ZR-1 Net Registry Forums  

Go Back   ZR-1 Net Registry Forums > C4 ZR-1 > C4 ZR-1 Technical Postings

Reply
 
Thread Tools Display Modes
Old 09-27-2020   #1
Zman
 
Join Date: Jun 2019
Location: WI
Posts: 131
Default Negative Camber?

Educate me please. I absolutely love the way this car corners. It does get ?over reacting? at high speeds. It is quite noticeable, in a good way really in general. It seems excessive and I am wondering why? Just tilt your head sideways while looking at the pictures..... Idk
Zman is offline   Reply With Quote
Old 09-27-2020   #2
ZWILD1
 
ZWILD1's Avatar
 
Join Date: Aug 2004
Location: Spring Grove ,Pa.
Posts: 257
Default Re: Negative Camber?

From 1983 to 90 I worked at an independent tire shop. I did anything suspension and 2 and later 4 wheel alignments. Most cars come from the factory with up to 1 degree of positive camber. Auto manufacturers were most concerned with ride quality first and foremost not performance. I had many owners who auto crossed come to me with their own individual specs. To the auto crossers tire wear wasn't a concern. Remember with the Corvette you also have rear camber and toe adjustments. There are baselines for daily drivers, street performance, auto cross, and full on track usage. Here is a link with some recommendations for different usages.

https://tech.corvettecentral.com/201...ignment-specs/
__________________
91 Turquoise Metallic Haibeck 525 #0134
ZWILD1 is offline   Reply With Quote
Old 09-27-2020   #3
ZWILD1
 
ZWILD1's Avatar
 
Join Date: Aug 2004
Location: Spring Grove ,Pa.
Posts: 257
Default Re: Negative Camber?

Here is Marc Haibeck's alignment settings from his website. Scroll to the last page.

http://zr1specialist.com/HAT%20Web/p...20Handling.pdf
__________________
91 Turquoise Metallic Haibeck 525 #0134
ZWILD1 is offline   Reply With Quote
Old 09-27-2020   #4
Mikey
 
Join Date: Jul 2020
Location: Nashville TN
Posts: 323
Default Re: Negative Camber?

If your bubble level method is accurate then the tire has about 2 degrees negative camber. I've run more for road course track handling but street max I like is about 1.5 front and .5 rear.
Mikey is offline   Reply With Quote
Old 09-28-2020   #5
Zman
 
Join Date: Jun 2019
Location: WI
Posts: 131
Default Re: Negative Camber?

Thanks for the info! I was a little concerned about the stance of the front tires until I confirmed that they both sit the same way. Mike, I wish I had that spanner wrench you were looking for, this car sits a tad too low for the roads l run on.

The tires are dated March of 2016 and are wearing well, surprisingly.

I would definitely say this setup corners much more confidently than the stock Camber set up. It does keep you on the steering a bit more on a straight bumpy road though.
Attached Images
File Type: jpg BB5AC6BB-DECA-455C-94CE-7F866D9D49E9.jpg (141.4 KB, 14 views)
File Type: jpg C754B0FA-08A7-4FB4-9B79-441139462409.jpg (158.4 KB, 15 views)
Zman is offline   Reply With Quote
Old 09-28-2020   #6
Zman
 
Join Date: Jun 2019
Location: WI
Posts: 131
Default Re: Negative Camber?

Quote:
Originally Posted by Mikey View Post
If your bubble level method is accurate then the tire has about 2 degrees negative camber. I've run more for road course track handling but street max I like is about 1.5 front and .5 rear.
Did you ever lower your 368 in the rear yet? We are wanting to trade adjustments lol.
Zman is offline   Reply With Quote
Old 09-28-2020   #7
viper107
 
viper107's Avatar
 
Join Date: Dec 2019
Location: st louis mo
Posts: 749
Default Re: Negative Camber?

Quote:
Originally Posted by Zman View Post
Thanks for the info! I was a little concerned about the stance of the front tires until I confirmed that they both sit the same way. Mike, I wish I had that spanner wrench you were looking for, this car sits a tad too low for the roads l run on.

The tires are dated March of 2016 and are wearing well, surprisingly.

I would definitely say this setup corners much more confidently than the stock Camber set up. It does keep you on the steering a bit more on a straight bumpy road though.
check your caster also,thats your handling feel in the steering reaction/camber is your handling footprint,grip
__________________
95 admiral blue z(sold)/ / 93 ruby z(sold) 91 steel blue z/95 aqua z haibeck 510, 91 callaway 415 areobody #5
viper107 is offline   Reply With Quote
Old 09-28-2020   #8
IM28702
 
Join Date: Aug 2020
Location: Ladson, SC
Posts: 18
Default Re: Negative Camber?

As a long time Autocrosser, I can also say check the toe. Toe out in the front will make it very lively on the slow track, but a bit nervous at speed.

I think the bottom line here is that you should hit an alignment shop and at the least see what it's set at.
IM28702 is offline   Reply With Quote
Old 09-28-2020   #9
Karl
 
Karl's Avatar
 
Join Date: May 2013
Location: Chicago
Posts: 980
Default Re: Negative Camber?

Because the car is lowered you may need to visit Firestone for the alignment. My current Z is setup virtually the same except for the bump steer kit.
__________________
1993 ZR-1 #211 Yellow On Beige Beast #2
1992 ZR-1 #427 Black On Black *Sold*
1985 L98 Blue On Blue *Sold*
Karl is offline   Reply With Quote
Old 09-28-2020   #10
Zman
 
Join Date: Jun 2019
Location: WI
Posts: 131
Default Re: Negative Camber?

I'm in over my head understanding all that! Great to know we can dial the drive in with such detail. I'm not going to change anything yet. I didn't notice anything different driving this home 1200 miles besides it was quick to change positions in the lane at 85mph when the road was uneven. After leaving the interstate system and driving on my home turf is when I noticed how it carved out the road differently. Then I have to be completely honest, when cleaning the filth out of the engine compartment I freaked out when I saw how CROOKED my front tires were!

That's when I googled....Camber....to calm myself down.

I have learned a ton already!
Zman is offline   Reply With Quote
Reply


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 -4. The time now is 06:14 AM.


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, vBulletin Solutions Inc.
Copyright ZR-1 Net Registry 2020