the raceshop, their readings were identical.
BrianCunningham wrote:let us know how it performs for you.
BTW I stopped by SEARS today, it turns out those digital levels are ON SALE!
Pick one up $15 off, this things great!
Thanks for the tip!
Great, it's also easy to build a rim adapter like the one that comes with the Smart camber. I built and calibrated one for my Longacer bubble camber/castor gauge after considering what Longacer charged for one.
Same way with the Smart Camber, they cost $150 and the hands free adapter is an additional $50. Their resolution isn't any better than Sears ( 1/2 degree).
I also checked the Sears against the Smart Camber in the raceshop, their readings were identical.
#14
Re: DIY Corvette Camber adjustment
CentralCoaster
Posted on: 2008/8/6 17:24
Brian which one did you get?
http://www.sears.com/shc/s/search_101 ... ols&keyword=digital+level
Macklanburg-Duncan Electronic Digital Protractor
Sears item #00940195000
Mfr. model #09424516
$199.99
0.1* resolution
Sola Messwerkzeuge 24" Magnetic Electronic Digital Box Level w/ Carry Bag
Sears item #00960524000
Mfr. model #ENWM 60 T
$209.99
Johnson Electronic Inclinometer
Sears item# 00981571000 Mfr. model# 40-6060
$129.99
0.1* resolution
Craftsman 10 in. Digital LaserTrac® Level
Sears item #00948292000
Mfr. model #48292
$49.99
0.1* resolution (and laser)
Craftsman Digital Torpedo Level
Sears item #00948295000
Mfr. model #48295
$34.99
http://www.sears.com/shc/s/search_101 ... ols&keyword=digital+level
Macklanburg-Duncan Electronic Digital Protractor
Sears item #00940195000
Mfr. model #09424516
$199.99
0.1* resolution
Sola Messwerkzeuge 24" Magnetic Electronic Digital Box Level w/ Carry Bag
Sears item #00960524000
Mfr. model #ENWM 60 T
$209.99
Johnson Electronic Inclinometer
Sears item# 00981571000 Mfr. model# 40-6060
$129.99
0.1* resolution
Craftsman 10 in. Digital LaserTrac® Level
Sears item #00948292000
Mfr. model #48292
$49.99
0.1* resolution (and laser)
Craftsman Digital Torpedo Level
Sears item #00948295000
Mfr. model #48295
$34.99
#15
Re: DIY Corvette Camber adjustment
BrianCunningham
Posted on: 2008/8/6 18:11
Quote:
This one:
Quote:
That way I have a laser, which can come it handy for both aligning the car and at home.
It was $15 OFF at the local SEARS
I like how it tells you the temperature when you turn it on.
CentralCoaster wrote:
Brian which one did you get?
This one:
Quote:
Craftsman 10 in. Digital LaserTrac® Level
Sears item #00948292000
Mfr. model #48292
$49.99
0.1* resolution (and laser)
That way I have a laser, which can come it handy for both aligning the car and at home.
It was $15 OFF at the local SEARS
I like how it tells you the temperature when you turn it on.
#16
Re: DIY Corvette Camber adjustment
CentralCoaster
Posted on: 2008/8/6 18:15
Wow, every bit of that is useful for a track car. I'm heading to sears.
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