427 alignment
Race Director
Joined: Dec 2013
Posts: 12,502
Likes: 3,631
GM sets the alignment on the corvettes more aggressive (read favoring the inside corners of the tires on a flat stance since it will put the outer tires flat to the ground for the best grip on hard banking), meaning that you will wear the tires out faster if all you are doing is street driving the car.
With tires around $2K to replace, if you are only going to be DD the car and not push it, then spend the $150 to have the alignment changed to street only alignment.
Here is the Pfad specs, so print it out, and have the tech use the street spec.
http://www.pfadtracing.com/docs/camb...t-settings.pdf
With tires around $2K to replace, if you are only going to be DD the car and not push it, then spend the $150 to have the alignment changed to street only alignment.
Here is the Pfad specs, so print it out, and have the tech use the street spec.
http://www.pfadtracing.com/docs/camb...t-settings.pdf
Last edited by Dano523; Aug 25, 2014 at 09:58 PM.
Melting Slicks
Joined: Jan 2004
Posts: 2,299
Likes: 387
From: Fort Worth TX
St. Jude Donor '14-'15
The Pfadt street numbers are GM specs; a little too much camber for us non-performance drivers and will cause inside tire wear on the fronts. I have found that -.5 keeps the tread wear flat across the surface of the tire. I use just a touch of toe in; .065 works well....
Go for the Firestone lifetime alignment and use it once a year....cheap insurance Vs. the cost of a sent of tires.
Go for the Firestone lifetime alignment and use it once a year....cheap insurance Vs. the cost of a sent of tires.
Drifting
Joined: Oct 2003
Posts: 1,503
Likes: 30
From: Uniontown Alabama
GM sets the alignment on the corvettes more aggressive (read favoring the inside corners of the tires on a flat stance since it will put the outer tires flat to the ground for the best grip on hard banking), meaning that you will wear the tires out faster if all you are doing is street driving the car.
With tires around $2K to replace, if you are only going to be DD the car and not push it, then spend the $150 to have the alignment changed to street only alignment.
Here is the Pfad specs, so print it out, and have the tech use the street spec.
http://www.pfadtracing.com/docs/camb...t-settings.pdf
With tires around $2K to replace, if you are only going to be DD the car and not push it, then spend the $150 to have the alignment changed to street only alignment.
Here is the Pfad specs, so print it out, and have the tech use the street spec.
http://www.pfadtracing.com/docs/camb...t-settings.pdf
I found out this information when I went to the Chevrolet Dealership to change out the very bad worn tires on my Z06.
Le Mans Master
Joined: May 2001
Posts: 8,244
Likes: 850
From: Hamilton Square NJ, Ocean City N. J. Key Biscayne Fla.
The Pfadt street numbers are GM specs; a little too much camber for us non-performance drivers and will cause inside tire wear on the fronts. I have found that -.5 keeps the tread wear flat across the surface of the tire. I use just a touch of toe in; .065 works well....
Go for the Firestone lifetime alignment and use it once a year....cheap insurance Vs. the cost of a sent of tires.
Go for the Firestone lifetime alignment and use it once a year....cheap insurance Vs. the cost of a sent of tires.
The Pfadt street alignment was better than original specs. But, still too "aggressive". I got double the tire life than OEM. But, still only 20K on Invos. Didn't bother me because I buy new tires every 20K anyway.
Thread Starter
Burning Brakes
Joined: Jul 2009
Posts: 813
Likes: 70
From: Delaware, OH
picking it up at noon today and will post the alignment spec used. I left the Pfadt specs with tech but left it up to him to set. 6500 miles and tires appear to be wearing fine.
At the bash in April I asked the marketing mgr for corvette and he said 427 is set up between zo6 and GS.
At the bash in April I asked the marketing mgr for corvette and he said 427 is set up between zo6 and GS.
Corvette Stories
The Best of Corvette for Corvette Enthusiasts
Top 10 Most Expensive Corvettes Ever Sold on Bring A Trailer
Brett Foote
10 Things Every Corvette Owner Needs (2026 Edition)
Michael S. Palmer
8 Most "Only Corvette Owners Understand" Quirks and Problems
Pouria Savadkouei
10 Reasons the C6 Z06 is Still A Performance Benchmark After 20 Years
Joe Kucinski
How Much Horsepower Every Corvette Engine "LOST" in 1972
Joe Kucinski
Top 10 DOs and DON'Ts for Protecting Your Convertible Top!
Michael S. Palmer
Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!
Joe Kucinski
150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter
Joe Kucinski
8 Coolest Corvette Pace Cars (and Replicas) of All Time
Verdad Gallardo
Thread Starter
Burning Brakes
Joined: Jul 2009
Posts: 813
Likes: 70
From: Delaware, OH
427 alignment update
Just got my car back from dealer. Great tech and service. Replaced steering gear(rack) and car is tighter and problem gone. Had alignment done with as close to Pfadt street alignment as possible.
front camber before:-1.1, after:-0.8 caster:7.9,toe-0.01. Tech said this was best done with out going into red zone whatever that means. But now I have a less aggressive alignment for best tire wear and street use. No pulling and tracks beautiful.
cheers
front camber before:-1.1, after:-0.8 caster:7.9,toe-0.01. Tech said this was best done with out going into red zone whatever that means. But now I have a less aggressive alignment for best tire wear and street use. No pulling and tracks beautiful.
cheers